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Hi all
Just fitted a split unit as above,looking at the refrigerant charge chart.It gives the quantity for pipe length one way only.Are they already taking into account its x2,or do i have to x2.
Here's the link to the chart :-
https://www.manualslib.com/manual/11...page=20#manual
A previous Mitsubishi unit i fitted it just gave a simple per metre measurement.
Thanks all
Matt
Unit is charged for 7m.
Additional charge is 30g/m for any length over 7m. So for a 10m indoor/outdoor pipe length you would add 3 x 30g.
Additional charge is only measured on the liquid line.
This unit is also giving a simple per metre measurement.
Although this unit uses the entire pipework and indoor unit as the evaporator the suction pipe should be almost 100% vapour.
The discharge line to the indoor unit is is after the unit expansion device so could be considered to be in a mixed state. Therefore you only need to add refrigerant to maintain the required state in the discharge line.
Thanks for the clarification chaps.
:-)
Hi again
I'm fitting a toshiba unit now in the lounge ,its an rav-sm800,does the same apply,
this is the charge table http://www.toshiba-aircon.co.uk/asse...sion_11_5c.pdf
.so would be 40g/m one way,{i don't include the return,as it were}
in the installation it says total pipe length
https://www.manualslib.com/manual/92...?page=3#manual
It'll be the same as before, one way only.