Sanyo CHDZ09053 - Manual (Page 102)

3-48
Control of W-3WAY ECO-i SYSTEM
1
2
3
4
5
6
7
8
4. System Controller
■ How to install the system controller
Fig. 3-29
2041_C_I
System
controller
Switch box
(no cover)
M4 × 30 or 5/32” × 1-3/16”
Screws (2)
Flat-top
Screw
Back case
Gap
Coin
2042_M_I
Gap
Fig. 3-30
Do not supply power to the
unit or try to operate it until
the tubing and wiring to the
outdoor unit is completed.
4-1. 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.
● If local codes allow, this system controller can be
mounted using a conventional wall box for flush
mounting.
(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. 3-29, 3-30)
(2) Connect the wires to terminal base of the system
controller (see next page).
(3) Attach the back case with the 2 × M4 or 5/32” 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