Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Attach U gauge to inlet pressure test point
Ensure no other gas appliances are in operation
Ensure no CH demand
Ensure no other gas appliances are in operation
Ensure no CH demand
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow the appliance to run in DHW mode and the burner to ignite and establish.
Monitor the U gauge and press the mode button once to switch the appliance to CH mode only.
(The tap and eco symbols will disappear from the display)
The gauge should return to standing pressure within a couple of seconds of the demand ending.
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Monitor the U gauge and press the mode button once to switch the appliance to CH mode only.
(The tap and eco symbols will disappear from the display)
The gauge should return to standing pressure within a couple of seconds of the demand ending.
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Isolate as per TOPs P4
and refit as necessary