Set Appliance State:
Turn Hot Water Tap On
Isolate Mains Power to appliance as per TOPs P4
Selector switch to WATER
Selector switch to WATER
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Does CH pump run under DHW demand for longer than approximately 2 seconds?
Do not take noise or vibration as a sign that the pump is running.
Note:
On start up both pumps are energised as a safety check.
If pump vent plug is removed to observe pump shaft rotating, care should be taken that water does not drip on electrical components.
Do not take noise or vibration as a sign that the pump is running.
Note:
On start up both pumps are energised as a safety check.
If pump vent plug is removed to observe pump shaft rotating, care should be taken that water does not drip on electrical components.
Isolate as per TOPs P4
and refit as necessary