Set Appliance State:
Mains Power Off
DHW Demand
CH Demand OFF
Preheat Switched OFF (ECO in Display)
Preheat Switched OFF (ECO in Display)
Gas On
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Allow boiler to fire on DHW and flame to establish
Turn off DHW isolation valve under the appliance.
Observe the flame as the isolation valve is turned off
Does it extinguish straight after (within 2seconds) DHW isolated or does the burner show beads of gas still lit?
Turn off DHW isolation valve under the appliance.
Observe the flame as the isolation valve is turned off
Does it extinguish straight after (within 2seconds) DHW isolated or does the burner show beads of gas still lit?
