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Mitsubishi Electric PURY-P72 Service Handbook page 126

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Table of Contents
[VI Refrigerant Circuit]
[2} Principal Parts and Functions
1. Outdoor unit
Part
Symbols
Notes
Usage
Specifications
Check method
name
(functions)
Com-
MC1
Adjusts the amount of circulating
P72 model
pressor
(Comp1)
refrigerant by adjusting the operat-
Low-pressure shell scroll
ing frequency based on the oper-
compressor
ating pressure data
Wirewound resistance
20°C[68°F] :
0.2680hm (THMU)
0.9810hm (YHMU)
P96. P120 models
Low-pressure shell scroll
compressor
Wirewound resistance
20°C[68°F] :
0.1610hm (THMU)
O.5830hm (YHMU)
High
63HS1
1) Detects high pressure
Pressure
pres-
2) Regulates frequency and pro-
63HSl
0-4.15
MPa
(601psiJ
Vout O.5-3.SV
sure
vides high-pressure protec-
T"2"3'
O.071V1O.098 MPa [14psi)
sensor
tion
Con-
Pressure [MPa}
neelDr
=1.38 x Vout MoO.69
Pressure [psi)
~r'
Voul
M -
0.69), 145
1 GND (Black)
2 Vout (White)
Vee (DCSV) (Red)
Low
63LS
1) Detects low pressure
"'-'"'
pres-
2) Provides low-pressure pro-
63LS
0-1.7 _
[247psl]
sure
tection
T"2"3'
Vout O.5-3.5V
con-)'
0.173V10.098 MPH 114psij
sensor
"'_ _ IMPH]
1I:0.566xYNM·O.283
nectar
"'-'"'\Poll
90.566
x
Vou1 M· 0.283)
x
145
~:ND
(Black)
2 Vout (White)
Vee (DC5V) (Red)
Pres-
63H1
1) Detects high pressure
4.15MPa[601 psi] OFF setting
sure
2) Provides high-pressure pro-
switch
tection
Thermis- TH4
1) Detects discharge air temper-
Degrees Celsius
Resistance
tor
(Discharge)
ature
R,20
=
7.465kO
check
2) Provides high-pressure pro-
R251120 =
4057
tection
R,=
1
1
O°C[32°F] :698kohm
7.465exp!4057( 273+1 -
393)1
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
HWE0803A
- 116 -
GB
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Pury-p168Pury-p192Pury-p240y(t)shmu-aPury-p96Pury-p120y(t)hmu-aPury-p144

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