Hi,
I need to connect an air source heat pump outside. The rating plate lists the following info:
Voltage: 220V 1ph
Load: 2kW
Running Current: 9.5A
Breaker Size: 20A
Cable Dia: 4mm2
Now, knowing it was a 2kW unit, I cabled in 2.5mm SWA from the house to the install location (approx 15m) and put a 20A MCB protected by an RCD on the feed.
The unit's manual is stating 4mm2, but at 9.5A (and checking with various online resources on current vs wire size), 2.5mm or even 1.5mm would be suitable for this task, correct?
Please advise!
I need to connect an air source heat pump outside. The rating plate lists the following info:
Voltage: 220V 1ph
Load: 2kW
Running Current: 9.5A
Breaker Size: 20A
Cable Dia: 4mm2
Now, knowing it was a 2kW unit, I cabled in 2.5mm SWA from the house to the install location (approx 15m) and put a 20A MCB protected by an RCD on the feed.
The unit's manual is stating 4mm2, but at 9.5A (and checking with various online resources on current vs wire size), 2.5mm or even 1.5mm would be suitable for this task, correct?
Please advise!