Справочник Пользователя для Rheem 300 series

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CONNECTIONS – PLUMBING 
21 
GAS INLET 
The gas connection is made to the left hand side of the gas control. The pipe 
work must be cleared of foreign matter before connection and purged before 
attempting to light the water heater. An isolation valve and disconnection union 
must be installed to allow servicing and removal of the water heater. Refer to 
the Gas Installations Standard AS 5601 for the correct pipe sizing. 
 
Warning: Always isolate the water heater before pressure testing the gas 
supply system. Disconnect the water heater after the isolating cock to prevent 
the risk of serious damage to the gas control. Warranty does not cover damage 
of any nature resulting from failure to observe this precaution. Refer to rating 
label for gas types and pressures. 
 
Caution: Care is necessary when tightening fittings into the gas valve. The gas 
valve casting may crack if the fittings are over tightened. Cracked valve 
castings are not covered under warranty. Damaged valves must be replaced. 
 
PIPE SIZES 
To achieve true mains pressure operation, the cold water line to the water 
heater should be the same size or bigger than the hot water line from the water 
heater. 
 
The pipe sizing for hot water supply systems should be carried out by persons 
competent to do so, choosing the most suitable pipe size for each individual 
application. Reference to the technical specifications of the water heater and 
local regulatory authority requirements must be made. 
 
RELIEF VALVE 
The temperature pressure relief valve is shipped in the carton with the draught 
diverter. 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 
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 leaving the valve outlet pointing downwards. Do not use a wrench on 
the valve body - use the spanner flats provided.