Manual Apen Group

APEN GROUP reserves the right to change products and documents as required.code HG0107.11GB ed.A-1105 rev.11

WARM AIR HEATER SERIES PLUS

Pag. 1

PLUSMODULATION

Warm Air Heater

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User,Installation,

andMaintenance Manual

NEW SERIES PL

code HG0107.11GB ed.A-1105 rev.11 APEN GROUP reserves the right to change products and documents as required.


Pag. 2

SUMMARY

SECTION 1. GENERAL WARNINGS ..................................................... 4

SECTION 2. SAFETY WARNINGS ........................................................ 42.1 Fuel ............................................................................................ 42.2 Gas Leaks .................................................................................. 42.3 Voltage ....................................................................................... 42.4 Use ............................................................................................. 52.5 Maintenance ............................................................................... 52.6 Transport and Handling ................................................................ 5

SECTION 3. TECHNICAL FEATURES .................................................. 63.1 Efficiency .................................................................................... 73.2 Technical Data ............................................................................ 73.3 Dimensions ................................................................................. 83.4 Operating Cycle........................................................................... 103.5 Operation, Air/Gas Premix, and Setting ........................................ 123.6 Modulation .................................................................................. 123.7 Room Compensation ................................................................... 133.8 Working with Kondensa.net ......................................................... 14

SECTION 4. USER’S INSTRUCTIONS ................................................ 154.1 Basic Working Mode (no Accessories) ......................................... 154.2 Working with a Remote Control (G15100) ..................................... 164.3 Working with a Chronothermostat ................................................ 174.4 Running and Setting the Chronothermostat ................................... 184.5 Antifreeze Protection ................................................................... 214.6 Room Compensation ................................................................... 214.7 Summer Ventilation ..................................................................... 214.8 Working with APEN Remote Control (G15950) ............................. 23

SECTION 5. APPROVAL CERTIFICATE ............................................... 24

SECTION 6. INSTRUCTIONS TO THE INSTALLER ........................... 286.1 General Installation Rules ............................................................ 286.2 Installing the Heater ..................................................................... 296.3 Flue Piping .................................................................................. 326.4 Terminal Layout ........................................................................... 346.5 Electrical Wiring .......................................................................... 386.6 How to Connect an External Gas Valve ........................................ 396.7 Gas Connections ......................................................................... 406.8 Wiring the Remote Control to CPU-PLUS Card ............................. 40



Pag. 3

SECTION 7. INSTRUCTIONS TO SERVICE STAFF ............................ 417.1 Country Table - Gas Category ...................................................... 417.2 Gas Setting Data Table................................................................ 427.3 First Start-up ............................................................................... 437.4 Combustion Analysis ................................................................... 447.5 Conversion to Liquid Propane Gas................................................ 457.6 Conversion to G25 - G25.1 Gas.................................................... 467.7 Conversion to G2.350 Gas ........................................................... 467.8 Maintenance ............................................................................... 477.9 Cleaning the Exchanger ............................................................... 487.10 Demolition ................................................................................... 487.11 Replacing the Modulation Card ..................................................... 497.12 Replacing the Gas Valve and Setting the Offset ............................ 507.13 How to set Chronothermostat Parameters .................................... 517.14 How to set Remote Control Parameters ........................................ 517.15 CPU-PLUS Card Parameters ....................................................... 52

SECTION 8. TROUBLESHOOTING A BASIC UNIT ............................. 54

SECTION 9. TROUBLESHOOTING A UNIT WITH CHRONOTHERMOSTAT 55

SECTION 10. TROUBLESHOOTING A UNIT WITH REMOTE CONTROL 56

SECTION 11. LOCK TROUBLESHOOTING .......................................... 57

SECTION 12. WIRING DIAGRAMS ......................................................... 58

SECTION 13. SPARE PART LIST ........................................................... 61



Pag. 4

1. GENERAL WARNINGS

This manual is an essential component of the product andmust always accompany it.If this equipment is sold or transferred to another owner, makesure the manual follows it, to enable the new installer/ownerto consult it.The manufacturer disclaims any liability (under contractprovisions or otherwise) for damage to persons, animals, orobjects resulting from wrong installation or misuse, and/ornon compliance with the manufacturer’s instructions.This unit is intended only and exclusively for the use for whichit has been built. Any different, wrong, or unreasonable use isto be considered improper and therefore dangerous.For installing, running and maintaining the unit, the user shallstrictly follow the instructions stated in this manual and complywith existing national laws and regulations.Any installation, maintenance or servicing operations shall beperformed only by authorised personnel,with specific technicalskills in the heating field.First start-up, conversion to another gas type and maintenancemust be exclusively carried out by qualified personnel appointedby Apen Group authorised Service Centres, in compliance withNational laws and regulations..Installation operations shall comply with the laws andregulations existing in the Country where the appliance isinstalled.APEN GROUP’s business organization can count on awidespread network of approved Technical Support Centres.For information, contact your local Representative or directlythe Manufacturer.The unit is covered by a guarantee whose conditions andvalidity are specified on the relevant certificate.The manufacturer declares that the unit is workmanlike built incompliance with UNI, UNI-CIG, and EC technical provisions,and according to the relevant laws and to the Directive onAppliances burning gaseous fuels 90/396/EEC.

2. SAFETY WARNINGS

This section describes the safety rules for operators.

2.1 Fuel

Before starting the heater, check that:- Gas supply specifications match those written on the ratingplate- Combustion air inlet pipes (if installed) and flue dischargepipes are exclusively those specified by the manufacturer- The grid of combustion air intake system is free from debris,leaves, etc.- The gas seal of the feeding system has been tested andapproved in compliance with the law.- The heater’s fuel is the one specified for the unit- The unit is correctly sized to match required flow and includesall safety and control devices required by the law- Gas pipes and air distribution ducts for ducted heaters havebeen properly cleaned- Fuel capacity is adjusted to match equipment heat rating- Gas feeding pressure matches values on rating plate.

2.2 Gas Leaks

If you smell gas:- Do not operate electrical switches, the telephone or any otherobject or device that can cause sparks.- Immediately open doors and windows to vent the room.- Close gas valves.- call for qualified personnel.

2.3 Power Supply

The heater shall be correctly wired to an efficient groundingsystem, complying with existing regulations (CEI 64-8).

WARNING:- Check the grounding system or have it checked by qualifiedpersonnel, if necessary.- Make sure network wire gauge suits the unit rated input shownon rating plate and in this Manual.- Do not mistake neutral and phase wires.The heater can be plugged into mains using a plug-socket onlyif the latter prevents any mistake between phase and neutralwires.- The system wire gauge in general, and cable section inparticular, must suit the unit rated input shown on equipmentrating plate and in this Manual.

Do not pull electrical wires and keep them far from heatsources.REMARK: A multipole switch with fuses and contact openinggreater than 3 mm should be installed before the supply cable,in a visible and accessible position and within 3 meters fromthe control board.Have any installation or maintenance operation concerningthe electrical system be accomplished by qualified personnel.



Pag. 5

HG0030 IM 001

2.4 Use

Children and inexperienced people shall not be allowed touse any electrical appliance.The following precautions shall be adopted:- Do not touch the unit with wet or damp parts of the body and/or barefoot.- Do not leave the unit exposed to adverse weather conditions(rain, sunshine, etc.) unless the unit has been expresslydesigned to.- Do not use gas pipes to ground electrical devices.- Do not touch hot surfaces of the heater, such as flue pipes.- Do not wet the unit either with water or other liquids.- Do not put any objects on the unit.- Do not touch moving parts of the heater while it is working.

2.5 Maintenance

Before running any servicing or cleaning, disconnect powerand gas supply by means of main ON/OFF switch and/or byclosing appropriate detection devices.In case of failure and/or insufficient running standards, switchoff the heater and do not attempt to repair it directly. Contact theauthorised Service Centre.Use only original spare parts for repairs. Failure to followabove instructions could compromise the unit safety and shallvoid the warranty.If the unit is not used for long periods, shut the gas off throughgas cocks and disconnect the unit from power supply.If the unit is to be definitively decommissioned, in addition toabove suggestions, any potential source of hazard shall haveto be made inoffensive.It is mandatory that the inlet of the Venturi tube on the burner-fan assembly is kept free from any debris or obstructions (seefigure in this page).In case it is not, a backfire from the pre-mix burner might occur.

2.6 Transport and Handling

The heater is delivered fastened to a pallet and covered bypaperboard.If required, the heater can be delivered packed on a pallet, ina crate or in other forms.Unload the heater from truck and move it to the installationplace using a convenient system, suited to the weight of theload.If the unit is stored at the customer’s premises, make sure asuitable place is chosen, sheltered from rain and excessivehumidity.Any lifting and transport operations must be accomplished byskilled personnel, adequately trained on working proceduresand safety rules.Once the unit is placed in the right spot, you can start unpackingit using suitable tools and protections, where necessary.

KEEP FREE AND UNCLOGGED!

Materials resulting from unpacking shall be disposed ofaccording to relevant regulations.While unpacking the unit, check its integrity and its complianceto the order.Should damages or missing pieces result, immediately informthe supplier.The manufacturer is not liable for any damages occurredduring transport, handling, or unpacking.



Pag. 6

Attencion:before commissioning the heater, openlouvers of at least 45°

HG

0107

.08_

C2_

001

IT_e

d.06

09

3. TECHNICAL FEATURES

Modulating air heaters series PLUS have been designed toserve as heating units in industrial and commercialenvironments.Their electronic card continuously modulates betweenminimum and maximum output, adapting the output to realheating needs.They take advantage of premixing and modulation technologyin order to guarantee top efficiency levels up to 94%.The heater works as a standalone unit. In order to start it up,just connect it to power and gas supply.The unit’s heat output ranges from 11.8 to 92.0 kW.The heat exchanger complies with production requirements

for gas equipment set by EN1020 regulations.The combustion chamber is entirely built in AISI 430 stainlesssteel while tube bundles are made of AISI 441, in order toassure high resistance to corrosion of wet flue.The leading-edge design and the wide surface of the furnaceand tube bundle guarantee optimum efficiency and durability.The burner is entirely built with stainless steel, and it takesadvantage of special mechanical solutions to guaranteeoptimal reliability and performance rates, as well as highthermal and mechanical resistance.



Pag. 7

HG0107.08_ET_001 IT_ed.0609

Description U.M. m in m ax m in m ax m in m ax m in m ax m in m axType of Appliance CE Approval P.I.N.Nox class val.Rated heat input kW 20,0 26,5 24,0 34,8 25,5 38,8 34,5 47,5 40,0 58,0Rated heat output kW 18,8 24,4 22,6 31,5 24,0 35,0 32,4 43,5 37,6 53,0Efficiency % 94,0% 91,9% 94,0% 90,5% 94,0% 90,1% 94,0% 91,6% 94,0% 91,4%Ø gas connectionØ of air inlet/exhaus t pipes m mAvailable flue pressure PaPower supply VPower absorbed WAir flow rate m 3/hAvailable s tatic pressure PaNo. of fansAir tem perature increase °C 24,0 31,1 23,1 32,3 24,6 35,8 20,6 27,7 19,2 27,1Min/m ax working tem perature °C -15 60 -15 60 -15 60 -15 60 -15 60Weight kg

PLC032 PLC035 PLC043PLC024

5 5 5 5

90 90 110 120230V/50Hz 230V/50Hz 230V/50Hz 230V/50Hz

500 500 490 10002.800 2.800 4.500 5.600120 120 120 120

1 1 2 2

96 101 134 140

5

80/80 80/80 80/80 80/80 80/80

PLC054

1201

84

C13 - C33 - C53 - C63 - B230694BM3433

UNI ISO 7/1 - 3/4" M

50230V/50Hz

2452.250

Models with centrifugal fan

TECHNICAL DATA U.M. min max min max min max min max min max min max min max min maxType of Appliance CE Approval P.I.N.Nox class val.Rated heat input kW 12,5 16,5 20,0 26,5 24,0 34,8 25,5 38,8 34,5 47,5 40,0 58,0 58,0 78,0 75,0 100,0Rated heat output kW 11,8 15,1 18,8 24,4 22,6 31,5 24,0 35,0 32,4 43,5 37,6 53,0 54,5 71,5 70,5 92,0Efficiency % 94,0% 91,8% 94,0% 91,9% 94,0% 90,5% 94,0% 90,1% 94,0% 91,6% 94,0% 91,4% 94,0% 91,7% 94,0% 92,0%Ø gas connectionØ of air inlet/exhaust pipes mmAvailable flue pressure PaPow er supply VPow er absorbed WAir flow rate at T=15°C m3/hAir temperature rise °C 21,1 27,0 18,0 23,4 21,7 30,2 18,5 27,0 19,0 25,5 17,6 24,8 23,5 30,8 22,3 29,1N° & Ø of fanFan speed g/1'NOISE LEVEL U.M.Sound pressure (Lw ) dB(A)Sound pressure in free field 6m (Lp) dB(A)Min/max w orking temperature °C -15,0 60,0 -15,0 60,0 -15,0 60,0 -15,0 60,0 -15,0 60,0 -15,0 60,0 -15,0 60,0 -15,0 60,0Net w eight of heater (w ithout packaging) KgGross w eight of heater (w ith packaging) Kg 90

PL054 PL072

max

75

74,1

120

1 x 420 (27°)

5 5

46,9 47,569,542,9

73,546,9

100/100

PL035 PL043

max max max max

UNI ISO 7/1 - 1" M

PL092*

220

PL015 PL024 PL032

5 5 5 5

1.600 3.050 3.050 3.800

80/80 80/80 80/80 80/80

230V/50Hz 230V/50Hz 230V/50Hz260 260140

50 50 90 90 120

65 69

230V/50Hz 230V/50Hz

9.250

76,549,9

77,1

660

80 84

77,1 80,150,5 50,5 53,5

73,5

21692

5 5

70

1 x 350 (25°) 1 x 400 (22°) 1 x 400 (22°)

max max max

59

520 440 440

80/80 100/100

230V/50Hz

80/80110

230V/50Hz120

230V/50Hz

1.3501.050 1.270 1.270 1.3502 x 400 (22°) 2 x 420 (27°) 2 x 420 (27°) 3 x 420 (27°)

1.270 1.350 1.350

6.250 6.8005.000

97 150 191112 117 175

C13 - C33 - C53 - C63 - B230694BN4077

UNI ISO 7/1 - 3/4" M

3.1. Efficiency

The main characteristic of PLUS heaters is modulation, whichmeans that thermal power output, and therefore power inputand fuel consumption, vary according to heating request.When less heat is needed, the heater reduces gas consumptionand increases efficiency up to 94.5% (efficiency upon Hi)Intrinsic SafetyA sophisticated technique of air/gas mixing and thesimultaneous adjustment of combustion air and gas flowsprovide an increase in efficiency at minimum output.This feature increases the unit’s safety, since the air/gas ratiois always the one set by the manufacturer. As opposed toatmospheric burners, in premix units the CO2content does notchange throughout the operative range of the heater.

If combustion air fails, the gas valve shuts up. If combustion airdecreases, the valve automatically reduces gas flow withoutcompromising optimal working parameters.Low PollutionPre-mix burners equipped with an air/gas valve allow “clean”combustion with very low polluting emissions.

