ECO 280 FI.pdf

5/20/2018 ECO 280 FI.pdf

1/212

Caldera mural de gas de alto rendimientoManual para el usuario y el instalador

ES

Central mural cu gaz, de nalt randamentManual de instruciuni destinat utilizatorului i instalatoruluiRO

Magas hozam fali gzkaznFelhasznli s szereli kziknyv

HU

Zvsn plynov kotel s vysokou innostNvod k pouit uren pro uivatele a technika

CZ

Plynov nstenn kotol s vysokou vkonnosouNvod na pouitie uren pre uvatea a pracovnka vykonvajceho intalciu

SK

RU

High efficiency wall-mounted gas-fired boilersInstructions for Users and Installers

GB

5/20/2018 ECO 280 FI.pdf

2/212

2924.674.2 - GBINSTRUCTIONS PERTAINING TO THE USER

1. Instructions prior to installation 32. Instructions prior to commissioning 3

3. Commissioning of the boiler 4

4. DHW temperature adjustment 4

5. Room temperature adjustment 5

6. Filling the boiler 5

7. Turning off the boiler 5

8. Gas change 59. Prolonged standstill of the system. Frost protection 6

10. Safety device indicators - activation 6

11. Servicing instructions 6

12. General information 7

13. Instructions prior to installation 7

14. Boiler installation 815. Boiler size 8

16. Installation of flue and air ducts 9

17. Connecting the mains supply 13

18. Fitting a room thermostat 13

19. Gas change modalities 14

20. Displaying electronic control card parameters on the boiler display (INFO mode) 1621. Control and operation devices 17

22. Electronic board calibration 18

23. Positioning of the ignition and flame sensing electrode 18

24. Check of combustion parameters 18

25. Output / pump head performances 1926. Connection of the external probe 19

27. Connection an external boiler 20

28. How to purge the DHW system from limestone deposits 21

29. How to disassemble the DHW heat exchanger 21

30. Cleaning the cold water filter 2131. Boiler schematic 22-2532. Illustrated wiring diagram 26-29

33. Technical data 30

CONTENTS

ISTRUCTIONS PERTAINING TO THE USER

ISTRUCTIONS PERTAINING TO THE INSTALLER

Dear Customer,

We are sure your new boiler will comply with all your requirements.

Purchasing one of the BAXIproducts satisfies your expectations: good functioning, simpli-

city and ease of use.

Do not dispose of this booklet without reading it: you can find here some very useful infor-

mation, which will help you to run your boiler correctly and efficiently.

BAXIboilers bear the CE mark in compliance with the basic requirements as laid down

in the following Directives:- Gas Directive 90/396/EEC- Performance Directive 92/42/EEC- Electromagnetic Compatibility Directive 89/336/EEC- Low Voltage Directive 2006/95/EC

Do not leave any parts of the packaging (plastic bags, polystyrene, etc.) within childrens reach as they are apotential source of danger.

5/20/2018 ECO 280 FI.pdf

3/212


This boiler is designed to heat water at a lower than boiling temperature at atmospheric pressure. The boiler must be

connected to a central heating system and to a domestic hot water supply system in compliance with its performances

and output power.Have the boiler installed by a Qualified Service Engineer and ensure the following operations are accomplished:

a) careful checking that the boiler is fit for operation with the type of gas available. For more details see the notice on the

packaging and the label on the appliance itself.

b) careful checking that the flue terminal draft is appropriate; that the terminal is not obstructed and that no other applianceexhaust gases are expelled through the same flue duct, unless the flue is especially designed to collect the exhaust gas

coming from more than one appliance, in conformity with the laws and regulations in force.

c) careful checking that, in case the flue has been connected to pre-existing flue ducts, thorough cleaning has been carried

out in that residual combustion products may come off during operation of the boiler and obstruct the flue duct.

d) to ensure correct operation of the appliance and avoid invalidating the guarantee, observe the following precautions:

1. Hot water circuit:

1.1. If the water hardness is greater than 20 F (1 F = 10 mg calcium carbonate per litre of water) a polyphosphate or

comparable treatment system responding to current regulations.

1.2. Domestic Hot Water circuit must be thoroughly flushed after the installation of the appliance and before its use.

2. Heating circuit

2.1. new system

Before proceeding with installation of the boiler, the system must be cleaned and flushed out thoroughly to eliminate

residual thread-cutting swarf, solder and solvents if any, using suitable proprietary products.

To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non alkaline. The

recommended products for cleaning are:

SENTINEL X300 or X400 and FERNOX heating circuit restore. To use this product proceeding strictly in accordancewith the makers directions.

2.2. existing system

Before proceeding with installation of the boiler, the system must be cleaned and flushed out to remove sludge

and contaminants, using suitable proprietary products as described in section 2.1.

To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non-alkaline suchas SENTINEL X100 and FERNOX heating circuit protective. To use this product proceeding strictly in accordance

with the makers directions.

Remember that the presence of foreign matter in the heating system can adversely affect the operation of the

boiler (e.g. overheating and noisy operation of the heat exchanger).

Failure to observe the above will render the guarantee null and void.

1. INSTRUCTIONS PRIOR TO INSTALLATION

Initial lighting of the boiler must be carried out by a licensed technician. Ensure the following operations are carried out:a) compliance of boiler parameters with (electricity, water, gas) supply systems settings.

b) compliance of installation with the laws and regulations in force.

c) appropriate connection to the power supply and grounding of the appliance.


Prior to commissioning remove the protective plastic coating from the unit. Do not use any tools or abrasive detergents

as you may spoil the painted surfaces.

2. INSTRUCTIONS PRIOR TO COMMISSIONING

5/20/2018 ECO 280 FI.pdf

4/212


To correctly light the burner proceed as follows:

1) provide power supply to the boiler;2) open the gas cock;3) turn the selector switch (Figure 2) to set the boiler on summertime ( ) or wintertime ( ) operation;4) turn the central heating (2) and domestic hot water (1) adjusting controls in order to light the main burner. To increase temperature values turn the control clockwise and anticlockwise to decrease it.

When on summertime operation ( ) the main burner and the pump will start running only when there is a call for hotwater.

3. COMMISSIONING OF THE BOILER

Figure 20503_

1109/CG1659

Reset Winter OFF Summer

Summer / Winter / Reset / OFF selector positions

4. DHW TEMPERATURE ADJUSTMENT

The gas valve is provided with an electronic flame-modulating function, which operates depending on the DHW temperatureadjusting control (1) settings and on the quantity of water drawn from the taps.

This electronic device allows to keep the water coming out of the boiler at a constant temperature also when small quan-tities of water are drawn.During a domestic ho water request, the display shows a domestic hot water (D.H.W.) temperature.To increase temperature values turn the control clockwise and anticlockwise to decrease it.

LEGEND:

Operating in

Central Heating mode (CH)

Flame present

(burner switch on)

Loss of flame

(burner off)

Operating in Domestic

Hot Water mode (D.H.W.)

Generic ERROR

Water pressure LOW

Numeric signalling(temperature, error codes, etc)

RESET

Figure 1

1

2

3

4

Domestic hot water (D.H.W.) control knob

Central heating (C.H.) control knob

Warning: During initial lighting, untilthe air contained in the gas pipes isnot released, the burner may fail tolight immediately and that may causea blockage of the boiler. Under suchcircumstances we recommend you

repeat the ignition procedure until gasis delivered to the burner, and set knobto ( - RESET) for at least 2 second.

Selector (figure 2)

Display

0605_2201 / CG_1805

5/20/2018 ECO 280 FI.pdf

5/212


5. ROOM TEMPERATURE ADJUSTMENT

The system must be equipped with a room thermostat (see the relevant regulations) to control the temperature in therooms.In case there is no room thermostat, during initial lighting, it will be possible to control the room temperature by turningcontrol (2).During a central heating mode, the display shows a central heating (C.H.) flow temperature.To increase temperature values turn the control clockwise and anticlockwise to decrease it. Electronic modulation of

the flame will enable the boiler to reach the set temperature by adapting the gas supply to the burner to the actual heatexchange demand.

Important: Regularly check that the pressure displayed by the pressure gauge is 0.7 to 1.5 bar, with boiler not operating.In case of overpressure, open the boiler drain valve (Figure 3).In case the pressure is lower open the boiler filling tap (Figure 3).We recommend you open the tap very slowly in order to let off the air.During this operation, the Summer/Winter selector (Figure 2) must be in the OFF position (0).

NOTE: In case pressure drops occur frequently have the boiler checked by a Qualified Service Engineer.

6. FILLING THE BOILER

The boiler is supplied with a hydraulic pressuresensor, which blocks the boiler in case water is

lacking.

The electric supply to the boiler must be removed in order to switch it off. With the selector in O position (off figure 2),the gas boiler remain switched off, the display (4 figure 1) reads out OFF but the main board is still supplied and the

Frost protection function is activated.

NOTE: with the selector in 0 position and external probe connected, the display carries out the actual value of

the external temperature.

7. TURNING OFF THE BOILER

8. GAS CHANGE

These boilers set for natural gas can be converted to work with LPG.Any gas change must be effected by a Qualified Service Engineer.

Figure 3

0603_

1302/CG_

1791

Filling tap

Drain point

Manometer

5/20/2018 ECO 280 FI.pdf

6/212


10. SAFETY DEVICE INDICATORS - ACTIVATION

We recommend you avoid draining the whole system as water replacements engender purposeless and harmful limestone

deposits inside the boiler and on the heating elements. In case the boiler is not operated during wintertime and is therefore

exposed to danger of frost we suggest you add some specific-purpose anti-freeze to the water contained in the system

(e.g.: propylene glycole coupled with corrosion and scaling inhibitors).

The electronic management of boilers includes a frost protection function in the central heating system which operates

the burner to reach a heating flow temperature of 30 C when the system heating flow temperature drops below 5C.

The frost protection function is enabled if:* electrical supply to the boiler is on;

* the gas service cock is open;

* the system pressure is as required;

* the boiler is not blocked.

9. PROLONGED STANDSTILL OF THE SYSTEM. FROST PROTECTION

To RESET the gas boiler, turn selector (Figure 2) to

R for at least 2 seconds. If the fault persists, call an

authorised service centre.

