SMALL IN SIZE - BIG ON THE ENVIRONMENT

MICROCONDENS SERIESWALL-HUNG CONDENSING GAS BOILERS

EVEN WHEN USING THEMOST ADVANCETECHNOLOGY AVAILABLE

Condensing boilers are relatively new tothe UK but have been popular inNorthern Continental Europe for manyyears. Traditional gas boilers burn fuel,creating the energy that is used to heatwater in a central heating system or fordomestic hot water. Unfortunately not allthe energy created by a traditional boileris harnessed, some ‘escapes’ in theform of water vapour mixed with exhaustgases via the flue, these fumes add togreen house gasses in the atmosphere.With condensing technology, this energyis not wasted because the watervapours condense to become wateronce again and the energy harnessedand used to provide power for the boiler.As a result, the heat normally lostthrough the flue is recycled and returnedto the main heat exchanger preventingthe useless dispersion and thereforewaste of energy.

CONDENSING BOILERS: ANIDEA THAT’S EASY TOEXPLAIN

microCONDENS Series

This boiler meets European Class 5 and is SEDBUK Band A Rated

Energy Efficiency Recommended is an Energy SavingTrust initiative backed by the government. The logo isonly found on products that have been carefully selectedfor their energy efficiency. Buy where you see the signand help save energy, money and the environment.

EASY TO INSTALL WITH MICRO DIMENSIONS

At just 700mm h x 400mm w x 300mm d the microCONDENS Series areamongst the smallest condensing boilers on the market. Ariston hasdesigned ecoCombi and ecoSYSTEM to be, not only easy to install, buteasy to maintain. All components are accessible via the front of theboiler, i.e. no need to remove side panels, which has the dual benefit ofminimising the clearance space required at either side of the boiler whensiting. Both boilers are equipped with a condensate trap connected to theheat exchanger, which is accessible from outside the chassis for quickand easy maintenance. The control panel displays information from theboilers’ self-diagnostic checking sequence, enabling technicians tooptimise performance according to specific installation situations.

High performance usually results in increased pollution.This rule does not apply to the microCONDENS Series; the range featuresboth a condensing combination boiler (ecoCombi) and a condensingsystem boiler (ecoSYSTEM), both boasting a SEDBUK Band A rating.Guaranteeing a considerable reduction in fuel consumption whileensuring lower environmental impact.This means that it is easy to make an environmentally friendly decisionwhilst lowering heating bills, therefore saving money.Innovative design allows Ariston to fully exploit the advantages ofcondensing technology. Due to the pre-mix technology used in the heatexchanger, the microCONDENS Series works with a low excess of airallowing better condensing of the exhaust products to achieve a highSEDBUK Band A efficiency rating and low CO and NOx emissions.Available as an optional extra the ‘outdoor sensor’ can further increasesenergy efficiency by monitoring the weather conditions outside andmodifying the boiler settings accordingly. An advanced P.C.B. with amicroprocessor combined with intelligent software enables the boilers toselect the correct thermal curve to optimise condensing operation andefficiency.

MICROCONDENS SERIES OFFERS:ENERGY EFFICIENCY ANDINNOVATION

Prog

. hm

Day

WALL-HUNG CONDENSINGGAS COMBINATION BOILER

ECOCOMBI

ECOCOMBI 27 MFFI Ø 3/4” BSP Ø 1/2” BSP Ø 3/4” BSP Ø 1/2” BSP Ø 3/4” BSP G1 60/100, 80/125 G2 80

ACentral heating flow

BDomestic hot water outlet

DDomestic hot water inlet

ECentral heating return

GFlue (Ø mm)

CGas inlet

Twin pipe exhaust Coaxial exhaust

Pro

g. hm

Day

100105

300

142

CABDE

F 1

Pro

g. hm

Day

CLEARANCE DIMENSIONS – PIPE FITTINGS – EXHAUST OUTLETS

• High efficiency condensingtechnology

• Compact dimensions (300x400x700mm)

• SEDBUK Band A

• Aesthetically pleasing design

• Fully modulating in C.H./D.H.W withan accuracy to ± 1°C

• Advanced P.C.B. with microprocessor

• Built-in fault diagnosis display onfront of boiler

• Over-sized secondary heat exchangerfor better D.H.W. delivery

• Condensate trap accessable fromoutside casing for easy maintenance

• Comfort pre-heat function

• Built in digital time clock

• Anti-frost device

• Anti-scale device

• Built in automatic by-pass

• 2 year guarantee

• Guarantee extendable up to 5 years

27 MFFI

Outdoor sensor(optional)

