TAKE NOTE OF SPECIFICATIONS
• Using wire strippers, strip the rubber jacket
from both ends of signal cable to reveal
about 40mm/1.57" of the wires inside.
• Strip the insulation from the ends of the wires.
• Using wire crimper, crimp u-type lugs on
the ends of the wires.
PAY ATTENTION TO LIVE WIRE
While crimping wires, make sure you clearly
distinguish the Live (“L”) Wire from other wires.
• Open front panel of the indoor unit.
• Using a screwdriver, open the wire box cover
on the right side of the unit. This will reveal
the terminal block.
ALL WIRING MUST BE PERFORMED
STRICTLY IN ACCORDANCE WITH
THE WIRING DIAGRAM LOCATED ON
THE INSIDE OF THE INDOOR UNIT’S
WIRE COVER.
• Unscrew the cable clamp below the terminal
block and place it to the side.
• Facing the back of the unit, remove the plastic
panel on the bottom left-hand side.
• Feed the signal wire through this slot, from
the back of the unit to the front.
• Facing the front of the unit, match the wire
colors with the labels on the terminal block,
connect the u-lug and firmly screw each
wire to its corresponding terminal.
DO NOT MIX UP LIVE AND NULL WIRES
This is dangerous, and can cause the air conditioning
unit to malfunction.
• After checking to make sure every connection
is secure, use the cable clamp to fasten the
signal cable to the unit. Screw the cable clamp
down tightly.
• Replace the wire cover on the front of the
unit, and the plastic panel on the back.
STEP 7: WRAP PIPING AND CABLES
Before passing the piping, drain hose, and the
signal cable through the wall hole, you must
bundle them together to save space, protect
them, and insulate them.
• Bundle the drain hose, refrigerant pipes, and
signal cable according to
FIG. 3.10
.
DRAIN HOSE MUST BE ON BOTTOM
Make sure that the drain hose is at the bottom of the
bundle. Putting the drain hose at the top of the bundle
can cause the drain pan to overflow, which can lead to
fire or water damage.
DO NOT INTERTWINE SIGNAL CABLE
WITH OTHER WIRES
While bundling these items together,
DO NOT
intertwine
or cross the signal cable with any other wiring.
• Using adhesive vinyl tape, attach the drain
hose to the underside of the refrigerant pipes.
• Using insulation tape, wrap the signal wire,
refrigerant pipes, and drain hose tightly
together. Double-check that all items are
bundled in accordance with
FIG. 3.10
.
DO NOT WRAP ENDS OF PIPING
When wrapping the bundle, keep the ends of the
piping unwrapped. You need to access them to test
for leaks at the end of the installation process (refer
to
Electrical Checks
and
Leak Checks
section of
this manual).
Indoor Unit
Space
behind unit
Refrigerant
piping
Drain hose
Signal wire
Insulation
tape
WARNING
CAUTION
NOTE: ABOUT WIRING
The wiring connection process may differ
slightly between units.
FIG. 3.10
Terminal block
Wire cover
Screw
Cable clamp
The Wiring Diagram is located
on the inside of the indoor unit’s
wire cover.
FIG. 3.9
bp
