Set Appliance State:
Mains Power Off
CH Demand
CH Selector in Maximum position
ON/OFF Switch in ON position
Summer/Winter in Winter Position (IN)
Timer Set to ON Position
CH Selector in Maximum position
ON/OFF Switch in ON position
Summer/Winter in Winter Position (IN)
Timer Set to ON Position
| Ensure DHW heat exchanger is cool (this can be achieved by running the DHW with the gas turned off) |
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Allow boiler to fire and run for a few minutes.
Does the DHW Heat Exchanger remain cool?
Does the DHW Heat Exchanger remain cool?