INSTALLATION INSTRUCTION (CZ-CSRC2)
Parts supplied with remote sensor
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1
Remote sensor
(comes with 200 mm wire)
1
2
Machine screws
M4 × 25
2
3
Wood screws
2
4
Spacers
2
5
Wire joints
2
6
Clamp
1
7
Installation manual
1
Remote sensor installation guidelines
Place of installation
• Mount the remote sensor at a height of 1 to 1.5 meters above the fl oor where it can
sense the average temperature of the room.
• Do not mount the remote sensor in a place exposed to direct sunlight or a place
exposed to outside air such as near a window.
• Do not mount the remote sensor behind an object so that it is separated from the air
circulation of the room.
• Mount the remote sensor within the room being air conditioned.
• The remote sensor must be mounted on the wall or other surface vertically.
How to install the remote sensor
< NOTE 1 >
Do not twist the remote sensor wiring with the power wiring or run it in
the same metal conduit, because this may cause malfunction.
< NOTE 2 >
Install the remote sensor away from sources of electrical noise.
< NOTE 3 >
Install a noise fi lter or take other appropriate action if electrical noise
affects the power supply circuit of the unit.
• Use an electric junction box (fi eld supply) (See Fig. 1) for fl ush mounting of the
remote sensor.
When mounting the back case to the electric junction box, tighten the screws securely
until the screw heads touch the back case. Otherwise, a loose screw head may
damage the PCB on the back of the top cover when mounting the top cover. But do not
over-tighten the screws. Overtightening may deform the back case and cause the unit
to fall.
(Fig. 1)
1. Insert a screwdriver or the like in the groove on the lower side of the remote sensor
body to pry off the back case. (See Fig. 2)
(Fig. 2)
2. Use the 2 supplied M4 machine screws to secure the remote sensor back case.
Prior to mounting, clear the cutouts in the back case corresponding to the holes in
the electric junction box using a screwdriver or the like. Use the spacers and take
care not to tighten the screws excessively. If the back case will not seat well, cut the
spacers to a suitable thickness.
3. Connect fi eld supplied 2 core lead wires to the lead wires from the remote sensor.
(See “How to wire the remote sensor.”)
When connecting the fi eld supplied 2 core lead wires to the terminal block,
check the terminal numbers in the indoor unit to make sure that the wires are
correctly connected. (See Fig. 3)
(The remote sensor is damaged if 220 / 240 V AC is applied.)
4. Fit the remote sensor to the tabs of the back case and mount it.
Under case (back case)
Remote sensor
Spacer
Wall
Machine screws
M4 × 25 (2)
Electric junction box
for one box (no cover)
How to wire the remote sensor
Connection diagram
WHT
BLK
1
2
1
2
*1: 0.5 mm
2
to 1.25 mm
2
of the wires are used for lead wires.
Remote controller wiring can be extended to a maximum of 500m.
(Fig. 3)
How to connect lead wires
2 supplied
white wire
joints
1. Peel off 14 mm of the cable
sheathing.
2. Twist the 2 wires together
and crimp them together
with the wire joint.
3. When a crimping tool is
not used, solder the wires
together and cover the joint
with insulating tape.
(Fig. 4)
Important Information When Using Together with Remote
Controller Switch
Installation method
1. Set the remote controller switch as the main remote controller.
< NOTE >
Do not set the room temperature sensor on the remote controller switch
as the remote controller sensor.
Basic wiring diagram
< NOTE >
When connecting the wires, be careful not to wire incorrectly. (Incorrect
wiring will damage the unit.)
• Wiring when controlling a single indoor unit with the remote sensor and remote
controller switch:
1 2
2
1
1 2
(Fig. 5)
Terminal block
for wiring
the remote
controller of
the indoor unit
Wiring for remote sensor
(fi eld supply)
Wire joint
Wiring from remote
sensor
Remote
sensor
Lead wire from
indoor unit
Lead wire
from remote
sensor
Wire
joint
2-pin terminal block
for remote controller
wiring
Remote controller
switch (main)
Remote controller wiring
(fi eld supply)
Remote sensor
Indoor
unit
(Option)
EN
85464369342010-1
Printed in Japan
00̲Remote̲sensor.indb 1
