12
(4) Wiring
q
Process the end of the connection cords to the
dimensions shown in Fig. 37.
w
Connect the end of the connection cord fully into the
terminal block.
Fig. 37
Connection cord
Fig. 39
Inter-unit line
Power supply
Panel (top)
Plug
Conduit plate
Lock nut
e
Fasten the end of the connection cord with the
screw.
(5) Floor console / Under ceiling select switch
q
The electrical circuits for this were set for use as a
ceiling type at the factory.
w
The following changes must be made to the set-
tings if the unit is to be used as a floor type.
e
Changing the settings for the electrical circuits.
Switch 1 (SW1) on the printed circuit board inside
the electric component box must be set as follows.
Fig. 38
Microcomputer
SW1
SW1
SW1
Under ceiling type
Floor console type
2. OUTDOOR UNIT SIDE
A. To take off the panel (top), remove the 2 screws.
B. Dismount the plugs on the conduit plate.
C. Temporarily mount the conduit tubes on the con-
duit plate.
D. Properly connect both the power supply and inter-
unit lines to the corresponding terminals on the ter-
minal board.
Refer to the wiring system diagram in Fig. 41
[Which also appears on the panel (top)].
E. Ground the unit in accordance with local codes.
F. Be sure to size each wire allowing several inches
longer than the required length for wiring.
G. Use lock nuts to secure the conduit tube.
■
EXAMPLE OF INCORRECT WIRING
(Cooling model)
The following are examples of improper
wiring that results in system misopera-
tion. You should confirm that you have
wired the units correctly before begin-
ning the test run.
