Results 1 to 6 of 6
-
25-07-2021, 05:35 PM #1
Mitsubishi MUZ-GE25va(charge question)
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
-
25-07-2021, 08:12 PM #2
Re: Mitsubishi MUZ-GE25va(charge question)
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.
-
25-07-2021, 08:12 PM #3
Re: Mitsubishi MUZ-GE25va(charge question)
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.Brian - Newton Abbot, Devon, UK
Retired March 2015
-
26-07-2021, 06:37 PM #4
Re: Mitsubishi MUZ-GE25va(charge question)
Thanks for the clarification chaps.
:-)
-
01-12-2021, 07:18 PM #5
Re: Mitsubishi MUZ-GE25va(charge question)
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
-
02-12-2021, 11:12 AM #6
Re: Mitsubishi MUZ-GE25va(charge question)
It'll be the same as before, one way only.
Health and safety first..........unless I'm in a hurry.