– 9 –
7. ELECTRICAL WIRING
(1) Remove the two tapping screws and pull the control
box downward (Fig. 35).
(2) Remove the cover A and install the connection cord
(Fig.36).
(3) After wiring is complete, clamp the connection cord
with the cord clamp (Fig.37).
(4) Reattach cover A. Then fasten the control box back
into its original position using the two tapping
screws.
(5) Attach the connection cord and cable clips. Make
sure that they are positioned so that they will not
interfere with opening and closing of the intake
grille or with removal and installation of the air fil-
ters (Fig. 37).
Fig. 35
Indoor unit
Tapping screw
Control box
B. If round terminal cannot be used, the fol-
lowing items should be followed.
For solid core wiring (or F-cable)
(1) Cut the wire end with a wire cutter or wire-
cutting pliers, then strip the insulation to about
1/2” (12.7 mm) to expose the solid wire.
(2) Using a screwdriver, remove the terminal
screw(s) on the terminal board.
(3) Wires with the same diameter should be con-
nected on both sides as shown in Fig. 33. Since
connecting wires with different diameters causes
the wires to heat up due to loose connections,
this method should not be used.
HOW TO FIX THE CONNECTION CORD
After passing the connection cord through the
insulation tube, fasten it with the cord clamp.
Use VW-1, 0.5 to 1.0 mm thick, PVC tube as the
insulation tube.
Fig. 34
Insulation tube
Insulation tube
Cord clamp
Fig. 36
Cover A
Control box
(1) Before starting work, check that
power is not being supplied to the
indoor unit.
(2) Match the terminal board numbers
and connection cord colors with
those of the indoor unit.
Erroneous wiring may cause burning
of the electric parts.
(3) Connect the connection cord firmly
to the terminal board. Imperfect
installation may cause a fire.
(4) Always fasten the outside covering
of the connection cord with the cord
clamp. (If the insulation is chafed,
electric leakage may occur.)
(5) Always connect the ground wire.
Fig. 32
Strip 3/8”
(10 mm)
Screw with
special washer
Round
terminal
Terminal
board
Round
terminal
Screw with
special washer
Round terminal
Wire
Wire
Terminal block
Strand wire
Fig. 33
Strip 1/2”
(12.7 mm)
Screw with
special washer
Round
terminal
Terminal
board
Round
terminal
Screw with
special washer
Insulation
Wire
Wire
Terminal block
Solid wire