Note: It is possible to carry out n 5 relighting

attempts in a row, after which the RESET

function is disabled and the gas boiler still

blocked.

To carry out a new RESET attempt, turn theselector (figure 2) in OFF position for at least 2

seconds.

NOTE:if a fault occurs, the display reads out an error code flashing together with background light.

To maintain efficient and safe operation of your boiler have it checked by a Qualified Service Engineer at the end of everyoperating period.

Careful servicing will ensure economical operation of the system.Do not clean the outer casing of the appliance with abrasive, aggressive and/or easily flammable cleaners (i.e.: gasoline,alcohol, and so on). Always isolate the electrical supply to the appliance before cleaning it (see section 7 Turning off theboiler).

11. SERVICING INSTRUCTIONS

If a fault occurs, the display reads out an error message identifying it (es. E 01):

Corrective action

Turn selector (figure 2) to R for at least 2 seconds. If this

fault persists, call an authorised service centre.



Call an authorised service centre.



Check that the pressure in the system is as specified.

See section 6. If this fault persists, call an authorised

service centre.




Description of FAULTS

Gas supply fault

Safety thermostat sensor tripped

Flue thermostat sensor tripped / Flue

pressure switch trippedCentral heating NTC sensor fault

Domestic Hot Water NTC sensor fault

Water pressure LOW

Boiler max temperatureexceeded(probable pump jammed)

Fault flame (parasitic flame)

Error code

E01

E02

E03

E05

E06

E10

E25

E35

Figure 4

0607_

1205

RESETTING

ERRORS

5/20/2018 ECO 280 FI.pdf

7/212

7924.674.2 - GBINSTRUCTIONS PERTAINING TO THE INSTALLER

This boiler is designed to heat water at a lower than boiling temperature at atmospheric pressure. The boiler must beconnected to a central heating system and to a domestic hot water supply system in compliance with its performancesand output power.Have the boiler installed by a Qualified Service Engineer and ensure the following operations are accomplished:

a) careful checking that the boiler is fit for operation with the type of gas available. For more details see the notice on thepackaging and the label on the appliance itself.

b) careful checking that the flue terminal draft is appropriate; that the terminal is not obstructed and that no other applianceexhaust gases are expelled through the same flue duct, unless the flue is especially designed to collect the exhaust gas

coming from more than one appliance, in conformity with the laws and regulations in force.

c) careful checking that, in case the flue has been connected to pre-existing flue ducts, thorough cleaning has been carriedout in that residual combustion products may come off during operation of the boiler and obstruct the flue duct.

To ensure correct operation of the appliance and avoid invalidating the guarantee, observe the following precautions:

1. Hot water circuit:

1.1. If the water hardness is greater than 20 F (1 F = 10 mg calcium carbonate per litre of water) a polyphosphate orcomparable treatment system responding to current regulations.

1.2. Domestic Hot Water circuit must be thoroughly flushed after the installation of the appliance and before its use.

2. Heating circuit

2.1. new system Before proceeding with installation of the boiler, the system must be cleaned and flushed out thoroughly to eliminate

residual thread-cutting swarf, solder and solvents if any, using suitable proprietary products. To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non alkaline. The

recommended products for cleaning are: SENTINEL X300 or X400 and FERNOX heating circuit restore. To use this product proceeding strictly in accordance

with the makers directions.

2.2. existing system Before proceeding with installation of the boiler, the system must be cleaned and flushed out to remove sludge

and contaminants, using suitable proprietary products as described in section 2.1. To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non-alkaline such

as SENTINEL X100 and FERNOX heating circuit protective. To use this product proceeding strictly in accordancewith the makers directions.

Remember that the presence of foreign matter in the heating system can adversely affect the operation of theboiler (e.g. overheating and noisy operation of the heat exchanger).


Warning:When the selector switch (figure 2) is set on Wintertime operation ( ), it may be necessary to wait some minutesfor the relight of the boiler, at each intervention of the central heating temperature adjusting control (2-figura 1).

No waiting is needed when the boiler is in the DHW mode on models with this option.

To relight the main burner immediately place the selector switch (figure 2) on 0 position and then again on ( ) position.

The following remarks and instructions are addressed to Service Engineers to help them carry out a faultless installation. In-structions regarding lighting and operation of the boiler are contained in the Instructions pertaining to the user section.Note that installation, maintenance and operation of the domestic gas appliances must be performed exclusively by quali-fied personnel in compliance with current standards.Please note the following:* This boiler can be connected to any type of double- or single feeding pipe convector plates, radiators, thermoconvectors.

Design the system sections as usual though taking into account the available output / pump head performances, asshown in section 26.

* Do not leave any packaging components (plastic bags, polystyrene, etc.) within childrens reach as they are a potentialsource of danger.

* Initial lighting of the boiler must be effected by a Qualified Service Engineer.Failure to observe the above will render the guarantee null and void.

12. GENERAL INFORMATION

13. INSTRUCTIONS PRIOR TO INSTALLATION

5/20/2018 ECO 280 FI.pdf

8/212


14. BOILER INSTALLATION

Decide upon the boiler location, then tape the template on the wall. Connect the pipework to the gas and water inletsprearranged on the template lower bar. We suggest you fit two G3/4 stop cocks (available on demand) on the centralheating system flow and return pipework; the cocks will allow to carry out important operations on the system withoutdraining it completely. If you are either installing the boiler on a pre-existent system or substituting it, we suggest you alsofit settling tank on the system return pipework and under the boiler to collect the deposits and scaling which may remainand be circulated in the system after the purge.

When the boiler is fixed on the template connect the flue and air ducts (fittings supplied by the manufacturer) accordingto the instructions given in the following sections.When installing the 240 i - 1.240 imodels (boilers with natural draught), make the connection to the flue using a metalpipe which will provide resistance over time to the normal mechanical stresses, heat and the effects of the combustionproducts and any condensation they form.

15. BOILER SIZE

Figure 6

Figure 5

BOILER CONNECTION POINTS

BOILERHEIGHT780

0512_

0504/CG1769

0512_0505/CG1769

: G3/4 heating flow / return

: G1/2 domestic hot water inlet / outlet

: G3/4 gas inlet to the boiler

min

imo

0606_

2602

0606_

2603

: G3/4 heating flow / return

: Filling the system G 1/2

: G3/4 gas inlet to the boiler

240 i - 240 Fi1.240 i - 1.240 Fi

240 i - 1. 240 i 240 Fi - 1. 240 Fi

0710_2501 / CG1769

5/20/2018 ECO 280 FI.pdf

9/212


16. INSTALLATION OF FLUE AND AIR DUCTS

Models 240 Fi - 1.240 Fi

We guarantee ease and flexibility of installation for a gas-fired forced draught boiler thanks to the fittings and fixturessupplied (described below).

The boiler is especially designed for connection to anexhaust flue / air ducting, with either coaxial, vertical orhorizontal terminal. By means of a splitting kit a two-pipesystem may also be installed.

Exclusively install fittings supplied by the manufac-turer.

Figure 7

0503_

0905/CG1638

Figure 8

COAXIAL FLUE - AIR DUCT (CONCENTRIC)

This type of duct allows to disengage exhaust gases and to draw combustion air both outside the building and in case aLAS flue is fitted.The 90 coaxial bend allows to connect the boiler to a flue-air duct in any direction as it can rotate by 360. It can moreoverbe used as a supplementary bend and be coupled with a coaxial duct or a 45 bend.

0511_

2701/CG1750 If the flue outlet is placed outside, the flue-air ducting must

protrude at least 18mm out of the wall to allow alluminium wea-thering tile to be fitted and sealed to avoid water leakages.Ensure a minimum downward slope of 1 cm towards theoutside per each metre of duct length.

A 90 bend reduces the total duct length by 1 metre.

A 45 bend reduces the total duct length by 0.5 me-tre.

The first 90 bend is not included in the maximum avai-

lable length.

Securing clamp

Concentric outlet

A

B

Boiler

model

240 Fi

1.240 Fi

280 Fi

0 1

1 2

2 5

0 1

1 2

2 4

Length (m)

Air suction

RESTRICTORB

Yes

No

No

Yes

No

Flue

RESTRICTORA

Yes

No

No

Yes

No

No

5/20/2018 ECO 280 FI.pdf

10/212


16.1 HORIZONTAL FLUE TERMINAL INSTALLATION OPTIONS

0503_

0907/CG1640

16.2 LAS FLUE DUCT INSTALLATION OPTIONS

16.3 VERTICAL FLUE TERMINAL INSTALLATION OPTIONS

This type of installation can be carried out both on a flat or pitched roof by fitting a terminal, an appropriate weatheringtile and sleeve, (supplementary fittings supplied on demand).

0503_

0908/CG1641

0512_

2001

For detailed instructions concerning the installation of fittings refer to the technical data accompanying the fittings.

L max = 5 m 240 Fi 60/100 mm - 9 m 80/120 mmL max = 4 m 280 Fi 60/100 mm

L max = 5 m 240 Fi 60/100 mm - 9 m 80/120 mmL max = 4 m 280 Fi 60/100 mm

L max = 4 m 240 Fi 60/100 mm - 8 m 80/120 mm

L max = 3 m 280 Fi 60/100 mm

L max = 4 m 60/100 mmL max = 10 m 80/120 mm

L max = 2 m 60/100 mmL max = 8 m 80/120 mm

L max = 3 m 60/100 mmL max = 9 m 80/120 mm

5/20/2018 ECO 280 FI.pdf

11/212


SEPARATED FLUE-AIR DUCTING

This type of ducting allows to disengage exhaust flue gases both outside the building and into single flue ducts.Comburant air may be drawn in at a different site from where the flue terminal is located.The splitting kit consists of a flue duct adaptor (100/80) and of an air duct adaptor.For the air duct adaptor fit the screws and seals previously removed from the cap.

The restrictor must be removed in the following cases

Figure 9

0604/2301/CG17

76

Split flue air control adjustment

The adjustment of this control is requiredto optimise performance and combustionparameters. The air suction coupling canbe rotated to adjust excess air accordingto the total length of the flue and intakeducts for the combustion air.Turn this control to increase or decreaseexcess combustion air (figure 9):

To improve optimisation a combu-stion product analyser can be used to

measure the CO2 contents of the flueat maximum heat output, graduallyadjusting air to obtain the CO

2 reading

in the table below, if the analysis showsa lower value.To properly install this device, also referto the technical data accompanying thefitting.