High efficiency D.H.W. plateheat exchanger

Automatic by-pass

C.H. Temp. adjustment

D.H.W. temp.adjustment

P.C.B. with microprocessor

Combustion analysis device

IPX 4D

Fully modulating

Anti-frost device

Anti-scale device

12

3

40bar

Insufficient systempressure shutdown

Low NOx

This product has an energy rating ofA on a scale of A-G for more

information see www.SEDBUK.com

SCHEMATIC

TECHNICAL INFORMATION

ECOCOMBI27 MFFI

Category II 2H 3B/PType B23-B33

POWERHeating capacity min/max kW - Btu/h 7.8/23.6 - 26,600/80,500Usable heat output min/max (30/40°C) kW - Btu/h 7.9/26.7 - 26,900/90,900Usable heat output min/max (60/80°C) kW - Btu/h 6.8/23.3 - 23,200/79,500Usable heat output min/max (30/50°C) kW - Btu/h 0.0/24.5 - 0.0/83,000Output for hot water production min/max kW - Btu/h 8/27 - 27,300/92,100

EFFICIENCYSEDBUK Rating Band A

CHARACTERISTICSMaximum heat loss to the casing (∆T = 50°C) % 1.1Heat loss through the flue when burner on % 1.8Heat loss through the flue when burner off % 0.4Maximum exhaust discharge kg/h 34.3Maximum exhaust gas temperature °C 66.7Exhaust gas temperature with 30/40°C heating (1m coaxial) °C 42.9Minimum ambient temperature °C 5NOx class 5CO2 content % 9.8Gas inlet pressure - Natural Gas (G20) mbar 20Gas inlet pressure - LPG (G30-G31)) mbar 30-37Residual discharge head mbar 0.65Pressure loss through boiler (max) (∆T = 20°C) mbar 200Total residual head for heating system (60/80°C) bar 0.2Maximum heating pressure bar 3Maximum water content of system litres 130Built-in expansion vessel pre-charged pressure bar 1Maximum domestic hot water pressure bar 8Minimum domestic hot water pressure bar 0.2Nominal D.H.W. flow rate l/h 820Minimum D.H.W. flow rate l/min 2.5Built-in expansion vessel capacity litres 7Quantity of condensed water with 30/40°C l/h 1.8Condensate pH 3.5 to 4Weight kg 44G.C. number 47-116-23

PERFORMANCEMin/max heating temperature (upper temperature range) °C 42/82Min/max heating temperature (lower temperature range) °C 30/75Maximum domestic hot water temperature °C 56Minimum domestic hot water temperature °C 36D.H.W. Flow rate ∆T = 35°C gal/min 2.4D.H.W. Flow rate ∆T = 35°C l/min 10.7

ELECTRICAL DATAElectrical supply V/Hz 230/50Power consumption W 130Protection grade of electrical system IP X4D

Graph of boiler residual head

flow rate l/h100 200 300 400 500 600 700 800 900 1000 1100 1200 1300

100

200

300

400

500

Separation of theintake

Simplified coaxialexhaust pipe systemfitting

ROOM-SEALED FAN FLUE27 MFFI

Flue connector

Heating flowtemperature

probe

Ignition &detection electrode

Fan

Silencer

Condensatetrap

3 bar safetyvalve

D.H.W.temperature

probe

Cast aluminiummain heatexchanger

Combustionchamberinspectionpanel

Circulation pumpwith automaticair release valve

Drain valve

D.H.W. flowswitchControl

Panel

Gas valve

Heatingreturn

temperatureprobe

Pumppressure

switch

Mixer

Secondary heatexchanger

Automaticby-pass

Expansionvessel

Divertervalve

mbar

ECOSYSTEM 27 RFFI

Twin pipe exhaust Coaxial exhaust

Ø 3/4” BSP Ø 3/4” BSP Ø 3/4” BSP G1 Ø 60/100 - G2 Ø 80

ACentral heating flow

ECentral heating return

GExhaust outlets

CGas inlet

WALL-HUNG CONDENSINGGAS SYSTEM BOILERfor connection to an external Ariston unventedstorage cylinder for large quantities of hot water

ECOSYSTEM

CLEARANCE DIMENSIONS – PIPE FITTINGS – EXHAUST OUTLETS

• High efficiency condensingtechnology

• Compact dimensions (300x400x700mm)

• SEDBUK Band A

• Aesthetically pleasing design

• Fully modulating in C.H./D.H.W withan accuracy to ± 1°C

• Advanced P.C.B. with microprocessor

• Built-in fault diagnosis display onfront of boiler

• Optional D.H.W. priority kit

• Condensate trap accessable fromoutside casing for easy maintenance

• Anti-frost device

• Anti-scale device

• Built in automatic by-pass

• 2 year guarantee

• Guarantee extendable up to 5 years

27 RFFI

Fully modulating High Efficiency Automatic by-pass

C.H. Temp.adjustment

P.C.B. with microprocessor

Combustion analysis device

IPX4D Anti-frost device

Anti-scale device

12

3

40bar

Insufficient systempressure shutdown

Low NOx Outdoor sensor(optional)

