Olympic 20/35F Installation Manual

INSTALLATION Olympic 20/35F and 38/50F Wall mounted gas boilers G.C. Appliance No’s. Olympic 20/35F 41 789 65 Olympic 38/50F 41 789 66 For use with Natural Gas only. Leave these instructions adjacent to the gas meter Read these instructions thoroughly before installing the boiler. General These fanned draught balanced flue wall mounted boilers are for use on natural gas only, and are suitable for rear or side exit flue. The Olympic 38/50F is range rated from 11.14 to 14.65 kW (38 000 to 50 000 Btu/h). The Olympic 20/35F is range rated from 5.86 to 10.26 kW (20 000 to 35 000 Btu/h). The boiler must be installed in accordance with: The Gas Safety Regulations 1972. The Gas Safety (Installation and Use) Regulations 1984. Local Building Regulations. By-Laws of the local Water Undertaking. I.E.E. Wiring Regulations. Detailed recommendations are stated in the following British Standard Codes of Practice: CP331:3:1974, BS5376:2:1976, BS5546:1979, BS5440:1 :1978, BS5440:2:1976 and BS5449:1:1977. Note: Gas Safety Regulations: It is the law that all gas appliances are installed by competent persons, 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. Delivery

terminal assembly. The same flue terminal assembly is used for both sizes of boiler. If required, extended flue tubes 1500 mm (59 in) long are available. A plug-in programmer kit is also available to fit inside the boiler casing. This programmer simplifies wiring and is suitable for use with all external control systems shown in this instruction. Gas supply The 38/5OF requires 1.84 m3/h (66 ft3/h) of natural gas, the 20/35F requires 1.28 m3/h (46 ft3/h). The meter and supply pipes must be capable of delivering this quantity of gas in addition to the demand from any other appliances in the house. The complete installation must be tested for gas soundness and purged as described in CP331:3. Electricity supply 240V 50Hz via a fused double pole switch with a contact separation of at least 3 mm in both poles or preferably a fused 3-pin plug and shuttered outlet socket, adjacent to the boiler. Fuse the supply at 3 amp. Mains cable: 0.75 mm2 (24 x 0.20 mm). The external wiring between the appliance and the electrical supply shall comply with the latest lEE Wiring Regulations, and any local regulations which apply. The appliance must be earthed. In the event of an electrical fault after installation of the appliance, preliminary electrical systems checks can be carried out as described in the British Gas multimeter instruction book. Air supply 1. The room in which the boiler is installed does not require a purpose provided air vent. 2. If the boiler is installed in a cupboard or compartment, permanent air vents are required in the cupboard or compartment, one at high level and one at low level, either direct to the outside air or to a room. Both high and low level air vents must communicate with the same room or must both be on the same wall to outside air. Both the high level and low level vents must have a free area of 180 cm2 (28 in2) for the 38/5OF and 123 cm2

ventilation is provided directly from outside. Flue system The boiler must be installed so that the terminal is exposed to the external air. It is important that the position of the terminal allows the free passage of air across it at all times. The minimum acceptable spacings from the terminal to obstructions, corners and ventilation openings are specified in the chart below. *If the terminal is fitted within 850 mm (34 in) of a plastic or painted gutter/pipe or 450 mm (18 in) of painted eaves, an aluminium shield of at least 750 mm (30 in) in length should be fitted to the underside of the gutter/pipe or painted surface. † If the terminal is fitted less than 2 m (6.6 ft) above a balcony, above ground or above a flat roof to which people have access then a suitable terminal guard must be provided. A type K2 protective guard is available from Tower Flue Components Ltd at: Vale Rise Tonbridge Kent TN9 1TB Tel: 0732 351555 Page 1 The flue tube assembly and terminal of the boiler must not be closer than 50 mm (2 in) to combustible material. When using side exit flue the flue tubes must be protected if they are accessible to the User. Detailed recommendations on protection of combustible materials and exposed flue protection are given in BS5440:1:1978, sub-clause 20-1.

the weight of the boiler. If the wall is of combustible material it must be protected by a sheet of non-combustible material of thickness not less than 25 mm (1 in). Note: If the boiler is to be fitted into a house of timber frame construction, advice is available from your trade organisation or local Gas Region. The boiler is designed for use with an open vented central heating system and/or indirect domestic hot water system. IT MUST NOT BE CONNECTED TO A DIRECT CYLINDER. The boiler may be installed in any room, although particular attention is drawn to the requirements of the latest I.E.E. Wiring Regulations and, in Scotland, the electrical provisions of the building regulations applicable in Scotland, with respect to the installation of the boiler in a room containing a bath or a shower. Where the installation of the boiler will be in an unusual position, special procedures may be necessary and BS5376:2 and BS5546 give detailed guidance on this aspect. A cupboard or compartment used to enclose the boiler must be designed and constructed specifically for this purpose. An existing cupboard or compartment may be used provided that it is modified for the purpose. Details of essential features of cupboard/compartment design including airing cupboard installations are given in BS5376:2 and BS5546. Boiler dimensions, minimum clearances and connection details are shown in frames 1, 12 and18: Fit one or more drain cocks to enable the water system to be fully drained. Note: THE PUMP MUST BE WIRED BACK TO THE BOILER, see wiring diagrams, frames 46 and 47. For low head system see frame45. Data Heat inputs and outputs together with burner setting pressures are given in frame 42.

the ¾ in connection under the boiler, and the temperature rise across the boiler is 11ºC (20º F). In the event of any fault occurring during the commissioning of the boiler a fault finding guide is available in the maintenance instructions. Page 2

SAFETY OF OPERATION THAT THE OUTER CASE IS PROPERLY FITTED. CHECK THAT THE FOUR CASE FIXING SCREWS ARE TIGHTENED SUFFICIENT TO COMPRESS THE SEALING GASKET. DO NOT RUN THE BOILER WITH THE CASE REMOVED. Back Page Page 11