Flue duct adaptor

Seal

Air suction coupling

adjust

Index

Opening

The 90 bend allows to connect the boiler to flue-air ducting regardless of direction as it can be rotated by 360. It canmoreover be used as a supplementary bend to be coupled with the duct or with a 45 bend.

A 90 bend reduces the total duct length by 0.5 metre.

A 45 bend reduces the total duct length by 0.25 metre.

The first 90 bend is not included in the maximum available length.

Boiler

model

240 Fi

1.240 Fi

280 Fi

0 4

4 15

15 25

25 40

0 2

2 10

10 25

(L1+L2)Air suction

copupling

position

3

1

2

3

1

2

3

Flue

RESTRICTOR

A

Yes

No

No

CO2 %

G20

6,4

7,4

G31

7,3

8,4

5/20/2018 ECO 280 FI.pdf

12/212


0503_

2201/CG1643

16.5 SEPARATED HORIZONTAL FLUE TERMINALS INSTALLATION OPTIONS

IMPORTANT: Ensure a minimum downward slope of 1 cm toward the outside per each metre of duct length.In the event of installation of the condensate collection kit, the angle of the drain duct must be directed towards the boiler.

NB:For C52 types, terminals for combustion air suction and combustion product extraction must never be fitted on op-

posite walls of the building.The maximum length of the suction duct for type C52 must be 10 metres.

If the flue duct exceeds 6 m, the condensate collection kit (supplied as an accessory) must be fitted close to the

boiler.

16.4 SPLIT FLUE OVERALL DIMENSIONS

0504_

1806/CG_

1794

0503_

0911/CG1644

L max = 15 m 240 FiL max = 12 m 280 Fi

L max = 14 m 240 FiL max = 10 m 280 Fi

16.6 SEPARATED VERTICAL FLUE TERMINALS INSTALLATION OPTIONS

(L1 + L2) max = 40 m 240 Fi(L1 + L2) max = 25 m 280 Fi

L max = 10 m 240 FiL max = 8 m 280 Fi

5/20/2018 ECO 280 FI.pdf

13/212


17. CONNECTING THE MAINS SUPPLY

Electrical safety of the appliance is only guaranteed by correct grounding, in compliance with the applicable laws andregulations.Connect the boiler to a 230V monophase + ground power supply by means of the three-pin cable supplied with it andmake sure you connect polarities correctly.Use a double-pole switch with a contact separation of at least 3mm in both poles.In case you replace the power supply cable fit a HAR H05 VV-F 3x0.75mm2cable with an 8mm diameter max.

access to the power supply terminal block

isolate the electrical supply to the boiler by the double-pole switch; unscrew the two screws securing the control board to the boiler; rotate the control board; unscrew the lid and gain access to the wiring (Figure 10).

Important:if fitting a single exhaust flue duct, ensure it is adequately insulated (e.g.: with glass wool) wherever the ductpasses through building walls.For detailed instructions concerning the installation of fittings refer to the technical data accompanying the fittings.

Figure 10

18. FITTING A ROOM THERMOSTAT

gain access to the power supply terminal block (Figure 10) as described in the previous section; remove the jumper placed on terminals (1) and (2); insert the duplex cable through the core hitch and connect it to the two terminals.

A 2A fast-blowing fuse is incorporated in the power supply terminal block (to check or replace the fuse, pull out the blackfuse carrier).

IMPORTANT:be sure to connect polarities correctly L(LIVE) - N(NEUTRAL).

(L) = Live(brown)

(N) = Neutral(blue)

( ) = Ground(yellow/green)

(1) (2) = Room thermostat terminals

0607_

2301/CG_

1806

TERMINAL BLOCKM1

5/20/2018 ECO 280 FI.pdf

14/212


A Qualified Service Engineer may adapt this boiler to operate with natural gas (G. 20) or with liquid gas (G. 31).

A Qualified Service Engineer may adapt this boiler to operate with natural gas (G. 20) or with liquid gas (G. 31).

The procedure for calibrating the pressure regulator may vary according to the type of gas valve fitted (HONEYWELL orSIT; see figure 12).

Carry out the following operations in the given sequence:

A) substitute the main burner injectors;B) change the modulator voltage;C) proceed with a new max. and min. setting of the pressure adjusting device.

A) Substitute the main burner injectors

carefully pull the main burner off its seat; substitute the main burner injectors and make sure you tighten them to avoid leakage. The nozzle diameters are spe-

cified in table 2.

19. GAS CHANGE MODALITIES

Figure 12

SIT valve

mod. SIGMA 845

Honeywell valve

mod. VK 4105 M

9912221500

Pc

Pb

Pa

B) Change the modulator voltage

remove the 2 screws securing the control board cover andhinge it upward;

set the jumper or the switch, according to the type of gasused, as described in the chapter 22.

C) Pressure adjusting device setting

connect the positive pressure test point of a differential(possibly water-operated) manometer to the gas valvepressure test point (Pb) (Figure 12); connect, for sealedchamber models only, the negative pressure test point ofthe manometer to a T fitting in order to join the boileradjusting outlet, the gas valve adjusting outlet (Pc) and themanometer. (The same measurement can be carried outby connecting the manometer to the pressure test point(Pb) after removing the sealed chamber front panel);

If you measure the pressure of burners in a different wayyou may obtain an altered result in that the low pressurecreated in the sealed chamber by the fan would not betaken into account.

C1) Adjustment to rated output

open the gas tap and rotate knob (Figure 12) to set theboiler to the Winter setting ( );

open a hot water tap to reach a minimum 10 l/minute flowrate or ensure that maximum heating requirements areset;

remove the modulator cover; adjust the tube brass screw (a) Fig. 13 to obtain the pres-

sure settings shown at table 1; check that boiler feeding dynamic pressure, as measured

at the inlet gas valve pressure test point (Pa) (Figure 12) iscorrect (37 mbar for LPG gas (G.31), 20 mbar for naturalgas);

C2) Adjustment to reduced heat output disconnect the modulator feeding cable and unscrew the

(b) Fig. 13 screw to reach the pressure setting correspon-ding to reduced heat output (see table 1);

connect the cable again; fit the modulator cover and seal.

C3) Final checks apply the additional dataplate, specifying the type of gas

and settings applied.

0505_

2501

Pc

Pb

Pa

5/20/2018 ECO 280 FI.pdf

15/212


Figure 13b

a 0605_

1502

Honeywell gas valve Sit gas valve

0605_

1701

Table of burner pressures

240 i - 1.240 i 240 Fi 280 Fi

Gas used G20 G31 G20 G31 G20 G31

nozzle diameter (mm) 1,18 0,74 1,18 0,74 1,28 0,77

Burner pressure(mbar*) 1,9 4,7 1,9 4,9 1,8 4,9REDUCED HEAT OUTPUT

Burner pressure(mbar*) 10,0 26 11,3 29,4 11,3 31,0NOMINAL HEAT OUTPUT

no. of nozzles 15

* 1 mbar = 10,197 mm H2O

Table 1

Consumption 15C-1013 mbar 240 i - 1.240 i 240 Fi 280 Fi

G20 G31 G20 G31 G20 G31

Rated heat output 2,78 m3/h 2,04 kg/h 2,73 m3/h 2,00 kg/h 3,18 m3/h 2,34 kg/h

Reduced heat output 1,12 m3/h 0,82 kg/h 1,12 m3/h 0,82 kg/h 1,26 m3/h 0,92 kg/h

p.c.i. 34,02 MJ/m3 46,30 MJ/kg 34,02 MJ/m3 46,30 MJ/kg 34,02 MJ/m3 46,30 MJ/kg

Table 2

5/20/2018 ECO 280 FI.pdf

16/212


20. DISPLAYING PARAMETERS ON THE DISPLAY (INFO MODE)

Proceed as follows to display boiler parameters on the front panel display:

IMPORTANT:the following operations (figure 14), it has to be carried out in fast sequence in a short time (~ 4 seconds)

without making any break during the steps:

1) with the control knob ( )in any positionturns it ful ly anti-clockwise to the minimum value;

2) quickly turn control knob clockwise through about a 1/4turn; 3) again turns the control knob fully anti-clockwise to it minimum value

4) then set back the control knob to it original position.

turn the control knob ( ) to display the following informations:

A00: domestic hot water output temperature(C);

A01: outdoor temperature (in C) with outdoor sensor probe connected;

A02: the value (%) of the modulator current (100% = 230 mA NATURAL GAS - 100% = 310 mA LPG);

A03: heat output (%) power range (max R);

A04: central heating water output setpoint temperature (C);A05: central heating water output temperature (C);

A07: valve (A) of the ionization current.

Note: program lines from A06 - A08 - A09 are not used.

INFO function remains active for 3 minutes. To exit INFO function before this time repeat the operation as described

in points 1...4 or cutting OFF the power supply to the boiler.

Note:In INFO mode, the display (4 - figure 1) alternates between the message A00 and CH temperature.

Figure 14

0505_

3001/CG1696

0605_

2204/CG_1

808

5/20/2018 ECO 280 FI.pdf

17/212


The boiler has been designed in full compliance with European reference standards and in particular is equipped with the following:

Central heating temperature adjustment potentiometer ( ) This potentiometer sets the central heating flow max. temperature. Its temperature range goes from 30 C min. to 80 C max. To

increase the temperature turn knob (2 - figure 1) clockwise and anticlockwise to decrease it.

Domestic hot water temperature adjusting potentiometer ( )

This potentiometer sets the domestic hot water max. temperature. Its temperature range goes from 35 C min. to 60 C max accordingto the water inlet flow rate. To increase the temperature turn knob (1 - figure 1) clockwise and anticlockwise to decrease it.

Note: domestic hot water is guaranteed even if the NTC sensor is damaged. In this case, the temperature control is carried out bythe boiler flow temperature.

