Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 94

[3-7 Functions of the Major Components of HBC ]
Part name Symbols
Pressure PS1
sensor (high pres-
sure side)
PS3(medi-
um pres-
sure side)
Pw1
(Pump1
inlet pres-
sure)
Pw2
(Pump1
outlet pres-
sure)
Pw3
(Pump2
inlet pres-
sure)
Pw4
(Pump2
outlet pres-
sure)
Valve VB3a~f
block
Pump PUMP1,2
Water CPV1
pressure
protection
valve
3-way MV1
valve
*1. The names of port "a" through "f" are corresponding to port 1 through 6.
*2. For the degree of valve opening, "85" or "1600" indicates fully open and "800" indicates fully closed.
*3. Valve opening: 800 = connection to both pump 1 and pump 2; 1600 = connection to pump 1; 85 = connection to pump 2
BS_03_L
Notes
Refriger- 1) Detects high pressure
ant side 2) LEV control
1) Detects medium pressure
2) LEV control
Water 1) Detects pump1 water inlet
side pressure
2) Water flow control
Water 1) Detects pump1 water outlet
side pressure
2) Water flow control
Water 1) Detects pump2 water inlet
side pressure
2) Water flow control
Water 1) Detects pump2 water outlet
side pressure
2) Water flow control
*1
Water 1) Switches the water flow path
side depending on the operation
mode
2) Temperature difference con-
trol
(Water flow to each indoor unit is
controlled.)
Water Temperature difference control
side (Water flow to each indoor unit is
controlled.)
Water Trips when the internal pressure
side in the water circuit rises
Water Supplies water to the Pump 1
side side or the Pump 2 side
Usage
PS1
1 2 3
Con-
nector
PW
1 2 3
Con-
nector
DC12V
Opening of a valve driven by
a stepping motor
Rated voltage DC268V
Specified voltage DC0-6V
Operating pressure: 560
kPa
DC12V
Opening of a valve driven by
a stepping motor
Specifications Check method
Pressure
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
GND (Black)
1
2
Vout (White)
3
Vcc (DC5V) (Red)
Pressure
0~1.0 MPa [145psi]
Vout 0.5~4.5V
0.392V/0.098 MPa [14psi]
Pressure [MPa]
=0.25 x Vout [V]-0.125
Pressure [psi]
=(0.25 x Vout [V] - 0.125) x 145
1 GND (Black)
2
Vout (White)
3
Vcc (DC5V) (Red)
*2
*3
25
chapter 3 -