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High efficiency wall-mounted gas-fired boilers Instructions for Users and Installers Caldera mural de gas de alto rendimiento Manual para el usuario y el instalador Centrală murală cu gaz, de înalt randament Manual de instrucţiuni destinat utilizatorului şi instalatorului Magas hozamú fali gázkazán Felhasználói és szerelői kézikönyv Высокопроизводительный…
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Page 2: Table Of Contents
(ISO 9001), environmental (ISO 14001) and health and safety (OHSAS 18001) systems. This means that BAXI S.p.A. includes among its objectives the safeguard of the environment, the reliability and quality of its products, and the health and safety of its employees.
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Page 3: Instructions Prior To Installation, Instructions Prior To Commissioning
1. InStRUCtIOnS pRIOR tO InStallatIOn 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.
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Page 4: Commissioning Of The Boiler, Dhw Temperature Adjustment
3. COMMISSIOnInG Of tHE BOIlER 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;…
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Page 5: Room Temperature Adjustment, Filling The Boiler, Turning Off The Boiler, Gas Change
5. ROOM tEMpERatURE adjUStMEnt The system must be equipped with a room thermostat (see the relevant regulations) to control the temperature in the rooms. In case there is no room thermostat, during initial lighting, it will be possible to control the room temperature by turning control (2).
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Page 6: Prolonged Standstill Of The System. Frost Protection, Safety Device Indicators – Activation, Servicing Instructions
9. pROlOnGEd StandStIll Of tHE SyStEM. fROSt pROtECtIOn 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).
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Page 7: General Information, Instructions Prior To Installation
12. GEnERal InfORMatIOn Warning: When the selector switch (figure 2) is set on Wintertime operation ( ), it may be necessary to wait some minutes for 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.
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Page 8: Boiler Installation, Boiler Size
14. BOIlER InStallatIOn Decide upon the boiler location, then tape the template on the wall. Connect the pipework to the gas and water inlets prearranged on the template lower bar. We suggest you fit two G3/4 stop cocks (available on demand) on the central heating system flow and return pipework;…
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Page 9: Installation Of Flue And Air Ducts
16. InStallatIOn Of flUE and aIR dUCtS Models 240 Fi – 1.240 Fi We guarantee ease and flexibility of instal lation for a gas- fired forced draught boiler thanks to the fittings and fixtures supplied (described below). The boiler is especially designed for connection to an exhaust flue / air ducting, with either coaxial, vertical or horizontal terminal.
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16.1 HORIzOntal flUE tERMInal InStallatIOn OptIOnS L max = 5 m 240 Fi Ø 60/100 mm – 9 m Ø 80/120 mm L max = 4 m 280 Fi Ø 60/100 mm L max = 4 m 240 Fi Ø 60/100 mm – 8 m Ø 80/120 mm L max = 3 m 280 Fi Ø…
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… 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.
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16.4 SplIt flUE OvERall dIMEnSIOnS 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. L max = 10 m 240 Fi (L1 + L2) max = 40 m 240 Fi L max = 8 m 280 Fi…
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Page 13: Connecting The Mains Supply, Fitting A Room Thermostat
important: if fitting a single exhaust flue duct, ensure it is adequately insulated (e.g.: with glass wool) wherever the duct passes through building walls. For detailed instructions concerning the installation of fittings refer to the technical data accompanying the fittings. 17.
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Page 14: Gas Change Modalities
19. GaS CHanGE MOdalItIES 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 (HONEY WELL or SIT;…
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table of burner pressures 240 i – 1.240 i 240 Fi 280 Fi Gas used nozzle diameter (mm) 1,18 0,74 1,18 0,74 1,28 0,77 Burner pressure (mbar*) reDuceD heat output Burner pressure (mbar*) 10,0 11,3 29,4 11,3 31,0 noMinaL heat output no.
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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 position turns it fully anti-clockwise to the minimum value;…
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Page 17: Control And Operation Devices
21. COntROl and OpERatIOn dEvICES 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 anti clock wise to decrease it.
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Page 18: Electronic Board Calibration, Positioning Of The Ignition And Flame Sensing Electrode, Check Of Combustion Parameters
22. ElECtROnIC BOaRd CalIBRatIOn When the jumper or the switch is in the oFF position (fig. 15a): operation of the boiler with NATURAL gas t.risc boiler heating temperature range 30 – 85°c t-off 150-seconds heating stand-by time Figure 15a When the jumper or the switch is in the on position (fig.
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Page 19: Output / Pump Head Performances, Connection Of The External Probe
The following parameters can be measured at the connection point on the flue gas circuit: • temperature of the combustion products; • oxygen (O ) or carbon dioxide (CO ) concentration; • carbon monoxide (CO) concentration. The combustion air temperature must be measured at the connection point on the air intake circuit, inserting the measurement probe to a depth of about 3 cm.
