Mitsubishi Electric PQRY-P200YEM-A Service Handbook page 67

Name Symbol (function)
Pressure PS1
sensor
PS3
Thermistor TH11
(liquid inlet
temperature)
TH12
(bypass outlet
pressure)
TH15
(bypass outlet
temperature)
TH16
(bypass inlet
temperature)
Solenoid SVA
valve
SVB
SVC
Electronic LEV1
expansion
valve
LEV3
Application
1) Liquid pressure (high-pressure)
detection
2) LEV control
1) Intermediate pressure detection
2) LEV control
LEV control (liquid refrigerant control)
LEV control (superheat control)
LEV control (superheat control)
LEV control (subcool control)
Supplies refrigerant to cooling indoor
unit.
Supplies refrigerant to heating indoor
unit.
Supplies refrigerant to cooling indoor
unit.
Liquid level control
Pressure control
Liquid level control
Pressure control
–66–
Specification
PS1/PS3
Pressure
0~30 kg/cm 2 G
(0~2.94MPa)
Vout 0.5~3.5 V
Con-
nector
Gnd (black)
Vout (white)
Vcc (DC5V) (red)
R =15kΩ
0
B =3460
0/100
Rt =
1 1
15exp{3460( - )}
273+t 273+0
0°C : 15kΩ
10°C : 9.7kΩ
20°C : 6.4kΩ
25°C : 5.3kΩ
30°C : 4.3kΩ
40°C : 3.1kΩ
AC 220~240V
Open when energized
Closed when de-energized
12V DC stepping motor drive
0 to 2000 valve opening pulse
Check method
Continuity check by a
tester
Same as LEV of
indoor unit.