3.2 Technical data* For I2S category [Hungary] maximum heat input is 96.0 kw and minimum input is 72.0 kw

Models with axial fan



Pag. 8

A Combustion Air Inlet PipeF Flue Pipe

3.3 Dimensions

HG0107.08_C2_002 IT_ed.0609

HG

0107

.08_

C2_

004

IT_e

d.06

09H

G01

07.0

8_C

2_00

3 IT

_ed.

0609

HEATERMODEL A F AO TO SPL015PL024PL032PL035PL043PL054 310 100

PL072PL092

80305

120

VERTICAL FITTINGS (OPT.)

140400100100

105

127

80

HEATERMODEL A F AV TV SPL015PL024PL032PL035PL043PL054 457

PL072PL092

130

HORIZONTAL FITTINGS (STD)

100 100 511

80 80204

367105

HG

0107

.08_

ET_0

02 IT

_ed.

0609

HG0107.08_ET_004 IT_ed.0609

HG0107.08_ET_003 IT_ed.0609

HEATER SIZEMODEL L B H V HB LB IM IS ID DM GAS GO GVPL015 720 415 116 174PL024PL032PL035PL043PL054 740 620 183 352

PL072 1400 1080 894 243 283

PL092 1950 1632 1434 258 278

140

750 810

LOUVER BRACKETS GAS SUPPLY

1240 935 780

3/4"640900 650 595

296

263

690

228

530450

206

1"

264475

186

252

109387



Pag. 9

Dimensions with eased frame

Shutters, brackets and filters for heaters with eased frameare considered accessories and are not supplied with theequipment.

HEATERSIZE T DM C N M HM LM BS HS LS BF HF LF024032035043 125 550 460 450054 145072 1345 290 635 140 200 1050 130 1000 100

DIMENSIONS

905802001315

155 410 510 400

700

500

510710

1255 260 520 102

DELIVERY SHUTTERS/INTAKE

105

FILTERS

500650950

500 60080

HEATERSIZE IS IM ID024032035043 910 277054 960 22772 1084 265

BRACKETS

595 252

52



Pag. 10

pilot burner

Burner assemblyEVP

EV1EV2

Detectionelectrode

Start-upelectrode

Nozzle

Control device

Flue

Air

Gas

EVP

EV2 EV1

Heating request

Burner fan

EVP - Pilot flame

EV1 - 1st gas valve

EV2 - 2nd gas valve

A BC D E F G H

Cooling Fan

HG0040 C2 001

HG0106 C2,034

HG0106 C2,026

IMPORTANT: You can change card parameters only if achronothermostat or a remote control is installed.

Running the BurnerIf a chronothermostat or remote control is available, you canuse a NCT2 room temperature sensor to set heat request atburner start-up. No matter if electronic controls or the basicversion of the heater are available, start-up cycle is launchedonly if 7-9 terminal of CN6 board is closed on CPU-PLUS card[A]. When launching start-up cycle, the CPU-PLUS card startsburner fan [A] and the furnace is pre-washed for a defaultperiod. When pre-washing ends, the CPU-PLUS card enablesthe ACF flame control device to turn the burner on. Then, itopens the EV1 [B] and EVP [B] solenoid valves that feed pilotburner [B]. Pilot burner start-up cycle is then launched bymeans of EA ignition electrode.Instead, the ER detection electrode checks the firing of pilotflame. Once the working condition is confirmed, ACF deviceopens the main EV2 gas valve [C] thus feeding the main burner.Pilot and main burners work simultaneously for a short period,then the modulation card closes the EVP electrical valve [D],thus turning pilot burner off. Flame is monitored also on mainburner by ER detection electrode.The start-up cycle turns the burner on at intermediate capacity(about 70% of max. input). Around 30 seconds after start-up,the burner starts modulating and reaches the capacity required.During regular work, the modulation card adjusts burner heatinput based on the temperature value measured by the NTC1modulation sensor, installed on the back of the heater, nearintake of room air.

Cooling FansThe modulation card [E] controls cooling fan start up andscheduling. This schedule begins with main burner [C] startup.A delay in fan start-up prevents blowing cold air into the room.The default delay can vary from 0 to 255 seconds [C3 Parameter].If [C3] parameter is zeroed, the fan and the burner start together.

Turning off the BurnerWhen no more heat is required [F], i.e. room temperatureexceeds set point, the modulation card stops the burner [F]. Theburner fan keeps venting the furnace for the post-washingperiod. The length of this period is set by the manufacturer andcannot be changed [G].The same happens for heater cooling fans, that keep workinglong enough to cool down the heater [H].

3.4 Operating Cycle



Pag. 11

F8 - Continuous flashes of red LEDIf a chronothermostat is installed, light is steady.

Reset ButtonA button for manual reset is provided on the back of the heater.If no remote control is available, you can use this button tounlock the unit after a F1, F2, F3, or F8 lock.

Summer/Winter SwitchA summer/winter switch is installed on the back of the heater.If no remote control is available, this button allows to switchworking mode from winter (burner on) to summer (burner off- ventilation only).

REMARK: If no chronothermostat nor remote control areavailable, we recommend to remotely control reset buttonand summer/winter switch from M1 terminal board (installedinside burner compartment).

The default delay can vary from 0 to 255 seconds [C4 Parameter].

REMARK: Do not set C4 parameter below 90seconds, which is the minimum threshold for furnace coolingperiod.This is why it is forbidden to power off the unit while burneris running. If post-washing is too short and the exchanger isnot correctly cooled down, the following problems mayarise:- Shorter life of the heat exchanger and voidance of theguarantee- The safety thermostat triggers and will require manualreset.- Burner fan may break

If, during the cooling cycle, a new heat request is issued, themodulation card will wait for the fan to stop, zero any counts,and start a new cycle.

Safety ThermostatsA safety thermostat with automatical reset and positive safetyis installed for each fan on the heating module. If the sensibleelement breaks, a failure occurs.The thermostat is installed after the exchanger in order tocontrol the temperature of delivered air.When the thermostat triggers, the flame detection devicelocks, turning off the burner.This lock is displayed as F2.

Fx locksThe modulation card installed on the heater can detect 6different types of locks:F1 - Device locked due to lack of flame.F2 - Safety thermostat locked.F3 - Lock caused by burner motor.F4 - Lock caused by one of NTC sensors.F6 - CPU-PLUS card locked.F8 - Faulty flame control device.

F1 and F2 locks are caused by safety items and are non-volatile, i.e. they are not removed if you power off and then onagain the unit. They require a manual reset.F3, F6, and F8 locks require manual reset or you can power offand then on again the heater.F4 lock automatically disappears when its cause is removed.

REMARK: See user section for more information on unlockingafter F1 and F2 non-volatile locks.LEDOn the front of the unit a green LED and a red LED are provided.The green LED is on when the heater is powered while the redLED on indicates that the heater is locked.You can immediately tell which type of lock has triggered fromLED’s flashing sequence and speed, i.e.:F1 - Red LED steady onF2 - Two close flashes of red LEDF3 - Three close flashes of red LEDF4 - Four close flashes of red LEDF6 - The green and red LEDs flash alternatively



Pag. 12

Air Pressure (flow rate)

Gas

Pre

ssur

e (fl

ow ra

te)

1:1 curve

correct curve

HG0103 EG 002 IT_ed.0507

3.5 Operation, Air/Gas Premix, and SettingA burner that completely pre-mixes air and gas is mounted onPLUS heaters. Air and gas are mixed inside the blades of thefan motor assembly.Air is taken in through the Venturi pipe where gas is drawn byair vacuum. Air/gas ratio cannot be changed.The air / gas pressure ratio is 1:1 and it can be adjusted bymeans of the offset screw on the gas valve. The heater comeswith a default offset value and the screw is sealed.The burner can also be regulated by adjusting the screw on theVenturi which sets the value of maximum gas flow rate andtherefore determines the carbon dioxide content (CO2) in theflue (the offset curve changes). This setting is a factory defaultbut the screw is not sealed in order to allow conversion toanother gas.REMARK: To learn how to regulate the offset value an the CO2content, see the “Assistance by the Service Centre” section.The modulation card installed on the heater regulates themotor’s revolution speed (in DC) according to the useful heatrequired. When motor revolution speed changes, air flow ratechanges as well, thus modifying gas flow rate. Values forminimum and maximum rotation speed of the fan are set by themanufacturer and cannot be changed by the user or theinstaller.

3.6 Modulation

Suspended air heaters series PLUS are modulating units thatallow numberless power output levels between a minimumand a maximum value.Maximum output is used to quickly warm the room when theheating equipment is started. On the contrary, flame modulationallows to keep steady the temperature level required as itconstantly adjusts heat input to real requirements.This continuous automatic adjustment of heater output toroom requirements sensibly reduces the temperature ofdelivered air. It also has two other advantages: it minimisesthermal stratification (heat loss due to convective air), assuringvalues below 0.5? per meter, and it maximises heater efficiency(working at low thermal outputs, the heater delivers at efficiencylevels higher than 94%).These results can only be achieved when weather andenvironmental conditions are carefully monitored and theheater is run at optimum level.When sizing the heater, particular attention should be paid tothe number of air recirculations per hour. It is recommendedto choose a heater that, independently from its heat rating,guarantees at least two recirculations per hour.PLUS heaters are equipped with a room temperature feeler(NTC1) installed on the back of the heater where it can controlthe the temperature of room air drawn-in by fans.When modulating, the value detected by this sensor is used asfor comparison to the value set in the microprocessor.Modulation temperature value must be adjusted while theinstallation is running and it depends on the distance of theheater from the ground and on the room temperature required.The heater is usually installed at a height from 2.5 to 4 metersfrom the floor.The required temperature must be reached and maintained

HG

0103

EG

003

IT_

ed.0

507

90

91

92

93

94

95

96

65 70 75 80 85 90 95 100

Heat Input [%]

Effic

ienc

y %

18

20

22

24

26

28

T de

liver

ed a

ir

EfficiencyT delivered air

Above chart shows the efficiency trend and differences in delivered airtemperature when heat input decreases.



Pag. 13

HG

0105

EG

002

IT

but this result must be obtained with the heater running atminimum modulating temperature.Modulation temperature value is set to 21°C by the manufacturer.This value is suitable for an average installation from 3 to 5meters with room temperature ranging from 17 to 18°C (seeprevious chart).

For information on changing modulation parameter [“REG

HG

0103

ET

005

IT_e

d.05

07

Required room temperature, at 1.5 meter from

the floor2,5 m 3m 4m 5m

15° 16° 17° 18° 19°16° 17° 18° 19° 20°17° 18° 19° 20° 21°18° 19° 20° 21° 22°19° 20° 21° 22° 23°20° 21° 22° 23° 24°

Modulation temperature to be set based on heater installation height …………………………………………Installation clearance (height)

DHW” for chronothermostat or “ST1” for remote control] andreading modulation temperature [“DELIVERY TMP” forchronothermostat or “NTC1” for remote control], see below inthis Manual.

3.7 Room CompensationIMPORTANT: This function is only available if achronothermostat or a remote control is installed.

The following paragraph describes a specific operating modeof new CPU-PLUS card that assures maximum energy efficiencyto the heater.In order to activate room compensation mode, set C1 parameterto 1.The compensation function is particularly useful when youwant to rapidly reach a comfortable room temperature andmaintain it, while reducing air stratification and, above all,consumption.Compensation uses two reference values: the temperaturemeasured by NTC2 sensor (room temperature) and the tem-perature detected by NTC1 (modulation sensor).Set A12 parameter to 1 to activate NTC2 sensor.While room temperature gets nearer to set point value,modulation temperature changes linearly based on A16 andA24 parameter settings.Therefore, at the beginning, the heater can deliver maximumoutput to quickly reach the room temperature value set by theuser.Then, it can reduce its output and increase its efficiency byheating the room with slightly cooler air.Air stratification in the room is therefore reduced, together withheat loss.Default values set by the manufacturer are the following:

Modulation temperature [ST1 or REG DHW] 21°CCompensation neutral areaA24 2°CCompensation factor A16 2°C

A24 parameter sets the room temperature range wherecompensation is active. A16 parameter is a multiplier that

room temperaturemod

ulat

ion

tem

pera

ture

increases the efficiency of temperature reduction on ST1 setpoint [or REG DHW], as shown in previous chart.When room temperature is reached with standard settings,modulation temperature is the following:

ST1=24°C-(2°Cx2.5)=19°C

Compensation is independent from the room temperaturevalue that has been set.The following chart shows trends for room temperatures [ST2]and installation clearance from ground [ST1] during thebeginning of heating phase.



Pag. 14

To disable compensation, restore C1 parameter to 0.If you disable compensation, you have to set ST1 [or REG DHW]parameter so as to avoid following conditions:- ST1 value too highExcessive stratification and heat losses from the roof- ST1 value too lowIt takes longer to reach required room temperature.If compensation is disabled, ST1 > ST2 by a value equal to thedifference (in meters) between room sensor and modulation

C o m p e n s a t e dST1

sensor multiplied by 0.4/0.3°C.

For instructions on changing modulation parameter [“REGDHV” on chronothermostat or “ST1” on remote control] and allthe other parameters described, see below in this Manual.

3.8 Working with KONDENSA.NET

KONDENSA.NET is an interface application that can be usedto manage the heater when a CPU-PLUS card is installed.This application allows the user to quickly set up a simplenetwork to manage one or more units.Its user-friendly interface eases any regulations of differentroom temperatures and allows rapid troubleshooting whenfailures or locks occur.Please refer to KONDENSA.NET Manual for instructions onwiring, installing and using the application with heaters.



Pag. 15

4. INSTRUCTIONS TO THE USER

Read carefully the “General and Safety Warnings” section.User’s operations on the heater are limited to regulatingcontrols for heater regular running.

The following is a short description of how the heater runsusing a CPU-PLUS card with or without accessories.Different procedures are required to meet different userrequirements.

4.1 Basic Working Mode (no Accessories)This basic working mode is available on any heater and allowscontrolling it simply and directly.

REMARK: At least one room thermostat is required in orderto switch the burner on and off.

ON/OFFThe heater is turned on and off using the 7-9 terminal of M1board, installed inside the control unit.

REMARK: DO NOT power off the heater while it is runningbecause this would prevent the heat exchanger from beingcooled down, thereby reducing its life and jeopardising itsefficiency.

SUMMER/WINTERThe heater includes a unipolar switch that toggles betweensummer and winter mode (ventilation only/heating on).This switch allows the heater to be useful all year long, eitherfor heating or ventilating a room.Turn the switch on the relevant icon: winter in Winterand summer in Summer.This mode is controlled through terminals # 7-8-9 of M1terminal board in burner compartment.These contacts can also be used when a remote control isinstalled.For instructions on wirings, see the “Instructions to the Installer”section.

REMARK: The summer/winter switch on the unit must be setto winter position to remotely control this mode.Failure DisplayTwo LEDs (green and red) are installed on the front of theheater. They indicate the heater running mode (green LED)and the lock type (red LED) at a glance.Green LED on means that the heater is powered while differentflashing sequences of the red LED identify the following “F”failures and locks:F1 - Red LED steady onF2 - Two close flashes of red LEDF3 - Three close flashes of red LEDF4 - Four close flashes of red LEDF6 - The green and red LEDs flash alternativelyF8 - Red LED flashing continuouslyIf a chronothermostat is installed, light is steady.

