Mitsubishi Electric PURY-P72 Service Handbook page 129

•
[VI
Refrigerant Circuit]
3.
Be
control/er
(1) G type
Part name
Symbols Part
Usage Specifications Check method
(functions) code
Pressure PS1 1) Detects high pressure
Pressure
sensor (High pres-
2) LEV control
PS1
Q-.4.15
MPa
(601 psi)
sure side)
VouIO.S-3.5V
123
0.071V10.098
MPa
/14psi)
/
Con-
Pressure (MPal
PS3 1) Detects intermediate
nector
=1.38 x Vou! [V}-O.69
(Intermedi-
Pressure (psi]
pressure
~~.38
x Voul
M -
0.69) x 145
ate pres-
2) LEV control 1 GND
(Black)
sure) 2 Voul (While)
3 Vee (DC5V) (Red)
Thermistor TH11 LEV control
(Liquid inlet (Liquid level control)
Ro
= 15k"
lempera-
ROIeo=
3460
ture)
1 1
Rt=
15expl3460
(m+! -
273)}
TH12 LEV control (Superheat)
(Bypass
0°C[32°F] : 15kohm
outlet tem-
1O°C[50°F] :9.7kohm
perature)
20°C[68°F] :6.4kohm
25°C[77°F] :5.3kohm
TH15 LEV control (Superheat)
30°C[86°F] :4.3kohm
(Bypass in- 40°C[1 04 oF] :3.1 kohm
let tempera-
ture)
TH16 LEV control (Subcool)
(liqUid re-
frigerant
tempera-
ture)
Solenoid
SVM1
Opens during cooling and de- AC208-230V Continuity
valve frost modes Open while being poweredl check with a
SV.A
closed while not being pow- tester
Provides refrigerant to indoor
ered
unit in cooling operation
SV.B Provides refrigerant to indoor
unit in heating operation
SV.C
Provides refrigerant to indoor
unit in cooling operation
LEV LEV1 1) Liquid level control DC12V Same as
2) Pressure differential con- Opening of a valve driven by a indoor LEV
LEV3
trol
stepping motor
0-2000 pulses
HWE080JA
- 119 -
GB