Functions Of The Major Components Of Outdoor Unit - Mitsubishi Electric PURY-P200YLM-A(1) Service Handbook

[3-3 Functions of the Major Components of Outdoor Unit ]

3-3

Functions of the Major Components of Outdoor Unit

Part Symbols
name (functions)
Com- MC1
pressor (Comp1)
High 63HS1
pres-
sure
sensor
Low 63LS
pres-
sure
sensor
Pres- 63H1
sure
switch
Thermis- TH4
tor (Discharge)
HWE1314A
Notes Usage
Adjusts the amount of circulating
refrigerant by adjusting the operat-
ing frequency based on the oper-
ating pressure data
1) Detects high pressure
2) Regulates frequency and pro-
vides high-pressure protec-
tion
1) Detects low pressure
2) Provides low-pressure pro-
tection
1) Detects high pressure
2) Provides high-pressure pro-
tection
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
Specifications
(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
63HS1
1 2 3
Con-
nector
63LS
1 2 3
Con-
nector
4.15MPa[601psi] OFF set-
ting
Degrees Celsius
R = 7.465k
120
R = 4057
25/120
R =
t
7.465 exp
- 78 -
Check method
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
1 GND (Black)
2
Vout (White)
3
Vcc (DC5V) (Red)
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)
1
2
Vout (White)
3
Vcc (DC5V) (Red)
Resistance check
1 1
4057
393
GB