Failures (locks) detected and reported by the CPU-PLUSmodulation card are the following:

- F1 - Flame device lock due to burner start-up failure. Beforedisplaying the lock, the CPU-PLUS modulation cardautomatically runs a sequence of reset attempts- F2 - Safety thermostat is locked since the thermostat on thefront of the heater has triggeredIf detected temperature is too high, the thermostat triggers andstops the heater.- F3 Faulty flue fan - The combustion air fan is damaged or thesignal returned to modulation card does not match the numberof revolutions required.- F4 - Faulty or wrongly wired sensor. Sensor readout exceedsmeasure range. This is valid both for NTC1 (delivery) and NCT2(room) sensors.- F6 - CPU-PLUS card is locked - This is due to a certain numberof unsuccessful attempts to turn the heater on in a given periodof time.If this occurs, the LED installed on the electronic card lights uptoo.For more information on unlock procedure, read the note in“Unlocking” paragraph.- F8- The modulation card has issued start-up signal to flamecontrol device but has not received start-up confirmationfeedback. The flame control device is faulty.

F1 and F2 locks are caused by safety items and are thereforenon-volatile, i.e. they are not removed if you power off and thenon again the unit. They require a manual reset.F3, F6, and F8 locks require manual reset or you can power offand then on again the heater.F4 lock automatically disappears when its cause is removed.



Pag. 16

HG

0107

.08_

C2_

005

IT_e

d.06

09

HG

0107

.08_

C2_

024

IT_e

d.06

09

UNLOCKINGIf the heater is locked, you can unlock it manually using thebuttonavailable at the back of the heater.Press the button and release it. The red LED turns off and theheater starts a standard operating cycle.You can remotely control reset button by connecting it to 6-9terminals of M1 board (inside burner compartment).For instructions on wirings, see the “Instructions to the Installer”section.

WARNING: If the heater does not restart after three resetattempts, call your Service Centre.

REMARK: When a F6 lock has triggered, the red LED is steadyon and the equipment does not work. If you press the resetbutton, the heater does not start and remains locked.To reset a F6 lock you need to power off and then on the unitor reinitialise the card using LOCK switch on the card itself.

4.2 Working with a Remote Control (G15100)

In order to ease your use of Plus heater, Apen Group offers anoptional device by which you can remotely control the mainfunctions of the unit.G15100 remote control allows the user to control ON/OFF [0/I] command, summer/winter switch and reset button.Please wire this remote control according to the followingdiagram.

If any maintenance is necessary, please pay attention to M1board and cable numbering.

COLORS1 - Brown2 - Grey3 - Black4 - Blue



Pag. 17

Failure DisplayIn case of failure, the chronothermostat can display somefailure messages and provide diagnostic information whilwthe red light will bw permanently lit:

Failure The display is completely off.Meaning Backup battery has run out because thechronothermostat was disconnected from mains supply formore than five hours.Power the unit on, wait until the display turns on, and set date,time and room temperature schedule as required. One houris required to restore backup battery.Note: In case of a power failure longer than 5 hours, parameterssaved on the chronothermostat are lost. All required parametersfor heater operation are permanently stored in the card installedon the heater. Therefore, only time, date, and scheduleinformation have to be reset.The chronothermostat does not require any specificmaintenance. Do not clean it with detergents and avoid usingsharp objects on it.

Resetting the UnitShould a failure occur, the failure symbol starts flashing andthe LCD displays “BOILER RESET”. To reset, do the following:- If the failure requires the user to reset the unit, the LCD showsa triangle under the K1 (RESET) key.- If you have solved the problem that caused the failure, pressK1 to restore standard operating mode.- Press K4 key to access the view of heater and/or remotecontrol failures.- “Error #” is displayed followed by the number indicating thefailure.The failures (locks) detected and logged by the modulationcard-chronothermostat assembly are those listed on page 14and described in the “Troubleshooting” section.Press KM key (in next page figure) to return to unlock menu.

REMARK: Before trying and restarting the heater, wait atleast for 20 seconds from turning it off.

4.3 Operation with a Chronothermostat

Read General and Safety Warnings sections on page 3.User’s operations on the heater are limited to regulatingchronothermostat options.

The heater operation can be completely automatic. An electronicself-checking device handles any control operations of theburner while an electronic card with built-in microprocessoruses the processor-assisted chronothermostat and a tempe-rature sensor to regulate room temperature.A chronothermostat and an electronic card control every settingand working function, whereas all safety functions are monitoredthrough flame control device and safety thermostats.

Features of the Chronothermostat• Weekly planning• 4 different daily temperature levels [T1, T2 , T3 and antifreeze]• Default base program• Temporary override of set temperature• Automatic or manual operation and scheduler• Antifreeze protection• Self-regulation of heater capacity according to roomrequirement• Display of working condition• Display of locks or failures• Reset command• No batteries required• Two-wire connection without polarityA flame displayed on the LCD indicates that the burner is on.

Chronothermostat LCD



Pag. 18

4.4 Running and Setting the Chronothermostat

Warning: Always use your fingertips to press the keys. Sharptools, such as pens or pencils, could damage the device.

Operating ModeDuring regular work, the remote control displays:· Current date and time· Room temperature· a radiator icon (CH mode)· the scheduler bar (for CH - AUT mode, if enabled)· a 4 next to K+ and K- keys.

How to Select Menu PagesWhile the chronothermostat is working in standard mode,press the KM key to open menu pages.Page 1 allows you to choose among the following options:

CH DWH INFO >>K1 K2 K3 K4

Press K4 (>>) key to switch to Page 2. The following options areavailable:

PRG SET CLK >>K1 K2 K3 K4

Use K4 (>>) key to toggle between Page 1 and 2.Language settingWhen you first turn on the chronothermostat, the menu forselecting user language appears.

K- Button

K+ Button

K1 Button K2 Button K3 Button K4 Button KM Button

M e a s u r e d

HG0103 C2,026

HourDay [MO-SU]

Heating

AlarmBurner ONOFF Mode

Heating Scheduler Chart

Text Bar

The LCD shows:· ENGLISH· OKPress K4 key (OK) to confirm.If you want to choose another language, use K+ or K- to selectit, then press K4 (OK) to confirm.Note: Any information in this Manual refer to English.

How to change user languageIf you want to change user language, press KM for about 8-10seconds until the following string appear:

INFO SET ERR >>K1 K2 K3 K4

Press K4 (>>), then K1 (LAN).Use K + and K - to select the required language.Press K4 (OK) to confirm. Wait a few seconds to quitautomatically the menu or press KM to quit immediately.How to set day and timeDay/Time Setup Mode (CLK)Press KM, then K4 (>>) to open Page 2. Use K3 (CLK) to selectsetup mode.From the menu, choose one of the following:

DAY HRS MINK1 K2 K3 K4



Pag. 19

Day/Time Setup Mode (CLK-DAY).Press K1 (DAY). Use K+ or K– to set current weekday.Days flash in turn on the LCD: from- SU Sunday to SA SaturdayDay/Time Setup Mode (CLK-HRS).Press K2 (HRS) to switch to current time setup.Use K+ or K– keys to set current time.Time display format (24 hours or AM/PM) depends on thesetting in SERVICE - SET (HRS TYPE) parameter.

Day/Time Setup Mode (CLK-MIN).Press K3 (MIN) button to switch to current minute setting.Use K+ or K– keys to set current minutes.The menu automatically closes a few seconds after setting iscomplete. To exit immediately, press KM.

How to set up the weekly schedule for Heating mode (HEAT)Press KM to open Page 1, then press K1 (CH) to select Heatingmode menu.Once the menu is open, choose one of the following:

AUT ON OFF CLKK1 K2 K3 K4

Note: In this menu, CLK relates to scheduling function and isdifferent from the CLK option previously described.

CH - AUT Heating modePress K1 (AUT) button to automatically operate room thermostat.The heater works in Heating mode following the schedule setin CH scheduler. Se below in this Manual for more details.When AUT heating mode is enabled, the scheduler bar isactive on the LCD.When this bar is active, you can force room temperature valueusing K+ or K- keys. During this operation the set roomtemperature is displayed (above ROOM T). Choose one of theavailable values.A hand is displayed to indicate that you are manually changinga parameter. The first time you change the schedule, the CHmode is automatically restored for the remote control.CH - ON Heating modePress K2 (ON) to set permanent and manual operation of roomthermostat.Heater operation in heating mode depends on selected roomtemperature.The display shows the room temperature value required(ROOM T). When it is flashing, you can change the parameterby pressing K+ or K- keys. You can choose the value within therange of accepted room temperatures.Once parameter selection has timed out, standard operationmenu is restored on the LCD.However, you can always force room temperature by choosinga value from the list using K+ or K- buttons.When ON heating mode is enabled, the scheduler bar on theLCD is disabled.

CH - OFF Heating modeIf you press the K3 (OFF) key, the heating mode is disabled.No selection is allowed when the heater runs in heating mode.When heating mode is OFF, the radiator icon and the schedulerbar disappear from the LCD.However, even when heating mode is OFF, the antifreezefeature is enabled (+5°C/+41°F)

CH - CLK (scheduler) Heating modePress K4 (CLK) key to enable scheduler heating mode. Thisforces the room thermostat to work for a fixed period at a giventemperature.The heater works in heating mode based on the selected roomtemperature and on the period set in the scheduler.Press K1 to access the scheduler setting within its range or K4to select the required room temperature from the list of availabletemperatures for the scheduler.You can change both parameters after selecting them usingK+ e K- keys.When you select this menu, default timing parameters forscheduling are displayed together with the room temperaturelevel (T1, T2, or T3) that is currently enabled based on CHscheduler schedule.The menu automatically closes at timeout. To exit immediately,press KM.When CLK heating mode is enabled, TIMER is highlighted onthe LCD.Once the scheduling has timed out, the heating mode that wasactive before starting the setup is restored.

T1, T2, and T3 values setting (before setting thechronothermostat)

In order to ease following programming operations, we suggestsetting room temperature as follows:

-T1 min. room temperature with antifreeze feature 7°C-T2 low room temperature 10 - 17°-T3 comfortable room temperature 18° - 21°

Press KM, K4 >>, and K2 (SET) keys to access the setting menufor required room temperature.Menu selection is indicated by the display of the followingstring:

<< Room Temp T1 >>K1 K2 K3 K4

T1 value is displayed. Use K+ and K- keys to change this value,then press K4 to switch to T2 and T3. The messages displayedwhen pressing K4 again do not affect heater operation.Values for T1, T2, and T3 parameters should range from +7°Cto 35? (44°F to 95°F).



Pag. 20

How to Program CH scheduler

Press KM, then K4 (>>) keys to open Page 2 of the menu.Use the K1 (PRG) key to select Program menu.Once the menu is open, choose one of the following:

DAY SET COP PREK1 K2 K3 K4

There are two ways to create a schedule:- Create a new schedule using DAY, SET and COP keys- Select a default schedule using PRE key.These schedules are not cancelled if a power failure longerthan 5 hours occurs. When power is restored, you will only needto set current day and time and choose AUT operating mode.

New SchedulePress K1 (THU) button to select the day of the week to set. PressK2 (SET) button to open temperature menu and choose totemperature you want to set for the period of time defined. Use K+ and K- buttons to set the heater’s timetable.After pressing K2 button, choose one of the following:

T1 T2 T3K2 K3 K4

T1 Sets corresponding room temperatureT2 Sets corresponding room temperatureT3 Sets corresponding room temperaturePress K2 (T1), K3 (T2), or K4 (T3) keys to select the temperatureyou want to schedule. After the selection, the initial menu isrestored.WARNING: When you start programming, parameters T1, T2,and T3 are displayed as flashing dots under the correspondingreference hour. During and after setup, parameters will bedisplayed as follows:

- T1 No graphics- T2 One dot- T3 Two dots one over the other.

Therefore, you can use K+, K-, and K2 keys to set turn on andoff times and relevant reference temperatures.At the end of setup, graphic signs (one dot, two dots or no sign)on daily schedule bar identify the operating program you havechosen.REMARK: 30 minutes is the minimum period you can settemperature for (T1,T2,T3).Since Kondensa heaters are generally installed in industrialenvironments, only two operating temperatures are set: a start-up temperature T3 (work hours temperature) and a turn offtemperature (either lower T2 temperature or T1 antifreezetemperature).By pressing K3 (COP) key, you can copy the schedule into thefollowing day. Navigate to the day to be copied (MO, for instance),press COP button, then DAY to paste the schedule into next day(TU, in this case). Repeat this step to keep copying the sameschedule throughout the week. Obviously, you can changecopied schedule using previously described procedure.When finished, restore standard operation by pressing KM.Standard operation is automatically restored 2 minutes afterlast input.

Default SchedulesPress K4 (PRE) to open the menu for selecting defaultschedules for CH scheduler. The chronothermostat allowsyou to choose one of five different schedules (see paragraphwith manufacturer’s settings).Once the menu is open, choose one of the following:· OK· CANCELPress K+ or K- to select default schedule for CH scheduler.Schedules are named from 1 to 5.Press K1 (OK) to confirm your choice. The main menu isdisplayed again in CH scheduling mode.Use K2 (CANCEL) to exit without selecting. The main menu isdisplayed again in CH scheduling mode.



Pag. 21

4.5 Antifreeze ProtectionThis function is always enabled, even if the chronothermostatis turned off.The unit starts when room temperature falls below defaultantifreeze threshold value (+ 5 °C/+41°F).Contact your Service Centre if you want to disable this protectionfeature.

Backup PowerYour chronothermostat is powered directly from the heater buthas a backup battery that prevents data losses for as long as5 hours.If backup power runs out, the LCD goes blank and it will onlybe restored when power supply is restored.

Temperature DisplayIn standard operation, the chronothermostat displays roomtemperature.Press K+ or K- buttons to read the temperature that was set.

4.6 Room CompensationSee paragraph 3.7 for a description of this function. It can beenabled by setting TSP parameters on the chronothermostat.If you want to enable/disable this function, press KM for about8-10 seconds until the following string is displayed:


Press K4 (>>) to move to the following page. The followingstrings are displayed:

LAN PAR PARC >>K1 K2 K3 K4

Press K3 (PARC) to access TSP parameters.The LCD shows:

<< PARAMC 1>>K1 K2 K3 K4

in addition to the value set for the parameter.TSP parameters are displayed under PARAMC.Set parameters following the table below:

PARAMC TSP VALUE FIELD 11 C1 1 0 - 1 17 A12 1 0 - 1 18 A16 25 1 - 99 19 A24 10 1 - 20Use K1 and K4 buttons to scroll the 21 TSP parameters. UseK+ and K - keys on the chronothermostat to change their values.After parameters have been changed, press KM for 8-10 sec.to exit.REMARK: The chronothermostat automatically restores mainLCD screen 20 seconds after last input.

REMARK: When reading or setting PARAMC 18, rememberthat its value must be divided by 10.This allows entering decimals, too (example: if you enter 25,the number actually used is 2.5).REMARK: When reading or setting PARAMC 19, rememberthat its value must be divided by 5.

4.7 Summer VentilationYou can run this function either in MANUAL or AUTOMATICmode.In both cases you have to set TSP A35 parameter (PARAMC 10on the chronothermostat) to 1.REMARK: In order to change TSP parameter, follow theprocedure described for room compensation function.

