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Control wiring
AWG #18 (0.75 mm
2
)
AWG #18 (0.75 mm
2
)
AWG #18 (0.75 mm
2
)
Use shielded wiring*
Use shielded wiring
Use shielded wiring
Max. 3,280 ft.
Max. 1,640 ft.
Max. 650 ft. (Total)
(A) Inter-unit (between outdoor and
indoor units) control wiring
(B) Remote control wiring
(C) Control wiring for group control
4-1. General Precautions on Wiring
(1) Before wiring, confirm the rated voltage of the
unit as shown on its nameplate, then carry out the
wiring closely following the wiring diagram.
(2) Provide a power outlet to be used exclusively for
each unit, and a power supply disconnect and
circuit breaker for overcurrent protection should be
provided in the exclusive line.
(3) To prevent possible hazards from insulation failure,
the unit must be grounded.
(4) Each wiring connection must be done in accordance
with the wiring system diagram. Wrong wiring may
cause the unit to misoperate or become damaged.
(5) Do not allow wiring to touch the refrigerant tubing,
compressor, or any moving parts of the fan.
(6) Unauthorized changes in the internal wiring can be
very dangerous. The manufacturer will accept no
responsibility for any damage or misoperation that
occurs as a result of such unauthorized changes.
(7) Regulations on wire diameters differ from locality
to locality. For field wiring rules, please refer to your
LOCAL ELECTRICAL CODES before beginning.
You must ensure that installation complies with all
relevant rules and regulations.
(8) To prevent malfunction of the air conditioner
caused by electrical noise, care must be taken when
wiring as follows:
The remote control wiring and the inter-unit control
wiring should be wired apart from the inter-unit
power wiring.
Use shielded wires for inter-unit control wiring
between units and ground the shield on both sides.
(9) If the power supply cord of this appliance is
damaged, it must be replaced by a repair shop
appointed by the manufacturer, because special
purpose tools are required.
4-2. Recommended Wire Length and Wire Diameter for Power Supply System
Outdoor unit
JCHX03652N
JCHXR03652N
30 A
JCHX05252N
JCHXR05252N
50 A
Indoor unit
JK
JA, JX, JXM, JT, JU, JF, JFM
15 A
15 A
15 A
JD
Time delay fuse or
circuit capacity
Time delay fuse or
circuit capacity
Type
Type
NOTE
* With ring-type wire terminal.
FORM 121.00-EG1
ISSUE DATE: 5/31/2012
JOHNSON CONTROLS
158
5. Electrical Wiring
Summary of Contents for JA Series
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