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pressure Low mbar in.w.g. 10.4 4.2 10.1 4.0 9.7 3.9 9.6 3.8 9.7 3.9 5.1 2.0 4.9 2.0 4.8 1.9 4.7 1.9 4.8 1.9 Part load efficiency % 83.0 81.6 82.5 82.9 82.8 Note. To obtain gas consumption in l/s divide gross heat input (kW) by a calorific value of 37.8(MJ/m2) Table 2 - General Data Boiler CXSi 110/H CXSi 120/H CXSi 140/H CXSi 160/H CXSi 180/H Number of sections 7 7 8 9 10 Flow connections Rc 65 mm (2 1/2") nominal bore. Flange to BS.4504 (PN6) Return tappings Rc 2 x 2 Maximum static head m. (ft) 61.0 (200) Maximum pressure bar (psi) 6.0 (87) Gas inlet connection Rc 1 1/2 Minimum dynamic gas pressure mbar in. 17.5 7 17.5 7 17.5 7 17.5 7 17.5 7 Electricity supply 230 Volts - single phase, 50 Hz, fuse 5 A Nominal flue size (to BS. 835) mm in. 250 10 250 10 250 10 250 10 300 12 Diverter outlet socket internal diameter mm in. 288 11.3 288 11.3 288 11.3 288 11.3 344 13.5 Length of burner bars (overall) mm in 535 21.1 535 21.1 535 21.1 535 21.1 535 21.1 Approximate dry weight kg lb. 538 1186 538 1186 608 1340 678 1494 748 1648 Water content litre gal. 53 11.7 53 11.7 60 13 68 15 76 17 Concord CXSi/H -Installation & Servicing GENERAL Concord CXSi 110/H-180/H (Natural gas) B.G. Certified -P.I. No. 87/AQ/341 Destination Countries: GB and IE CONTENTS Air Supply......................................................................... 9 Boiler Assembly - exploded view. ............................... 10 Boiler Clearances............................................................ 6 Burner Assemblies - exploded views. ............................ CXSi 110/H-160/H. ................................................. 25 CXSi 180/H. ............................................................ 26 Casing Assembly. ......................................................... 14 Chimney System. ............................................................ 9 Commissioning. ............................................................ 20 Electrical Connections. ................................................ 17 Electrical Supply. ............................................................ 9 Fault Finding. ................................................................ 29 Gas Safety Regulations .................................................. 4 Gas Supply. ...................................................................... 9 Hydraulic Resistance. ..................................................... 6 Initial Lighting. .............................................................. 21 Installation. .................................................................... 10 Mandatory Requirements. .............................................. 8 Option Kits. ...................................................................... 5 Pump. ............................................................................... 7 Servicing. ....................................................................... 24 Short List of Parts. ........................................................ 31 Static Head Requirements. ............................................ 7 System Connections..................................................... 13 Ventilation. ....................................................................... 9 Water Circulation. ........................................................... 5 Water Connections. ........................................................ 5 Water Treatment. ............................................................. 7 Wiring Diagrams. .......................................................... 19 INTRODUCTION CONSTRUCTION BOILER BODY The sectional boiler body is of cast iron and is supplied with a sheet steel combustion chamber and integral draught diverter. The boiler is supplied in sectioned form for site assembly. CASING The casing is manufactured in stove enamelled sheet steel and is easily assembled on site. BURNERS The burners are of stainless steel construction. CURRENT GAS SAFETY (INSTALLATION AND USE) REGULATIONS OR RULES IN FORCE. It is the law that all gas appliances are installed and serviced by a CORGI registered installer in accordance with the above regulations. Failure to install appliances correctly could lead to prosecution. It is in your own interest, and that of safety, to ensure that the law is complied with. The Concord CXSi 110/H-180/H range of boilers has been tested and certified by British Gas to prEN656 for use with natural gas only. Note. Concord CXSi 110/H - 180/H boilers are intended for use as COMMERCIAL BOILERS and are NOT certified for use in domestic applications. A domestic installation is defined as an installation where the boiler takes its combustion air from a living space or from a room directly or indirectly connected with the living space. It is important, therefore, that no external control devices - e.g. flue dampers, economisers etc., are directly connected to this appliance unless covered by these Installation and Servicing Instructions or otherwise recommended by...

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