To activate ventilation only, first set DHV parameter toappropriate mode.Please follow the procedure below:Press KM to display Page 1. The following options are available:


Press K4 (>>) key to access Page 2. The following options areavailable:


Press K2 (SET) key, then K4 (>>) until you reach the followingscreen:

<< PROGR DHV >>

Use K+ and K - keys to set DHV value to either

1 = Manual running2 = Automatic running

according to the mode you want to set.After changing the parameter, wait a few seconds until thefigure flashes.This is a confirmation that the parameter has been set.Press KM to quit.

MANUAL MODETo manually operate ventilation, follow the procedure below:Press KM until page 1 is displayed. The following options areavailable:


Press K2 (DHV) to access the following menu:ON OFF CLKK2 K3 K4

Press K2 (ON) or K3 (OFF) to turn on or off the fans.

REMARK: When using K3 (OFF) to turn fans off, the heateralso runs post-ventilation for the default period.



Pag. 22

AUTOMATIC MODEA weekly scheduling can be set for running ventilationautomatically. The procedure is similar to the one used forsetting a heating schedule.To use automatic mode, set to 2 the DHW parameter followingthe procedure described in the previous page.REMARK: DHW parameter allows the user to set eitherautomatic or manual (ON-OFF) mode.

To automatically operate ventilation, follow the procedurebelow:Press KM to display Page 1. The following options are available:


Press K1 (RIS) key. The following screen will appear:AUT ON OFF CLKK1 K2 K3 K4

Disable heating by pressing K3(OFF).When you release the key, main screen and initial settings arerestored.Press again KM to display page 1. The following options areavailable:


Press K4 (>>) key to access Page 2. The following options areavailable:


Press K1 (PRG) key. The following screen will appear:CH DWHK1 K2

Press K2 (DHW) key to access selection menu for DHW mode:DAY SET COP PREK1 K2 K3 K4

This menu allows setting day clock and weekly schedule(DAY).

REMARK: The only formats allowed for minutes are .00 and.30. No other formats are accepted (ex: 8.00-10.30 but not7.43-20.15).

You can choose one of the following settings (K2 -(SET)):1) - schedule remains unchanged2) T1 DHW mode disabled3) T1 DHW mode enabledIf you press K1(-), K2(T1), or K3(T2) keys, the required parameteris selected for time setting. Then the menu screen for DHWmode is automatically restored .Use K+ and K - keys to scroll the schedule following theprocedure described for heating.You can also copy the schedule of one day into another usingK3(COP) key.Press KM to exit the menu and go back to initial settings.After setting the schedule, go through the following steps toenable automatic summer autoventilation:Press KM until page 1 is displayed.

The following options are available:CH DWH INFO >>K1 K2 K3 K4

Press K2 (DHW) key. The following screen will appear:AUT ON OFF CLKK1 K2 K3 K4

Press K1 (AUT) key. The initial screen is restored and theautomatic mode is enabled.To disable it, follow the procedure below:Press KM until page 1 is displayed. The following options areavailable:


Press K2 (DHW) key. The following screen will appear:AUT ON OFF CLKK1 K2 K3 K4

Disable automatic ventilation by pressing K3(OFF).

REMARK: It is not possible to display the scheduling of thisfunction when automatic ventilation is set (heating off).

REMARK: Both in manual and automatic running mode, whenventilation only is enabled, a tap icon is displayed on mainscreen.

REMARK: When using K3 (OFF) to turn fans off, the heateralso runs post-ventilation for the default period.



Pag. 23

4.8 Working with APEN Remote Control(G15950)Read General and Safety Warnings on page 3. User’soperations on the heater are limited to regulating remotecontrol options.

REMARK:When NTC2 sensor is enabled (parameter A12=1),the LCD displays the room temperature measured by thesensor. Press the Down arrow key to display air temperatureon intake (NTC1). If NTC2 is disabled (parameter A12=0),NTC1 value is displayed on LCD.See table on page 46 for a complete list of parameter values.

Heater OperationWhen heating is required and the burner turns on, the red LEDlights up.A heating request causes the unit to start when the followingconditions are met:- Remote control is ON (green LED on). Use ON/OFF key toswitch on or off the remote control. If the green LED is lit, itmeans that the heater is regularly running.- If NTC2 room sensor is enabled, the temperature it measuresmust be lower than the value of ST2 less P2 differential.

REMARK: Contact for remote control is wired in series to 7-9contact. Therefore, in any of the two opens, the burner stops.A timer can be wired to jumpers in order to automatically startup or turn off the heaters according to a schedule. Any of theavailable jumpers can be used to this purpose.When a jumper opens, the antifreeze feature is triggered ifparameter C8 is set to 1. The set point changes from ST2 to ST3and the green LED flashes.If both jumpers open, the burner turns off and the antifreezefeature, though programmed, is not enabled.

Antifreeze FeatureIn order to enable this feature, set parameter C8 to 1 and setST3 set point. According to room temperature, the burner willbe turned on using the default modulation value set for A13parameter.Temperature SettingIn general, the user shall only set the room temperature herequires using ST2 parameter.The following temperatures can also be set:- ST1 - intake air, or heater modulation temperature-ST3 - antifreeze temperature of the system.In order to change set points, do the following:

- press and hold down PRG key for a few seconds- ST1 will be displayed.- press SEL to confirm. ST1 value will be displayed.- change this value by using arrow keys.- press SEL to confirm.- ST1 reappears on the LCD. Press the Up arrow key to moveto ST2.- press SEL if you want to change ST2 and repeat previoussteps. Repeat same procedure for ST3.Press PRG again to exit change menu.

UNLOCKINGPossible working failures are displayed on remote controlLCD using the relevant coding. The code starts with an “F” (forfault) followed by the number of fault type.Failures detected and logged by the modulation card andremote control installed in the system are those listed onpages 10 and 14.An additional failure for remote control is reported asERR En “err” message on the LCD means that wires 3 and 4have been mistaken when connecting remote control andmodulation card. It can also indicate communication failurebetween card and control.

To unlock the unit, press simultaneously for 3 seconds at leastboth arrow keys.

REMARK: Wait at least 20 seconds after turning the heateroff before trying and resetting it.

WARNING: Besides storing all possible alarm conditions (F1to F8), the modulation card runs a further partial count of F1 andF2 errors: after 5 manual reset attempts, the microprocessoritself must be reset in order to continue.To reset the microprocessor you can: use the switch on thecard [UNLOCK], or power the card off and then on.

press simultaneously to unlock

a fault is displayed

green light: the unit is on

red light: the burner is on

yellow light: not used



Pag. 24

5. APPROVAL CERTIFICATE



Pag. 25



Pag. 26

Notes

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Pag. 27

Notes

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Pag. 28

HG

0103

C2,

009

6.2 Installing the Heater

The diagram on the rightshows installation height andclearance of the heater fromwalls and floor. Minimumclearance (in mm) indicatesthe space required to assureproper maintenance. Height(2,500 mm) is the minimumvalue required by the law forwall-mounted heaters.Two types of brackets areavailable on demand: fixedand revolving.

6. INSTRUCTIONS TO THE INSTALLER

Instructions for installing and setting the heater are intendedfor authorised personnel only.Read safety rules first.

6.1 General Installation Rules

If possible, the heater should be installed directly in the roomto be heated.For indoor installation, different laws and regulations applyaccording to the fuel that is used and the Country where theappliance is installed.The installer shall strictly follow the laws and regulationsexisting in the Country where the appliance is installed.

Venting OpeningsThe room where a gas-fired heater is installed must complywith relevant regulations as to the number and dimensions ofventing openings, in order to guarantee optimum combustionand safety.These openings shall comply with existing relevant nationaland international regulations.-

Codes for available brackets are the following:G15200-0N00 Fixed brackets for PL015/092G15650-0N00 Revolving brackets for PL015/035G15610-0N00 Revolving brackets for PL034/054G15615-0N00 Revolving brackets for PL072G15620-0N00 Revolving brackets for PL092

FIXED BRACKETSInstallation procedure:- Place drilling template on the wall are make sure it is perfectlyhorizontal. Fix it with tape or nails and mark drilling points.- Assemble the brackets as shown in figure below, usingsupplied parts.- Use screw anchors with outer M10 screw.

MINIMUM CLEARANCE

HG

0103

C2,

005



Pag. 29

HG

0103

C2,

007

HG

0100

C2,

011

HG

0100

C2,

016

HG

0100

C2

017

REMARK: Make sure screw and anchor size and type aresuitable for holding the heater on the specific wall type.

REVOLVING BRACKETSAssembly instructions for revolving brackets are enclosed inthe package.Revolving brackets are recommended in the following cases:a) Installation in a cornerb) Installation on a pillarc) Perpendicular installation to the wall the heater is hangedon

Note: Make sure screw and anchor size and type suitwall type and can sustain the heater.

- When assembling brackets, insert an elastic locking washerbetween bracket and locknut.- Place heater on brackets taking care to centre it and centringalso panel boring with bracket holes. Bracket ends must notlean out from the heater edge.- Lock the heater using M8 screws supplied and inserting anelastic locking washer between the screw and the bracket.



Pag. 30

Fan control thermostat

AIR FLOW DIRECTION

HG

0107

.08_

C2_

006

IT_e

d.06

09H

G01

07.0

8_C

2_00

7 IT

_ed.

0609

HG

0107

.08_

C2_

008

IT_e

d.06

09

HEATER WITH BIFILAR LOUVERS

The available accessory kits have the following codes:

G15101 Vertical louvers for PL015G15102 Vertical louvers for PL024÷PL035G15103 Vertical louvers for PL043G15104 Vertical louvers for PL054G15105 Vertical louvers for PL072G15106 Vertical louvers for PL092

Install the louvers using pre-drilled holes in heater upper andlower panel.

WALL-MOUNTED HEATER

To install the heater using eye-bolts, a kit is available (codeG14444.08).

VERTICAL HEATERPLUS heaters can be installed with downwards air blow(vertical air flow).This type of heater is not standard as it includes G14437.08 kitand additional thermostats for air fan control. These devicesare already assembled in the delivered heater.If the G14437.08 kit is to be installed on the outside, have theinstaller read the technical sheet included in the kit.

REMARK: This kit does not include suspension eyebolts. Askfor G14444.08 kit, if required (see above).

REMARK: Additional thermostats checking fan operationare installed and connected in series to STB1 and STB2thermostats (see wiring diagram JG0200.00 on page 57).



Pag. 31

Contact NO14-5

Contact44 -8

Gray wire(Neutral)

Brown wire(Phase)

Yellow-green wire(Ground)

Wire fromeased frame

Connection from the cardto A1- A2 terminals of the

relay(already wired)

codeX01061

codeX01076(230V)

FilterFirelock

Powerconnection

cable

ASSEMBLING EASED FRAME AND ACCESSORIES

In order to assemble the heater to eased frame, fancompartment shall be mounted on the heater usingsupplied screws (see figure).To fasten shutters or filters to eased frame, tighten

M8 screws supplied in the kit to the nuts on eased frame. Tofasten filters to the shutter, both nuts and M8 screws areneeded.

WIRING THE EASED FRAME

Inside burner compartment, a relay is already wired toCPU_PLUS card. The wire from eased frame shall be wired tothis relay as described in the figure. No problem if brown andgrey wires are reversed.



Pag. 32

6.3 Flue Connections

PLUS heaters have sealed combustion circuits, and the fan isinstalled before the exchanger.The flue system can have different layouts: type C (combustionair taken in from outdoor) or type B (combustion air coming fromindoor).RAPID heaters are certified for the following flue types: C13-C33-C53-C63-B23.Use approved pipes and terminals for flue systems.Intake and flue piping shall avoid the entry of objects having onedimension larger than or equal to 12 mm.

APEN GROUP certifies its own air intake and flue terminals,which shall be delivered with PLUS heaters.

The standard version of PLUS heaters is equipped withhorizontal fittings for connecting the heater to the chimney andto air intake system. These fittings are on the back of the heaterbut they can be moved to the top during installation in order toease exhaust from the roof.For large quantities, a customised version of KONDENSAheaters with fittings on the top can be supplied upon request.

Flue piping for non condensation PLUS heaters must be builtusing the following materials:- Aluminium with minimum thickness of 1.0 mm.- Stainless steel with minimum thickness of 0.4 mm. Thecarbon content of the steel must not exceed 0.2%.Use gasketed tubes to avoid any flue leaks. The gasket mustbe suited to flue temperature ranging from 120°C to 220°C(248°F to 428°F).WARNING: Plastic components SHALL NOT be used forbuilding flue exhaust because flue temperatures exceed120°C.Condensate

Flue system pipes must be insulated in order to preventcondensation. Flue gas temperature at minimum capacity isclose to condensation temperature.If flue system is longer than 5 meters (indoor) or 3 meters

(outdoor), condensate is to be drained in the following ways:- By insulating pipes, or- By using collection basin and draining condensate away fromthe heater exchanger. Apen offers the following kits:- G15825-08-HV Ø 80 condensation drain- G15825-10-HV Ø100 condensation drainThe same kit can be used either on vertical or horizontal pipes.In both cases, install a siphon to collect the condensate withoutletting flue out.G14303 kit is also available to treat condensation’s acidity.Condensation can then be disposed of anywhere.Contact your Apen Group Support Centre for more information.

Combined Flue Systems

Independent venting system is to be preferred, wheneverpossible. Since PLUS heater exhausts are pressurized, awrongly-sized collective venting system would cause problemsto the unit.However, if a combined system is required, it will have to becarefully designed and sized, so that chimney always works indepression. This will prevent a unit from venting its flue gas intoanother unit.

AIR/FLUE SYSTEM - C63 type

The following table shows how to calculate flue system components using pipes available on the market.The maximum rate of permitted ricurculation is 20%.

Model Flue CO2 Flue ratetemperature [°C] content [kg/h]

PL015 190 8,7 30,1PL024 200 8,7 47,8PL032 210 8,7 63,4PL035 210 8,7 68,8PL043 195 8,7 85,4PL054 195 8,7 102,1PL072 190 8,7 141,7PL092 165 8,7 177,4

APPLIANCE SET FOR G20 NARURAL GASModel Flue CO2 Flue rate

temperature [°C] content [kg/h]PL015 190 9,4 29,0PL024 200 9,4 45,7PL032 210 9,4 59,8PL035 210 9,4 64,2PL043 195 9,4 79,2PL054 195 9,4 100,7PL072 190 9,4 135,8PL092 165 9,4 167,0

APPLIANCE SET FOR G31 [GPL]



Pag. 33

HG0105 ET 007 IT** The loss refers to one meter of pipe. When you specify the code, indicate the length in cminstead of xxx.

Guidelines to Component Selection

The following table lists pressure drops of more commonlyused terminals and piping.If the terminal is not directly connected to the heater and adistance is to be covered, check that diameters of terminals,extensions and bends are correct.After defining the layout of the venting system, use the followingtable to check pressure drop of each component according tothe relevant PLUS heater. This value changes according to fluegas flow rate.Sum pressure drops of different components and make surethe result does not exceed available value for the heater to use.If an air intake pipe is used, sum its pressure drop to that of flueoutlet.If the result is higher, try using pipes with larger diameter andcheck again the sum. A pressure drop higher than the pressureavailable on venting system would reduce heat output of the

heater.Note: The figures in the following pages show examples ofventing and air intake piping built using standard kits. The tablebelow shows maximum lengths of layouts that can be builtbetween the unit and the terminal. If elbows are included in thelayout, the equivalent length of each elbow must be deductedfrom the available length.Elbow Ø 80 90° EL 1.7 mElbow Ø 80 45° EL 0.8 mElbow Ø 100 90° EL 1.9 mElbow Ø 100 45° EL 0.9 m*Equivalent length for wide radius elbows.

