Piping Installation - LG PAHCMW000 Installation Manual

PIPING INSTALLATION

14
PIPING INSTALLATION
Installation of bypass, non-return and EEV Valve
When used with Multi V Outdoor unit a bypass valve and non-return valve must be installed in the
refrigerant cycle following the diagram and table below. The solenoid valve must be connected to
the bypass valve output on the communication module.
1
Refrigerant Inlet
2
Refrigerant Outlet
3
EEV
4
Solenoid Valve (NC) - Field supplement
5
Non-Return Valve - Field Supplement
Refrigerant Side
Capacity (kW)
EEV Type
Min Max
PAEEVC000
3.6 28
PRLK048A0
> 28 56 PRLK096A0
NOTE
• The solenoid valve must be a normally closed type (NC)
• The non-return valve must be a type without preloaded spring
• The valves must be selected as close as possible and preferably not smaller than the Kv
value from the table above.
• Connection of PRLK594A0 is not possible
2
5
3
M
4
1
System
Compatibility
HP/HR
HP
Water Side
Heat
Exchanger
Kv Value of Solenoid and
Non-Return Valve
0.95
1.90
Pipe size for
bypass
3/8" / 9.52mm
1/2" / 12.7mm