Alpha Alpha CD25C Instructions

Instructions Alpha CD25C/28C/35C Wall Mounted, Fan Assisted, Room Sealed, Gas Fired High Efficiency Condensing Boilers Alpha CD25C British Gas G.C. No. 47 532 32 Alpha CD28C British Gas G.C. No. 47 532 34 Alpha CD35C British Gas G.C. No. 47 532 36 British Gas Service Listed For use with LPG (Propane) only Leave these instructions with the User 0051 Nepicar House, London Road, Wrotham Heath, Sevenoaks, Kent TN15 7RS For Technical help or for Service call ... ALPHA HELPLINE Tel: 0870 3001964 website:www.alpha-innovation.co.uk

37.0 14.8 11.4 2.5 13.3 2.9 37.0 14.8 37.0 14.8 9.6 2.2 11.2 2.5 1 INTRODUCTION This supplement is for the LPG model of the boiler; it must be read in conjunction with the 'Installation and Servicing Instructions' supplied with the boiler and provides the extra information which is particular to LPG. The Alpha CD25C, CD28C and CD35C are combination boilers providing both central heating and domestic hot water at mains pressure. The boilers are designed for use with a fully pumped, sealed and pressurised heating system using only PROPANE gas. 2 TECHNICAL DATA PERFORMANCE - PROPANE GAS (CAT I3P 3P - G31 - 37 mbar) Alpha CD28C Alpha CD28C MAX. 27.1 92 400 24.4 83 250 25.9 88 400 24.0 81 900 7.27 2.9 1.04 36.7 MIN. 7.3 24 900 6.6 22 500 6.9 23 500 6.3 21 500 0.64 0.26 0.28 9.8 Room sealed chamber panel fitted Central Heating Heat Input (Hs) kW (Gross) Btu/h Heat Input (Hi) kW (Net) Btu/h Heat Output (Hs condensing) kW (50°C/30°C) Btu/h Heat Output (Hi non-condensing) kW (80°C/60°C) Btu/h Differential Burner mbar Pressure in wg Gas Supply Pressure (LPG) mbar in wg Gas Rate (LPG) m³/h ft³/h MAX. 31.6 107 900 28.5 97 200 28.7 97 900 9.06 3.62 1.21 42.7 MIN. 7.3 24 900 6.6 22 500 6.3 21 500 0.64 0.26 0.28 9.8 Domestic Hot Water Heat Input (Hs) kW (Gross) Btu/h Heat Input (Hi) kW (Net) Btu/h Output to Water (Hs) kW (modulating) Btu/h Differential Burner mbar Pressure in wg Gas Supply Pressure (LPG) mbar in wg Gas Rate (LPG) m³/h ft³/h Flow Rate at 35°C Rise L/min gal/min Specific Flow Rate (D) at 30°C Rise L/min (Flow rate @ 30K to EN625) gal/min Room sealed chamber panel fitted 37.0 14.8 Alpah CD25C MAX. 20.4 69 600 18.4 62 780 19.5 66 550 18.0 61 420 3.15 1.26 0.78 27.6 MIN. 6.4 21 800 5.8 19 780 6.1 20 820 5.5 18 780 0.4 0.16 0.24 8.5 Room sealed chamber panel fitted Central Heating Heat Input (Hs) kW (Gross) Btu/h Heat Input (Hi) kW (Net) Btu/h Heat Output (Hs condensing) kW (50°C/30°C) Btu/h Heat Output (Hi non-condensing) kW (80°C/60°C) Btu/h Differential Burner mbar Pressure in wg Gas Supply Pressure (LPG) mbar in wg Gas Rate (LPG) m³/h ft³/h Alpha CD25C MAX. 26.7 91 100 24.1 82 200 24.3 84 800 6.10 2.44 1.02 36 MIN. 6.4 21 960 5.8 19 780 5.5 18 780 0.40 0.16 0.24 8.5 Domestic Hot Water Heat Input (Hs) kW (Gross) Btu/h Heat Input (Hi) kW (Net) Btu/h Output to Water (Hs) kW (modulating) Btu/h Differential Burner mbar Pressure in wg Gas Supply Pressure (LPG) mbar in wg Gas Rate (LPG) m³/h ft³/h Flow Rate at 35°C Rise L/min gal/min Specific Flow Rate (D) at 30°C Rise L/min (Flow rate @ 30K to EN625) gal/min Room sealed chamber panel fitted