Heater models PL015 PL024 PL032 PL035 PL043 PL054 PL072 PL092Available pressure at exhaust 50 50 90 90 110 120 120 120 [Pa]

Component CodeC13 horizontal separate terminal 80/80 2,9 4,5 6,2 7,3 10,1 13,9 23,1 37 TC13-08-HS3Separate C13 terminal Ø 80 hor. + adapt.Ø100 3,3 5,7 8,2 9,7 13,7 19,3 32,9 53,2 TC13-08-HS3MSeparate C13 terminal 100/100 horizontal 2,4 2,9 3,4 3,8 4,5 5,9 8,4 12,8 TC13-10-HS3Concentric C13 terminal 80/80 horizontal 5,5 14 23 28 42 62 111 - TC13-08-HC3Concentric C13 terminal 100/100 horizontal 2 5,5 10 13 21,8 34,5 70,3 - TC13-10-HC3Concentric C13 terminal 100/100 horizontal (small size) 2,4 6,7 12 15,4 25,4 39,9 80,1 - TC13-10-HC3RConcentric C13 terminal 130/130 horizontal 1 2 2,8 3,5 4,9 7 11,9 18,6 TC13-13-HC3Concentric C13 terminal 130/130 horizontal (small size) 1,2 2,6 4 4,9 7,1 10,2 17,7 28,2 TC13-13-HC3RVertical concentric C33 terminal Ø80/80 5,5 14 23 28 42 62 111 - TC33-08-VC1Vertical concentric C33 terminal Ø100/100 2 5,5 10 13 21,8 34,5 70,3 - TC33-10-VC3Vertical concentric C33 terminal Ø100/100 (small size) 2,4 6,7 12 15,4 25,4 39,9 80,1 - TC33-10-VC3RVertical concentric C33 terminal Ø130/130 1 2 2,8 3,5 4,9 7 11,9 18,6 TC33-13-VC3Vertical concentric C33 terminal Ø130/130 (small size) 1,2 2,6 4 4,9 7,1 10,2 17,7 28,2 TC33-13-VC3RB23 terminal Ø80 horizontal 1,5 2,4 3,4 4 5,6 7,8 13,1 21 TB23-08-HS0Intake only Ø80 horizontal 1,4 2,1 2,8 3,3 4,5 6,1 10 16 TC00-08-HS0B23 terminal Ø100 horizontal 1,2 1,5 1,8 2 2,4 3,2 4,7 7,2 TB23-10-HS0Intake only Ø100 horizontal 1,2 1,4 1,6 1,8 2,1 2,7 3,7 5,6 TC00-10-HS0B23 terminal Ø80 vertical 3,4 5,8 8,6 10,1 14,2 20,1 35,2 56,3 TB23-08-VS0B23 terminal Ø100 vertical 2,5 3,4 4,3 4,9 6,2 8,4 14 21,4 TB23-10-VS0Pipe Ø80 ** 0,5/m 1,4/m 2,4/m 3/m 4,6/m 6,8/m 12,3/m 20,2/m G15820-08-xxxPipe Ø100 ** 0,2/m 0,5/m 0,8/m 1/m 1,4/m 2,2/m 3,9/m 6,4/m G15820-10-xxx90° wide bend Ø80 0,9 2,4 4,1 5,1 7,6 11,3 20,4 33,6 G15810-08-9045° wide bend Ø80 0,5 1,2 2 2,5 3,8 5,7 10,2 16,8 G15810-08-4590° wide bend Ø100 0,3 0,9 1,5 1,9 2,8 4,2 7,6 12,5 G15810-10-9045° wide bend Ø100 0,2 0,4 0,7 0,9 1,3 2 3,6 5,8 G15810-10-45Adapter Ø80 - 80/100 0,2 0,6 1 1,2 1,8 2,7 4,9 8,1 G15815-08-10Adapter Ø80 - 100/80 0,2 0,6 1 1,2 1,8 2,7 4,9 8,1 G15815-10-08Adapter Ø100/130 0,1 0,3 0,6 0,7 1,1 1,6 2,9 4,8 G15815-10-13Adapter Ø130/100 0,1 0,3 0,5 0,6 0,9 1,3 2,4 4 G15815-13-10Condensation Drain Ø80 hor. & ver. 0,8 0,8 0,8 0,8 0,8 0,8 1 1 G15825-08-HVCondensation Drain Ø100 hor. & ver. 0,8 0,8 0,8 0,8 0,8 0,8 1 1 G15825-10-HVChimney Top Ø80 2 2 2 2 2 2 2,5 2,5 G15830-08-VChimney Top Ø100 1,5 1,5 1,5 1,5 1,5 1,5 2 2 G15830-10-VChimney Top Ø130 1 1 1 1 1 1 1,5 1,5 G15830-13-VGrid Ø80 1 1 1 1 1 1 - - C04787Grid Ø100 - - - - - - 0,8 0,8 G14513

Perdita di carico [Pa]



Pag. 34

HG0103 ET 008 ITTerminal includes:-Straight pipe L=900mm with grid-Outer and inner wall plates-Fastening accessories

B23 TYPE horizontalHG0103 C2,011

HG0103 ET 009 ITTerminal includes:-Rain protection-Male/female extension L=1000mm-Elbow 90°

B23 TYPE vertical

L1

1514

2928

L1

1210

2928

HG0103 C2,010

Terminal Ø80 TB23-08-HS0

Terminal Ø100 TB23-10-HS0

Pipes & bends Ø80 Pipes & bends Ø100ModelPL015 30PL024 30PL032 29PL035 26PL043 22PL054 17PL072 9** 20PL092 5** 15

metri

Max L1 of layout, terminal not included

** Use M/F adapters 100/80

Terminal Ø80 TB23-08-VS0

Terminal Ø100 TB23-10-VS0

Pipes & bends Ø80 Pipes & bends Ø100ModelPL015 29PL024 29PL032 26PL035 24PL043 20PL054 15PL072 7** 18PL092 3** 13

meters

Max L1 of layout, terminal not included

** Use M/F adapters 100/80

6.4 Terminal Layout

B23 TYPEOpen combustion circuit, combustion air intake from indoor,venting outdoor (suitable openings in the walls must beprovided, complying with relevant national regulations).REMARK: This layout requires an IP20 protection grid to beinstalled. The grid [locations 28 and 29] must have a minimumpitch of 8 mm and must prevent the inlet of any object with adiameter greater than 12 mm into air intake.



Pag. 35

C13 TYPE independent horizontal

C13 TYPE, Combustion circuit sealed from the room. Pipes go outdoor through the wall.

Terminals include:• TC13-08-HS3 -Intake and flue straight pipes Ø80/80 with

grid-Outer and inner wall plates-Fastening accessories

• TC13-08-HS3M -Intake and flue straight pipes Ø80/80 withgrid

-N.2 Ø100/80 male/female reductions-Outer and inner wall plates-Fastening accessories

• TC13-10-HS3 Intake and exhaust straight pipes Ø100/100with grid-Outer and inner wall plates-Fastening accessories

HG0103 ET 010 IT

Terminals include:• TC13-08-HC3 -Outer and inner wall plates,

Ø80/80 fittings for the back• TC13-10-HC3 -Outer and inner wall plates,

Ø100/100 fittings for the back• TC13-13-HC3R -Outer and inner wall plates,

Ø130/130 fittings for the back-N.2 Ø100/130 male/female reductions

C13 TYPE coaxial horizontal L1

L2

** using Ø80/100 male/female adapters and Ø100 pipes

654

HG0103 C2,013

HG0103 ET 011 IT

80/80->Ø125100/100->Ø150130/130->Ø200

Term. Ø80/80 TC13-08-HS3

Term. Ø80/80 TC13-08-HS3M

Term. Ø100/100 TC13-10-HS3

Pipes & bends Ø80 Pipes & bends Ø80 Pipes & bends Ø100ModelPL015 15 + 15PL024 14 + 14PL032 14 + 14PL035 12,5 + 12,5PL043 10 + 10PL054 8 + 8PL072 4 + 4 9,5 + 9,5PL092 2 + 2 7 + 7

meters

Max L1+ L2 of layout termina l not included

Available equivalent length has been evenly div ided betw een intake and f lue. The tw o lengths can also be dif ferent, provided that their sum does not exceed the value show n in the table.

Term. Ø80/80 TC13-08-HC3

Term. Ø100/100 TC13-10-HC3

Term. Ø130/130 TC13-13-HC3R

Pipes & bends Ø80 Pipes & bends Ø100 Pipes & bendsØ100ModelPL015 10 + 10PL024 10 + 10PL032 10 + 10PL035 9 + 9PL043 7 + 7 9 + 9**PL054 4,5 + 4,5 10 + 10**PL072 4 + 4 9,5 + 9,5PL092 7 + 7

meters

Max L1+L2 of layout, terminal not included

Available equivalent length has been evenly divided betw een intake and f lue. The tw o lengths can also be dif ferent, provided that their sum does not exceed the value show n in the table.

1

32

HG0103 C2 012 L1

L2

160

500

500

3

203



Pag. 36

** using Ø100/80 male/female adapters** using Ø80/100 male/female adapters

L2

L1

Terminals include:• TB23-08-VS0 -Rain protection Ø80

-Extension Ø80 L=1000mm-elbow Ø80 90°

• TC00-08-HS0 -Intake terminal Ø80 with grid-Outer and inner wall plates-Fastening accessories

• TB23-10-VS0 -Rain protection Ø100-Extension Ø100 L=1000mm-elbow Ø100 90°

• TC00-10-HS0 -Intake terminal Ø100 with grid-Outer and inner wall plates-Fastening accessories

1514

1311

HG0103 ET 013 IT

HG0103 C2,015

C53 TYPE Sealed combustion circuit from the room. Pipe systems are connected one to the roof and the other to the wall.

Intake Ø80 TB23-08-VS0 Flue Ø80 TC00-08-HS0

Flue Ø100 TB23-10-VS0 Ripresa Ø100 TC00-10-HS0

Pipes & bends Ø80 Pipes & bends Ø100ModelPL015 14 + 14PL024 13 + 13PL032 13 + 13PL035 11,5 + 11,5PL043 9 + 9PL054 7 + 7 12,5 + 12,5***PL072 3 + 3** 8,5 + 8,5PL092 1 + 1** 6 + 6

meters

Max L1+ L2 of layout terminal not included

Available equivalent length has been evenly divided betw een intake and f lue. The tw o lengths can also be dif ferent, prov ided that their sum does not exceed the value show n in the table.



Pag. 37

HG

0107

.08_

C2_

009

IT_e

d.06

09

L2L1

** using Ø80/100 male/female adapters (order separately)Terminals include:• TC33-08-VC1 - Complete terminal, Ø 80/80 fittings - Centre distance 120• TC33-10-VC2 - Complete terminal, Ø 100/100 fittings - Centre distance 140• TC33-10-VC3R -Complete terminal, Ø130/130 fittings - Centre distance

140-N.2 Ø100/130 male/female reductions

987

This layout requires that fittings be moved from the back to the topof the heater. For more details, see instructions below.HG0103 C2,016

HG0103 ET 014 IT

To disassemble:1) Cut “A” covers from upper panel2) Pull “C” flue pipe3) Disassemble the intake joint “D”4) Disassemble the flue joint “B”5) Remove internal covers “E” installed one on burner

casing and the other over flue hood

How to assemble:1) Install one “E” cover (and its seal) on the side hole of

the exchanger.2) Install “B” flue junction on upper hole of the exchanger3) Insert intake junction “D” on burner compartment4) Cut to length “C” pipe and install it on “D” air junction

reaching same height as flue outlet5) Install pre-cut covers “A” and their seals on the hole for

air intake6) Install “E” cover without seal on back hole of the flue

Disassembling

Assembling

C33 TYPE (ROOF)Combustion circuit is sealed from the room. Piping is connected outdoor using one concentric terminal.

80/80->Ø125100/100->Ø150130/130->Ø200

Term. Ø80/80 TC33-08-VC1

Term. Ø100/100 TC33-10-VC2

Term. Ø130/130 TC33-13-VC2R

Tubi e curve Ø80 Tubi e curve Ø100 Tubi e curve Ø100ModelloPL015 11 + 11PL024 11 + 11PL032 10 + 10PL035 9 + 9PL043 7 + 7PL054 4,5 + 4,5 10 + 10**PL072 4 + 4 9,5 + 9,5PL092 7 + 7

metri

Max L1+ L2 of layout terminal not included

Available equivalent length has been evenly divided betw een intake and f lue. The tw o lengths can also be dif ferent, provided that their sum does not exceed the value show n in the table.

D

B

A

C

E



Pag. 38

HG

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010

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d.06

09

6.5 Electrical Wiring

Power SupplyThe heater shall be properly wired to an efficient grounding system,complying with existing regulations.Single-phase 230 Vac supply with neutral. Do not mistake neutral andphase wiresor the flame control device will lock the unit for safety reasons (F1 fault).The heater can be plugged into mains using a plug-socket only if the latterprevents any mistake between phase and neutral wires.The system wire gauge in general, and cable section in particular, mustsuit the unit rated input (see technical data table).Keep cables far from heat sources.REMARK: A multipolar cutout switch must be installed before the PLUSheater with suitable electric safety.Phase, ground and neutral wire section must be 1.5 mm² at least

Plug - socket

CPU-PLUS card wiring - room thermostat

The heater must necessarily be wired to a thermostat, ascheduler, a chronothermostat, or a switch for the user tomanage turning on and off the unit.On the contrary, the user/the installer can choose to remotelycontrol reset button and summer/winter switch only if theyprefer to.The wiring scheme in this page shows how to connect theremote control to the M1 board installed in burnercompartment.

HG

0107

.08_

C2_

011

IT_e

d.06

09

Chronothermostat-Heater WiringRemove the resistance from two-pole connector [CN8] ofelectronic card and wire the relevant bipolar connector ofthe chronothermostat (see figure in this page).It is mandatory to close 7-9 contacts on M1 terminal boardinside burner compartment (see wiring diagram).

REMARK: Move CR switch to ON (see figure on page 45)REMARK: Do not use a multipole cable including a wire forpower supply and one for chronothermostat control. Thiswould interfere with control signals, jeopardizing heateroperation.

HG0103 C2,021 YES

Powerconnectionwiring cable

PowerVoltageNO!

CN8 connector

C P U - P L U Sm o d u l a t i o nelectronic card

wiring cable



Pag. 39

Button - SwitchSUMMER/0/WINTER

Reset Button

6.6 How to Connect an External Gas Valve

HG

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.08_

C2_

012

IT_e

d.06

09

Summer Ventilation

In order to activate fans only (summer ventilation withoutheating), the following command schemes are available:

1) With chronothermostat - see page 20 point 4.72) With remote control - see page 15 point 4.23) With on-board switch: turn switch on the positionrequired.To turn off the fans, turn the switch on winter.REMARK: Before stopping fans, the heater executespost-ventilation.

Connections:1) Remove jumper between terminals 5, 7, and 9 of flamecontrol device connector, leaving wires long.2) Use the terminal to reconnect jumper wires addinganother wire that will be connected to the relay coil [230 Vac].3) Wire the neutral to the relay bobbin and to the gas valve.

