Davger
02-03-2014, 09:35 PM
Hi guys
First post but found the site very useful in the past and very great full you guys help out.
My problem is a Mitsubishi electric outdoor model PURY-P250TMF-C it has has 5 indoor units and a BC controller CMB-1010V-F. Refrig-R407c
I have no history of the site but when I arrived I found the system tripped on investigation found a new compressor was required after metering out the inverter with an analog meter the inverter seemed in tact ( how hard is it to buy an analog meter now)
I fitted a new compressor and drier and charged the system. Seemed to be working ok suction pressure was sitting about 60/65 psi but after the accumulator I was getting hardly any cooling at the compressor suction. I left it run over night but when I got back next day found it tripped on 1501 no great surprise.
I know my charge is ok so I tried running it again I did get cooling back but the closer it got to the set point the less cooling I had at the compressor suction pressure stayed the same. The suction pipe did feel very cool but after the accumulator agin not much.
I decided to rob some parts off a unit beside it and changed LEV1 and LEV3 in the BC box it's just made it worse. Any help would be much appreciated I really don't have much experience this system and really struggling.
First post but found the site very useful in the past and very great full you guys help out.
My problem is a Mitsubishi electric outdoor model PURY-P250TMF-C it has has 5 indoor units and a BC controller CMB-1010V-F. Refrig-R407c
I have no history of the site but when I arrived I found the system tripped on investigation found a new compressor was required after metering out the inverter with an analog meter the inverter seemed in tact ( how hard is it to buy an analog meter now)
I fitted a new compressor and drier and charged the system. Seemed to be working ok suction pressure was sitting about 60/65 psi but after the accumulator I was getting hardly any cooling at the compressor suction. I left it run over night but when I got back next day found it tripped on 1501 no great surprise.
I know my charge is ok so I tried running it again I did get cooling back but the closer it got to the set point the less cooling I had at the compressor suction pressure stayed the same. The suction pipe did feel very cool but after the accumulator agin not much.
I decided to rob some parts off a unit beside it and changed LEV1 and LEV3 in the BC box it's just made it worse. Any help would be much appreciated I really don't have much experience this system and really struggling.