37.0 14.8 3 BOILER LOCATION Installation pipes, cylinders and pressure regulators should be fitted in accordance with BS 5482:1. Bulk tank installation must comply with the requirements of the Home Office code of practice for the storage of liquefied petroleum gas at fixed installations. The boiler must not be installed in a room or internal space below ground level, e.g. in a basement or cellar, except where at least one side is open to ground level. 4 INSTALLATION In addition to the regulations and requirements stated in the Installation and Servicing instructions, the boiler must be installed in accordance with BS 5482:1 - The Installation of Propane Burning Appliances in Permanent Dwellings. 2.3 GAS SUPPLY The Alpha CD25C boiler requires a gas rate of 1.87 kg/h (4.0 lb/h) or 3.6 litres/h of liquid gas. The Alpha CD28C boiler requires a gas rate of 2.22 kg/h (4.8 lb/h) or 4.2 litres/h of liquid gas. The Alpha CD35C boiler requires a gas rate of 2.67 kg/h (5.7 lb/h) or 5.0 litres/h of liquid gas. The supply pipes must be capable of delivering this quantity of gas in addition to the demand from any other appliances in the house. The boilers require at least a 22 mm gas supply pipe. The complete installation must be tested for gas soundness against leakage. The local Propane gas supplier should be consulted, at the installation planning stage, in order to establish the availability of an adequate supply of gas. 37.0 14.8 14.2 3.13 15.6 3.44 Alpha CD35C MAX. 38.0 129 600 34.3 117 000 34.6 118 100 3.43 1.37 1.46 51.5 MIN. 8.9 30 600 8.1 27 600 8.0 27 300 0.23 0.09 0.34 12.0 Domestic Hot Water Heat Input (Hs) kW (Gross) Btu/h Heat Input (Hi) kW (Net) Btu/h Output to Water (Hs) kW (modulating) Btu/h Differential Burner mbar Pressure in wg Gas Supply Pressure (LPG) mbar in wg Gas Rate (LPG) m³/h ft³/h Flow Rate at 35°C Rise L/min gal/min Specific Flow Rate (D) at 30°C Rise L/min (Flow rate @ 30K to EN625) gal/min Room sealed chamber panel fitted Alpha CD35C MAX. 31.6 107 800 28.5 97 200 30.3 103 400 28.0 95 550 2.49 1.0 1.21 42.7 MIN. 8.9 30 600 8.1 27 600 8.5 29 000 7.8 26 600 0.23 0.09 0.34 12.0 Room sealed chamber panel fitted Central Heating Heat Input (Hs) kW (Gross) Btu/h Heat Input (Hi) kW (Net) Btu/h Heat Output (Hs condensing) kW (50°C/30°C) Btu/h Heat Output (Hi non-condensing) kW (80°C/60°C) Btu/h Differential Burner mbar Pressure in wg Gas Supply Pressure (LPG) mbar in wg Gas Rate (LPG) m³/h ft³/h %CO2 content (± 0.2%) Sedbuk rating LPG (propane) Efficiency band A A A SAP efficiency (%) 91.9 91.6 92.4 Min 10.0 10.1 9.1 CH Max 10.7 10.6 10.7 DHW max 10.6 10.6 10.8 NOx class 5 5 5 Boiler model CD25C CD28C CD35C

Date of Installation: ...................................................................... Name of Installer: ........................................................................ Address: ...................................................................................... .................................................................................................... .................................................................................................... .................................................................................................... Postcode: .................................................................................... Telephone No: ............................................................................. Boiler Serial Number: (LPG) ........................................................ (see inside controls panel hinged cover) Leaflet compiled and designed by Publications 2000 - Tel: (01670) 356211 11/08/D232 Part No. 1.024987 These instructions have been carefully prepared but we reserve the right to alter the specification at any time in the interest of product improvement. © Alpha Therm Limited 2008. 6 PARTS LIST Only the main burner injectors are special to Propane boilers. For other 'Short List Spare Parts', refer to the Installation and Servicing instructions supplied with the boiler. Propane components Main burner injector - CD25C and 28C Main burner injector - CD35C Qty. 1 1 Type 4.0 mm 5.4 mm Alpha Part No. 1.022509 1.024388 7 SERVICING When servicing or replacing boiler components follow the procedures as described in the main Installation and Servicing instructions supplied with the boiler. Remembering the parts special for Propane boilers and the burner pressures special to Propane boilers given in this leaflet. Alpha Therm Limited. Nepicar House, London Road, Wrotham Heath, Sevenoaks, Kent TN15 7RS Tel: 0870 3001964 email: [email protected] website: www.alpha-innovation.co.uk 5 COMMISSIONING The boiler has been tested and factory set for use with Propane gas and it should only be necessary to ensure the correct gas supply pressure of 37 mbar is available.