Hi all,
I had an split air conditioner installed last week by an electrician and commissioned by a Fgas Engineer.
The engineer who commissioned it was also an electrician and said that the electrician has used the wrong cable size.I am not sure who is correct specially when both of them are electricians.
The air conditioner specs from the manufacturer are:
7.1 kw (24000 BTU)
Fuse Required: 16A
#Rated Capacity(W) : Cooling:6810 (1830-7810) Heating 6870 ( 1850-7930)
#Power Input (W) : Cooling : 1980 (410-2800) Heating 2050 (420-3000)
#Current Input (A) :Cooling (8.9) Heating (9.0)
#Nominal Load (kw): Cooling (6.81) Heating (6.87)
The electrician has used 4mm twin earth and core and the total run of the cable is around 20 metre run through the floorboards and insulated roof. He has installed the cable directly from the consumer unit with a Type C Wylex mcb which is rated at 32A. This then goes in red rotary isolator outside near the external compressor.
The F-gas engineer said that the electrician should have used 6mm or even 10mm as there will be a voltage drop when the the compressor kicks in.When i spoke to the electrician he said that the air conditioner is inverter compressor(whatever that means) and the cable he has installed is ok.
I just want to know if the cable is at risk of burning down eventually due to it being wrong size, before asking the original electrician to come back and rectify the work.
I had an split air conditioner installed last week by an electrician and commissioned by a Fgas Engineer.
The engineer who commissioned it was also an electrician and said that the electrician has used the wrong cable size.I am not sure who is correct specially when both of them are electricians.
The air conditioner specs from the manufacturer are:
7.1 kw (24000 BTU)
Fuse Required: 16A
#Rated Capacity(W) : Cooling:6810 (1830-7810) Heating 6870 ( 1850-7930)
#Power Input (W) : Cooling : 1980 (410-2800) Heating 2050 (420-3000)
#Current Input (A) :Cooling (8.9) Heating (9.0)
#Nominal Load (kw): Cooling (6.81) Heating (6.87)
The electrician has used 4mm twin earth and core and the total run of the cable is around 20 metre run through the floorboards and insulated roof. He has installed the cable directly from the consumer unit with a Type C Wylex mcb which is rated at 32A. This then goes in red rotary isolator outside near the external compressor.
The F-gas engineer said that the electrician should have used 6mm or even 10mm as there will be a voltage drop when the the compressor kicks in.When i spoke to the electrician he said that the air conditioner is inverter compressor(whatever that means) and the cable he has installed is ok.
I just want to know if the cable is at risk of burning down eventually due to it being wrong size, before asking the original electrician to come back and rectify the work.
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