Flue pressure switch for forced draught model (240 Fi - 1.240 Fi - 280 Fi) This switch allows the burner to switch on provided the exhaust flue duct efficiency is perfect. In the event of one of the following faults: the flue terminal is obstructed the venturi is obstructed the fan is blocked the connection between the venturi and the air pressure switch is interrupted, the boiler will stay on stand-by and the display shows out error code E03 (see table on section 10).

Flue thermostat for natural draught (models 240 i - 1.240 i)

This device has a sensor positioned on the left section of the flue extraction hood and shuts off the gas flow to the burner if the flueduct is obstructed or in the event of draught failure.

Under such conditions the boiler is blocked and the display shows E03 error (see section 10). To relight the main burner immediately, place the selector switch (figure 2) on position for at least 2 seconds.

It is forbidden to disenable this safety device

Overheat safety thermostat Thanks to a sensor placed on the heating flow, this thermostat interrupts the gas flow to the burner in case the water contained in

the primary system has overheated. Under such conditions the boiler is blocked and relighting will only be possible after the cause ofthe anomaly has been removed.

Turn the selector (figure 2) to ( ) for at least 2 seconds to RESET normal operating conditions.

It is forbidden to disenable this safety device

Flame ionization detector

The flame sensing electrode, placed on the right of the burner, guarantees safety of operation in case of gas failure or incompleteinterlighting of the burner. Under such conditions the boiler is blocked. Turn the selector (figure 2) to ( ) for at least 2 seconds to RESET normal operating conditions.

Hydraulic pressure sensor This device enables the main burner only to be switched on if the system pressure is over 0.5 bars.

Pump overrun for central heating circuit The electronically-controlled supplementary running of the pump lasts 180 seconds, when the boiler is in the central heating mode,

after the burner has switched off due to a room thermostat or intervention.

Pump overrun for domestic hot water circuit The electronic control system keeps the pump operating for 30 seconds in domestic hot water mode after the D.H.W. sensor has

switched off the burner.

Frost protection device (central heating and domestic hot water systems) Boilers electronic management includes a frost protection function in the central heating system which operates the burner to reach

a heating flow temperature of 30C when the system heating flow temperature drops below 5 C.This function is enabled when the boiler is connected to electrical supply, the gas supply is on and the system pressure is as requi-red.

Lack of water circulation (probable pump jammed) If the water inside the primary circuit doesnt circulate, the display shows E03 error (see section 10).

Anti-block pump function In the event that no heat is required (during heating and/or sanitary mode), the pump will automatically start up and operate for one

minute during the following 24 hours. This function is operative when the boiler is powered.

Three-way anti-blockage valve In the case of no heat is request for a period of 24 hours the three way valve carries out a complete commutation. This function is operative when the boiler is powered.

Hydraulic safety valve (heating circuit) This device is set to 3 bar and is used for the heating circuit.

The safety valve should be connected to a siphoned drain. Use as a means of draining the heating circuit is strictly prohibited.

21. CONTROL AND OPERATION DEVICES

5/20/2018 ECO 280 FI.pdf

18/212


22. ELECTRONIC BOARD CALIBRATIONWhen the jumper or the switch is in the OFFposition(fig. 15a):

MET operation of the boiler with NATURAL gasT.Risc boiler heating temperature range 30 - 85CT-off 150-seconds heating stand-by time

When the jumper or the switch is in the ONposition(fig. 15b):

GPL operation of the boiler with LPGT.Risc boiler heating temperature range 30 - 45CT-off 30-seconds heating stand-by time

0503_

0912/CG1645

0503_

0913/CG1645

Figure 15b

Figure 15a

NB.Make sure that electrical power supply has been disconnected before making settings.

23. POSITIONING OF THE IGNITION AND FLAME SENSING ELECTRODE

Figure 16

9912070100

The boiler has two connection points specifically designed to allow technicians to measure the combustion efficiency afterinstallation and ensure that the combustion products do not constitute a health risk.One connection point is connected to the flue gas discharge circuit, and allows monitoring of the quality of the combustionproducts and the combustion efficiency.The other is connected to the combustion air intake circuit, allowing checking of any recycling of the combustion productsin case of coaxial pipelines.The following parameters can be measured at the connection point on the flue gas circuit: temperature of the combustion products; oxygen (O

2) or carbon dioxide (CO

2) concentration;

carbon monoxide (CO) concentration.The combustion air temperature must be measured at the connection point on the air intake circuit, inserting the measurementprobe to a depth of about 3 cm.The boiler has two connection points specifically designed to allow technicians to measure the combustion efficiency after

installation and ensure that the combustion products do not constitute a health risk.One connection point is connected to the flue gas discharge circuit, and allows monitoring of the quality of the combustionproducts and the combustion efficiency.The other is connected to the combustion air intake circuit, allowing checking of any recycling of the combustion productsin case of coaxial pipelines.

24. CHECK OF COMBUSTION PARAMETERS

5/20/2018 ECO 280 FI.pdf

19/212


This is a high static head pump fit for installation on any type of single or double-pipe heating systems. The air vent valveincorporated in the pump allows quick venting of the heating system.

25. OUTPUT / PUMP HEAD PERFORMANCES

The following parameters can be measured at the connection point on the flue gas circuit: temperature of the combustion products; oxygen (O


2) concentration;

carbon monoxide (CO) concentration.The combustion air temperature must be measured at the connection point on the air intake circuit, inserting the measurementprobe to a depth of about 3 cm.

For natural draught boiler models, a hole must be made in the flue gas discharge pipe at a distance from the boiler equalto twice the inside diameter of the pipe itself.The following parameters can be measured through this hole:

temperature of the combustion products; oxygen (O


2) concentration;

carbon monoxide (CO) concentration.The combustion air temperature must be measured close to the point where the air enters the boiler.The hole, which must be made by the person in charge of operating the system when it is commissioned, must be sealedin a way which ensures that the combustion product discharge pipe is airtight during normal operation.

26. CONNECTION OF THE EXTERNAL PROBE

The boiler is prearranged for connection of an external probe (supplied as accessory).For the connection, refer to the figure 17 and the instructions supplied with the probe.

Graph 1 OUTPUT l/h

PUMP

HEADmH

2O 05

03_

1120

Figure 17

0711_

2206/CG_

1988

Connect the cable, supplied as an accessory together withthe external probe, to the CN10connector of the boilerelectronic board, as illustrated in figure 17.

5/20/2018 ECO 280 FI.pdf

20/212


When the external probe is connected, the heating circuit temperature control device (2 - figure 1), regulates the dispersalcoefficient Kt (Figure 18).The figures below show the relation between knob position and curves. Intermediate curves may also be set.

0503_

3102/CG1672

IMPORTANT:the TMdelivery temperature value depends on the position of the jumper or the switch T.RISC. (section 23).The maximum possible temperature setting is 85 or 45C.

Figure 18

TM = Range delivery temperatureTe = external temperature

0505_

3002

TM

Te

For models 1.240 Fi - 1.240 i

IMPORTANT: jumper CN7 must be jumpered (see paragraph 32).

Connect the boiler water pipes as shown in figure 19.Remove the resistor from terminal board and connect the optional DHW priority sensor to them.Insert the sensors probe in the relevant hole in the boiler.

Set domestic hot water temperature (5...60 C) using the control knob (1 - figure 1).

27. CONNECTING AN EXTERNAL BOILER

Figure 19

0504_1404Legend

UB DHW boiler unit

UR central heating unit

V3V external three way valve

M2 terminal block

SB DHW priority sensor

MR central heating delivery

MB DHW delivery

RR central heating/DHW return

RB resistor, to be removed

External 3 way valve connection

3 WAY VALVE AND D.K.W. PRIORITY

SENSOR TERMINAL BLOCK.

5/20/2018 ECO 280 FI.pdf

21/212


To clean the DHW system it is not necessary to remove the DHW heat exchanger if the assembly is equipped with the

appropriate taps (supplied on demand) placed on the hot water outlet and inlet.

To carry out the purge it is necessary to: close the cold water inlet

drain the DHW system from the water contained therein by means of a hot water tap

close the DHW outlet

unscrew the two stop cocks caps

remove the filters.

In case the appropriate tap is not supplied it is necessary to disassemble the DHW heat exchanger, as described in the fol-

lowing section, and do the purge aside. We recommend you also purge from limestone deposits the DHW heat exchanger

seat and the NTC sensor fitted on the DHW system.

To purge the exchanger and/or the DHW system we suggest the use of Cillit FFW-AL or Beckinser HF-AL.

28. HOW TO PURGE THE DHW SYSTEM FROM LIMESTONE DEPOSITS

The stainless steel plate-type DHW heat exchanger is easily disassembled with a screwdriver by operating as describedbelow:

drain, if possible, only the boiler system, through the drain tap;

drain the DHW system from water;

remove the two screws (right in front of you) securing the DHW heat exchanger and pull it off its seat (figure 19).

29. HOW TO DISASSEMBLE THE DHW HEAT EXCHANGER

The boiler is equipped with a cold water

filter placed on the hydraulic assembly.

To clean it do the following:

drain the DHW system from water; unscrew the nut on the flow sensing

assembly (Figure 19);

pull out the flow sensing device andits filter;

remove the impurities.

Important: in the event of replace-

ments and/or cleaning of the O-rings

on the hydraulic unit, do not use oil

or grease as lubricant but exclusively

Molykote 111.