This product has an energy rating ofA on a scale of A-G for more

information see www.SEDBUK.com

SCHEMATIC

ROOM-SEALED FAN FLUE27 RFFI

TECHNICAL INFORMATION

ECOSYSTEM27 RFFI

Category II 2H 3B/PType B23-B33

POWERHeating capacity min/max kW - Btu/h 7.1/24 - 24,200/81,900Usable heat output min/max (30/40°C) kW - Btu/h 7.9/26.7 - 26,900/91,100Usable heat output min/max (60/80°C) kW - Btu/h 6.8/23.3 - 23,200/79,500Usable heat output min/max (30/50°C) kW - Btu/h 0.0/24.5 - 0.0/83,600Output for hot water production min/max* kW - Btu/h 8/27 - 27,300/92,100

EFFICIENCYSEDBUK Rating Band A

CHARACTERISTICSMaximum heat loss to the casing (∆T = 50°C) % 1.1Heat loss through the flue when burner on % 1.8Heat loss through the flue when burner off % 0.4Maximum exhaust discharge kg/h 34.3Maximum exhaust gas temperature °C 66.7Exhaust gas temperature with 30/40°C heating (1m coaxial) °C 42.9Minimum ambient temperature °C 5NOx class 5CO2 content % 9.8Gas inlet pressure - Natural Gas (G20) mbar 20Gas inlet pressure - LPG (G30-G31)) mbar 30-37Residual discharge head mbar 0.65Pressure loss through boiler (max) (∆T = 20°C) mbar 200Total residual head for heating system (60/80°C) bar 0.2Maximum heating pressure bar 3Maximum water content of system litres 130Built-in expansion vessel pre-charged pressure bar 1Built-in expansion vessel capacity litres 7Quantity of condensed water with 30/40°C l/h 1.8Condensate pH 3.5 to 4Weight kg 41G.C. number 41-116-08

PERFORMANCEMin/max heating temperature (upper temperature range) °C 42/82Min/max heating temperature (lower temperature range) °C 30/75

ELECTRICAL DATAElectrical supply V/Hz 230/50Power consumption W 130Protection grade of electrical system IP 4XD

*when D.H.W. priority kit connected

Graph of boiler residual head

flow rate l/h100 200 300 400 500 600 700 800 900 1000 1100 1200 1300

100

200

300

400

500

Separation of theintake

Simplified coaxialexhaust pipe systemfitting

mbar

Flue connector

Heating flowtemperature

probe

Ignition &detection electrode

Fan

Silencer

Condensatetrap

3 bar safetyvalve

Cast aluminiummain heatexchanger

Combustionchamberinspectionpanel

Circulation pumpwith automaticair release valve

Drain valve

ControlPanel

Gas valve

Heatingreturn

temperatureprobe

Pumppressure

switch

Mixer

Expansionvessel

FLUE PIPE ACCESSORIES -FOR ANY INSTALLATION,THE RIGHT PARTS FOR MAKING YOUR JOB EASIER

Ariston boilers offer the best choice because theyare all designed to be completely adaptable tothe many different situations that may beencountered on a daily basis. The need for alteration is almost completelyeliminated, allowing you to install the boiler in ashort time and with the utmost ease. This will also contribute towards the success ofyour business: an objective that has alwaysdistinguished the relationship between Aristonand its customers/partners.

P

TERMINAL POSITION mmA Directly below an opening, air brick, opening windows, etc 300B Above an opening, air brick, opening windows, etc 300C Horizontally to an opening, air brick, opening windows, etc 300D Below gutters, soil pipes or drain pipes 75E Below eaves 200F Below balconies or car port roof 200G From vertical drain or soil pipe 150H From an interal or external corner 300I Above ground roof or balcony level 300J From a surface facing the terminal 600K From a terminal facing the terminal 1200L From an opening in the car port 1200

(eg door, window) into the dwellingM Vertically from a terminal on the same wall 1500N Horizontally from a terminal in the same wall 300P Fixed by use of terminal and matched flashing plate -

INSTALLATION CONDITIONS

Pr

og.

h

mDay

TYPE 2 Coaxial System TYPE 5 Coaxial System

TYPE 8 Twin pipe system TYPE 9 Twin pipe systemTYPE 7 Twin pipe system

TYPE 3 Coaxial System TYPE 4 Coaxial System

TYPE 6 Coaxial System

Horizontal exhaust / suction via coaxialpiping on a vertical wall.

