Set Appliance State:
Mains Power Off
CH Demand
DHW Selector in Minimum (-) position
CH Selector in Maximum (+) position
ON/OFF Switch in ON position
DHW Selector in Minimum (-) position
CH Selector in Maximum (+) position
ON/OFF Switch in ON position
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Allow boiler to ignite and CH system to heat.
Monitor the system pressure gauge as the system heats up.
Does the system pressure remain constant at about 1 bar as the central heating heats up?
Monitor the system pressure gauge as the system heats up.
Does the system pressure remain constant at about 1 bar as the central heating heats up?
Isolate as per TOPs P4
and refit as necessary