Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook page 143

[ VI Refrigerant Circuit ]
(2) GA type
Symbols
Part name
(functions)
Pressure 63HS1
sensor (High pres-
sure side)
63HS3
(Intermedi-
ate pres-
sure)
Thermistor TH11
(Liquid inlet
tempera-
ture)
TH12
(Bypass
outlet tem-
perature)
TH15
(Bypass in-
let tempera-
ture)
TH16
(Liquid re-
frigerant
tempera-
ture)
Solenoid SVM1
valve
SVM2
SV ■ A
SV ■ B
SV ■ C
LEV LEV1
LEV2
LEV3
Part
Usage
code
1. Detects high pressure
2. LEV control
1. Detects intermediate pres-
sure
2. LEV control
LEV control
(Liquid level control)
LEV control (Superheat)
LEV control (Superheat)
LEV control (Subcool)
Opens during cooling and de-
frost modes
Pressure differential control
Provides refrigerant to indoor
unit in cooling operation
Provides refrigerant to indoor
unit in heating operation
Provides refrigerant to indoor
unit in cooling operation
1. Liquid level control
2. Pressure differential con-
trol
Subcool control
- 134 -
Specifications
Pressure
63HS
0~4.15 MPa [601psi]
Vout 0.5~3.5V
1 2 3
0.071V/0.098 MPa [14psi]
Pressure [MPa]
Con-
=1.38 x Vout [V]-0.69
nector
Pressure [psi]
=(1.38 x Vout [V] - 0.69) x 145
GND (Black)
1
2
Vout (White)
3
Vcc (DC5V) (Red)
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
AC208/230V
Open while being powered/
closed while not being pow-
ered
DC12V
Opening of a valve driven by a
stepping motor
0-2000 pulses
Check method
Continuity
check with a
tester
Same as
indoor LEV