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PUHZ-W112VAA.UK
PUHZ-W112VAA-BS.UK
Water OUT
Water OUT
Plate HEX
TH34
TH6
Water IN
Water IN
Symbol
COMP
Compressor
H/P SW
High pressure switch (63H)
L/P SW
Low pressure switch (63L)
REV/V
Reversing (4-way) valve (21S4)
CHECK/V
Charge plug
P-SENSOR
Pressure sensor (63HS)
LEV-A
Linear expansion valve -A
LEV-B
Linear expansion valve -B
TH3
Liquid temperature thermistor
TH4
Discharge temperature thermistor
TH6
Plate HEX liquid temperature thermistor
TH7
Ambient temperature thermistor
TH8
Heat sink temperature thermistor
TH33
Comp. surface temperature thermistor For protection
TH34
Inlet water temperature thermistor
Rec
Receiver
P/B
Power circuit board
Plate HEX
Plate Heat Exchanger
TH1, THW1
Outlet water temperature thermistor
OCH681A
PUHZ-W112YAA.UK
PUHZ-W112YAA-BS.UK
CHECK/V(C)
Strainer5
(#100)
CHECK/V(L)
Rec
Strainer3
(#100)
Strainer2
(#100)
LEV -B
Strainer4
(#100)
Parts name
DC inverter scroll compressor (Mitsubishi Electric Corporation)
For protection (OFF: 4.15MPa)
For protection (OFF: -0.03MPa)
Change the refrigerant circuit (Heating / Cooling) and for Defrosting
High pressure/Low pressure/For production test use
For calculation of the condensing temperature from high pressure
Heating: Secondary LEV
Heating: Primary LEV
Heating: Evaporating temperature
Cooling: Sub cool liquid temperature
For LEV control and for compressor protection
Heating: Sub cool liquid temperature
Cooling: Evaporating temperature
For fan control and for compressor frequency control
For power board protection
For freeze protection and for compressor frequency control
For accumulation of refrigerant
For flow temp. controller
MWA1-44DM
For flow temp. controller
P -SENSOR
REV/V
L/P SW
CHECK/V(H)
H/P SW
TH4
TH33
COMP
LEV -A
Strainer1
(#100)
Cooling: Primary LEV
Cooling: Secondary LEV
13
Heat exchanger
TH7
TH3
Distributer
TH8
P/B
Refrigerant flow in cooling
Refrigerant flow in heating
Detail
<Reference>
System example
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