Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Remove plus and minus tubes from APS taking note of their positions
Note the operating pressure indicated on the pressure switch. Connect the air pressure switch charge test kit to P1 (+ve connection) on the air pressure switch
Note the operating pressure indicated on the pressure switch. Connect the air pressure switch charge test kit to P1 (+ve connection) on the air pressure switch
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow boiler to start the pump and fan, then increase the pressure
with the syringe to that indicated on the pressure switch, when
you reach the pressure indicated sparking should occur.
Note:
If sparking is not obtained, it is permissible
to increase the pressure by 50%
100 Pascals = 1mbar / 50 Pascals = 0.5mbar
with the syringe to that indicated on the pressure switch, when
you reach the pressure indicated sparking should occur.
Note:
If sparking is not obtained, it is permissible
to increase the pressure by 50%
100 Pascals = 1mbar / 50 Pascals = 0.5mbar
Isolate as per TOPs P4
and refit as necessary