Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Observation:
Inspect the flow and return isolation valves to ensure they are fully open.
Note:
The flow and return isolation valves are fully open when the screwdriver slot is in line with the pipe.
Note:
The flow and return isolation valves are fully open when the screwdriver slot is in line with the pipe.
