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CISTERN FED INSTALLATION
3.2.10 This method of installation must be used if the outlet is to be
connected to one or more conventional taps. It is not
recommended for supplying a shower. Individual site
demands should be considered when choosing the number of
outlets to be served.
3.2.11 A vent pipe must be connected to the outlet of the heater.
The vent pipe must rise continuously and be arranged to
discharge into the cold water feed cistern.
The vent pipe must have a minimum bore of 19mm.
DO NOT connect any pressure relief device to the vent pipe of
this water heater.
3.2.12 The cold water supply must be from a cold water feed cistern
complying with Water Byelaw 30. The maximum head distance
must not exceed 20 metres.
3.2.13 It is recommended to fit a WRAS listed isolating valve on the cold
water inlet to simplify servicing.
3.2.14 The inlet must not be connected directly to the cold water
mains supply.
FIGURE 03: TYPICAL CISTERN FED INSTALLATION
UTC99
HEATER
7
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