Technical data

LIGHTING THE WATER HEATER
40
BURNER PRESSURE ADJUSTMENT
Switch off the electrical supply at the isolating switch.
Attach a manometer to the test spigot at side of gas control.
Switch on the electrical supply at the isolating switch.
Check the gas pressure (refer to data plate).
If necessary adjust the regulator under the cap on top of the gas control.
AIR ADJUSTMENT
The normal setting is to have the interrupter screw clear of the burner throat for Natural and LP gases. For
some Town and TLP gases, the screw may need to be closed slightly to prevent flame lift-off or burning back
inside burner tube.
DRAINING THE WATER HEATER
Warning: Exercise care, as water discharged from the water heater may be of a very high temperature.
To drain the water heater:
Turn off the water heater (refer to “To Turn Off The Water Heater” on page 37).
Close all hot water taps.
Operate the relief valve release lever - do not let the lever snap back or you will damage the valve seat.
Operating the lever will release the pressure in the water heater.
Attach a hose to the water heater drain cock.
Let the other end of the hose go to a drain.
Open the drain cock.
Operate the relief valve again.
This will let air into the water heater and allow the water to drain through the hose.