Good^Man
24-06-2010, 08:52 PM
Hi there.
Could someone comment on these temperatures and pressures, please. ie if any look poor or if all okay:
There are 3x systems: The first one is R22 and the other two were converted to R417a/MO59. I just wanted to know if they are looking okay as regards these figures.
a) This R22 system seems a bit low on pressures and the FCU temperature differences look a bit shy at 8degC. Am I right that this system is short of gas?
R22 Mitsubishi Electric Twin System
PUH-4YKSA (3Ph)
Condenser on temp: 19 degC, off: 27 degC
Pressure HIGH Side: 12bar
Pressure LOW Side: 2.9bar
Current/Phase: 4 Amps
Cassette #1:
On temp: 19 degC, Off: 10.9 degC
Diff = 8.1 degC (weak?)
Cassette #2:
On temp: 19 degC, Off: 11.1 degC
Diff = 7.9 degC (weak?)
---------------------------------------------------
b) This next system is on R417a. Seems good with FCU temp differences of 12 degC but the pressures seem low-ish.
R417a Mitsubishi Electric Twin System
PUH-4YKSA (3Ph)
Condenser on temp: 22.8 degC, Off: 27 degC
Pressure HIGH Side: 11 bar
Pressure LOW Side: 2.2 bar
Current/Phase: 4 Amps
Cassette #1:
Model: PLH-3GKHB
On temp: 20 degC, Off: 7.8 degC
Diff = 12.2degC (good)
Cassette #2:
On temp: 21 degC, Off: 8.6 degC
Diff = 12.4 degC (good)
--------------------------------------------------
c) This R417a system seems barely okay with FCU temp differences of 10 degC and the pressures look low-ish, I think.
R417a Mitsubishi Electric Single System
Model: PUH-3YKA (3Ph)
Condenser on temp: 20.7 degC, Off: 29 degC
Pressure HIGH Side: 14.7bar
Pressure LOW Side: 1.9bar
Current/Phase: 4 Amps
Cassette:
On temp: 20.8 degC
Off temp: 11.3 degC
Diff = 9.5 degC (okay)
Any Comments please?
Could someone comment on these temperatures and pressures, please. ie if any look poor or if all okay:
There are 3x systems: The first one is R22 and the other two were converted to R417a/MO59. I just wanted to know if they are looking okay as regards these figures.
a) This R22 system seems a bit low on pressures and the FCU temperature differences look a bit shy at 8degC. Am I right that this system is short of gas?
R22 Mitsubishi Electric Twin System
PUH-4YKSA (3Ph)
Condenser on temp: 19 degC, off: 27 degC
Pressure HIGH Side: 12bar
Pressure LOW Side: 2.9bar
Current/Phase: 4 Amps
Cassette #1:
On temp: 19 degC, Off: 10.9 degC
Diff = 8.1 degC (weak?)
Cassette #2:
On temp: 19 degC, Off: 11.1 degC
Diff = 7.9 degC (weak?)
---------------------------------------------------
b) This next system is on R417a. Seems good with FCU temp differences of 12 degC but the pressures seem low-ish.
R417a Mitsubishi Electric Twin System
PUH-4YKSA (3Ph)
Condenser on temp: 22.8 degC, Off: 27 degC
Pressure HIGH Side: 11 bar
Pressure LOW Side: 2.2 bar
Current/Phase: 4 Amps
Cassette #1:
Model: PLH-3GKHB
On temp: 20 degC, Off: 7.8 degC
Diff = 12.2degC (good)
Cassette #2:
On temp: 21 degC, Off: 8.6 degC
Diff = 12.4 degC (good)
--------------------------------------------------
c) This R417a system seems barely okay with FCU temp differences of 10 degC and the pressures look low-ish, I think.
R417a Mitsubishi Electric Single System
Model: PUH-3YKA (3Ph)
Condenser on temp: 20.7 degC, Off: 29 degC
Pressure HIGH Side: 14.7bar
Pressure LOW Side: 1.9bar
Current/Phase: 4 Amps
Cassette:
On temp: 20.8 degC
Off temp: 11.3 degC
Diff = 9.5 degC (okay)
Any Comments please?