To turn off the water heater – AquaMAX CG20 Series User Manual
Page 55
COMMISSIONING
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13.
if the water temperature is still below:
48°C (if a temperature controller is to be connected), or
50°C (if no temperature controller is to be connected)
and requires to be increased, repeat steps 10 to 12, followed by steps 2 to 5 until an acceptable
water temperature not exceeding 48°C or 50°C respectively is measured at the same hot tap.
if the water temperature exceeds 48°C or 50°C respectively then;
switch DIP SWITCH 3 to the on (up) position on the I.C. Board.
press the MIN button once to decrease the preset outlet temperature setting to the next
increment.
Each press of the MIN button will decrease the preset temperature by one increment.
The MIN button is located above the DIP switches.
Switch DIP SWITCH 3 to the off (down) position on the I.C. Board.
repeat steps 2 to 5 to confirm the water temperature does not exceed 48°C or 50°C
respectively.
14.
Switch off the electrical supply at the power outlet to the water heater.
15.
Reconnect the controller cables (if a temperature controller is fitted), by following step 4 of the procedure
“Connecting the Controller(s) to the Water Heater”
on page 45.
16.
Refit the front panel and screws to the water heater.
17.
Switch on the electrical supply at the power outlet to the water heater.
TO TURN OFF THE WATER HEATER
If it is necessary to turn off the water heater on completion of the installation, such as on a building site or
where the premises is vacant, then:
Turn off the controllers(s) (if fitted) by pressing the on / off button.
The light in the on / off button will go out and the priority light, if it is on, will go out.
Switch off the electrical supply at the power outlet to the water heater (refer to note below).
Close the gas isolation valve at the inlet to the water heater.
Close the cold water isolation valve at the inlet to the water heater.
Drain the water heater if there is a risk of freezing conditions occurring.
Refer to
on page 56.
Notes:
The frost protection system will be rendered inoperable if electrical power is not available at the water
heater.
Damage caused by freezing due to the unavailability of power at the water heater is not covered by the
Aquamax warranty (refer to
“Terms of the Aquamax Warranty”
on page 59).
If the power has been switched off to the water heater and there is a risk of freezing, then it is necessary
to drain the water heater (refer to
on page 56).