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.
INSPECTION FLOW AND RETURN ISOLATION VALVES
Note:
The valves are fully open when this line on the valve is in line with the pipe.
The valves are fully open when this line on the valve is in line with the pipe.