ABOUT YOUR WATER HEATER
8
Note:
When a temperature limiting device is fitted to the hot water pipe work
downstream of a Rheem Stellar 330 stainless steel model or if the water heater
is installed as part of a circulated flow and return system, the dial of the water
heater‟s adjustable water mixing valve must be set on position „5‟.
Setting the Adjustable Dial
To set the adjustable dial:
1.
Ensure the water in the storage
cylinder is at the thermostat
‟s selected
temperature.
Turn on a hot tap and allow to run
until the burner comes on.
Turn off the hot tap and wait for
the burner to extinguish.
The water temperature is now up
to the thermostat setting.
2.
Close the cold water isolation valve at
the inlet to the water heater.
Caution:
The cold water supply to the water heater must be turned off and
pressure relieved from the water heater prior to adjusting the water mixing
valve. Damage can result to the valve if it is adjusted whilst subject to
mains pressure.
3.
Either open a hot water tap or operate the easing lever on the temperature
pressure relief valve (refer to
“Temperature Pressure Relief Valve”
on
page 14) and let the water run until there is little or no flow. Close the tap
or lower the easing lever gently.
This will relieve the pressure in the system.
4.
Insert a large flat bladed screwdriver into the slot on the adjustment dial
and rotate the dial anticlockwise to decrease or clockwise to increase the
delivered water temperature.
Each number represents a temperature difference of approximately 5°C.
5.
Open the cold water isolation valve at the inlet to the water heater.
6.
Open a hot water tap and let the water flow for two (2) to three (3) minutes.
7.
Using a thermometer, measure the water temperature at the opened tap.
If the measured water temperature is as desired, the water mixing valve is
correctly set.
If the measured water temperature is not as expected, repeat steps 1 to 7
until the desired water temperature is obtained.
adjustment
dial