Legend:L LineN NeutralR Relay coilVGE External Gas Valve

VGE

R

N

NO

L

N

Flame control device

NC

C

How to Connect an External Gas Valve

HG0103 C2,022

4) Wire the line cable to the common terminal on the relay5) Wire the NO (normally open) contact to the gas valve.

External Gas Valve

For equipment burning LPG, laws in someEuropean countries require that a gas valve beinstalled outside the room where the appliance islocated.This valve must open and close exactly when theequipment starts up and turns off.The diagram below shows how to wire the gasvalve control.The installation of a relay is recommended sincethe outlet of the flame control device has a limitedvoltage.



Pag. 40

Included in PLUS module supply

1 2 3 4 5 6 7 8

HG0103 C2,016

To be installed by theinstaller

6.7 Gas connection

For this system, use CE-approved and certified componentsonly.

PLUS heaters are supplied witha double gas valveand a gas filter and stabiliser already installed.All components are assembled into the burner compartment.To complete installation in compliance with the law, the in-staller shall install the following components:

- Vibration damping joint- Gas cock

We recommend installing a gas filter with a high flow rate andno pressure stabiliser. In fact, the standard filter installed be-fore the gas valve has a limited surface.

To assure proper maintenance, use a gasket and a swiveljoint to connect the heater.

Do not directly use threaded joints on gas fitting.

The law allows a maximum pressure of 40 mbar inside thebuilding or thermal plant. Higher pressure values shall bereduced before the room where the heater is installed.

LEGEND1 Main burner gas solenoid valve2 Pilot burner gas solenoid valve valve3 Pressure stabiliser4 Safety solenoid valve5 Gas filter (small section)6 Vibration damping joint7 Gas filter (large section)8 Gas cock

Remote Control - Heater WiringRemove two-pole switch and its resistance from CN8 con-tact on the electronic card. Connect 6-pole connector ofApen remote control to the connector on CN7 card (seefigure aside).It is mandatory to close 7-9 contacts on M1 terminal boardinside burner compartment (see wiring diagram).

REMARK: Keep CR switch on OFF (see figure on page 44)

REMARK: In order to enable NTC2 sensor, set A12 param-eter on 1.

REMARK: In this case, too, it is forbidden to use a multiwirecable to convey both electrical power and remote control.(See note on page 33)

CN7 connector

C P U - P L U Sm o d u l a t i o nelectronic card

Apen remote control

use these terminals towire a timer and removeexisting jumper

6.8 Wiring the Remote Control to CPU-PLUS Card



Pag. 41

The code shows the factory setting for the unit:

Codes without extension:- PL043IT no extension means that the unit has been prepared and tested for natural gas[G20]

Codes with extension: the fourth letter identifies the gas for which the unit has been set:- PL043FR-xxx0 0 indicates the unit has been set and tested for natural gas [G20]- PL043MT-xxx1 1 indicates the unit has been set and tested for Liquid Propane [G31]- PL043NL-xxx2 2 indicates the unit has been set and tested for natural gas [G25]- PL043HU-xxx3 3 indicates the unit has been set and tested for natural gas [G25.1]- PL043PL-xxx4 4 indicates the unit has been set and tested for [GZ350] gas

Another label on the unit, placed near fuel supply, clearly states which gas type and supply pressure the unit has been set andtested for.

7. ASSISTANCE BY SERVICE CENTRE

First start-up must be performed by an APEN GROUP Authorised Service Centre.During first start up, the combustion efficiency must be analysed.This appliance is certified for EC and Extra-EC countries for the gas categories listed below.

On the packaging of each heater the following information are clearly marked: destination Country, gas category, and appliancecode translated into the language of destination Country.

Country Category Gas Pressure Gas PressureAT II2H3B/P G20 20 mbar G30/G31 50 mbarBE <70kW I2E(S)B,I3P G20/G25 20/25 mbar G31 37 mbarBE >70kW I2E(R)B,I3P G20/G25 20/25 mbar G31 37 mbarCH II2H3B/P G20 20 mbar G30/G31 50 mbarDE II2ELL3B/P G20/G25 20 mbar G30/G31 50 mbarDK, FI, GR,SE II2H3B/P G20 20 mbar G30/G31 30 mbarES, GB, IE, PT II2H3P G20 20 mbar G31 37 mbarIT II2H3B/P G20 20 mbar G30/G31 30 mbarFR II2Esi3P G20/G25 20/25 mbar G31 37 mbarLU II2E3P G20/G25 20 mbar G31 37/50 mbarNL II2L3B/P G25 25 mbar G30/G31 30 mbarNO, HR II2H3B/P G20 20 mbar G30/G31 30 mbarHU II2HS3B/P G20/G25.1 25 mbar G30/G31 30 mbarCZ II2H3B/P G20 20 mbar G30/G31 30 mbarCY, MT I3B/P G30/G31 30 mbarEE, LT, LV II2H3B/P G20 20 mbar G30/G31 30 mbarIS I3P G31 37 mbarSK II2H3B/P G20 20 mbar G30/G31 30 mbarSI II2H3B/P G20 20 mbar G30/G31 30 mbarBG, RO, TR II2H3B/P G20 20 mbar G30/G31 30 mbarPL II2ELwLs3B/P G20/G27/G2.350 20/13 mbar G30/G31 37 mbar

HG

0103

ET0

14 I

T_ed

.050

7

7.1 Country Table - Gas Category



Pag. 42

HG

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ET

006

IT

7.2 Gas Setting Data Table

H EA T ER M OD EL P L015 P L024 P L032 P L035 P L043 P L054 P L072 P L092C A T EGOR Y F EED IN G P R ESSUR E [mbar]Ø P ILOT N OZ Z LE [mm]C A R B ON D IOXID E C O2 [%]GA S C ON SUM P T ION (15°C -1013mbar) [m3/h] 1,32 - 1,74 2,11 - 2,80 2,53 - 3,68 2,69 - 4,10 3,65 - 5,02 4,23 - 6,13 6,13 - 8,25 7,93 - 10,58* Feeding pressure for Hungary is 25 mbar.

H EA T ER M OD EL P L015 P L024 P L032 P L035 P L043 P L054 P L072 P L092C A T EGOR Y F EED IN G P R ESSUR E [mbar]Ø P ILOT N OZ Z LE [mm]C A R B ON D IOXID E C O2 [%]GA S C ON SUM P T ION (15°C -1013mbar) [m3/h] 1,53 - 2,02 2,46 - 3,25 2,95 - 4,28 3,13 - 4,77 4,24 - 5,84 4,92 - 7,13 7,13 - 9,59 9,22 - 12,3* Feeding pressure fo r Germany is 20 mbar.** 0.65 pilo t nozzle fo r Countries with category "L" or "LL" (Germany and The Netherlands); 0.60 fo r o ther Countries with category "E" .

H EA T ER M OD EL P L015 P L024 P L032 P L035 P L043 P L054 P L072 P L092C A T EGOR Y F EED IN G P R ESSUR E [mbar]Ø P ILOT N OZ Z LE [mm]C A R B ON D IOXID E C O2 [%]GA S C ON SUM P T ION (15°C -1013mbar) [Kg/h] 1,03-1,36 1,65-2,19 1,99-2,88 2,11-2,50 2,86-3,94 3,31-4,81 4,81-6,67 6,22-8,29

H EA T ER M OD EL P L015 P L024 P L032 P L035 P L043 P L054 P L072 P L092C A T EGOR Y F EED IN G P R ESSUR E [mbar]Ø P ILOT N OZ Z LE [mm]C A R B ON D IOXID E C O2 [%]GA S C ON SUM P T ION (15°C -1013mbar) [Kg/h] 1,02-1,34 1,63-2,16 1,96-2,84 1,08-3,17 2,82-3,88 3,27-4,74 4,74-6,37 6,13-8,17

H EA T ER M OD EL P L015 P L024 P L032 P L035 P L043 P L054 P L072 P L092C A T EGOR Y F EED IN G P R ESSUR E [mbar]Ø P ILOT N OZ Z LE [mm]C A R B ON D IOXID E C O2 [%]GA S C ON SUM P T ION (15°C -1013mbar) [m3/h] 1,53 - 2,02 2,45 - 3,25 2,95 - 4,28 3,13 - 4,76 4,24 - 5,84 4,91 - 7,12 7,12 - 9,58 9,21 - 12,28* For Hungary only

H EA T ER M OD EL P L015 P L024 P L032 P L035 P L043 P L054 P L072C A T EGOR Y F EED IN G P R ESSUR E [mbar]Ø P ILOT N OZ Z LE [mm]C A R B ON D IOXID E C O2 [%]GA S C ON SUM P T ION (15°C -1013mbar) [m3/h] 1,85 - 2,44 2,96 - 3,92 3,55 - 5,15 3,77 - 5,74 5,11 - 7,04 5,93 - 8,00 ** 8,59 - 10,55 *°* For Poland only** For PL054 model minimum heat input is 40 KW, while maximum heat input is 54 KW. *° For PL072 model minimum heat input is 50 KW, while maximum heat input is 69 KW.

13

8,7 ±0,2

8,7 ±0,2 [cat. H] - 8,9 ±0,2 [cat. E]

In funzione del Paese di destinazione - vedi tabella 7.1

25 [min 20 - max 30] *0,65 **

0,70

T YP E OF GA S G2.350 *

9 ,5 ±0,2 0,65

9,6 ±0,2


T YP E OF GA S G25.1 *

30 [min 25 - max 35] - 37 [min 25 - max 45] - 50 [min 42,5 - max 57,5]0,51

9,4 ±0,2

T YP E OF GA S G25


25 [min 20 - max 30]


T YP E OF GA S G30

8,7 ±0,2


30 [min 25 - max 35] - 50 [min 42,5 - max 57,5]

T YP E OF GA S G31

0,51

T YP E OF GA S G20


20 [min 17 - max 25] *0,60



Pag. 43

7.3 First Start Up

Basic unit (without chronothermostat)At delivery, the heater is set and tested for using the type of gasas noted on the rating plate. Before starting the heater, gothrough the following checklist:• Make sure the available gas matches the type the heater isset for.• Using “IN” tapping point on the gas valve, verify that the inletpressure to the valve matches the value required for the typeof gas used.• Check that electrical wiring complies with requirementsshown in this manual or in other diagrams attached to theheater.• Wire a thermostat, a scheduler, a chronothermostat or aswitch to 7-9 connectors of M1 board, thereby closing theoperative circuit.When you plug in the heater, the 7-9 contact closes, the heaterlaunches start-up cycle following the procedure described inparagraph “Working Cycle”REMARK: Keep the on-board switch on winter position.At this stage, the pilot burner is not likely to start because of airin gas pipes and the heater locks up.Launching start-up cycle automatically unlocks the heater.Keep repeating this operation until the heater lights up.

Unit with Chronothermostat• Bypass 7-9 contact of M1 terminal board.• Wire the chronothermostat (see page 33).• Enter all settings when chronothermostat LCD lights up (seepage 17)To turn the heater on, do the following:1. Switch the chronothermostat to MANUAL operation mode2. Check that tap icon is displayed on chronothermostat LCD(running status).3. Set heat threshold value higher than the temperaturemeasured by room thermostat.A flame appearing on the LCD indicates that the burner hasfired.

Working with Apen Remote ControlIn addition to the steps required for basic unit, do the following:• Bypass 7-9 contact of M1 terminal board.

• Wire the remote control (see page 35).• Enter all settings when remote control LCD lights up (seepage 22)

To turn the heater on, do the following:1. Press ON-OFF button on remote control;2. Check that the green LED on the remote control is on. Ifheating is required, the red LED should light up, too.3. If red LED does not light, the temperature set for ST2 couldbe lower than measured temperature. Use remote control toset the temperature to 30°C.When the red light turns on, the heater launches the start-upcycle.

H EA T ER M OD EL P L015 P L024 P L032 P L035 P L043 P L054 P L072 P L092C A T EGOR Y F EED IN G P R ESSUR E [mbar]Ø P ILOT N OZ Z LE [mm]C A R B ON D IOXID E C O2 [%]GA S C ON SUM P T ION (15°C -1013m bar) [m3/h] 1,61 - 2,13 2,58 - 3,42 3,10 - 4,49 3,29 - 5,01 4,45 - 6,13 5,16 - 7,49 7,49 - 10,07 9,68 - 11,88 *** For Poland only** Per il modello PL092 la portata termica minima è di 75,0 KW, mentre la portata termica massima è di 92 KW.

8,6 ±0,2

T YP E OF GA S G27 *

In funzione del Paese di destinazione - vedi tabella 7.120 [min 18 - max 25]

0,65



Pag. 44

CALIBRATEDVENTURI

CO2 REGULATION

GAS INLET TAPPINGPOINT (IN)

OFFSETSETTING

GAS TAPPING POINTTO THE BURNER (OUT)

HG

0103

IM 0

03

7.4 Combustion Analysis

“CHIMNEY SWEEP” BUTTON- Start the burner, wait for the fan to start, then press for 2/3seconds the reset button at the back of the heater to take theburner to maximum output. When maximum output is reached,the green LED on the front of the heater flashes once. Checkthat the inlet pressure to the valve matches the one required bythe gas type. If it doesn’t, adjust it.Wait a couple of minutes, then connect a flue gas contentanalyser to the chimney and check CO2 value, comparing it tothe one listed in the Gas Setting Data (point 7.2) table referredto the kind of fuel used.- If this value is not included in the required range, regulate CO2value by adjusting the screw on the Venturi: turn it clockwise todecrease gas flow (thereby decreasing also CO2 value), andcounter clockwise to increase it.Press the reset button again for 2/3 seconds to run the burnerat minimum output. The green LED flashes twice to indicateminimum output.- Wait until the heater reaches minimum output and make sureCO2 value is the same or slightly lower than CO2 value measuredat maximum output (up to -0.3%). If it doesn’t, regulate offsetscrew.To change values, remove the metal cap and turn the screw:unscrew to decrease CO2 value and screw to increase. If offsetsetting is changed, CO2 value at maximum capacity must bechecked again by repeating above steps.When you are done, restore standard heater operation bypressing reset button again for 2/3 seconds. The green LEDsteady on indicates standard operation.After first start up, train the user on how to use the heater andits controls.

REMARK: If standard working mode is not restored, thecontrol card restores it automatically after 20 minutes. Thesame happens if the heater is powered off and then on.



Pag. 45

Diaphragm installationmodel 072

HG0106 C2,028

Assembling diaphragm formodels 015-024-032-035-043-054 HG0106 C2,027

MODELLO PL015 PL024 PL032 PL035 PL043 PL054 PL072 PL092Ø UGELLO PILOTA mmDIAFRAMMA GAS Ø mm 4,5 5,0 5,1 5,1 6,0 6,5 6,5 8,1

TIPO DI GAS G30 - G31

0,51

HG

0107

.08_

C2_

014

IT_e

d.06

09

REMARK: The heater supplied for using LPG is adjusted forG31 gas. In order to use G30, the CO2 value must be checkedand adjusted according to table 7.2, if necessary.Kit for Liquid Propane includes

7.5 Converting the Heater to use LPG

This conversion is strictly forbidden in Countries such asBelgium, where double category for gas is not allowed.This Kit is not supplied in Countries where conversion is notallowed.The conversion to another type of gas shall be carried outexclusively by an APEN GROUP certified Service Centre.The heater is supplied to use natural gas. The kit for convertingit into Liquid Propane is supplied as a standard and includes:- One calibrated diaphragm- One pilot flame nozzle- One sticker “Appliance converted to..”Once the conversion and the setting have been made, replacethe label “Appliance set for Natural Gas” with the one “Applianceconverted to…”, enclosed in the kit.

