INSTALLATION
2.7The system vent should be a minimum diameter of 22mm and fitted with an air separation device.
2.8The Heat Sink (Slumber circuit) must be rated to suit the minimum heat output at slow running, and have no manual or automatic closing valves fitted.
2.9Thermostatic flow controls (90°C flow and 55°C return) should be fitted to the hot water system. These would override the manual pump switch to maintain an acceptable boiler temperature and ensure sufficient heat loss in an
2.10The system should operate between 60°C and 80°C and not be allowed to drop in temperature below 55°C. Large quantities of low temperature water passing through the boiler could cause condensation to form in the firebox of the stove, and shorten the life of the product.
2.11A indirect 190 litre (40 gallon) or larger hot water storage cylinder, with a double feed, complying to BS 1566 Part 1 type 10 should be fitted. This should be positioned vertically as near as possible to the appliance and with sufficient height to allow gravity flow. The water draw off pipes to the taps should be in a dead leg connection from the vent pipe.
2.12The water circuit must be fitted with suitable isolation and drain points to enable all water to be removed for maintenance purposes.
2.13If one flow and one return connection are to be used on the boiler use the connections that are diagonally opposite each other on the back of the boiler.
Electrical Supply
2.14Any electrical connections should comply with the requirements of the current Building and Wiring regulations.
2.15The connection to the mains supply should allow complete electrical isolation and only serve the heating circuit pump.
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