Gledhill High Efficiency Condensing Boiler - Gledhill Spare Parts

INSTALLATION DESIGN AND PLANNING INFORMATION3.5.3. Gledhill BoilerMate OV Heating SystemThe Gledhill Boiler is also suitable for use with a Gledhill BoilerMate OV;an integrated open vented heating system and mains pressure hot waterappliance. This appliance is supplied with factory fitted and wired systemcontrols and equipment e.g. pumps, valves etc. The BoilerMate OV uses adirectly heated open vented primary store and is suitable for only ventedheating systems as shown schematically in diagram 3.7. For further detailsrefer to Gledhill BoilerMate OV manual.The BoilerMate OV acts as the neutral point of the system and therefore thecold feed and open vent must be piped to the appropriate connections onthe BoilerMate OV.A draining tap conforming to the current issue of BS 2879, must be providedat the lowest point of the system, which will allow the entire central heatingand hot water system to be drained.The overflow/warning pipe should be in 20mm internal diameter pipe ofsuitable material for use in heating systems in accordance with BS 5449 (such ascopper). It should have continuous fall and discharge in a conspicuous externalposition. It should not have any other pipework directly branched into it.The height of the F & E cistern above the BoilerMate OV should not be greaterthan 10m and the water level in the F & E cistern should be at least 450mmabove the highest point on the system including the radiatorsWarning/Overflow pipeMainscold supplyRemoteF &E CisternOpen ventCold feed250mmHighest pointof the systemBoilerMateFlowReturnBoiler•No bypass is required in the boiler circuit•Bypass valve on heating circuit not required unless the heatingcircuit incorporates 2-port zone valve or TRVs on all radiators Page 14