To convert the heater, do the following:- Disconnect the unit from power supply- Replace the pilot nozzle- Insert the supplied calibrated diaphragm between the gasvalve and the Venturi- Power the heater on and make it ready for start up- While the starting electrode sparkles, check that the connectionbetween pilot nozzle and copper tube does not leakWhen the burner is on and runs at maximum output check that:1) The inlet pressure to the valve matches the one required forthe gas used2) The CO2 value does not exceed the values correspondingto the used gas.Should the value be different, change it by turning the regulationscrew: screw to decrease the value and unscrew to increaseit.Check again that gas circuit does not leak.

Diaphragm installation092 model

PL092 model mounts an aluminium unit to adjust theappliance.In case a conversion to LPG is required, install thediaphragm into its slot in the aluminium unit, betweenthe valve and the unit itself.



Pag. 46

HG

0107

.08_

C2_

015

IT_e

d.06

09

Air Diaphragm G2.350for PL043 - Øi 28for PL054 - Øi 28for PL072 - Øi 29

Conversion from G20 into G25 is only allowed for Countries inCat. 2ELL [Germany] and in Cat. 2HS [Hungary].In Countries in Cat. “2L” [Holland], the unit is supplied set andtested for G25.For Cat. 2E Countries [France, Belgium and Luxembourg]where conversion from G20 to G25 is not allowed the applianceis supplied already set to use both G20 and G25 gases.Therefore, conversion is not needed.The conversion to another type of gas shall be carried outexclusively by an APEN GROUP certified Service Centre.Conversion to G25 and/or G25.1 gases, where possible,requires:- (any models) replacement of pilot nozzle.

After completing the conversion, turn the burner on and:- Check that the inlet pressure to the gas valve matches the onerequired for the available gas [see table 7.2]. - Check that CO2value at max and min heat input does not exceed the acceptedrange for gas type. If it does, change it by turning the Venturiadjustment screw: turn it clockwise to decrease the value andcounter clockwise to increase it.Stick the label “Appliance converted into G25 gas” over theprevious label “Appliance set for ... “.Note: Pay attention to CO2 value for G25.1 gas. With this gas,minimum and maximum thermal output values of PL092model are lower then when G20 is used.

7.7 Conversion to G2.350 Gas

Conversion is allowed only for Poland.The conversion to another type of gas shall be carried outexclusively by an APEN GROUP certified Service Centre.Conversion to G2.350 requires:- (any models) replacement of pilot nozzle.- Only for PL043, 054, and 072: mounting a calibrated diaphragmon air intake of Venturi [see drawing]After completing the conversion, turn the burner on and:- Check that the inlet pressure to the gas valve matches the onerequired for the available gas [see table 7.2].- Check that CO2 value at max and min heat input does notexceed the accepted range for gas type. If it does, change it byturning the Venturi adjustment screw: turn it clockwise todecrease the value and counter clockwise to increase it.Stick the label “Appliance converted into G2,350 gas” over theprevious label “Appliance set for ... “.Remark: Minimum and maximum thermal output values ofPL054 and PL072 models are lower than when G20 is used.PL092 model is not suitable for G2.350 gas.

7.6 Conversion to G25 - G25.1 Gas



Pag. 47

Make sure the start upelectrode releases onouter edge of pilotburner.

Keep detectionelectrode tangent topilot burner head.

HG

0106

C2,

018

7.8 Maintenance

To keep the unit perfectly efficient and guarantee its durability,we recommend to go through the following checklist at leastonce a year before restarting the heater:1) Check start-up, flame detection and pilot flame electrodes2) Check flue and air intake terminals and ducts3) Check the Venturi4) Check the exchanger is clean (every 3/4 years)5) Check the inlet pressure of the gas valve6) Check the operation of flame control device and air pressureswitch7) Check the safety thermostat/s8) Check ionisation current

Note: checks in steps 1, 2, 3, and 4 must be carried out afterpower and gas supplies have been cut off.Checks in steps 5, 6, 7, and 8 must be carried out while theheater is running.1) ElectrodesRemove the pilot burner assembly and clean the steel grid andthe nozzle with a compressed air jet. Check the integrity of the

ceramic and use emery paper to remove any oxidation on metalparts of the electrodes. Verify that electrodes are correctlypositioned (see picture in this page). The detection electrodemust be installed tangent to burner head, not into it. The start-up electrode must release on the outer edge of pilot burner ata suitable distance from detection electrode.

2) Flue and Air Inlet SystemsCheck duct status looking into them or using suitable tools.Remove dust from air intake terminal.

3) The VenturiIf necessary, use a brush to remove dust on the Venturi inlet,taking care not to let it drop inside.

4) Check and clean the exchanger (every 3/4 years)Optimal combustion efficiency in PLUS heaters preventsresidual combustion products. However, in time, some dirtcould settle inside exchanger pipes, due to the fine dust drawnthrough the combustion air duct. It is not possible to schedulea precise timetable for cleaning the heat exchanger. A sensibledecrease in gas flow could indicate there is dirt inside the heatexchanger.

5) Inlet Gas PressureCheck that the inlet pressure to the valve corresponds to theone required for the available gas.This check is to be carried out while the heater is running atmaximum capacity.

6) Flame Control DeviceWhile the heater is running, close the gas tap and verify that theunit locks and that F1 failure is displayed. Reopen gas tap,reset, and wait for the heater to restart.

7) Safety thermostat/sRun this test while the heater is working.Heat the thermostat bulb using a hot air gun or a gas lighter andcheck that the F2 lock is displayed. Cool the bulb, then reset:this procedure must be carried out on each thermostatassembled on the unit.8) Ionisation CurrentCarry out this operation using a device capable of testing directcurrent microAmperes. Do the following:- Disconnect the unit from power supply.- Disconnect flame control device cable and connect it to thenegative pole of the tester.



Pag. 48

A

HG

0107

.08_

C2_

016

IT_e

d.06

09

- Use a wire to connect the positive pole of the tester and theflame control device of the unit.- Power on the device and wait for the burner to start up.- Check ionisation value.This value must not be lower than 2 micro Amperes. Lowervalues would indicate that the detection electrode is misplaced,oxidised or it is going to break down.

7.9 Cleaning the Exchanger

The following operations must be carried out while the unit iscold and disconnected from power supply and gas cock isclosed:• Open the heater door.• Disconnect gas pipe and power supply.• Unscrew self-threading “E” screws that fasten the exhausthood cover (A).• Use a suitable brush to clean pipes all along their length,pushing dirt towards the outlet to collect it.• Reinstall hood cover and make sure it is sealed.• When finished, reassemble the heater and check allcomponents are tightened.

7.10 Demolition

Should the unit be dismantled or demolished, please take careto:• Remove wires and cables;• Remove all plastic components.

Note: Any recovered material shall be treated and disposedof according to existing regulations and/or rules given insafety technical sheets accompanying chemical products.

DC Micro Ammeter

Detection electrode

Flame control device



Pag. 49

7.11 Replacing Modulation Card

REMARK: If no chronothermostat nor remote control isinstalled, contact Customer Service at Apen Group S.p.A.

When replacing the card, some checks have to be carried outand some parameters have to be set. Parameter setting ismandatory and depends on the operating mode you havechosen. A list of default values is included in the technicalpapers that accompany every heater.This list must be updated with any subsequent change so thatany replacement card can be correctly configured.* The following information refer only to PLUS modules. Forother equipment using the same modulation card, pleaserefer to relevant manual.

- Verifying hardware configuration of the cardControl with ChronothermostatYou need to build a NTC/VAN jumper on NTC and make sureVAN switch is OFF as shown in figure below [move it towardsthe inner edge of the card]. This setup is required to useadjustment input with NTC1 sensor.Using Apen Remote ControlYou need to build a NTC/VAN bridge on NTC and make sureCR switch is OFF as shown in figure below. This setup isrequired to use adjustment input with NTC1 feeler.

- Setting up parametersParameters whose setting is mandatory are: A1 and A2.They define the heater thermal output and are set to zero (0)on spare card.The following table shows values to be set according to heatertype.

Model A1 A2 A3PL015 44 58 83PL024 55 73 83PL032 57 83 70PL035 62 93 80PL043 64 86 75PL054 65 93 70

PL072 75 98 70 PL092 74 97 70

More parameters:To enable all available functions of the heater, a table inparagraph 7.15 (page 52) lists all CPU-PLUS cardparameters, their default value, setting range and meaning.

CR switch =ON

jumper on NTC

CR switch =OFF



Pag. 50

7.12 Replacing the Gas Valve and RegulatingCO2 Value and Offset

If you replace the gas valve, you need to regulate CO2 value andpossibly the offset value:- Start the burner, wait for the fan to start, then press for 2/3seconds the reset button at the back of the heater to take theburner to maximum output. When maximum output is reached,the green LED on the front of the heater flashes once. Wait acouple of minutes, then connect a flue gas content analyser tothe chimney and check CO2 value, comparing it to the one listedin the Gas Setting Data (point 7.2) table referred to the kind offuel used.- If this value is not included in the required range, regulate CO2value by adjusting the screw on the Venturi: turn it clockwise todecrease gas flow (thereby decreasing also CO2 value), andcounter clockwise to increase it.Press the reset button again for 2/3 seconds to run the burnerat minimum output. The green LED flashes twice to indicateminimum output.- Wait until the heater reaches minimum output and make sureCO2 value is the same or slightly lower than CO2 value measuredat maximum output (up to -0.3%). If it doesn’t, regulate offsetscrew.To change values, remove the metal cap and turn the screw:unscrew to decrease CO2 value and screw to increase. If offsetsetting is changed, CO2 value at maximum capacity must bechecked again by repeating above steps.When you are done, restore standard heater operation bypressing reset button again for 2/3 seconds. The green LEDsteady on indicates standard operation.REMARK: If standard working mode is not restored, thecontrol card restores it automatically after 20 minutes. Thesame happens if the heater is powered off and then on.

CO2 REGULATIONOFFSETSETTING

HG0103 IM



Pag. 51

7.13 How to set Chronothermostat Parameters

PARAMC parametersPress for 8-10 seconds KM key to access PARAMC parametersetting page.The LCD shows:


Press K4 >>. The LCD shows:LAN PAR PARC >>K1 K2 K3 K4

Press K3 (PARC) button. The LCD shows:<< PARAM C 1 >>K1 K2 K3 K4

The value of the parameter to set is displayed above K4 key withits forward sign. K3 indicates the number of the paragraph tobe changed [PARAMC].Use K1 (Previous) and K4 (Next) keys to navigate from first to21st parameter, then change PARAMC parameter valuesusing + and - arrows.Press KM key for about 8/10 seconds to exit setup menu. If nokey is pressed for about 20 seconds, the chronothermostatautomatically exits from change mode and restores operativemode.

“REG DHW” and “DELIVERY TMP” parameters“REG DHW” parameter is modulation set point of the NTC1sensor installed behind the heater. “DELIVERY TMP” is thevalue measured by the sensor.

“REG DHW” setting (sensor on intake)Press KM. The LCD shows:


Press K4 >>. The LCD shows:PRG SET CLK >>K1 K2 K3 K4

Press K2 SET key to open temperature setting page.Press K4 until the LCD shows the following:

<< REG DHW >>K1 K2 K3 K4

Set point is displayed over the arrows above K4. Use + and -keys to set required temperature value (18°C - 64°F, forinstance). The press KM key to go back to starting page.

How to read NTC1 sensor value [Parameter “DELIVERY TMP”]Press KM key to display the temperature detected by the sensoron the heater:


Press K3 (INFO), move forward using K4 (>>) until the displayshows:

<< DELIVERY T >>K1 K2 K3 K4

The value displayed over the arrows above K4 is the valuemeasured by NTC sensor behind the heater.

How to Read Output ValuePress KM to view the output percentage value the heater iscurrently delivering. The following string is displayed:


Press K3 (INFO), move forward using K4 (>>) until you display:

<< BURNER >>K1 K2 K3 K4

The value displayed is the output percentage.Reference values are: burner min 0% - max 100% values donot refer to PWM

Failure and Reset MessagesIf a failure occurs, a triangle starts flashing on the LCD and thefollowing string is displayed:

RESET BOILER >>K1 K2 K3 K4

Press K4 to view lock type (from 1 to 6). Then press KM to returnto boiler lock view (flashing triangle). Press K1 again to reset(the flashing triangle disappears).

7.14 How to set Remote Control Parameters

To access setup mode, do the following:- Power the unit on- Turn it off using ON/OFF switch (green light off).- Wait until red light, if on, stops flashing (end of the heatershutdown phase).- Press together PRG and SEL keys until “000” appears.- Use arrows to change flashing zero (0).- Press SEL key to confirm. The next digit will automaticallystart flashing.- Keep using arrow and SEL keys to change and confirmdigits to form correct password.- Press PRG. C0 will appear on the display.- Press SEL to select the required parameter, change its valueusing arrows and press SEL to confirm.- Press arrows to navigate through parameters.Press PRG to exit setup menu.Ask the manufacturer the password.



Pag. 52

7.15 Modulation Card ParametersThe table below reports all accepted values for parameters in CPU-PLUS card for each model of PLUS heaters PL series.Axx, Cxx, and STx values in first column are values displayed with APEN remote control code G15950 and/or withKondensa.net program. In the second column of the table, the TSP equivalent value is reported. TSP values are displayedwhen Oper Therm chronothermostat (code G14850) is installed.Greyed parameters are not significant for PLUS heater operation.

