Wiring - LG ARNH963K2A2 Installation Manual

Figure 5 shows the wiring diagram for the Hydro Kit Medium Temperature.
Water Pump
24V Transformer
Pilot Relay
* *
*
A
B
*For 24V thermostat disconnect housting A and C then connect housing B and C
Figure 5: Wiring for Hydro Kit (K2 Chassis)
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.
208-230V/60/1
(USE COPPER WIRE ONLY)
208/230V

WIrING

Hydro Kit - K2
Sockets and Connections+
CN-2WAY (A) To terminal strip B, screws 14, 15, 16
CN-2WAY (B)
Not used
CN-3WAY (A)
To terminal strip A, screws 8, 9, 10
CN-3WAY (B) To terminal strip A, screws 1, 2, 3
CN-CC
Optional LG Dry Contact connection
Multi V communication to outdoor or water
CN-COM
source unit
CN-EEV R410A EEV value
CN-FLOW1
Factory mounted ow switch
CN-FLOW2 Not used
CN-FLOW3-4
Not used
CN-OPTION Option card interface
Heat exchanger - refrigerant pipe in
CN-PIPEIN
temperature
Heat exchanger - refrigerant pipe out
CN-PIPEOUT
temperature
CN-POWER AC power to PCB
CN-REMO Hydro Kit unit controller
CN-ROOM
LG Remote Temperature Sensor (optional)
Heat exchanger-inlet water temperature
CN-TH3(TOP/LEFT)
sensor
CN-TH3(BOTTOM/ Heat exchanger-outlet water temperature
CENTER) sensor
Temperature sensor: Solar heating circuit
CN-TH4(TOP)
temperature sensor (optional)
Temperature sensor: Hot water storage tank
CN-TH4(BOTTOM)
sensor ( eld mounted)
CN-THM01 3rd Party 208-230/60/1 thermostat (option)
CN-THM02 3rd Party 24VAC thermostat (option)
CN-TRANS 24 Volt power to PCB
To terminal strip B, screws 11, 12: Solar
CN-W/PUMP (A)
heating system circulating pump
To terminal strip A, screws 4,5: Solar heating
CN-W/PUMP (B)
system circulating pump
CN-WRITE
Not used
EARTH Earth Ground
Line (+) power connection 208-230/60/1
L
N Neutral (-) power connection 208-230/60/1
Ground
Thermistor
Fuse
Field Connections - LG Sourced Accessories
CN-ROOM LG remote temperature sensor (optional)
CN-REMO Remote mounted Hydro Kit unit controller
LG Dry Contact PCB interface (3rd party
CN-CC
binary signal enabe/disable
LG Solar Kit temperature sensor for
CN-TH4 (TOP)
secondary heated water storage tank
LG provided hot water tank temperature
CN-TH4 (BOTTOM)
sensor
5-wire harness from power module accessory
CN-EEV
CN-EEV/MAIN to CN-EEV on the Hydro Kit
MAIN PCB
Single wire from power module accessory
CN-WRITE
CN-EEV/MAIN to Hydro Kit MAIN PCB
CN-WRITE
Wire harness from power module accessory
CN-EEV/LOAD
to Hydro Kit EEV valve
Field Supplied Connections
TERMINAL STRIP SCREW TERMINALS
A
1, 2, 3
A
4,5
A
6,7
A
8, 9, 10
B 11, 12
B 13
B 14, 15, 16
B 17, 18, 19, 20
NOTE: If a 24 volt thermostat will be used, adjust wiring
harness con guration
PCB interface 208-230/60/1 or
Wire Harness A
mechanical conventional thermostat
PCB interface for 24VAC conventional
Wire Harness B
thermostat
Wire harness Plug C to conventional
Wire Harness C
thermostat terminals 18, 19, 20
Wire Color Legend
Black
BK
BL Blue
BR Brown
GR Green
RD Red
YL Yellow
WH White
17