8.
HOW TO INSTALL THE SYSTEM CONTROLLER
(OPTIONAL PART)
Fig. 8-1
System
controller
Switch box
(with cover)
M4 × 1-3/16 in.
Screws (2)
Flat-top
Screw
Back case
Gap
Coin
Gap
Fig. 8-2
Do not supply power to the
unit or try to operate it until
the tubing and wiring to the
outdoor unit are completed.
8-1. System Controller Installation
Do not twist the control
wiring with the power
wiring or run it in the
same metal conduit,
because this may cause
malfunction.
Install the system con-
troller away from sources
of electrical noise.
Install a noise filter or
take other appropriate
action if electrical noise
affects the power supply
circuit of the unit.
(1) Remove the flat-top screw on the bottom of the
back case. When you open
up the decorative
cover, you will see two gaps under the system
controller. Insert a coin into these gaps and
remove the back case. (Figs. 8-1, 8-2)
(2) Connect the wires to terminal base of the system
controller (see next page).
(3) Attach the back case with the 2 M4 screws
provided.
(4) To finish, fit the back tabs of the back case into
the system controller and mount it using the flat-
top screw.
CAUTION
07-115 SSHP_II 5/7/07 4:00 PM Page 85
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