Loading ...
Loading ...
Loading ...
CONNECTIONS – PLUMBING
27
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 used to allow servicing and removal of the water heater.
Note: Refer to the Gas Installations Standard AS 5601 or AS/NZS 5601.1 for the correct method of sizing the
gas supply pipe to the water heater. The pipe size selection must take into account the gas input of this water
heater (refer to table on page 24) as well as all of the other gas appliances in the premises.
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. The Rheem
warranty does not cover damage of any nature resulting from failure to observe this precaution. Refer to rating
label for gas types and pressures.
Ensure the gas line is also purged at the union of the gas control. If this procedure is not followed, a retry
lockout (i.e. single flashes on control module) may result on initial start-up.
The HSI system has a flame sensing period of 3 seconds from the time the gas valve opens. If the burner
flame is not sensed during this period, a five (5) minute waiting period follows so any unburnt gas can escape
before a second and third burner ignition is automatically attempted.
If the third attempt is also unsuccessful, the system enters the re-ignition attempt lockout mode. To reset the
water heater, switch the electrical supply off at the isolating switch, wait ten seconds then switch on again. If
the water heater fails to light, phone Rheem Service or their nearest Accredited Service Agent to arrange for
an inspection.
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 the Rheem warranty. Damaged
valves must be replaced.
Loading ...
Loading ...
Loading ...