Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Adjust DHW flow rate to approx 6 litres/min
DHW Temperature Control set to MAX
Attach pressure gauge to gas valve pressure outlet test point
Selector Switch in Hot Water Position
DHW Temperature Control set to MAX
Attach pressure gauge to gas valve pressure outlet test point
Selector Switch in Hot Water Position
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow burner to ignite and establish.
After approximately 45 seconds turn the DHW potentiometer down towards minimum, does the burner pressure start modulate down as the temperature setting decreases?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
After approximately 45 seconds turn the DHW potentiometer down towards minimum, does the burner pressure start modulate down as the temperature setting decreases?
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