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Outdoor Air Damper Wiring (optional)
Outdoor Unit Electrical Wiring
Remove the large handle access plate on the 18K to 30K size or
the front panel for the 36K to 48K size to access wire terminals.
POWER AND WIRING INSTALLATION
Outdoor Unit Power Wiring
Insert main power wires through the wire holes on conduit mounting bracket.
Secure main electrical power conduit with locking nuts to conduit mounting
bracket. Locate wire terminals L1 and L2. Adjust wire lengths for proper
connections to the outdoor unit terminal block. Connect main electrical
power outdoor unit to terminals L1 and L2. Connect Ground wire to ground terminal/screw. Secure
electrical wires inside wire clamp/strain relief. Verify wires are secure, not loose and no external force on
wires affects the connections at the terminals. Replace and secure electrical box cover to outdoor unit.
NOTE: Crossing communication wires will cause an E6 system
malfunction code and possible damage.
Outdoor Communication Wiring
Connect communication cable from indoor unit to terminals
#1 and #2. Maintain the same wire colors and terminal references
as indoor unit wire connections.
Secure cable inside wire clamp/strain relief. Verify cable is secure, not loose
and no external force on wires affects the connections at the terminals.
Follow the manufacturer’s instructions for installing and wiring the outdoor air
damper. On the indoor unit, locate wire terminals F, C, O for outdoor air damper.
Make necessary connections to F (Common), C (Close) and O (Open) terminals.
Secure electrical wires inside wire clamp/strain relief. Verify wires are secure, not
loose and no external force on wires affects the connections at the terminals.
NOTE: When connecting the power wire, make sure that the phase of the power supply matches
with the exact terminal board. If not, the compressor will rotate reversely and run improperly.
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