Set Appliance State:
Mains Power Off
CH Demand
DHW Selector in Minimum (-) position
CH Selector in Maximum (+) position
ON/OFF Switch in ON position
DHW Selector in Minimum (-) position
CH Selector in Maximum (+) position
ON/OFF Switch in ON position
Loosen the outlet test point screw (P2) and attach U-gauge to the test point.
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Allow boiler to fire.
Does the burner pressure increase to its set pressure after
approximately 90 seconds?
Does the CH system begin heating correctly?
Note: If the CH burner pressure has been set at its minimum
rate, then the burner pressure will not increase.
When the U-gauge is removed, ensure the pressure test
point is checked for soundness.
Does the burner pressure increase to its set pressure after
approximately 90 seconds?
Does the CH system begin heating correctly?
Note: If the CH burner pressure has been set at its minimum
rate, then the burner pressure will not increase.
When the U-gauge is removed, ensure the pressure test
point is checked for soundness.
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