Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Turn Hot Water Tap On
DHW temperature control to maximum
CH temperature control to minimum
DHW temperature control to maximum
CH temperature control to minimum
Connect the air pressure switch charge kit to +ve connection on the air pressure switch
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Note the operating pressure indicated on the pressure switch.
Allow fan to run for a few seconds then increase the pressure via the syringe to that indicated on the pressure switch.
Sparking should then be observed at the electrodes.
Note:
If continuity is not obtained it is permissible to increase the pressure by 50%.
100 Pascals = 1mbar / 50 Pascals = 0.5mbar
Allow fan to run for a few seconds then increase the pressure via the syringe to that indicated on the pressure switch.
Sparking should then be observed at the electrodes.
Note:
If continuity is not obtained it is permissible to increase the pressure by 50%.
100 Pascals = 1mbar / 50 Pascals = 0.5mbar
