Mitsubishi Electric PURY-EP200YLM-A, Service Handbook

Page: 89 / 434

[3-3 Functions of the Major Components of Outdoor Unit ]
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HWE1314A GB
3-3 Functions of the Major Components of Outdoor Unit
Part
name
Symbols
(functions)
Notes Usage Specifications Check method
Com-
pressor
MC1
(Comp1)
Adjusts the amount of circulating
refrigerant by adjusting the operat-
ing frequency based on the oper-
ating pressure data
(E)200 - (E)250 models
Low-pressure shell scroll
compressor
wirewound resistance
20°C [68°F] : 0.72Ω
(E)300 - (E)350 models
Low-pressure shell scroll
compressor
wirewound resistance
20°C [68°F] : 0.32Ω
(E)P400 - (E)P450, P500
models
Low-pressure shell scroll
compressor
wirewound resistance
20°C [68°F] : 0.3Ω
EP500 models
Low-pressure shell scroll
compressor
wirewound resistance
20°C [68°F] : 0.43Ω
High
pres-
sure
sensor
63HS1 1) Detects high pressure
2) Regulates frequency and pro-
vides high-pressure protec-
tion
Low
pres-
sure
sensor
63LS 1) Detects low pressure
2) Provides low-pressure pro-
tection
Pres-
sure
switch
63H1 1) Detects high pressure
2) Provides high-pressure pro-
tection
4.15MPa[601psi] OFF set-
ting
Thermis-
tor
TH4
(Discharge)
1) Detects discharge air temper-
ature
2) Provides high-pressure pro-
tection
Degrees Celsius Resistance check
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
Pressure
0~4.15 MPa [601psi]
Vout 0.5~3.5V
0.071V/0.098 MPa [14psi]
Pressure [MPa]
=1.38 x Vout [V]-0.69
Pressure [psi]
=(1.38 x Vout [V] - 0.69) x 145
GND (Black)
Vout (White)
Vcc (DC5V) (Red)
Con-
nector
63HS1
1
1 2 3
2
3
Pressure
0~1.7 MPa [247psi]
Vout 0.5~3.5V
0.173V/0.098 MPa [14psi]
Pressure [MPa]
=0.566 x Vout [V] - 0.283
Pressure [psi]
=(0.566 x Vout [V] - 0.283) x 145
GND (Black)
Vout (White)
Vcc (DC5V) (Red)
Con-
nector
63LS
1
1 2 3
2
3
R = 7.465k
120
R = 4057
R =
7.465
25/120
t
4057 273 t
1
393
1
exp