Set Appliance State:
Mains Power Off
Gas On; Pilot On
CH Demand
Selector switch to CH CONTINUOUS position
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow boiler to fire and CH system on heat while monitoring the system pressure gauge.
Does the system pressure remain stable? (Minimum CH system pressure 1 bar)
Note:
If power has been switched off or CH demand has been interrupted, there will be a delay of between 1 and 3 minutes before the boiler starts.
Does the system pressure remain stable? (Minimum CH system pressure 1 bar)
Note:
If power has been switched off or CH demand has been interrupted, there will be a delay of between 1 and 3 minutes before the boiler starts.
Isolate as per TOPs P4
and refit as necessary