GB High efficiency wall-mounted gas-fired boilers ES Caldera mural de gas de alto rendimiento RO Centrală murală cu gaz, de înalt randament HU Magas hozamú fali gázkazán RU Высокопроизводительный настенный газовый котел Instructions for Users and Installers Manual para el usuario y el instalador Manual de instrucţiuni destinat utilizatorului şi instalatorului Felhasználói és szerelői kézikönyv Руководство по эксплуатации и монтажу
Dear Customer, We are sure your new boiler will comply with all your requirements. Purchasing one of the Baxi products satisfies your expectations: good functioning, simplicity and ease of use. Do not dispose of this booklet without reading it: you can find here some very useful information, which will help you to run your boiler correctly and efficiently. Do not leave any parts of the packaging (plastic bags, polystyrene, etc.) within children’s reach as they are a potential source of danger. BAXI S.p.
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. 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.
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; 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.
. 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). 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.
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).
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. To relight the main burner immediately place the selector switch (figure 2) on 0 position and then again on ( ) position.
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; the cocks will allow to carry out important operations on the system without draining it completely.
16. INSTALLAtion of flue and air ducts Models 240 Fi - 1.240 Fi 0503_0905/CG1638 We guarantee ease and flexibility of installation for a gasfired 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. By means of a splitting kit a two-pipe system may also be installed. Exclusively install fittings supplied by the manufacturer.
16.1 horizontal flue terminal installation options 0512_2001 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 60/100 mm 0503_0907/CG1640 16.2 las flue duct 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 16.
… 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.
0504_1806/CG_1794 16.4 split flue overall dimensions 16.5 separated horizontal flue terminals installation options 0503_2201/CG1643 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.
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. connecting the mains supply Electrical safety of the appliance is only guaranteed by correct grounding, in compliance with the applicable laws and regulations.
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 (honeywell or SIT; see figure 12).
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*) Reduced heat output 1,9 4,7 1,9 4,9 1,8 4,9 Burner pressure (mbar*) nominal heat output 10,0 26 11,3 29,4 11,3 31,0 no. of nozzles 15 * 1 mbar = 10,197 mm H2O Table 1 Consumption 15°C-1013 mbar 240 i - 1.
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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 anticlockwise to decrease it.
22. electronic board calibration MET T.Risc T-off 0503_0912/CG1645 When the jumper or the switch is in the OFF position (fig. 15a): operation of the boiler with NATURAL gas boiler heating temperature range 30 - 85°C 150-seconds heating stand-by time Figure 15a GPL T.Risc T-off 0503_0913/CG1645 When the jumper or the switch is in the ON position (fig. 15b): operation of the boiler with LPG boiler heating temperature range 30 - 45°C 30-seconds heating stand-by time Figure 15b NB.
The following parameters can be measured at the connection point on the flue gas circuit: • temperature of the combustion products; • oxygen (O2) or carbon dioxide (CO2) 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.
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 Te = external temperature Figure 18 0505_3002 0503_3102/CG1672 TM Te IMPORTANT: the TM delivery temperature value depends on the position of the jumper or the switch T.RISC. (section 23).
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: • 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.
31.
0503_0916/CG1647 240 i heating inlet domestic water outlet gas domestic water inlet heating return Figure 21 Key: 1 2 3 4 5 6 7 8 9 10 11 12 13 DHW priority sensor automatic by-pass water pressure switch three way valve DHW NTC sensor flow sensor with filter and water flow rate limiter 3-way valve motor gas valve ignition electrode central heating NTC sensor overheat safety thermostat flue-water exchanger flue hood instructions pertaining to the installer 14 15 16 17 18 19 20 21 22 23 24 25 23
1.240 fi 0509_2605/CG1654 SEALED CHAMBER heating inlet gas domestic water inlet heating return Figure 22 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 fan 10 air pressure switch 11 positive pressure point (Not featured on 1.
0510_0403/CG1655 1.
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240 i safety thermostat WATER pressure switch 0803_1006 / CG_1802_2 connection for external sensor probe flue thermostat central heating ntc sensor flame sensing ELECTRODE dhw ntc sensor ignition ELECTRODE dhw PRIORITY sensor fusE PUMP room thermostat 3-way valve feeding power grid feeding terminal block cables colours key C= light blue M= brown N= black R= red G/V= yellow/green B= white V= green P2: P3: P4: P5: instructions pertaining to the installer 27 DHW potentiometer S/W/OFF select
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33. technical data Model ECO3 Category Maximum heat input kW Reduced heat input kW Maximum heat output kW kcal/h Reduced heat output kW kcal/h Useful efficiency according to 92/42/CEE directive — Central heating system max. pressure bar Expansion vessel capacity l Expansion vessel pressure bar 240 Fi II2H3P 25,8 10,6 24 20.600 9,3 8.000 ★★★ 3 8 0,5 1.240 Fi II2H3P 25,8 10,6 24 20.600 9,3 8.000 ★★★ 3 8 0,5 280 Fi II2H3P 30,1 11,9 28 24.080 10,4 8.
УКАЗАНИЯ ДЛЯ МОНТАЖНИКА 151 924.674.
Baxi S.p.A. ED. 1 - 03/09 36061 BASSANO DEL GRAPPA (VI) ITALIA Via Trozzetti, 20 Tel. 0424 - 517111 Telefax 0424/38089 codice 924.674.
