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25
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Technical data
Installer and user reference guide
139
RWEYQ8~14T9Y1B
VRV IV water-cooled system air conditioner
4P452191-1B – 2020.10
25.2 Piping diagram: Outdoor unit
A
C
D
B
B
B
SV
SV
SV
M
SV
SV
HPS
SV
SV
SENPH
SENPL
4D108945A
A
Charge port
B
Stop valve (with service port
∅
7.9 mm flare connection)
C
Cooling water inlet
D
Cooling water outlet
Charge port / Service port
Filter
Check valve
Pressure relief valve
Solenoid valve
Capillary tube
Electronic expansion valve
4‑way valve
Propeller fan
Port (for sensor)
Low/high pressure sensor