Mitsubishi Electric PUHY-P200 Service Handbook page 71

[3-3 Functions of the Major Components of Outdoor Unit ]
Part Symbols
name (functions)
Thermis- TH4
tor (Discharge)
TH2
TH3
(Pipe
temperature)
TH7
(Outdoor
temperature)
TH5
TH6
TH9,11
THHS
Inverter
heat sink
temperature
THL DCL
temperature
HWE14040
Notes Usage
1) Detects discharge air temper-
ature
2) Provides high-pressure pro-
tection
0°C[32°F] :698 kΩ
10°C[50°F] :413 kΩ
20°C[68°F] :250 kΩ
30°C[86°F] :160 kΩ
40°C[104°F] :104 kΩ
50°C[122°F] : 70 kΩ
60°C[140°F] : 48 kΩ
70°C[158°F] : 34 kΩ
80°C[176°F] : 24 kΩ
90°C[194°F] :17.5 kΩ
100°C[212°F] :13.0 kΩ
110°C[230°F] : 9.8 kΩ
LEV 1 is controlled based on the
TH2, TH3, and TH6 values.
1) Controls frequency
2) Controls defrosting during
heating operation
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.
Determines the completion of
Continuous heating cycle mode.
Controls inverter cooling fan
based on THHS temperature
DCL overheat protection
Specifications
Degrees Celsius
R = 7.465k
120
R = 4057
25/120
R =
t
7.465 exp
4057
Degrees Celsius
R = 15k
0
R = 3460
0/80
exp
R = 15
3460
t
0°C[32°F] :15 kΩ
10°C[50°F] :9.7 kΩ
20°C[68°F] :6.4 kΩ
25°C[77°F] :5.3 kΩ
30°C[86°F] :4.3 kΩ
40°C[104°F] :3.1 kΩ
Degrees Celsius
R = 17k
50
R = 4016
25/120
exp
R = 17
4016
t
0°C[32°F] :161 kΩ
10°C[50°F] :97 kΩ
20°C[68°F] :60 kΩ
25°C[77°F] :48 kΩ
30°C[86°F] :39 kΩ
40°C[104°F] :25 kΩ
Degrees Celsius
R = 3.3k
100
B = 3970
0/100
R = 3.3 exp
3970
t
0°C[32°F] :162.2 kΩ
10°C[50°F] :98.3 kΩ
25°C[77°F] :49.1 kΩ
50°C[122°F] :17.6 kΩ
100°C[212°F] :3.3 kΩ
- 62 -
Check method
Resistance check
1 1
393
Resistance check
1 1
273
1 1
323
1 1
373
GB