30. CLEANING THE COLD WATER FILTER

0606_

2703/CG_

1839flow sensing securing nut

Figure 19DHW heat exchanger securing screws

5/20/2018 ECO 280 FI.pdf

22/212


31. BOILER SCHEMATIC

240 Fi - 280 Fi

Figure 20

Key:

1 DHW NTC priority sensor 2 automatic by-pass 3 water pressure switch 4 three way valve

5 DHW NTC sensor 6 flow sensor with filter and water flow rate limiter 7 3-way valve motor 8 gas valve 9 ignition electrode10 central heating NTC sensor11 overheat safety thermostat

12 flue-water exchanger13 flue hood14 fan

heating domestic gas domestic heatinginlet water outlet water inlet return

15 air pressure switch16 positive pressure point17 negative pressure point18 flame detector electrode19 main burner20 burner injectors21 expansion vessel22 plate heat exchanger (D.H.W.)23 automatic air vent24 pump and air separator25 filling the system

26 boiler drain point27 manometer28 pressure relief valve

SEALED CHAMBER

0509_

2604/CG

1646

0606_2701

280 Fi

5/20/2018 ECO 280 FI.pdf

23/212


Key:

1 DHW NTC priority sensor 2 automatic by-pass 3 water pressure switch 4 three way valve

5 DHW NTC sensor 6 flow sensor with filter and water flow rate limiter 7 3-way valve motor 8 gas valve 9 ignition electrode10 central heating NTC sensor11 overheat safety thermostat

12 flue-water exchanger13 flue hood

14 flue thermostat15 flame detector electrode16 main burner17 burner injectors18 expansion vessel19 plate heat exchanger (D.H.W.)20 automatic air vent21 pump and air separator22 filling the system23 boiler drain point24 manometer

25 pressure relief valve

240 i

Figure 21

0503_

0916/CG1647

heating domestic gas domestic heatinginlet water outlet water inlet return

5/20/2018 ECO 280 FI.pdf

24/212


Key:

1 water pressure switch 2 automatic bypass

3 gas valve 4 ignition electrode 5 central heating NTC sensor 6 overheat safety thermostat 7 flue-water exchanger 8 flue hood 9 fan10 air pressure switch11 positive pressure point (Not featured on 1.140 Fi)

12 negative pressure point13 flame detector electrode14 main burner15 burner injectors16 expansion vessel17 automatic air vent18 pump and air separator19 boiler drain point20 manometer21 pressure relief valve

1.240 Fi

Figure 22

heating gas domestic heatinginlet water inlet return

SEALED CHAMBER

0509_

2605/CG1654

5/20/2018 ECO 280 FI.pdf

25/212


Key:

1 water pressure switch

2 automatic bypass3 gas valve

4 ignition electrode

5 central heating NTC sensor

6 overheat safety thermostat

7 flue-water exchanger 8 flue hood

9 flue thermostat

10 flame detector electrode

11 main burner

12 burner injectors

13 expansion vessel14 automatic air vent

15 pump and air separator

16 boiler drain point

17 manometer

18 pressure relief valve

1.240 i

Figure 23

0510_

0403/CG1655

heating gas domestic heating inlet water inlet return

5/20/2018 ECO 280 FI.pdf

26/212


32. ILLUSTRATED WIRING DIAGRAM

240 Fi - 280 Fi

CABLES COLOURS

C= light blueM= brownN= blackR= redG/V=yellow/greenB= whiteV= green

KEY

P2: DHW potentiometerP3: S/W/OFF selectorP4: Central heating potentiometerP5: Heating power regulation trimmer

0711_

2211/CG_

1801_

1

FAN

PUMP

FEEDING

TERMINAL BLOCK

FEEDINGPOWER

GRID

ROOM

THERMOSTAT

IGNITIONELECTRODE

FLAMESENSING

ELECTRODE

SAFETY

THERMOSTAT

AIR PRESSURE

SWITCH

WATER PRESSURE

SWITCH

CENTRAL HEATING

NTC SENSOR

DHW NTC

SENSOR

DHWPRIORITY SENSOR

3-WAY VALVE

FUSE

CONNECTION FOREXTERNAL SENSOR

PROBE

5/20/2018 ECO 280 FI.pdf

27/212


240 i

0803_

1006/CG_

1802_

2

CABLES COLOURS


KEY

P2: DHW potentiometerP3: S/W/OFF selectorP4: Central heating potentiometerP5: Heating power regulation trimmer

PUMP

FEEDING

TERMINAL BLOCK

IGNITIONELECTRODE

FLAMESENSING

ELECTRODE

SAFETY

THERMOSTAT

FLUETHERMOSTAT

WATER PRESSURE

SWITCH

CENTRAL HEATING

NTC SENSOR

DHW NTC

SENSOR

DHWPRIORITY SENSOR

3-WAY VALVE

FUSE

CONNECTION FOR

EXTERNAL SENSORPROBE

FEEDINGPOWER

GRID

ROOM

THERMOSTAT

5/20/2018 ECO 280 FI.pdf

28/212


1.240 Fi

KEY

P2: DHW potentiometerP3: S/W/OFF selectorP4: Central heating potentiometerP5: Heating power regulation trimmerRB: Resistor, to be removed if an

external boiler is connected

CABLES COLOURS


FAN

PUMP

FEEDING

TERMINAL BLOCK

IGNITIONELECTRODE

FLAMESENSING

ELECTRODE

SAFETY

THERMOSTAT

AIR PRESSURE

SWITCH

WATER PRESSURE

SWITCH

CENTRAL HEATING

NTC SENSOR

FUSE

0711_

2213/CG_

1981

Jumper CN7to be jumpered


PROBE

FEEDINGPOWER

GRID

ROOM

THERMOSTAT

5/20/2018 ECO 280 FI.pdf

29/212


1.240 i

KEY

P2: DHW potentiometerP3: S/W/OFF selectorP4: Central heating potentiometerP5: Heating power regulation trimmerRB: Resistor, to be removed if an

external boiler is connected

CABLES COLOURS


PUMP

FEEDING

TERMINAL BLOCK

IGNITIONELECTRODE

FLAMESENSING

ELECTRODE

SAFETY

THERMOSTATWATER PRESSURE

SWITCH

CENTRAL HEATING

NTC SENSOR

FUSE

Jumper CN7to be jumpered

0711_

2214/CG_

1982

FLUE

THERMOSTAT


PROBE

FEEDINGPOWER

GRID

ROOM

THERMOSTAT

5/20/2018 ECO 280 FI.pdf

30/212


33. TECHNICAL DATA

Model ECO3 240 Fi 1.240 Fi 280 Fi 240 i 1.240 i

Category II2H3P

II2H3P

II2H3P

II2H3P

II2H3P

Maximum heat input kW 25,8 25,8 30,1 26,3 26,3

Reduced heat input kW 10,6 10,6 11,9 10,6 10,6

Maximum heat output kW 24 24 28 24 24

kcal/h 20.600 20.600 24.080 20.600 20.600Reduced heat output kW 9,3 9,3 10,4 9,3 9,3

kcal/h 8.000 8.000 8.900 8.000 8.000

Useful efficiency according to 92/42/CEE directive

Central heating system max. pressure bar 3 3 3 3 3

Expansion vessel capacity l 8 8 10 8 8

Expansion vessel pressure bar 0,5 0,5 0,5 0,5 0,5

DHW system max. pressure bar 8 - 8 8 -

DHW system min. dynamic pressure bar 0,5 - 0,5 0,5 -

DHW system min. output l/min 2 - 2 2 -

DHW production at T=25C l/min 13,7 - 16 13,7 -

DHW production at T=35C l/min 9,8 - 11,4 9,8 -

Specific output (*) l/min 10,7 - 12,5 10,7 -Type C12-C32-C42-C52-C82-B22

B

11BSB

11BS

Concentric flue duct diameter mm 60 60 60 - -

Concentric air duct diameter mm 100 100 100 - -

2-pipe flue duct diameter mm 80 80 80 - -

2-pipe air duct diameter mm 80 80 80 - -

Discharge pipe diameter mm - - - 120 120

Max. flue mass flow rate kg/s 0,017 0,017 0,018 0,020 0,020

Min. flue mass flow rate kg/s 0,017 0,017 0,019 0,018 0,018

Max. flue temperature C 135 135 129 110 110

Min. flue temperature C 100 100 110 85 85

NOx Classe 3 3 3 3 3

Type of gas used G20 G20 G20 G20 G20 G31 G31 G31 G31 G31

Natural gas feeding pressure mbar 20 20 20 20 20

Propane gas feeding pressure mbar 37 37 37 37 37

Power supply voltage V 230 230 230 230 230

Power supply frequency Hz 50 50 50 50 50

Power consumption W 135 135 165 80 80

Net weight kg 38 32 40 33 28

Dimensions height mm 763 763 763 763 763

width mm 450 450 450 450 450

depth mm 345 345 345 345 345Protection-limit against humidity

and water leakages (**) IP X5D IP X5D IP X5D IP X5D IP X5D

(*) according to EN 625

(**) according to EN 60529

5/20/2018 ECO 280 FI.pdf

31/212

31924.674.2 - ESINSTRUCCIONES PARA EL USUARIO

5/20/2018 ECO 280 FI.pdf

32/212


Apreciado cliente:La caldera que Vd. ha adquirido posee las caractersticas ms avanzadas que ofrece elmercado en este sector.Los productos BAXIson garanta de altas prestaciones y facilidad de uso.Conserve estas instrucciones y lalas atentamente, puesto que contienen informacionestiles para el uso correcto de la caldera.

BAXIS.p.A. declara que estas calderas llevan el marcado CE por cumplir los requisitosesenciales de las siguientes Directivas:- Directiva gas 90/396/CEE- Directiva Rendimientos 92/42/CEE- Directiva Compatibilidad electromagntica 89/336/CEE- Directiva baja tensin 2006/95/CE

Los elementos de embalaje (bolsas de plstico, poliestireno) son fuentes potenciales de peligro: no los dejeal alcance de los nios.