Vertical exhaust / suction system withcoaxial piping on a pitched roof.

Vertical exhaust / suction via coaxialpiping on a pitched roof.

Horizontal exhaust / suction via coaxialpiping with condensate trap on a verticalwall.

Prog

.

h

m

Day

TYPE 1 Coaxial System

Vertical exhaust / suction with 45°elbows via coaxial piping on a pitchedroof.

Exhaust via a vertical flue duct / suctionfrom indoor.

Exhaust / suction system with twoseparate pipes - exhaust on a pitchedroof, suction through a wall.

Exhaust / suction system with twoseparate pipes - exhaust via flue duct,suction through a wall.

Exhaust / suction system with twoseparate pipes - exhaust and suction ona pitched roof via a coaxial adaptor.

Coaxial system: up to 4 m

Twin pipe system up to 27 m

ACCESSORIES AND SPARE PARTSENGINEERED FORPERFECT INSTALLATION

REAR-PIPING CHASSISAllows easy installation where thesystem pipes are required to run upthe rear of the boiler. The rear-piping chassis consists of abracket on which the boiler is hung,this has two flanks that extend theside panel of the boiler chassis.Assemble by just bringing forwardthe valve kit and connecting thepipes. The rear-piping chassis kit includesthe pipe work elements forconnection to the system.

JIG-KIT (ecoCombi)Supplied within the boileras standard The jig-kit makes installation easierbecause it allows you to fill thesystem even without the boiler fitted.It is equipped with 4 isolation valves:2 for the heating circuit, 2 for thedomestic water system.The system return isolation valvecan be connected to the systemcleaner using the plug provided. The bracket that holds the valvescan be positioned in two waysdepending on whether installation iswith or without the rear-pipingchassis, and allows smalladjustments for irregular walls.

The kit is supplied with:• double non-return valves on the

filling loop for filling the system;• cold domestic water inlet with three

settings:summer, winter, and off;• “end-feed” connections on copper

tail pipes to ease soldering to thesystem piping.

SYSTEM CLEANERA practical accessory for cleaningthe heating system.It is simple to use: connect thesystem cleaner to the system returnisolation valve, open the systemreturn isolation valve, switch on theboiler, allow the pump to run for thenecessary time then remove thesystem cleaner from the kit.The filter provided is made up of aremovable cartridge which absorbsany impurities in the system. This allows the flushing of a newheating system without theimpurities damaging the boilercomponents. The system cleaner can also beused to add chemical additives suchas inhibitors.

ANTI-THEFT DEVICEProtects the boiler from theft andcan be assembled in two ways: with or without the rear-pipingchassis. The simple assemblyinstructions are included in the jig-kitand on the anti-theft device itself.

OUTDOOR SENSORAn optional accessory to optimiseefficiencyThe microCONDENS Series featuresan outdoor temperature sensor toincrease energy efficiency. Thesensor monitors outsidetemperatures and conditions toassess when the boiler needs to befired to meet the pre-programmedsettings: this means the boiler willbe fired earlier if the temperatureoutside the home falls or later if itrises.

PRINTED CIRCUIT BOARDRegulates the sophisticatedmanagement and control functions: • flame control• water control• overheating switch-off device• anti-frost safety device• maximum heating power adjustment• “soft-light” gas pressure adjustment• anti-cycling device: adjustment of

minimum switch-off and switch-ontime to between Ø and 2 minutes(during the heating stage)

• combustion analysis device.

ARISTONQUALITY PRODUCTSEXCEPTIONAL SERVICE

• Belfast• Bristol• Edinburgh• High Wycombe• Manchester• Portsmouth• Rochester• Rotherham

COMPREHENSIVETRAINING

The numerous AristonTraining Centres allow you tolearn and expand your knowledge of the field.Courses cover areas such as customer relations, productselection, installation, system start-up, checks,maintenance, guarantees,and legislative standards.

TECHNICAL HOT LINE

Immediate and effectivetechnical assistance is onlya phone call away.Assistance is also availablefor any information or adviceon the product most suitablefor your needs and therequirements of your systeminstallation.

PROFESSIONALSERVICE

Ariston service technicians areswift and prepared for anyeventuality. They offer you andyour customers a high level ofassistance, comprising thebest technical, logistic andhuman resources available.Ariston invests a great deal inthis field to guarantee adecisive advantage that others cannot offer.

MTS (GB) LimitedMTS BuildingHughenden AvenueHigh WycombeBucks, HP13 5FTTel: 01494 755600Fax: 01494 459775

Technical Service Hot Line 01494 539579Technical Service Fax Line 01494 463066

E-mail: technical@mtsgb.ltd.ukwww.ariston.co.uk

E-mail: info@mtsgb.ltd.uk

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