Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Boiler DHW thermostat set to MAX
Attach U gauge to burner pressure test point
Hot water tap ON and fully open
Attach U gauge to burner pressure test point
Hot water tap ON and fully open
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow the burner to ignite and the boiler to run in DHW mode and observe the U gauge.
When the burner pressure has risen to maximum reduce the
flow rate at the tap to 6 l/min and observe the U gauge.
The burner pressure should slowly start to reduce as the temperature
demand is met (modulation).
Does the burner pressure modulate as described?
When the burner pressure has risen to maximum reduce the
flow rate at the tap to 6 l/min and observe the U gauge.
The burner pressure should slowly start to reduce as the temperature
demand is met (modulation).
Does the burner pressure modulate as described?
