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NoNickName
15-04-2013, 04:27 PM
Anyone tried that?
Or is there any paper from Mitsi to make a parallel connection between two condensing units? I tried their website with no avail.

AbsoluteWDJ
15-04-2013, 08:18 PM
Anyone tried that?
Or is there any paper from Mitsi to make a parallel connection between two condensing units? I tried their website with no avail.

Do you mean give each one a refrigerant address linking both indoors onto one controller?

install monkey
15-04-2013, 08:35 PM
no info on the installation or service manual- but as theres no oil equalising line then id say you cant pair condensers

install monkey
15-04-2013, 08:37 PM
also power inverter systems connected to 1 par 21/30 controller are addressed on the outdoor unit

stufus
16-04-2013, 06:46 PM
It can be done , it is used for the pea-rp400 &500 indoor units.
The indoor unit basically has two control boards that work in tandem depending on load requirements.
Only ever seen it used once and that was about 6 years ago.

https://docs.google.com/viewer?a=v&q=cache:C-f09WkImYsJ:www.ventrade.ru/netcat_files/1617/780/h_3a24c6841434b6877f55db5e93ad6efd+&hl=en&gl=ie&pid=bl&srcid=ADGEEShJu6YI8Me46gW3pPzQMGs2D5s9jt87-4yL-7oytLL8q-0QQGcjltn44S3tw4zCtFzRJv4musJOdPFoO35M6o54iZ6k1QH75tqghPHwZVlAC2x5VcUcy7LcczI6M0-aiVrhR4IR&sig=AHIEtbQk_Njwebvy9teA0kJU65lZxDZdQg

Cheers
Stu

NoNickName
18-04-2013, 11:37 AM
Thanks, stu and monkey.
PUHZ not having the oil equalising line, do the pea-rp400/500 have two separate refrigerant circuits then?