Bidets : Subject to local Water Company regulations the supply of hot and cold mains water direct to a bidet is
permitted if it is of 'over-rim flushing' type. The outlets should be shrouded and it should not be possible to
temporarily attach a hand held spray. An anti-syphon device is unnecessary.
Fixed head showers : Thermostatically controlled showers are recommended for greater comfort and
prevention of high temperature. An anti-syphon device in unnecessary.
Flexible head showers : It must not be possible for head to fall closer than 25mm above the top edge of the
bath to prevent immersion in it, or the shower must be fitted with an anti-syphon device at the connection to
the flexible hose.
4:8 CONNECTIONS TO THE BOILER
Connection to the Boilers 15mm and 22mm pipes should be made using compression fittings, either elbow or
straight couplings can be used dependent on installation.
4:8.1 Cold Mains In
To achieve optimum flow rates the incoming cold should be 22mm pipe reduced to 15mm to suit the Boilers
pipe.
4:8.2 Domestic Hot Water
To achieve optimum flow rates the 15mm domestic hot water flow from the Boiler should be increased to
22mm.
4:8.3 Heating Connection
The Boilers heating flow and return pipes are 22mm.
4:8.4 Pressure Relief Valve Connection
The Boilers Pressure Relief outlet pipe is 15mm. The installations connecting pipe work to a suitable Tundish
must be in accordance with G3 Building Regulations (
see Fig. 3b).
Page 16
4:9 FLUE EXHAUST
The flue exhaust pipe is supplied with the boiler-
see Fig 4.9
Page 23 of 57
Installation & maintenance manual for Camray 5 Combi External Boilers
14/04/2005
file://D:\PL61500\PL61500.htm
