CITY 1.24 and 2.24 GN CITY 1.24 and 2.24 B/P

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15 mm mini 15 mm mini - The connection to the flue must be as short and direct as possible. - Do not install the boiler over a cooker. 8666N089 - The boiler must be fixed to a solid wall capable of supporting the weight of the appliance when filled with water and associated equipments. - A 15 mm gap on either side of the boiler is sufficient for removing and replacing the casing. However, a 50 mm gap is recommended to facilitate maintenance. - The boiler must not be installed above a heat source or a cooker. - The IPX4D protection index authorises installation in bathrooms, but outside protection level 1 and 2 volumes. Ventilation of the room in which the boiler is installed Fresh air supply In the case of direct fresh air entry, the minimum area required is 50 cm 2. Vitiated air extraction If the boiler is installed in a kitchen, for example, vitiated air from appliances not connected to an extractor pipe (gas cooker, etc.) can be extracted via the draw cup of the boiler. For this it is sufficient for the top of the boiler casing to be at least 1.8 m above the floor. 10 10 cm mini * 48 cm mini S2 S1 55 cm mini 30 cm mini 5 cm either side of the boiler S1 and S2 : Minimum 600 cm 2 unimpeded area 10 cm min * : Distance between front of boiler and inside of closure panel 8666N090 The installation must comply with applicable regulations. Thermostatic radiator valves must not be used on all radiators. The CITY boiler incorporates a by-pass assuring a minimum flow of 200 l/h. Radiators in rooms containing a room thermostat must not be fitted with thermostatic valves. Note: We would draw your attention to the risk of corrosion of boilers installed or near rooms in which the atmosphere may be polluted by substances containing chlorine or fluorine. Examples are: hairdressing salons, industrial premises (solvents), refrigeration plants, etc. The warranty does not cover such installations.
6.2 Connections Important notes: • Before connecting the boiler to an existing installation, the installation must be thoroughly rinsed out using an appropriate product to prevent sludge reaching the heater body of the new boiler. 6.2.1 Installing the backplate See the installation instruction sheet supplied in the backplate pack. 6.2.2 Water and gas connections With 8 or 12 litre expansion tanks, the connections can be made from below, from above or from the rear. • Central heating connection Copper bush for connection to 16/18 mm dia. indoor tube or 20/22 mm dia. outdoor tube. • Domestic hot water connection Copper bush for connection to 14/16 mm dia. indoor tube or 18/20 mm dia. outdoor tube. In hard water areas (hardness >25) we recommend a water softener upstream of the boiler. • Gas connection Conform to the applicable provisions and in particular gas installation specification. A shut-off valve must always be installed as close as possible to the boiler. The copper bush is for 16/18 mm dia. indoor copper tube. Operating pressure 20 mbar for H natural gas H (G20) 25 mbar for H natural gas L (G25) 29 mbar for butane (G30) 37 mbar for propane (G31) 11 • If different metals are used, such as copper and aluminium, a corrosion inhibitor must be used. Central heating outlet ø18 Tube-cutter D.H.W ø16 Gas inlet ø18 Connections D.C.W ø16 From the rear From above From below Central heating return ø18 ø18 od ø16 od ø18 od ø16 od ø18 od ø20 id ø18 id ø18 id ø20 id 8666N130 All nested connections to the gas tube must be made using sleeves purchased off the shelf. 8666N081
Page 1 and 2: ENGLISH Wall-hung gas boilers CITY
Page 3 and 4: 1. GENERAL 1.1 Description CITY 1.2
Page 5 and 6: 2. MAIN DIMENSIONS 2.1 Packages Pac
Page 7 and 8: 3. SCHEMATICS 2.24 and 1.24 boilers
Page 9: 5. HYDRAULIC SPECIFICATIONS 5.1 Cir
Page 13 and 14: 6.2.6 Connection of the Easymatic c
Page 15 and 16: 6.4 Fitting the boiler casing 8666N
Page 17 and 18: 8.5 Air bleed 1 2 Open the stopper
Page 19 and 20: 8.8.2 Burner safety check - With th
Page 21 and 22: 9. MODIFICATION TO USE DIFFERENT GA
Page 23 and 24: 9.6 Adjusting the minimum pressure
Page 25 and 26: 10.3 Domestic hot water If the dome
Page 27 and 28: 12. ELECTRICAL CIRCUIT DIAGRAMS CIT
Page 29 and 30: 13. FAULT CODES In the event of a f
Page 31 and 32: PIPES - 1 SERVICE PIPES - 2 SERVICE
Page 33 and 34: BOILER CASING 71 CONTROL PANEL 82 7
Page 35 and 36: CITY 1.24 and 2.24 Ref. Code No. DE
Page 37 and 38: 15. WARRANTY Thank you for purchasi
Page 39 and 40: Notes 39

CITY 1.24 and 2.24 GN CITY 1.24 and 2.24 B/P

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