Справочник Пользователя для Rheem Water Heater

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CONNECTIONS – PLUMBING 
41 
RELIEF VALVE 
The temperature pressure relief valve is shipped behind the front cover of the 
solar storage tank. This valve must be fitted before the water heater is 
operated. Before fitting the relief valve, make sure the probe has not been bent. 
Seal the thread with Teflon tape - never hemp. Make sure the tape does not 
hang over the end of the thread. 
 
Screw the valve into the correct opening 
 leaving the valve outlet pointing downwards. Do not use a wrench on 
the valve body - use the spanner flats provided. 
 
RELIEF VALVE DRAIN 
A copper drain line must be fitted to the relief valve to carry the discharge clear 
of the water heater. Connect the drain line to the relief valve using a 
disconnection union. The pipe work from the relief valve to the drain should be 
as short as possible and fall all the way from the water heater with no 
restrictions. It should have no more than three right angle bends in it. Use 
DN15 pipe. 
 
The outlet of the drain line must be in such a position that flow out of the pipe 
can be easily seen (refer to AS/NZS 3500.4) - but arranged so hot water 
discharge will not cause injury, damage or nuisance. The drain line must 
discharge at an outlet or air break not more than 9 metres from the relief valve. 
 
In locations where water pipes are prone to freezing, the drain line must be 
insulated and not exceed 300 mm in length. In this instance, the drain line is to 
discharge into a tundish through an air gap of between 75 mm and 150 mm. 
 
 Warning: As the function of the temperature pressure relief valve on this 
water heater is to discharge high temperature water under certain conditions, it 
is strongly recommended the pipe work downstream of the relief valve be 
capable of carrying water exceeding 93
°C. Failure to observe this precaution 
may result in damage to pipe work and property.