Mitsubishi Electric PUHY-P120YHMU-A, Service Manual

Page: 151 / 326

[
VIII
Test Run Mode ]
- 142 - HWE0804A GB
(2) Heating operation
Operation
Outdoor unit model
PUHY-P264TSHMU-A
PUHY-P72THMU-A PUHY-P72THMU-A
PUHY-
P120THMU-A
Operating
conditions
Ambient
tempera-
ture Indoor
DB/WB
21.1°C/ - [70°F/ - ]
Outdoor
8.3°C/6.1°C [47°F/43°F]
Indoor
unit
No. of connected
units
Unit
6
No. of units in opera-
tion
6
Model - 36/36/48/48/48/48
Piping
Main pipe
m [ft]
5 [16-3/8]
Branch pipe 10 [32-3/4]
Total pipe length 65 [213-1/4]
Fan speed - Hi
Amount of refrigerant
kg
[lbs-oz] 31 [ 68]
Outdoor
unit
Electric current A 59.2
Voltage V 230
Compressor frequency Hz 53 53 77
LEV open-
ing
Indoor unit
Pulse
332/332/406/406/406/406
SC (LEV1) 0 0 0
LEV2 1400 1400 1400
Pressure
High pressure (after O/S)/low
pressure (before accumulator) MPa
[psi]
2.63/0.66 2.63/0.66 2.63/0.66
[381/96] [381/96] [381/96]
Temp. of
each sec-
tion
Outdoor
unit
Discharge (TH4)
°C [°F]
72 [162] 72 [162] 70 [158]
Heat exchanger out-
let (TH3)
0 [32] 0 [32] -1 [30]
Accumulator inlet 0 [32] 0 [32] -1 [30]
Accumulator outlet 0 [32] 0 [32] -1 [30]
Compressor inlet 0 [32] 0 [32] -1 [30]
Compressor shell
bottom
40 [104] 40 [104] 40 [104]
Indoor
unit
LEV inlet 36 [97] 36 [97] 36 [97]
Heat exchanger
inlet
70 [158] 70 [158] 69 [156]