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Mitsubishi Electric PURY-WP200 Service Manual page 95

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[ VI Refrigerant Circuit ]
3. HBC controller
Part name
Symbols
Solenoid
SVM1
valve
4-way
21S4Ma,b
valve
LEV
LEV1
LEV2
LEV3
Thermistor TH11,12,
T13,14
TH15,16
TH31a~h
TH32,33
TH34,35
TH36,37
Pressure
PS1
sensor
3-way
MV1a~h
valve
MV2a~h
Water flow
FCV3a~h
rate con-
trol valve
Pump
PUMP1,2
Water
CPV1~7
pressure
protection
valve
*1. The names of port "a" through "h" are corresponding to port 1 through 8.
*2. Valve opening is controlled with 0, 800,1600 pulses. In the Maintenance Tool, "0" indicates 0 pulse, "1" indicates 1600
pulses, and "2" indicates 800 pulses.
*3. For the degree of valve opening, "0" indicates fully open and "1600" indicates fully closed.
HWE1113B
Notes
Refriger-
Opens during the cooling mode
ant side
and defrost cycle
Refriger-
Switches between heating and
ant side
cooling
Refriger-
Supplies refrigerant to HEX1a
ant side
and HEX1b
Refriger-
Supplies refrigerant to HEX2a
ant side
and HEX2b
Refriger-
Subcool control
ant side
Refriger-
1) Compressor frequency con-
ant side
trol
2) LEV opening adjustment
Bypass superheat amount ad-
justment
Water
Indoor unit circulating water con-
side
trol
Indoor unit circulating water con-
trol
Water pump error detection
Water pump suction water tem-
perature detection
Refriger-
1) Detects high pressure
ant side
2) LEV controll
Water
Switches the water flow path de-
*1
side
pending on the operation mode
*1
Water
Temperature difference control
side
Controls the water flow to each
indoor unit
Water
Temperature difference control
side
Controls the water flow to each
indoor unit
Water
Trips when the internal pressure
side
in the water circuit rises
Usage
AC220-240V
Open when energized/
closed when de-energized
AC220-240V
Open when energized/
closed when de-energized
DC12V
Opening of a valve driven by
a stepping motor
0~3000 pulses
R
= 15k
0
R
= 3460
0/80
R = 15
t
40°C[104°F] :3.1kohm
1 2 3
Con-
nector
DC12V
Opening of a valve driven by
a stepping motor
DC12V
Opening of a valve driven by
a stepping motor
Rated voltage DC268V
Specified voltage DC0-6V
Operating pressure: 490
kPa
- 86 -
Specifications
Check method
Continuity check
with a tester
Continuity check
with a tester
Refer to the sec-
tion "Continuity
Test with aTest-
er".
Continuity be-
tween white, red,
and orange.
Continuity be-
tween yellow,
brown, and blue.
White
Red
Orange
1
1
exp
3460
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
Pressure
PS1
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)
*2
*3
M
Yellow
Brown Blue
GB
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