1.Advertencias antes de la instalacin 332.Advertencias antes de la puesta en marcha 333. Puesta en marcha de la caldera 344. Regulacin de la temperatura del agua sanitaria 345. Regulacin de la temperatura ambiente 356. Llenado de la instalacin 357.Apagado de la caldera 358.Adaptacin a otro tipo de gas 359. Inactividad prolongada de la instalacin Proteccin contra heladas (circuito de calefaccin) 3610. Indicaciones y actuacin de los dispositivos de seguridad 3611. Instrucciones para el mantenimiento ordinario 36

12.Advertencias generales 3713.Advertencias antes de la instalacin 3714. Instalacin de la caldera 3815. Dimensiones de la caldera 38

16. Instalacin de los conductos de entrada de aire y salida de humos 3917. Conexin elctrica 4318. Conexin del termostato de ambiente 4319.Adaptacin a otro tipo de gas 4420. Visualizacin de los parmetros de la tarjeta electrnica en el display de la caldera (funcin info) 4621. Dispositivos de regulacin y seguridad 4722. Regulaciones en la tarjeta electrnica 4823. Ubicacin del electrodo de encendido y deteccin de llama 4824. Control de los parmetros de combustin 4825. Curvas de caudal / altura manomtrica en la placa 4926. Conexin de la sonda exterior 4927. Conexin de un calentador exterior 5028. Limpieza del circuito sanitario 5129. Desmontaje del intercambiador agua-agua 5130. Limpieza del filtro de agua fra 5131. Esquema funcional de los circuitos 52-5532. Esquema de conexin de los conectores 56-5933. Caractersticas tcnicas 60

INDICE

INSTRUCCIONES PARA EL USUARIO

INSTRUCCIONES PARA EL INSTALADOR

5/20/2018 ECO 280 FI.pdf

33/212


Esta caldera sirve para calentar agua a una temperatura inferior a la de ebullicin, a presin atmosfrica. Debe conectarsea una instalacin de calefaccin y a una red de distribucin de agua caliente sanitaria, dentro de los lmites de susprestaciones y de su potencia.Antes de que la caldera sea conectada por un tcnico calificado es preciso:

a) Controlar que la caldera est preparada para funcionar con el tipo de gas disponible. El tipo de gas se indica en el

embalaje y en la placa de datos del aparato.

b) Controlar que la chimenea tenga buen tiro, que no tenga estrangulamientos y no desemboquen en ella las salidas deotros aparatos, salvo que haya sido realizada para este fin conforme a la reglamentacin vigente.

c) Si la caldera se conecta a una chimenea preexistente, controlar que sta se haya limpiado perfectamente, ya que eldesprendimiento de los depsitos durante el funcionamiento puede obstruir la salida de humos.

d) Para mantener el funcionamiento correcto y la garanta del aparato, tambin es imprescindible respetar las siguientesindicaciones:

1. Circuito sanitario:

1.1. Si la dureza del agua es superior a 20F (1F = 10 mg de carbonato de calcio por l itro de agua) es preciso instalarun dosificador de polifosfatos o un sistema similar, conforme a las normas vigentes.

1.2. Una vez montado el aparato, antes de utilizarlo es necesario hacer una limpieza a fondo de la instalacin.

2. Circuito de calefaccin

2.1. Instalacin nueva Antes de montar la caldera, hay que limpiar la instalacin para eliminar los residuos de roscados, soldaduras y

disolventes, utilizando un producto comercial que no sea ni cido ni alcalino, y que tampoco ataque los metales,el plstico y la goma. Se recomiendan los siguientes productos de limpieza:

SENTINEL X300 o X400 y FERNOX Regenerador para instalaciones de calefaccin Para el uso de estos productos,siga atentamente las instrucciones del respectivo fabricante.

2.2. Instalacin existente: Antes de instalar la caldera, vace totalmente la instalacin y lmpiela de lodos y contaminantes con los productos

comerciales citados en el punto 2.1. Para evitar que se formen incrustaciones en la instalacin, utilice un inhibidor como SENTINEL X100 o FERNOX

Protector para instalaciones de calefaccin. Para el uso de estos productos, siga atentamente las instruccionesdel respectivo fabricante.

Se recuerda que los depsitos en la instalacin de calefaccin perjudican el funcionamiento de la caldera, causandosobrecalentamiento y ruido del intercambiador.

La inobservancia de estas indicaciones invalida la garanta del aparato .

1. ADVERTENCIAS ANTES DE LA INSTALACIN

El primer encendido debe ser realizado por un Centro de Asistencia Tcnica autorizado, que ha de verificar:a) Que los suministros (electricidad, agua y gas) tengan los valores indicados en la placa de datos.b) Que la instalacin cumpla las normas vigentes citados en el manual tcnico del instalador.c) Que la conexin elctrica y la descarga a tierra se hayan realizado correctamente.En la hoja adjunta se detallan los Centros de Asistencia Tcnica autorizados por el fabricante.La inobservancia de estas indicaciones invalida la garanta del aparato.Antes de poner la caldera en funcionamiento, qutele la pelcula protectora. Para ello, no utilice herramientas o materialesabrasivos, ya que podran arruinar la pintura.

2. ADVERTENCIAS ANTES DE LA PUESTA EN MARCHA

5/20/2018 ECO 280 FI.pdf

34/212


Para encender la caldera, proceda del siguiente modo:

1) conecte la caldera a la corriente elctrica;2) abra la llave de paso del gas;3) gire el selector a la posicin Verano ( ) o Invierno ( ) (figura 2);4) gire los reguladores de temperatura del circuito de calefaccin (2) y del agua caliente sanitaria (1) para encender el quemador principal.

Gire el mando en el sentido de las agujas del reloj para aumentar la temperatura, y al revs para disminuirla. Cuando la caldera est en la posicin Verano ( ), el quemador principal se enciende slo cuando se extrae agua caliente sanitaria.

3. PUESTA EN MARCHA DE LA CALDERA

LEYENDA:

Funcionamiento en calefaccin

Presencia de llama(quemador encendido)

Prdida de llama(no se enciende)

Funcionamiento en sanitario

Anomala genrica

Falta de agua(Presin instalacin baja)

Indicacin numrica(Temperatura, cd. anomala, etc.)

RESET

Figura 20503_

1109/CG1659

Reset = Rearme Invierno OFF = Apagado Verano

Posiciones selector Verano / Invierno / Rearme / Apagado

Advertencia: Durante la primera puestaen marcha, es posible que el quemadorno se encienda (y se bloquee la caldera)hasta que salga todo el aire de la tuberadel gas.En este caso, se aconseja repetir la

operacin de encendido hasta que lleguegas al quemador, ubicando el selector enla posicin ( - REARMAR) durante dossegundos como mnimo.

4. REGULACIN DE LA TEMPERATURA DEL AGUA SANITARIA

La vlvula del gas est dotada de un dispositivo electrnico que modula la llama de acuerdo con la cantidad de aguaextrada y la posicin del mando (1) de regulacin de temperatura del agua sanitaria.

Este dispositivo electrnico permite que la caldera suministre agua a la temperatura deseada incluso desde las primerasgotas.Durante la extraccin, en el display aparece la temperatura del agua sanitaria.Gire el mando en el sentido de las agujas del reloj para aumentar la temperatura, y al revs para disminuirla.

Figura 1

1

2

3

4

Mando SANITARIO (A.C.S.)

Mando CALEFACCIN(C.H.)

Selector (figura 2)

Display

0605_2201 / CG_1805

5/20/2018 ECO 280 FI.pdf

35/212


5. REGULACIN DE LA TEMPERATURA AMBIENTE

La instalacin debe estar dotada de un termostato de ambiente para controlar la temperatura en el local.En caso de falta transitoria del termostato de ambiente, en el primer encendido es posible ajustar la temperatura ambientecon el mando (2).Durante el funcionamiento en calefaccin, en el display aparece la temperatura de salida a la instalacin.Gire el mando en el sentido de las agujas del reloj para aumentar la temperatura, y al revs para disminuirla. La modulacinelectrnica de la llama permite que la caldera alcance la temperatura programada enviando al quemador la cantidad de

gas necesaria para las condiciones reales de intercambio trmico.

Importante: controle peridicamente que la presin leda en el manmetro, con la instalacin fra, est entre 0,7 y 1,5 bar.En caso de sobrepresin, abra el grifo de descarga de la caldera; si la presin es demasiado baja, abra el grifo de carga(figura 3).Se aconseja abrir dicho grifo muy lentamente para facilitar la salida del aire.Durante esta operacin, el selector Verano/Invierno de la figura 2 tiene que estar en la posicin Apagado (0).

NOTA: si la presin baja con frecuencia, llame a un Centro de Asistencia Tcnica autorizado.

6. LLENADO DE LA INSTALACIN

La caldera est dotada de un presostato hi-drulico que, en caso de falta de agua, impideel funcionamiento de la caldera.

Grifo de carga

Para apagar la caldera, desconctela de la corriente elctrica. Cuando el selector de la figura 2 est en la posicin 0, lacaldera est apagada (en pantalla aparece la indicacin OFF), pero los circuitos elctricos quedan en tensin y la funcinantihielo est activada (vea el apartado 9).

NOTA: si el selector est en la posicin 0 y la sonda exterior est conectada, en pantalla aparece la temperaturaexterior (C).

7. APAGADO DE LA CALDERA

8. ADAPTACIN A OTRO TIPO DE GAS

Las calderas pueden funcionar con metano o GLP.Si hace falta convertir la caldera para utilizarla con otro gas, llame a un Centro de Asistencia Tcnica autorizado.

Figura 3

0603_

1302/CG_

1791

Grifo de descarga

Manometro

5/20/2018 ECO 280 FI.pdf

36/212


10. INDICACIONES Y ACTUACIN DE LOS DISPOSITIVOS DE SEGURIDAD

Es conveniente vaciar toda la instalacin de calefaccin, porque los recambios de agua producen depsitos de cal (intilesy perjudiciales) en el interior de la caldera y de los elementos de caldeo. Si en invierno la instalacin no se utiliza y haypeligro de heladas, se aconseja aadir al agua del circuito una solucin anticongelante especfica, por ejemplo propilenglicolmezclado con inhibidores de incrustaciones y corrosin.El control electrnico de la caldera incluye una funcin antihielo que acta en calefaccin: cuando la temperatura delagua de salida es inferior a 5C, el quemador se enciende hasta que el agua llega a 30C.

Esta funcin se activa si:* la caldera est conectada a la corriente elctrica;* hay paso de gas;* la instalacin tiene la presin indicada;* la caldera no est bloqueada.

9. INACTIVIDAD PROLONGADA DE LA INSTALACIN. PROTECCIN CONTRA HELADAS

Para rearmar la caldera, ponga el selector de la figura2 en R durante al menos dos segundos. Si este

dispositivo acta repetidamente, llame a un Centro deAsistencia autorizado.

Nota: Es posible realizar cinco intentos consecutivosde rearme, tras lo cual la caldera se bloquea.

Para intentar otro rearme, ponga el selector dela figura 2 en la posicin de Apagado durantealgunos segundos.

