Concealed Ducted Air Handler Installation Manual

Indoor Unit Wiring
1. Prepare the cable for connection.
a. Using wire strippers, strip the rubber jacket
from both ends of the signal cable to reveal
about 5.9” of the wire.
b. Strip the insulation from the ends of the
wires.
c. Using a wire crimper, crimp the u-lugs to
the ends of the wires.
2. Remove the cover of the electric control box
on your indoor unit.
3. Connect the u-lugs to the terminals.
Match the wire colors/labels with the labels
on the terminal block. Firmly screw the u-lug
of each wire to its corresponding terminal.
Refer to the Wiring Diagram located on the
cover of the electric control box.
4. Clamp down the cable with the cable clamp.
5. Insulate unused wires with electrical tape.
Keep them away from any electrical or metal
parts.
6. Reinstall the cover of the electric control box.
Connective wiring diagramWiring diagram
Control box
1
Refrigerant Piping
Conection
Wiring
 Page 27 
Revised 5/14/2020