Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Slacken the upper test point screw of the Gas Valve and attach a U-gauge.
Selector switch to DHW and CH position
CH temperature selector to maximum
DHW temperature selector to minimum
Ensure CH system is cool
Selector switch to DHW and CH position
CH temperature selector to maximum
DHW temperature selector to minimum
Ensure CH system is cool
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow fan to run and ignition sequence to commence.
Does the burner ignite at approximately 2.1mb and then slowly ramp up to full pressure over the next 10 to 20 seconds?
Note:
When U-gauge is removed the test point should be tightened and checked for gas soundness.
Does the burner ignite at approximately 2.1mb and then slowly ramp up to full pressure over the next 10 to 20 seconds?
Note:
When U-gauge is removed the test point should be tightened and checked for gas soundness.
