LG Multi V Water IV Installation Manual page 82

WATER CIRCUIT INSTALLATION
Water Water
In Out
Piping System Specifications
Flow Switch
Solenoid Valves (Optional)
Solenoid valves may be installed to shut off water flow to the water source unit when the unit turns off.
Solenoid valves are field supplied, must be rated for 208-230V, and must be wired to terminals L1 and L2
on the water source unit PCB as shown in Figure 66. Remove water source unit power, set the PCB DIP
switches as shown in Figure 67, then reapply power.
Solenoid
WARNING
Valve
High voltages capable of causing death are used in this equipment. Remove water source unit input power
before performing this procedure. Failure to observe this warning can result in death or severe injury.
Note:
Field-supplied solenoid valve must be a normally closed type.
Figure 66: Flow Switch and Solenoid Valve Wiring
Water Water
In Out
Flow Switch
Solenoid
Valve
Figure 67: WSU DIP Switch Settings for Solenoid Valve Control by WSU
ON
OFF
1 2 3
82
C_Box
C_Box
4 5 6 7
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
CN_26
MAIN PCB
CN_24
CN_22
1(L) 2(N) 3(L) 4(N) 5(A) 5(B)
DDC
CN_26
MAIN PCB
CN_24
CN_22
1(L) 2(N) 3(L) 4(N) 5(A) 5(B)
ON
OFF
1 2 3
INTERNET
BMS
4 5 6 7