York YKKE Series, Installation Manual

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b. Using wire strippers, strip the rubber jacket from
both ends of signal cable to reveal about 15cm
(5.9”) of the wires inside.
c. Strip the insulation from the ends of the wires.
d. Using a wire crimper, crimp u-lugs on the ends of
the wires.
NOTE: While connecting the wires, please strictly follow
the wiring diagram (found inside the electrical box cover).
2. Remove the electric cover of the outdoor unit.
If there is no cover on the outdoor unit, disassemble
the bolts from the maintenance board and remove the
protection board. (See Fig. 8.1)
Cover
Screw
Fig. 8.2
3. Connect the u-lugs to the terminals
Match the wire colors/labels with the labels on the
terminal block, and firmly screw the u-lug of each wire
to its corresponding terminal.
4. Clamp down the cable with designated 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.
Indoor Unit Wiring
1. Prepare the cable for connection
a. Using wire strippers, strip the rubber jacket from
both ends of signal cable to reveal about 15cm
(5.9”) of the wires inside.
b. Strip the insulation from the ends of the wires.
c. Using wire crimper, crimp the u-lugs to the ends
of the wires.
2. Open the front panel of the indoor unit. Using a
screwdriver, remove the cover of the electric control
box on your indoor unit.
3. Thread the power cable and the signal cable through
the wire outlet.
4. Connect the u-lugs to the terminals.
Match the wire colors/labels with the labels on the
terminal block, and firmly screw the u-lug of each
wire to its corresponding terminal. Refer to the Serial
Number and Wiring Diagram located on the cover of
the electric control box.
CAUTION
s While connecting the wires, please strictly follow
the wiring diagram.
s The refrigerant circuit can become very hot. Keep
the interconnection cable away from the copper
tube.
5. Clamp down cable with the designated cable clamp to
secure it in place. The cable should not be loose, and
should not pull on the u-lugs.
6. Reinstall the electric box cover and the front panel of
the indoor unit.
Wiring
1 Control box lid
2 Wiring diagram label
3 Power supply terminal block
4 Clamp for wiring
5 Wiring between units
6 Plastic cover
7 Clamp (field supply)