2. FOR THE INSTALLER
2.1Installation instructions
This water heater must be fitted in a location which will permit the provision os an approved flue system and ade- quate ventilation.
A service clearance of 15 cm at the sides and rear of the unit and 60 cm at the front of the unit should be allowed for ease of servicing. Adequate distance must be allowed between the top of the unit and any obstruction or ceiling to allow the flue baffle and anode to be inspected, cleaned or in the case of the anode replaced if necessary.
The water heater must stand on a level surface resistant to heat, insulted in accordance with local bylaws and Buil- ding Regulations 1985, with sufficient strength to support the weight of the unit when full of water.
This water heater must not be installed in a bathroom, bedroom or in a cup- board opening on to such rooms. This water heater must not be installed in any area where flamable materials are used or stored.
Insufficient ventilation may give rise to a risk of fire, explosion or suffocation. If in doubt consult the national and local regulations governing the installation of gas appliances or your British gas sevice department.
2.1.1 Installation
The installation of this water heater should be carried out by a suitably qualified competent person. It is a criminal offence for unqualified persons to install gas equipment.
Installation should be carried out in accordance with all local authority and Building Regualions, Model Water Bylaws, bylaws of the local water supplier, Building Standards (Scotland) (Consolidation) Regulations and any re- levant requirements of the Local Authority, local gas regions and the following British Standards (current editions):
For domestic applications:
BS 5440 - part 1 and part 2.
BS 5546 - Installation of gas hot water supplies for domestic purposes.
BS 6700 - Specifications for design, installation and maintenance of services supplying water for domestic use within buildings and their curtilages.
BS 6798 - Specification for installation of gas fired hot water boilers of rated input not exceeding 60 kW.
BS 6891 - Specification for installation of low pressure gas pipework of up to 28 mm in domestic premises.
For non-domestic applications:
BS 5400 - part 1 and part 2.
BS 6798 - Specification for installation
| of low pressure gas |
| pipework of up to 28 mm in |
| domestic premises. |
CP 342 | - Code of practice for |
| centralised hot water |
| supply part 2, buildings |
| other than individual |
| dwellings and the following |
| additional Codes of Practice. |
IM/2 | - Purging procedures for non- |
| domestic gas installations. |
IM/5 | - Soundness testing |
| procedures for industrial |
| and commercial gas |
| installations. |
IM/11 | - Flues for commercial and |
| industrial gas fired boilers |
| and air heaters. |
IM/16 | - Notes on installation of |
| pipework (excluding 25 mm |
| and below). |
Some chemicals produce vapours which can cause rapid failure of main- and pilotburners and storage tanks if they are drawn into the combustion air supply.
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