Set Appliance State:
Mains Power Off
CH Demand
Selector switch to DHW and CH position
CH temperature selector to maximum
DHW temperature selector to minimum
CH temperature selector to maximum
DHW temperature selector to minimum
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow burner to ignite and observe system pressure gauge as the system heats.
The gauge should show approximately 1.5bar when the boiler is cold, this should rise slowly to around 2bar as the water in the system heats and expands.
Does the system pressure react as above?
The gauge should show approximately 1.5bar when the boiler is cold, this should rise slowly to around 2bar as the water in the system heats and expands.
Does the system pressure react as above?
Isolate as per TOPs P4
and refit as necessary