Set Appliance State:
Mains Power Off
CH Demand
CH Selector in Maximum position
ON/OFF Switch in ON position
Summer/Winter in Winter Position (IN)
Timer Set to ON Position
CH Selector in Maximum position
ON/OFF Switch in ON position
Summer/Winter in Winter Position (IN)
Timer Set to ON Position
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
With the boiler cool check the system pressure is 1-1.5bar.
Allow boiler to ignite and CH system to heat.
Monitor the system pressure gauge as the system heats up.
Does the system pressure rise steadily to around 2 bar then settle as the central heating heats up?
Allow boiler to ignite and CH system to heat.
Monitor the system pressure gauge as the system heats up.
Does the system pressure rise steadily to around 2 bar then settle as the central heating heats up?
Isolate as per TOPs P4
and refit as necessary