Set Appliance State:
Mains Power Off
Set Boiler Control Thermostat to MAX position
CH Demand
Ensure external controls are calling for heat
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Note:
This test is for appliances fitted on sealed systems only.
If the appliance is fitted on an open vented system select
'System pressure stable' to proceed to the next test.
Allow boiler to fire and the system to heat.
Observe the system pressure, does it remain stable at the system design pressure?
This is nominally 0.7-1.0 bar, however some systems may require different pressures and this should be investigated as necessary i.e. BS 5449.
This test is for appliances fitted on sealed systems only.
If the appliance is fitted on an open vented system select
'System pressure stable' to proceed to the next test.
Allow boiler to fire and the system to heat.
Observe the system pressure, does it remain stable at the system design pressure?
This is nominally 0.7-1.0 bar, however some systems may require different pressures and this should be investigated as necessary i.e. BS 5449.