CDIGOVISUALIZADO

NOTA: en caso de anomala, la retroiluminacin de la pantalla parpadea en sincrona con el cdigo de error visualizado.

Para garantizar un funcionamiento correcto y seguro de la caldera, al final de cada temporada es necesario hacerla revisarpor un Centro de Asistencia Tcnica autorizado.

Un mantenimiento correcto favorece la economa de uso de la instalacin.No limpie el exterior del aparato con sustancias abrasivas, agresivas o fcilmente inflamables (gasolina, alcohol, etc.).Antes de realizar la limpieza, apague el aparato (vea el captulo 7 Apagado de la caldera).

11. INSTRUCCIONES PARA EL MANTENIMIENTO ORDINARIO

Las anomalas se indican en pantalla mediante un cdigo de error (ej. E 01).

E35

E25

E10

E06E05E03

E02

E01

ANOMALA

Bloqueo - no se enciende

Bloqueo por actuacin termostato seguridad

Actuacin termostato humos / presostato humosFallo sonda de salidaFallo sonda sanitario

El presostato hidrulico no imparte lahabilitacin.

Actuacin del dispositivo de seguridad porprobable bloqueo de la bomba.

Llama parsita (error llama)

ACTUACIN

Ponga el selector de la figura 2 en R durante al menos dossegundos. Si este dispositivo acta repetidamente, llame a unCentro de Asistencia autorizado.Ponga el selector de la figura 2 en R durante al menos dossegundos. Si este dispositivo acta repetidamente, llame a unCentro de Asistencia autorizado.Llame a un centro de asistencia autorizado.Llame a un centro de asistencia autorizado.Llame a un centro de asistencia autorizado.Controle que la presin de la instalacin tenga el valor indicado.

Apartado 6 Si la anomala persiste, llame a un centro de asistenciaautorizado.

Llame a un centro de asistencia autorizado.

Ponga el selector de la figura 2 en R durante al menos dossegundos. Si este dispositivo acta repetidamente, llame a unCentro de Asistencia autorizado.

Figura 4

0607_

1205

AnomalasREARMABLES

5/20/2018 ECO 280 FI.pdf

37/212

37924.674.2 - ESINSTRUCCIONES PARA EL INSTALADOR

Esta caldera sirve para calentar agua a una temperatura inferior a la de ebullicin, a presin atmosfrica. Debe conectarsea una instalacin de calefaccin y a una red de distribucin de agua caliente sanitaria dentro de los lmites de susprestaciones y de su potencia.Antes de conectar la caldera, es indispensable:

a) Controlar que la caldera est preparada para funcionar con el tipo de gas disponible. El tipo de gas se indica en elembalaje y en la placa de datos del aparato.

b) Controlar que la chimenea tenga buen tiro, que no tenga estrangulamientos y no desemboquen en ella las salidas deotros aparatos, salvo que haya sido realizada para este fin conforme a la reglamentacin vigente.

c) Si la caldera se conecta a una chimenea preexistente, controlar que sta se haya limpiado perfectamente, ya que eldesprendimiento de los depsitos durante el funcionamiento puede obstruir la salida de humos.

Para mantener el funcionamiento correcto y la garanta del aparato, tambin es imprescindible respetar las siguientesindicaciones:

1. Circuito sanitario:

1.1. Si la dureza del agua es superior a 20F (1F = 10 mg de carbonato de calcio por l itro de agua) es preciso instalarun dosificador de polifosfatos o un sistema similar, conforme a las normas vigentes.

1.2. Una vez montado el aparato, antes de utilizarlo es necesario hacer una limpieza a fondo de la instalacin.

2. Circuito de calefaccin

2.1. Instalacin nueva Antes de montar la caldera, hay que limpiar la instalacin para eliminar los residuos de roscados, soldaduras y

disolventes, utilizando un producto comercial que no sea ni cido ni alcalino, y que tampoco ataque los metales,el plstico y la goma. Se recomiendan los siguientes productos de limpieza:

SENTINEL X300 o X400 y FERNOX Regenerador para instalaciones de calefaccin Para el uso de estos productos,siga atentamente las instrucciones del respectivo fabricante.

2.2. Instalacin existente: Antes de instalar la caldera, vace totalmente la instalacin y lmpiela de lodos y contaminantes con los productos

comerciales citados en el punto 2.1. Para evitar que se formen incrustaciones en la instalacin, utilice un inhibidor como SENTINEL X100 o FERNOX

Protector para instalaciones de calefaccin. Para el uso de estos productos, siga atentamente las instrucciones

del respectivo fabricante. Se recuerda que los depsitos en la instalacin de calefaccin perjudican el funcionamiento de la caldera, causandosobrecalentamiento y ruido del intercambiador.

La inobservancia de estas indicaciones invalida la garanta del aparato .

Atencin:cuando el selector de la figura 2 est en la posicin Invierno ( ), cada vez que acta el dispositivo de regulacinde la calefaccin (2-figura 1) hay que esperar unos minutos para que la caldera se vuelva a encender.Dicha espera no se produce en el caso del agua sanitaria.Para encender la caldera inmediatamente, ponga el selector de la figura 2 en la posicin 0 y otra vez en ( ).

Las notas e instrucciones tcnicas siguientes estn destinadas al instalador como gua para la instalacin del aparato. Lasinstrucciones sobre el encendido y el empleo de la caldera se encuentran en la parte destinada al usuario.El proyecto, la instalacin y el mantenimiento de las instalaciones es competencia exclusiva de personal cualificado y deberser realizado de acuerdo con el vigente Reglamento de Calefaccin, Climatizacin y Agua Caliente Sanitaria e InstruccionesTcnicas Complementarias (IT.IC.).Adems de lo arriba mencionado se debe tener presente que: La caldera puede utilizarse con cualquier tipo de placa radiante, radiador o termoconvector, alimentados por uno o dos

tubos. Las secciones del circuito deben calcularse para cada caso con los mtodos habituales, teniendo en cuenta lacurva caudal/altura manomtrica relativa a la placa e indicada en el apartado 25.

Los elementos de embalaje (bolsas de plstico, poliestireno) son fuentes potenciales de peligro: no los deje al alcancede los nios.

El primer encendido debe ser realizado por un Centro de Asistencia Tcnica autorizado (vea la lista en la hoja adjunta).La inobservancia de estas indicaciones invalida la garanta del aparato.

12. ADVERTENCIAS GENERALES

13. ADVERTENCIAS ANTES DE LA INSTALACIN

5/20/2018 ECO 280 FI.pdf

38/212


14. INSTALACIN DE LA CALDERA

Una vez determinada la ubicacin exacta de la caldera, fije la plantilla a la pared.Comience por las conexiones de agua y gas marcadas en el listn inferior de la plantilla. Se aconseja instalar en el circuitode calefaccin dos llaves de paso G3/4 (salida y retorno), disponibles bajo demanda, para poder realizar trabajos endeterminadas partes sin tener que vaciar todo el circuito. En el caso de instalaciones ya existentes, para sustituir algunaspiezas se aconseja, adems de lo citado, montar en el retorno a la caldera, en la parte inferior, un depsito de decantacinpara recoger los residuos que quedan despus del lavado y que con el tiempo pueden ponerse en circulacin. Despus

de fijar la caldera a la pared, conecte los conductos de salida y entrada, que se suministran como accesorios, como sedescribe a continuacin.En el caso de la caldera con tiro natural modelo 240 i, realice la conexin a la chimenea mediante un tubo metlicoresistente a las solicitaciones mecnicas normales, al calor y a la accin de los productos de la combustin y de suseventuales condensados.

15. MEDIDAS DE LA CALDERA

Figura 6

240 i - 1. 240 i 240 Fi - 280 Fi - 1. 240 Fi

min

imo

0606_

2602

0606_

2603

Figura 5

= ANCHURA CALDERA 450 =

PUNTO DE ENGANCHE CALDERA

ALTURACALDERA780

: salida/retornocircuito de calefaccinG 3/4

: salida/entradaagua caliente sanitariaG 1/2 : entrada gas en la calderaG 3/4

0512_

0504/CG1769

0512_0505/CG1769

0710_2501 / CG1769

: salida/retorno circuito de calefaccin G 3/4

: Llenado de la instalacin G 1/2

: entrada gas en la caldera G 3/4

240 i - 240 Fi1.240 i - 1.240 Fi

5/20/2018 ECO 280 FI.pdf

39/212


16. INSTALACIN DE LOS CONDUCTOS DE ENTRADA Y SALIDA

Modelo 240 Fi - 280 Fi - 1. 240 Fi

La instalacin de la caldera es muy sencilla graciasa los accesorios suministrados, que se describen acontinuacin.La caldera se entrega preparada para la conexin a unconducto de salida de humos-entrada de aire de tipocoaxial, vertical u horizontal. Mediante el accesorio divisor,tambin es posible utilizar conductos separados.Para la instalacin, emplee exclusivamente losaccesorios suministrados por el fabricante.

Figura 7

0503_

0905/CG1638

Figura 8

CONDUCTO DE AIRE/SALIDA DE GASES COAXIAL (CONCNTRICO)

Este tipo de conducto permite expulsar el gas de escape y evacuar el aire de combustin fuera del edificio y si se hainstalado una salida de gases LAS.El codo coaxial de 90 permite conectar la caldera a un conducto de aire/salida de gases en cualquier direccin y puedegirar 360. Asimismo, es posible utilizar un codo suplementario y acoplarlo a un conducto coaxial o a codo de 45.

0511_

2701/CG1750 Si la salida de gases se encuentra en el exterior, el conducto

de aire/salida de gases debe sobresalir 18 mm como mnimode la pared para que la cubierta de tejas de aluminio puedafijarse y sellarse con el fin de evitar fugas de agua.Asegrese de dejar una pendiente descendente de 1 cmcomo mnimo hacia el exterior por cada metro de longitud

del conducto.

Un codo de 90 reduce la longitud total del conductoen 1 metros.

Un codo de 90 reduce la longitud total del conductoen 0,5 metros.

El primer codo de 90 no se incluye en la longitud mximadisponible.

