Évaluations - 1, GPA: 3
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Facilité d'utilisation
If after calculating or measuring the overall flue height from the top of the boiler, it is necessary to cut both pipes of assembly A, then ensure they are cut equally leaving the inner flue tube longer than the outer air tube as supplied. Ensure the cut pipe ends are free from any burrs. 1. Position the roof flashing plate (supplied separately) over the hole cut in the roof and insert flue terminal from the roof end. 1 nm8739 min 16o max 41o MAX LENGTH: 7.5m BOILER Pitched roof tile Flue Terminal 2. Push fit the vertical connector (supplied seperately) into the boiler flue connection and retain with the turret clamp and securing screw (supplied with the boiler). ENSURING THE GASKETS IN THE BOILER FLUE OUTLET ARE CORRECTLY FITTED. 3. "Push" fit extension duct (if required (supplied separately)) into vertical connector. Flat roof tile weather collar weather collar 3 Extension Duct Turret clamp Vertical connector 2 nm8741 nm8743 4 4. If the last extension duct requires cutting, measure ‘X’, the distance (outer ducts), between the duct and the terminal and add 100 mm to this dimension. This gives the length of the last extension duct. Note. Check the position of the inner flue duct relative to the outer duct on the assembled extension duct(s) and ensure the terminal flue duct FLUE OUTLET 'X' is cut longer than the air duct to ensure engagement in the final flue duct seal. 5. Finally ensure the roof flashing plate is correctly sealed to the roof. icos -Installation & Servicing INSTALLATION 33 GAS CONNECTION IMPORTANT. The gas service cock is sealed with a non-metallic fibre washer seal so must not be overheated when making capillary connections. Refer to Frame 2 for details of the position of the gas connection. N.B. The principle of the 1:1 gas valve ensures that the icos HE range is able to deliver it’s full output at inlet pressures down to 14mb. However if dynamic pressures below 20mb are experienced ensure this is adequate for ALL other gas appliances in the property. 34 BOILER WATER CONNECTIONS The boiler flow and return pipes are supplied fitted to the boiler and ready for top connection. Note. For heating loads in excess of 60 000 Btu/h use 28mm x 22mm connectors to connect the boiler flow and return pipes to 28mm. TOP CONNECTION Connect the system pipework to the boiler flow and return pipes. Note. A boiler gas supply pipe length of 20m and not less than 15mm O.D. can be connected to the boiler via the gas service cock union. Ensure that the gas supply pipe does not foul the boiler casing. Refer to Frame 41 for details of the pressure test point position. INSTALLATION The front panel is not fitted at this stage. 35 ELECTRICAL CONNECTIONS WARNING. This appliance MUST be earthed. A mains supply of 230 V ~ 50 Hz is required. All external controls and wiring MUST be suitable for mains voltage. The fuse rating should be 3 A. Wiring external to the boiler MUST be in accordance with the current I.E.E. (BS.7671) Wiring Regulations and any local regulations. Wiring should be 3 core PVC insulated cable NOT LESS than 0.75 mm2 (24 x 0.2mm) and to BS. 6500, Table 16. For IE reference should be made to the current ETCI rules for electrical installations. Connection must be made in a way that allows complete isolation of the electrical supply - such as a double pole switch having a 3mm (1/8") contact separation in both poles, or a plug and socket serving only the boiler and system controls. The means of isolation must be accessible to the user after installation. icos -Installation & Servicing INSTALLATION INSTALLATION 36 INTERNAL WIRING A pictorial wiring diagram is shown in Frame 37. The mains lead connector is pre-fitted. This must be removed to allow wiring. 1. Route the mains cable into the bottom LHS rear of the casing. If using the stand-off kit then route through the grommet. 2. Wire a permanent live supply into the 5-way remote plug terminals L3, N and . IMPORTANT. A permanent live is ESSENTIAL in order for the advanced diagnostic controls to function correctly. 3. Wire the switched live supply into L2 or connect L1 and L2 via external control switching, as shown in Frame 32. In either case, remove the wire link fitted L1 to L2. 4. Secure the mains lead with the cable clamp. 5. Connect the mains lead connector. Ensure it is fully located. Note. Ensure that the lengths of the current carrying conductors are shorter than the earth conductor so that if the cable slips in its anchorage the current carrying conductors become taut before the earth conductor. Ecl 1542 Incoming mains wiring detail L3 N L2 L1 Remove linkwhenconnectingexternal programmer. Mains Connector Socket (supplied in hardware pack) (fixed to boiler) icos -Installation & Servicing INSTALLATION 29icos -Installation & Servicing Spark generator nm 8076 bk bbr bk bbk r b v br br b r r b r r r or or or or b pk pk y y y/gy/g Ferrite y/g y/g y/g y/g y/g y/g bk bk Flue thermistor Overheat thermostat Flow control thermistor Gas valve ON /OFF Switch Servi...
Ce manuel est également adapté pour les modèles :Chauffe-eau - ICOS HE12 (3.92 mb)
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