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Page 20
When the external probe is connected, the heating circuit temperature control device (2 – figure 1), regulates the dispersal coefficient kt (Figure 18). The figures below show the relation between knob position and curves. Intermediate curves may also be set. tM = Range delivery temperature = external temperature Figure 18…
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Page 21: How To Purge The Dhw System From Limestone Deposits
28. HOw tO pURGE tHE dHw SyStEM fROM lIMEStOnE dEpOSItS 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: •…
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Page 22: Boiler Schematic
31. BOIlER SCHEMatIC 240 fi – 280 fi 280 Fi seaLeD chaMBer 0606_2701 heating domestic domestic heating inlet water outlet water inlet return Figure 20 Key: 1 DHW priority sensor 15 air pressure switch 2 automatic by-pass 16 positive pressure point 3 water pressure switch 17 negative pressure point 4 three way valve…
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240 i heating domestic domestic heating inlet water outlet water inlet return Figure 21 Key: 14 flue thermostat 1 DHW priority sensor 15 flame detector electrode 2 automatic by-pass 16 main burner 3 water pressure switch 17 burner injectors 4 three way valve 18 expansion vessel 5 DHW NTC sensor 19 plate heat exchanger (D.H.W.)
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1.240 fi seaLeD chaMBer heating domestic heating inlet water inlet return Figure 22 Key: 1 water pressure switch 12 negative pressure point 2 automatic bypass 13 flame detector electrode 3 gas valve 14 main burner 4 ignition electrode 15 burner injectors 5 central heating NTC sensor 16 expansion vessel 6 overheat safety thermostat…
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1.240 i heating domestic heating inlet water inlet return Figure 23 Key: 10 flame detector electrode 1 water pressure switch 11 main burner 2 automatic bypass 12 burner injectors 3 gas valve 13 expansion vessel 4 ignition electrode 14 automatic air vent 5 central heating NTC sensor 15 pump and air separator 6 overheat safety thermostat…
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Page 26: Illustrated Wiring Diagram
32. IllUStRatEd wIRInG dIaGRaM 240 fi – 280 fi CONNECTION FOR AIR PRESSURE EXTERNAL SENSOR SWITCH PROBE SAFETY THERmOSTAT WATER PRESSURE SWITCH CENTRAL HEATING NTC SENSOR FLAmE SENSING ELECTRODE DHW NTC SENSOR IGNITION ELECTRODE PRIORITY SENSOR FUSE PUmP ROOm THERmOSTAT 3-WAY VALVE FEEDING POWER…
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240 i CONNECTION FOR FLUE EXTERNAL SENSOR THERmOSTAT PROBE SAFETY THERmOSTAT WATER PRESSURE SWITCH CENTRAL HEATING NTC SENSOR FLAmE SENSING ELECTRODE DHW NTC SENSOR IGNITION ELECTRODE PRIORITY SENSOR FUSE PUmP ROOm THERmOSTAT 3-WAY VALVE FEEDING POWER GRID FeeDinG terMinaL BLocK caBLes coLours c= light blue p2: DHW potentiometer…
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1.240 fi CONNECTION FOR AIR PRESSURE EXTERNAL SENSOR SWITCH PROBE SAFETY THERmOSTAT WATER PRESSURE SWITCH CENTRAL HEATING NTC SENSOR FLAmE SENSING ELECTRODE IGNITION ELECTRODE FUSE PUmP ROOm THERmOSTAT FEEDING POWER GRID FeeDinG terMinaL BLocK Jumper cn7 to be jumpered caBLes coLours p2: DHW potentiometer c= light blue M= brown…
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1.240 i CONNECTION FOR FLUE EXTERNAL SENSOR THERmOSTAT PROBE SAFETY THERmOSTAT WATER PRESSURE SWITCH CENTRAL HEATING NTC SENSOR FLAmE SENSING ELECTRODE IGNITION ELECTRODE FUSE PUmP ROOm THERmOSTAT FEEDING POWER GRID FeeDinG terMinaL BLocK Jumper cn7 to be jumpered caBLes coLours p2: DHW potentiometer c= light blue M= brown…
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Page 30: Technical Data
33. tECHnICal data Model eco3 240 Fi 1.240 Fi 280 Fi 240 i 1.240 i category 2h3p 2h3p 2h3p 2h3p 2h3p maximum heat input 25,8 25,8 30,1 26,3 26,3 Reduced heat input 10,6 10,6 11,9 10,6 10,6 maximum heat output kcal/h 20.600 20.600…
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УКАЗАНИЯ ДЛЯ МОНТАЖНИКА 924.674.3 – RU…
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BaxI S.p.a. 36061 BASSANO DEL GRAPPA (VI) ITALIA Via Trozzetti, 20 Tel. 0424 – 517111 Telefax 0424/38089 ED. 1 – 03/09 codice 924.674.3…
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