3. Connecting The Cable Between Indoor Unit and Outdoor Unit
1) Connection of the cable | |
1. | Remove the cover control from the unit |
| by loosening the 3 screws. |
2. | Dismount caps on the conduit panel. |
Wiring Diagram
Connecting cable(Low voltage) b
3. | Temporarily mount the conduit tubes on |
| the conduit panel. |
4. | Properly connect both the power supply |
| and low voltage lines to the |
| corresponding terminals on the terminal |
| block. |
5. | Ground the unit in accordance with local |
| codes. |
6. | Be sure to size each wire allowing |
| several inches longer than the required |
| length for wiring. |
Indoor Unit | Outdoor Unit | |
Terminal | Terminal | |
(4P) | (6P) | |
1 |
| 1 |
2 |
| 2 |
3 |
| 3 |
4 |
| 4 |
| L1* 5 | |
| L2 | 6 |
G
*L1 is neutral for 115V models.
Power supply a
To 
branch circuit
Ground
7. Use lock nuts to secure the conduit |
tubes. |
NOTE
Connector trade size for this unit is 1/2". Refer to "How to connect wiring to the terminals" for instructions on connecting depending on the wire type you are using.
WARNING
NOTE
1. | shows field wiring. |
2.Separately wire the high and low voltage line.
3.Use
4.Use outdoor and waterproof connection cable rated more than 300V for the connection between indoor and outdoor unit.
(For example, Type SJO-WA)
•Be sure to comply with local codes while running the wire from the indoor unit to the outdoor unit(size of wire and wiring method, etc).
•Every wire must be connected firmly.
•No wire should be allowed to touch refrigerant tubing, the compressor or any moving parts.
Power Supply
Model | Power source | AWG(MIN.) | Fuse or breaker | ||
|
| Capacity | |||
ⓐ | ⓑ | ||||
|
| ||||
18K | 1ø , 208/230V | 14 | 18 | 20A | |
|
|
|
|
| |
Outdoor unit
Terminal block
Over 5mm 
(2") 
Cover control
Conduit panel
Connecting 
cable
Power supply cord
