Set Appliance State:
Isolate Mains Power to appliance as per TOPs P4
CH Demand
DHW Selector in Minimum (-) position
CH Selector in Maximum (+) position
ON/OFF Switch in ON position
Attach temperature clamp/probe on the flow pipe as close to the primary heat exchanger as possible
Attach temperature clamp/probe on return pipe above the pump
CH Demand
DHW Selector in Minimum (-) position
CH Selector in Maximum (+) position
ON/OFF Switch in ON position
Attach temperature clamp/probe on the flow pipe as close to the primary heat exchanger as possible
Attach temperature clamp/probe on return pipe above the pump
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Allow burner to ignite and CH to operate and reach a reasonable operating temperature, approximately 55°C.
Measure the temperature differential across the primary heat exchanger.
Expect approximately 20°C.
Measure the temperature differential across the primary heat exchanger.
Expect approximately 20°C.