Junta de fijacin

Unin concntrica

AB

Modelo de

caldera

240 Fi

1.240 Fi

280 Fi

0 1

1 2

2 5

0 1

1 2

2 4

Longitud (m)

Succin de aire

RESTRICTORB

S

No

No

S

No

Salida de gases

RESTRICTORA

S

No

No

S

No

No

5/20/2018 ECO 280 FI.pdf

40/212


0503_

0906/CG1639

16.1 EJEMPLOS DE INSTALACIN CON CONDUCTOS HORIZONTALES

0503_

0907/CG1640

16.2 EJEMPLOS DE INSTALACIN CON CHIMENEAS COMPARTIDAS

16.3 EJEMPLOS DE INSTALACIN CON CONDUCTOS VERTICALES

La instalacin puede realizarse con el techo inclinado u horizontal, utilizando el accesorio chimenea y la teja con fundaque se suministra bajo demanda.

0503_

0908/CG1641

L max = 5 m 240 Fi - 1. 240 Fi 60/100 mm - 9 m 80/120 mmL max = 4 m 280 Fi 60/100 mm - 8 m 80/120 mm

L max = 4 m 60/100 mmL max = 10 m 80/120 mm

L max = 2 m 60/100 mmL max = 8 m 80/120 mm

L max = 3 m 60/100 mmL max = 9 m 80/120 mm



5/20/2018 ECO 280 FI.pdf

41/212


CONDUCTO DE AIRE/SALIDA DE GASES INDEPENDIENTE

Este tipo de conducto permite expulsar los gases de escape fuera del edificio e introducirlos en conductos de salida de gases sencil-los.El aire de combustin puede evacuarse en una ubicacin diferente del punto donde est situado el terminal de salida de gases.El kit de separacin se compone de un adaptador para conducto de salida de gases (100/80) y de un adaptador para conducto deaire.En el adaptador para conducto de aire, instale los tornillos y juntas previamente extrados de la tapa.

El restrictor debe extraerse en los siguientes casos

Figura 9

El codo de 90 permite conectar la caldera a un conducto de aire/salida de gases en cualquier direccin y puede girar360. Asimismo, es posible utilizar un codo suplementario y acoplarlo al conducto o a un codo de 45.

Un codo de 90 reduce la longitud total del conducto en 0,5 metros.

Un codo de 45 reduce la longitud total del conducto en 0,25 metros.

0604/2301/CG17

76

El primer codo de 90 no se incluye en la longitud mxima disponible.

Ajuste del control de aire/salida degases dividido

El ajuste de este control debe realizarsepara optimizar los parmetros de rendi-miento y combustin. El acoplamientode succin de aire puede girarse paraajustar el exceso de aire de acuerdocon la longitud total de los conductosde entrada y salida de gases del aire decombustin.Gire este control para aumentar o re-ducir el exceso de aire de combustin

(figura 9):

Para mejorar la optimizacin, puedeutilizarse un analizador de productosde combustin con el fin de medir elcontenido de CO

2de la salida de gases a

temperatura mxima ajustando gradual-mente el aire para obtener la lectura deCO

2de la tabla siguiente, si el anlisis

muestra un valor inferior.Para instalar este dispositivo correcta-mente, consulte tambin los datostcnicos que se suministran con laconexin.

Adaptador paraconducto de salida

de gases

Junta

Ajuste del acoplamien-to de succin de aire

Indicador

Apertura

Modelo de

caldera

240 Fi

1.240 Fi

280 Fi

0 4

4 15

15 25

25 40

0 2

2 8

8 25

(L1+L2)Posicin del

acoplamiento

3

1

2

3

1

2

3

Salida de gasesRESTRICTOR

A

S

No

No

Porcentaje deCO2

G20

6,4

7,4

G31

7,3

8,4

5/20/2018 ECO 280 FI.pdf

42/212


(L1 + L2) max = 40 m 240 Fi - 1.240 Fi(L1 + L2) max = 25 m 280 FiL max = 10 m 240 Fi - 1.240 FiL max = 8 m 280 Fi

0503_

2201/CG1643

16.5 OPCIONES DE INSTALACIN DE TERMINALES DE SALIDA DE GASES HORIZONTALES INDEPENDIENTES

IMPORTANTE: Asegrese de dejar una pendiente descendente de 1 cm como mnimo hacia el exterior por cada metrode longitud del conducto. En caso de instalar el kit de recogida de condensacin, el ngulo del conducto de drenaje debeorientarse directamente a la caldera.

Nota: En los tipos C52, los terminales de succin de aire de combustin y de extraccin de productos de combustinnunca deben instalarse en paredes opuestas del edificio.La longitud mxima del conducto de succin debe ascender a 10 metros.

Si el conducto de salida de gases mide ms de 6 m, el kit de recogida de condensacin (suministrado como accesorio)debe instalarse cerca de la caldera.

16.4 DIMENSIONES GENERALES DE LA SALIDA DE GASES DIVIDIDA

0504_

1806/CG_

1794

0503_

0911/CG1644

L max = 15 m 240 FiL max = 12 m 280 Fi

L max = 14 m 240 FiL max = 10 m 280 Fi

16.6 OPCIONES DE INSTALACIN DE TERMINALES DE SALIDA DE GASES VERTICALES INDEPENDIENTES

5/20/2018 ECO 280 FI.pdf

43/212


17. CONEXIN ELCTRICA

La seguridad elctrica del aparato slo puede garantizarse si ste se conecta a una descarga a tierra eficaz, realizada conarreglo a las normas de seguridad sobre instalaciones.La caldera debe conectarse a una red elctrica de 230 V monofsica + tierra, mediante el cable de tres hilos que se entregay respetando la polaridad LNEA - NEUTRO.En la lnea debe haber un interruptor bipolar con apertura de los contactos no inferior a 3 mm.Para sustituir el cable de alimentacin, utilice un cable homologado HAR H05 VV-F de 3x0,75 mm2 con dimetro de 8

mm cmo mximo.

Acceso a la bornera de alimentacin

desconecte la caldera de la corriente elctrica mediante el interruptor bipolar; desenrosque los dos tornillos que fijan el panel de mandos a la caldera; gire el panel de mandos; quite la tapa para acceder a la zona de las conexiones elctricas (figura 10).

El fusible (rpido de 2 A) est en la bornera de alimentacin: extraiga el portafusibles negro para realizar el control o lasustitucin.

IMPORTANTE: respete la polaridad elctrica L (LNEA) - N (NEUTRO)

(L) = Lnea (marrn)(N) = Neutro (celeste)( ) = Tierra (amarillo-verde)(1) (2) = Contacto para el termostato de ambiente

18. CONEXIN DEL TERMOSTATO DE AMBIENTE

acceda a la bornera de alimentacin (figura 10) como se describe en el captulo anterior; quite el puente entre los bornes (1) y (2); introduzca el cable de dos hilos por el pasacables y conctelo a estos dos bornes.

Figura 10

0607_

2301/CG_

1806

bornera dealimentacinM1

5/20/2018 ECO 280 FI.pdf

44/212


La caldera puede modificarse para funcionar con gas metano (G. 20) o gas lquido (G. 31). Esta operacin debe ser realizadapor un Centro de Asistencia Tcnica autorizado.

19. ADAPTACIN A OTROS TIPOS DE GAS

Figura 12

Vlvula SITmod. SIGMA 845

Vlvula Honeywellmod. VK 4105 M

9912221500

Pc

Pb

Pa

0207_

040

6

Las calibraciones del regulador de presin son ligeramentediferentes segn el tipo de vlvula del gas utilizada(HONEYWELL o SIT, figura 12).

Realice las operaciones siguientes, en este orden:

A) sustituya los inyectores del quemador principal;B) cambie la tensin del modulador;C) calibre el mximo y el mnimo del regulador depresin.

A) Sustitucin de los inyectores

Extraiga con cuidado el quemador principal. Cambie los inyectores del quemador principal y bloquee

los nuevos a tope para evitar que haya fugas de gas. El

dimetro de los inyectores se indica en la tabla 2.

B) Cambio de tensin del modulador

Quite los dos tornillos que fijan la tapa del panel demandos y gire el panel hacia arriba.

Coloque el puente o el interruptor, segn el tipo de gasutilizado, como se describe en el captulo 22.

C) Calibracin del regulador de presin

Conecte la toma de presin positiva de un manmetrodiferencial, si es posible de agua, en la toma de presin

(Pb) de la vlvula del gas (Figura 12). Slo en los mo-delos con cmara estanca: conecte la toma negativadel mismo manmetro a una T que permita conectar almismo tiempo la toma de compensacin de la caldera,la toma de compensacin de la vlvula del gas (Pc) yel manmetro. Una medicin similar puede realizarseconectando el manmetro a la toma de presin (Pb) sinel panel frontal de la cmara estanca.

Cualquier otro mtodo utilizado para medir la presin enlos quemadores podra dar resultados falsos, ya que notomara en cuenta la depresin creada por el ventiladoren la cmara estanca.

C1) Regulacin a la potencia nominal: Abra la llave de paso del gas y gire el mando de la caldera

a la posicin Invierno ( ) (Figura 2); Abra el grifo de salida de agua sanitaria con un caudal

de 10 l/min como mnimo, o bien asegrese de que se

produzca la demanda mxima de calor. Quite la tapa del modulador. Gire el tornillo de latn (A) de la Fig. 13 hasta obtener los valores de presin indicados en la tabla 1. Controle que la presin dinmica de alimentacin de la caldera, medida en la toma de presin (Pa) de la vlvula del

gas (Figura 12), sea correcta (37 mbar para propano o 20 mbar para gas natural).

C2) Regulacin a potencia reducida Desconecte el cable de alimentacin del modulador y desenrosque el tornillo (B) de la Fig. 13 hasta obtener la presin

correspondiente a la potencia reducida (tabla 1). Conecte otra vez el cable. Monte la tapa del modulador y precinte.

5/20/2018 ECO 280 FI.pdf

45/212


vlvula Honeywell vlvula Sit

La caldera puede modificarse para funcionar con gas metano (G. 20) o gas lquido (G. 31). Esta operacin debe ser realizadapor un Centro de Asistencia Tcnica autorizado.

Figura 13 b

a 0605_

1502

0605_

ECO 280 FI.pdf

Documents

Transcript of ECO 280 FI.pdf