Mitsubishi Electric PUHY-P200 Service Handbook page 89

[ VI Refrigerant Circuit ]
Part Symbols
name (functions)
Thermis- TH4
tor (Discharge)
TH2
TH3
(Pipe
temperature)
TH7
(Outdoor tem-
perature)
TH5
TH6
THHS
Inverter
heat sink tem-
perature
HWE10040
Notes Usage
1) Detects discharge air temper-
ature
2) Provides high-pressure pro-
tection
0°C[32°F] :698kohm
10°C[50°F] :413kohm
20°C[68°F] :250kohm
30°C[86°F] :160kohm
40°C[104°F] :104kohm
50°C[122°F] : 70kohm
60°C[140°F] : 48kohm
70°C[158°F] : 34kohm
80°C[176°F] : 24kohm
90°C[194°F] :17.5kohm
100°C[212°F] :13.0kohm
110°C[230°F] : 9.8kohm
LEV 1 is controlled based on the
TH2, TH3, and TH6 values.
1) Controls frequency
2) Controls defrosting during
heating operation
3) Detects subcool at the heat
exchanger outlet and controls
LEV1 based on HPS data
and TH3 data
1) Detects outdoor air tempera-
ture
2) Controls fan operation
LEV2 are controlled based on the
63LS and TH5 values.
Controls LEV1 based on TH2,
TH3, and TH6 data.
Controls inverter cooling fan
based on THHS temperature
- 80 -
Specifications
Degrees Celsius
R = 7.465k
120
R = 4057
25/120
R =
t
1 1
7.465 exp
4057
393
Degrees Celsius
R = 15k
0
R = 3460
0/80
1 1
R = 15 exp
3460
t
273
0°C[32°F] :15kohm
10°C[50°F] :9.7kohm
20°C[68°F] :6.4kohm
25°C[77°F] :5.3kohm
30°C[86°F] :4.3kohm
40°C[104°F] :3.1kohm
Degrees Celsius
R = 17k
50
R = 4016
25/120
1 1
R = 17 exp
4016
t
323
0°C[32°F] :161kohm
10°C[50°F] :97kohm
20°C[68°F] :60kohm
25°C[77°F] :48kohm
30°C[86°F] :39kohm
40°C[104°F] :25kohm
Check method
Resistance
check
Resistance
check
GB