Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Gain access to controller interface PCB
Observation:
What type of external controls are fitted 240V, 24V or EBUS ?
OBSERVATION WHICH TYPE OF EXTERNAL CONTROLS ARE FITTED
240V controls are wired into 'Enable' terminals,
'OT' terminals will also be fitted with a link wire.
'OT' terminals will also be fitted with a link wire.
24V controls are wired into 'OT' terminals.
EBUS controls connect to 'BUS SCU' terminal.