AquaMAX G270VE Series User Manual
Page 36
35
Draining the Water Heater
Warning: Water discharged from the water heater during this
procedure may be of a very high temperature. Wear personal protective
equipment (PPE) to reduce the risk of scalding.
To drain the water heater:
1.
Ensure water heater is turned off and gas control is completely shut
down (refer to ‘Shut Down Procedure’ on page 8).
2.
Close cold water isolation valve on cold water line to water heater.
3.
Close all hot water taps in premises.
4.
Operate PTR valve lever for a period of five (5) seconds to release
pressure in water heater.
Note: Operate lever gently and do not let
lever snap back or you will damage relief valve seat.
5.
Undo union at cold water inlet to water heater and attach a hose to
water heater side of union. Run other end of hose to a drain.
6.
Operate PTR valve lever until all water has drained from water heater.
Operating PTR valve lever will let air into the water heater which will
allow water to drain through hose.