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Thread: Mitsubishi Heavy Industries HELP
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24-07-2006, 10:52 PM #1
Mitsubishi Heavy Industries HELP
First split I've ever put in, but i'm a bit confused, The felx cable fromt he indoor unit, I take it this is a the power cord and it needs a 3 core + earth to link the two together ???? Not to clear in the instructions
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24-07-2006, 10:55 PM #2
Re: Mitsubishi Heavy Industries HELP
WHOA!, STOP!
Just read the installation instructions carefully.
Normally, but not absolute, power to outdoor unit, link power from outdoor to indoor unit; separate cable with control connection between indoor and outdoor unit.
If you can give details of the model then we might be able to provide more detailed information.Brian - Newton Abbot, Devon, UK
Retired March 2015
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24-07-2006, 11:00 PM #3
Re: Mitsubishi Heavy Industries HELP
its a srk 28,
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24-07-2006, 11:00 PM #4
Re: Mitsubishi Heavy Industries HELP
It has a flex hard wired in and there is a 4 point terminal block on both the indoor and outdoor units
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24-07-2006, 11:16 PM #5
Re: Mitsubishi Heavy Industries HELP
A lot of the newer smaller splits have the mains into the indoor and then to the outdoor.
If there is a flex coming out of the indoor unit, this would lead me to believe that this is the case here.
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24-07-2006, 11:45 PM #6
Re: Mitsubishi Heavy Industries HELP
Originally Posted by Bakerbj
Connect 4 core cable which you will supply your self from the indoor unit to the outdoor compressor. They are number 1,2,3,4 in both units.
Hope this helps.
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24-07-2006, 11:47 PM #7
Re: Mitsubishi Heavy Industries HELP
Which SRK28 is it ZD (Inverter)?
Are you saying...
Mains feed into the Inside Unit from power supply,
Then Live, Neutral, Control and earth to the Outside unit?
Thats opposite to the Daikin method?
So surely both cables would need to be at least 2.5mm. Low power unit fed first? Full load runs via the inside unit?
Still needs local emergency isolation close to the outside unit (20a Disconnector switch) Breaking only Live an Neutral? (Not earth & control wire) of the linking cable.
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24-07-2006, 11:48 PM #8
Re: Mitsubishi Heavy Industries HELP
thanks for that, didn't want to make a tit of my self o nthe first job. Also in the instructions is says to lag both the liquid and gas pipes in the same insulation ? shouldnt they be seperatly lagged ?
Last edited by Bakerbj; 25-07-2006 at 12:03 AM.
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25-07-2006, 07:08 AM #9
Re: Mitsubishi Heavy Industries HELP
Originally Posted by mick2me
Local isolation at the outdoor is necessary to comply with BS7671.
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25-07-2006, 11:17 AM #10
Re: Mitsubishi Heavy Industries HELP
Originally Posted by frank
If I ever get this Daikin installed, A Mitsubishi SRK**ZD may be my purchase, for upstairs.
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26-07-2006, 03:18 PM #11
Re: Mitsubishi Heavy Industries HELP
Installed it and work a treat, the cable is the power cable. H*P said you can just stick a 13a plug on the end, but i wired into a fused spur
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