17
REFRIGERANT SYSTEM DIAGRAM
8
Distributor
TH7
Strainer(#100)
Strainer(#100)
Receiver
LEV-B
TH6
TH32
Plate HEX
Water IN
Water OUT
Strainer
(#100)
TH3
CHECK/V
CHECK/V
CHECK/V
H/P SW
TH4
TH8
P/B
LEV-A
COMP
REV/V
P-Sensor
S/V
Strainer
(#100)
TH33
Refrigerant flow in heating
Refrigerant flow in cooling
Symbol
Part name
Detail
COMP
Compressor
DC inverter twin rotary compressor (Mitsubishi Electric Corporation)
H/P SW
High pressure switch (63H)
For protection (OFF: 4.15MPa)
Plate HEX Plate Heat Exchanger
ACH30-50 Plates (Alfa Laval) (for PUHZ-W85VHA2(-BS).UK)
MWA1-44LM (MITSUBISHI) (for PUHZ-W85VHA2R1/R3/R4/R5(-BS).UK)
REV/V
Reversing (4-way) valve (21S4)
Change the refrigerant circuit (Heating/Cooling) and for Defrosting
S/V
Solenoid valve
For production test use
CHECK/V Check valve
High pressure/Low pressure/For production test use
P-Sensor
Pressure sensor (63HS)
For calculation of the condensing temperature from high pressure
P/B
Power board
Inverter power board
LEV-A
Linear expansion valve -A
Heating: Secondary LEV Cooling: Primary LEV
LEV-B
Linear expansion valve -B
Heating: Primary LEV Cooling: Secondary LEV
TH32
Inlet water temperature thermistor
For freeze protection and for compressor frequency control
TH3
Liquid temperature thermistor
Heating: Evaporating temperature Cooling: Sub cool liquid temperature
TH4
Discharge temperature thermistor
For LEV control and for compressor protection
TH6
Plate HEX liquid temperature thermistor Heating: Sub cool liquid temperature Cooling: Evaporating temperature
TH7
Ambient temperature thermistor
For fan control and for compressor frequency control
TH8
Heat sink temperature thermistor
For power board protection
TH33
Comp.surface temperature thermistor For compressor protection
Receiver
Receiver
For accumulation of refrigerant
PUHZ-W85VHA2.UK
PUHZ-W85VHA2R1.UK
PUHZ-W85VHA2R3.UK
PUHZ-W85VHA2-BS.UK
PUHZ-W85VHA2R1-BS.UK PUHZ-W85VHA2R3-BS.UK
PUHZ-W85VHA2R4.UK PUHZ-W85VHA2R5.UK
PUHZ-W85VHA2R4-BS.UK PUHZ-W85VHA2R5-BS.UK
OCH465D
