Set Appliance State:
Mains Power Off
Turn Hot Water Tap On
Gas On; Pilot On
Boiler On/Off Switch OFF
CH Switch OFF
DHW Switch in INSTANT position
Boiler On/Off Switch OFF
CH Switch OFF
DHW Switch in INSTANT position
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Switch on the boiler ON/OFF switch while observing the pump flow valve spindle.
With the DHW demand the pump flow valve spindle should fully extend and operate stage 1 of the gas valve.
With the DHW demand the pump flow valve spindle should fully extend and operate stage 1 of the gas valve.
