Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Attach temperature probe to CH flow pipe
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow appliance to complete its self check and the boiler to ignite and run for at least 30 seconds.
Access i14 (return temperature) on the display by pressing the spanner button and then the up arrow repeatedly.
Compare the temperature of the flow pipe measured by the clamp and the return temperature on the display.
Is the return temperature cooler than the flow temperature, or is the return temperature the same or greater than the flow pipe, signifying the auto bypass has opened.
Access i14 (return temperature) on the display by pressing the spanner button and then the up arrow repeatedly.
Compare the temperature of the flow pipe measured by the clamp and the return temperature on the display.
Is the return temperature cooler than the flow temperature, or is the return temperature the same or greater than the flow pipe, signifying the auto bypass has opened.
