950-0265revC - 11 - November 30, 2020
Installation (CONT’D).
Step 11
Main Power Wiring
DANGER
ELECTRICAL WIRING SHOULD BE DONE BY A LICENSED ELECTRICIAN IN ACCORDANCE WITH
NATIONAL AND LOCAL CODES.
Tip: Small electrical screwdriver is required for unit terminals. Breaker size and wiring must be sized for
the rating plate amperage. If a smaller than required breaker is used there is a possibility of unit damage. Use
breaker as specified in Specifications Table page 19 to page 20.
Each system installed must have a separate branch circuit with an individual breaker/fuse. A local disconnect
should be installed adjacent to the outdoor unit in accordance with National and Local Electrical Codes. The
outdoor unit provides power for the indoor unit therefore, no disconnect is required between the outdoor and
indoor units.
Line voltage from the disconnect should be wired to:
N - L
– Ground screw (115V Unit)
L1 - L2
– Ground screw (208/230V Unit).
Remove right side knockout on the terminal access panel for whip/wiring connection. Ground connection must
be made to the terminal plate.
Tip: For easier access to the terminals in the outdoor unit remove the lower access panel to install whip
and Seal Tite connectors for conduit.
Step 12
Controls Wiring
USE A MINIMUM 16 AWG WIRE.
Remove terminal covers from Indoor unit and wire to the terminals.
A small electrical screwdriver required.
Installation (CONT’D).
Control wiring from the outdoor unit must be a point to point; i.e. the terminal that the wire is attached to on the
outdoor unit must be the same terminal it is wired to in on the Indoor unit.
***
DO NOT CROSS WIRES BETWEEN TERMINALS. ***
THIS IS EXTREMELY IMPORTANT!
Miswiring (cross connecting wires) between the indoor unit and outdoor unit will cause the unit to fail to operate
at a minimum, and can seriously damage the unit in the worst case. Use extreme care to ensure that wiring
between the inside unit and the outside unit is per the wiring diagrams on the next pages.
Ground wires connected to the terminal plate indoor and outdoor units must be grounded.
Terminal Block
Wire cover
Screw
Cable clamp
Outdoor Unit Wiring Diagram is
located on the inside of the wire
cover on the right side.
Valve Cover