- TSP PL015 PL024 PL032 PL035 PL043 PL054 PL072 PL092A1 1 44 55 57 62 64 65 75 74A2 2 58 73 83 93 86 93 98 97A3 3 83 83 70 80 75 70 70 70A4 4A5 5A6A7 10 10 10 10 10 10 10 10A8A9

A10 90 90 90 90 90 90 90 90A11 6 25 25 25 25 25 25 25 25A12 17A13A14A15 20 0 0 0 0 0 0 0 0A16 18A17 7A18A19A20 30 30 30 30 30 30 30 30A21 30 30 30 30 30 30 30 30A22A23A24 19A25A26A27A28 8 50 50 50 50 50 50 50 50A29A30A31 21 2 2 2 2 2 2 2 2A32A33A34 9A35 10A36A37A38A39A40A 41A42A43 22A44 23A45A46 24

200

Flue temperature control enabling (0=No; 1=Yes)

Operating mode flue T° control ( 0=minimum modulation; 1=extinction)Delay for operation at min capacity w ith f lue control enablingDelay betw een burner fan and f lame control (sec)Antilock circulator operation enabling H20 (0=No; 1=Yes)

Summer function w ith chrono OT - Blow er enabled A35=1Ki value for PWM

Fault history reset [=1 reset]

Kp value for Pw mModulation speed enabled by supervisor A38=1Modulation speed enabled by supervisor f rom 0 to 100

Divider of HALL signal (feedback from burner fan rotation)Passw ord protection for set points (A32=1 passord enabled)OUT2 output delay on OUT1 (sec)ST1 minimum value (°C)

Dif ferential for burner start-up w ith 0-10 Vdc signal (Volt)OUT3 trigger value - as % of PWMHysteresis for OUT 3 - as % of PWMCorrection of room sensor value [ of f-set ]

Operation enabling if serial communication fails [ON w ith ST4]Compensation neutral area in °K - Differential on ST2Extinction limit value. Inlet Volts, burner w ith 0-10V signalHeating enabling burner compartment: 0=OFF; 1=ON

NOT VISIBLE - only for Apen controlDuration of error on FAN rev number [F3 fault ] (sec)% of error on FAN rev number (for control and/or F3 fault) Max timeout for serial command communication (for F7 fault) (minutes)

Burner fan maximum increase [0=5400 rpm, 1=6300 rpm]Compensation enabling - multiplier of A24No. of autoresets during start-up phase [F1]C7 hysteresis temperature [burner extinction] if C2=0

Flame stabilisation period - FAN speed =A3 (sec)NTC2 sensor setting A12=0 Not installed A12=1 InstalledFAN modulation value (% referred to PWM2) in Antif reeze (C8 =1)Max. capacity increase (No of PWM) every 5 seconds

Overlapping operation of pilot f lame & burner (sec)Duration of low er input signal - extinction (sec)Duration of higher input signal - start-up (sec) Furnace post-w ashing period (af ter flame extinction) (sec)

FAN start-up pow er value (% referred to PWM2)Value of integral factor (KI)Value of proportional factor (KP)Delay of OUT1 enabling

DESCRIPTION - FUNCTION

CPU-PLUS Card Parameters - Firmware version 3.05

FAN modulation minimum value (PWM1) FAN modulation maximum value (PWM2)

5101

2020

0705

2450

2,010

2,5

5-1,4

018010065450002000001 Autoreset F8: 0=NO - 1=YES



Pag. 53

TSP Any ModelsC0 2C1 11 1C2 1C3 12 60C4 13 120C5 14 0C6 120C7 75C8 15 0C9 0

TSP Any ModelsST1 REG SANIT 21ST2 18ST3 16 5ST4 16P1 2P2 0,5P3 5P4 1

HG0107 ET 013

Room compensation C1=0 OFF; C1=1 ONContinuous Modulation enabling with C2=1; C2=0 burner ON/OFF with ST1Fan start-up delay - ON (sec)

SET POINT

Fan turn-off delay - OFF (sec)C5=0 for wall-mounted PLs & PCs; C5=1 for AK boiler; Delay between turn-off & start-up (OFF Timer) (sec)Burner OFF temperature (referred to NTC1 )Antifreeze enabling C8=1 ON, C8=0 OFFConditioning enabling [summer autoventilation on ST2+P3] C9= OFF, C9=1 On

SERVICECPU-PLUS Card Parameters - Firmware version 3.05

DESCRIPTION - FUNCTIONOperative mode - C0=2 modulation on NTC; C0=5 modulation 0/10 VDc

DESCRIPTION - FUNCTIONModulation set point - Referred to NTC1

ST2 & ST3 set point hysteresisNeutral area for conditioning start-upHysteresis for conditioning start-up [2nd stage]

Room temperature set point - Referred to NTC2Antifreeze set point - Referred to NTC1 for boiler, to NTC2 for wall-mounted heatersON set point in case of communication failure ( A23=1) - Referred to NTC2ST1 set point hysteresis



Pag. 54

PLUS HEATER OPERATION

Is burner ON?

Is the system locked (red LED

on)?

Check failure type and take necessary

measures

YES

Is card powered (green LED on)?

CHECK:a) The unit is plugged inb) Fuses F1, F2, F3c) Transformer outlet 24V (CN13)

NO

Is required room

temperature reached?

YES

Is burner running at MAX input?

NO

Insufficient heat output

YES

REGULAR OPERATION

YES

NO

NO

NOYES

If all checks have been passed, then:- LED is burnt- Card is faulty

CHECK:a) Flame control device is poweredb) Onboard switch set on Winterc) 7-9 contact closed

If all checks have been passed, then the problem could be:- Faulty card

Is burner running at MIN input?

If all checks have been passed, then the problem could be:- NTC1 sensor has already reached max value of 21°C- Sensor nees to be calibrated

Decrease installation height of NTC1 sensor

Is burner running at MIN power? NO

- Feeler not calibrated- Faulty card

YES

8. TROUBLESHOOTING OF BASIC UNIT



Pag. 55


Is burner on (flame on LCD)?

Does the following icon flash on LCD?

Is radiator icon displayed on LCD?

Does the LCD display the following icon?

Unit is locked Unlock the unit

Set the chronothermosta

t to ON

YES

YES

SANITARY ICON APPEARSSet to ON (either manual or automatic) the chronothermostat for heating mode

Does LCD display time and

temperature?

CHECK:a) Power supplyb) Just one cable for wiring power supply and chronothermostatc) Electromagnetic interferencesd) Reset the chronothermosta using its buttone) Faulty chronothermostat

CHECK:a) 7-9 terminal are closedb) A35 parameter is set to 0c) Summer/winter switch is set to Winter

NO

NO

SEE LOCK REASONS

Is required room temperature

reached?

YES

Is burner running at MAX input?

NO

Insufficient heat output

YES

REGULAR OPERATION

YES

Check that ST1 value is greater than the value measured by NTC1 feeler.

NO

NO

NO

YES

NO

YES

!

The chronothermostat is set to manual turning off

9. TROUBLESHOOTING WITH THERMOSTAT



Pag. 56

10. TROUBLESHOOTING WITH APEN REMOTE CONTROL


IS BURNER ON?

DOES THE LCD DISPLAY Fxx ?

IS RED LED ON?

IS GREEN LED ON?

UNIT IS LOCKED UNLOCK THE UNIT

-CHECK THE FOLLOWING BRIDGES ARE CLOSED- 7-9 ON THE CARD - - 1-2 ON REMOTE CONTROL-MAKE SURE ST2 VALUE IS GREATER THAN THE VALUE MEASURED BY NTC2

YES

THE UNIT WAS TURNED OFF MANUALLY. PRESS ON BUTTON

DOES LCD SHOW TIME AND TEMPERATURE ?

CHECK:a) POWER SUPPLYb) CHRONOTHERMOSTAT WIRE AND POWER SUPPLY CABLE ARE SEPARATEc) IF “ERR” APPEARS, REVERSE 3-4 WIRES IN REMOTE CONTROL

NO

SEE FAILURE REASONS

DOES DELIVERED AIR REACH REQUIRED TEMPERATURE?

YES

CHECK THAT BURNER IS RUNNING AT 100%

INPUT

NO

INSUFFICIENT HEAT OUTPUT

YES

REGULAR OPERATION

YES

CHECK THAT ST1 VALUE IS GREATER THAN THE VALUE MEASURED BY NTC1

NO

NO

NO

YES

NO

YES

NO

YES

- FAULTY CARD- FAULTY REMOTE CONTROL



Pag. 57

11. TROUBLESHOOTING - LOCKS

F1 BURNER START UPFAILURE

- NO GAS SUPPLY- PHASE AND NEUTRAL HAVE BEEN REVERSED- NO GROUNDING- PHASE-PHASE CONNECTION WITHOUT NEUTRAL- BORKEN OR MISPLACED START UP ELECTRODE- BORKEN OR MISPLACED DETECTION ELECTRODE- DETECTION ELECTRODE IS UNSETTLED OR CAUSES DISPERSION WHEN HOT- PILOT NOZZLE IS DIRTY OR WITH WRONG DIAMETER

F2 SAFETY THERMOSAT

- FAN IS BROKEN- INSUFFICIENT COOLING OF THE EXCHANGER- THERMOSTAT BULB IS BROKEN- THE BULB IS IN CONTACT WITH THE EXCHANGER- BROKEN GASKETS - HOT SMOKE ON THE BULB (inside burnerhousing)* NOTE: THE BULB IS SENSIBLE ALL ALONG ITS LENGTH, NOTONLY AT ITS EDGE

WRONG READER OFNTC1 OR NTC2 FEELER

F3

F4

FAULTY BURNER FAN

- LOW VOLTAGE CABLE TO BURNER FAN IS FAULTY OFDISCONNECTED- CHECK THAT A1 & A2 VALUES MATCH THOSE LISTED IN THETABLE ON PARAGRAPH “REPLACING THE MODULTAION CARD”(with chronothermostat only)- BUNER FAN IS BROKEN

- CHECK THAT C0 PARAMETER IS SET TO 2 FOR NTC1 FEELER- CHECK BRIDGE ON OT CARD IS CORRECTLY INSTALLED- CHECK NTC1 FEELER- CHECK NTC2 FEELER (remote control only)

LOCK OF CPU-PLUSCARDF6 - IF MODULATION CARD REPEATEDLY LOCKS, REPLACE IT

FLAME CONTROLDEVICEF8

- CHECK WIRE CONNECTING FLAME CONTROL DEVICE ANDCPU-PLUS CARD- FAULTY FLAME CONTROL DEVICE

WRONG WIRING OFREMOTE CONTROL

ERR(remote control

only)

WIRES CONNECTING 3 & 4 TERMINALS OF REMOTE CONTROLTO CPU-PLUS CARD ARE MISPLACED



Pag. 58

12. WIRING DIAGRAMSWiring Diagram for PL015/PL072 (cod.JG0200.00)For connections, see section on Installation.

LR• R

ed LED

LV• G

reen LED

M1

• Control term

inal boardN

TC• N

TC tem

perature sensorS

B• R

eset buttonSTB

• Safety therm

ostat(m

anual reset)TR

• 230/24V transform

erVA1/2

• Warm

air fanVAG

• Air/gas fan

LegendAC

F• Flam

e control deviceB

1• P

ilot burner solenoid valveEA

• Start up electrode

ER

• Detection electrode

E/I

• Sum

mer/w

inter switch

F1• 4 A

T fuse (delayed) (highvoltage side)

F2• 2.5 A

T fuse (delayed) (lowvoltage side)

EC

· Condensate D

etection E

lectrode (only forK

ondensa)



Pag. 59

Wiring Diagram for PL092 (code.JG0202.00)for connections, see section on Installation

CA

BLE

CO

LOU

R

BLA

CK

PH

AS

E 230V

B

LUE

NE

UTR

AL 230V

R

ED

24V

YELLO

W/G

REE

NG

RO

UN

D

CA

BLE

CO

LOU

R

GR

EY

GR

EEN W

HITE

EC

· Condensate D

etection E

lectrode (only forK

ondensa)



Pag. 60

Wiring Diagram for PLC024/054 (cod.JG0204.00)for connections, see section on Installation

LegendAC

F• Flam

e control devicefiam

ma

B1

• Pilot burner solenoid valve

pilotaEA

• Start up electrode

ER

• Detection electrode

E/I

• Sum

mer/w

inter switch

F1• 4 A

T fuse (delayed) (highvoltage side)

F2• 2.5 A

T fuse (delayed) (lowvoltage side)

LR• R

ed LED

LV• G

reen LED

M1

• Control term

inal boardN

TC• N

TC tem

perature sensorS

B• R

eset buttonSTB

• Safety therm

ostat(m

anual reset)TR

• 230/24V transform

erVA1/2

• Warm

air fanVAG

• Air/gas fan

EC

· Condensate D

etection E

lectrode (only forK

ondensa)



Pag. 61

13. SPARE PART LISTControl Panel Parts

TOROIDAL TRANSFORMER230V / 24VG14313

F2 - 2.5A FUSEX04058

CPU-PLUS MODULATIONCARDG15920.05

F1 - 4A FUSEX00519

M1 TERMINAL BOARDX01058

RELAY MINI “10A TO 230VaC - 2 Contacts”X01076*BASEX01061** For PL092 model only

RIVETS FORGROUNDINGX01801

HG

0107

.08_

C2_

017

IT_e

d.06

09

110°C thermostatG16300

PG7 - X00764nut X00763

PG9 - G02402nut G02403

Power supply plugG12064.01

Power supply plugG12063

Click-on cap HP-13 NylonC00023

Silicone rubber sealX00784

HG

0107

.08_

C2_

019

IT_e

d.06

09

HG

0107

.08_

C2_

018

IT_e

d.06

09

Honeywell ChronothermostatG14850 (for IT-GB-ES)G14860 (for FR-DE-NL)

Apen remote controlG15950

HG0106 C2,057



Pag. 62

Valve/gas hose gasketC03430

Panel/gas hose gasketC00520 (015 to 054)

X01743 (072/092)

Gas supply pipeG14169.08 (015 to 054)G14474.08 (072)G14394.08 (092)

Brass locknut 3/4" G (015 to 054)X00630

Brass locknut 1" G (072/092)X03970

HG

0107

.08_

C2_

020

IT_e

d.06

09

Flame control deviceG14073.01

Gas valveG14067 (015/024/032/035/043/054)G14281 (072)G14456 (092)

CEME pilot solenoid valveG14378

Pilot/solenoid valve F. hoseG14065.08 (015 to 054)G14408.08 (072/ 092)

Pilot-solenoid valve hoseG14064.08 (015 to 054)G14409.08 (072/ 092)

Start-up wireG04123.02 (015 to 054)

G14062.01 (072/092)

Detection wireG14063

Start-up electrodeG16333

Detection electrodeG16334

Air/gas fanG14212 (015 to 043)G14070.01 (054)G14282 (072/092)

GlassG16324

Glass gasketG16329

Gas valve Venturi

G14990 (015)G14068 (024/032/035)G14154 (043/054/072/092)

Fan gasketG14086 (015 to 054)G14400(072/092)

gasket for burner flangeG16332

Pilot nozzleG14626 (natural gas)G14779 (LPG)G14780(for TheNetherlands only)

Torch gasketG14086 (015 to 054)

G14450 (072/092)

HG0106 C2,030

HG0106 C2,040

HG0106 C2,041

Burner Group Parts

Pilot flame groupG15030 GAS METANOG15030-0001 GAS GPLG15030-0002 (for The Netherlands only )



Pag. 63

Temperature sensorG14905

Exhaust terminalG14161.08 (015/054)G14397.08 (072/092)

Air Intake TerminalG01239 (015/054)G14244 (072/092)

Closing handleG14531

HingeX00536

HG

0107

.08_

C2_

021

IT_e

d.06

09

HG

0107

.08_

C2_

022

IT_e

d.06

09

code modelG15213 -S (015)G15313 -S (024/032/035)G15333 -S (043)G15353 -S (054)G15413 -S (072/092)

LEDScode colourC09089.01 RedC09088.01 Green

BUTTON SWITCHSUMMER/0/WINTERcodeG12209.01

RESET BUTTONcodeG13268

LOUVER

Modell FanPL015 C07188 Elco / C09250 Hidria N°1PL024/32 G01760 Elco / G03270 Hidria N°1PL035 G14309 Ebm / G14890 Hidria N°1PL043 G01760 Elco / G03270 Hidria N°1PL054 G14309 Ebm / G14890 Hidria N°2PL072 G14309 Ebm / G14890 Hidria N°2PL092 G14309 Ebm / G14890 Hidria N°3



Pag. 64

APEN GROUP s.p.a.Capitale sociale 928.800 interamente versato20060 Pessano con Bornago - MilanoVia Isonzo, 1 - Tel. (02) 9596931 ( 8 linee r.a. )Telefax (02) 95742758Internet: http://www.apengroup.comE-mail: [email protected] Fiscale e P.IVA 08767740155 C.C.I.A. n.1248033

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Manual Apen Group

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