Set Appliance State:
Mains Power Off
CH Demand
Heating temperature selector to maximum
Hot water temperature selector to OFF
Hot water temperature selector to OFF
Gas On; Pilot On
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Allow boiler to fire and heat system
Monitor the system pressure gauge.
Does the system pressure remain constant at approximately 1 bar?
Note:
This test is for appliances fitted on sealed systems; if appliance is fitted to an open vent system, then select the "System pressure remains constant" option below.
Monitor the system pressure gauge.
Does the system pressure remain constant at approximately 1 bar?
Note:
This test is for appliances fitted on sealed systems; if appliance is fitted to an open vent system, then select the "System pressure remains constant" option below.
Isolate as per TOPs P4
and refit as necessary