Set Appliance State:
Mains Power Off
Turn Hot Water Tap On
DHW temperature control to maximum
CH temperature control to minimum
DHW temperature control to maximum
CH temperature control to minimum
Loosen the outlet test point screw (P2) and attach U-gauge to the test point.
Set flow rate at tap to approximately 5 l/min
Set flow rate at tap to approximately 5 l/min
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Allow burner to fire and water to heat.
Does the burner pressure modulate as the water temperature is
satisfied?
Note: When the U-gauge is removed, ensure the pressure test
point is checked for soundness.
Does the burner pressure modulate as the water temperature is
satisfied?
Note: When the U-gauge is removed, ensure the pressure test
point is checked for soundness.
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Isolate as per TOPs P4
and refit as necessary