Set Appliance State:
Mains Power Off
DHW Demand
DHW Selector in Maximum (+) position
CH Selector in Minimum (-) position
ON/OFF Switch in ON position
DHW Selector in Maximum (+) position
CH Selector in Minimum (-) position
ON/OFF Switch in ON position
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.
.gif)
Isolate as per TOPs P4
and refit as necessary