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NOTE: If you need to use a cable extension longer than 10 m (32 ft), select an electric wire that meets the following specifications:
Wire specification ......... CVV (2-core): 1.25 mm
* CVV is a control cable which is sheathed in polyvinyl chloride with polyvinyl insulated wires inside.
4
How To Install
1.
Chose a place in which to install the remote controller (switch box).
Be sure to observe the following steps:
(1) Temperature sensors are provided with both the remote controller and the indoor units. When using the
remote controller temperature sensor, the master remote controller detects the room temperature. In-
stall the master remote controller in a place where the average room temperature can be detected and
which is not affected by any heat source from direct sunlight or air blown from air conditioning units.
(For how to set the master and subordinate remote controller, see step 6 in section 4 How To Install .
For how to set the temperature sensor, refer to the CITY MULTI indoor unit installation manual.)
(2) When installing on either the switch box or the wall, allow extra space around the remote controller as
shown in the figure at the right.
(When using the remote controller in combination with a Program timer, refer to the Program timer
installation manual.)
NOTE: Make sure that there is no wiring or wire near the remote controller sensor. If there is, the remote controller cannot detect the exact room
temperature.
(3) Parts which must be supplied on site.
• Switch box for two units
• Thin-copper wiring pipe
• Lock nut and bushing
2.
Seal the remote controller cord with putty in order to prevent the possible entry of dew, water droplets, cockroaches, other insects, etc.
When using the switch box
• When installing on the switch box, seal the connections
between the switch box and wiring pipe with putty.
Wall
Bushing
Remote control
cord
3.
Remove the remote controller cover.
• Insert a slotted screwdriver into one of the open slots and move the screwdriver in the arrow direction.
CAUTION
Do not into turn the screwdriver in the slot. Doing so may damage the slot.
2
(16 AWG) or equivalent
Wiring
pipe
Lock nut
Switch box
Seal around here
with putty.
30(1-3/16)
30(1-3/16)
46(1-13/16)
102(4)
Switch box for two units
When installing directly on the wall
• When opening a hole using a drill for the remote controller cord (or
when taking the cord out of the back of the remote controller), seal the
hole with putty.
• When routing the cord via the portion cut off from the upper cover,
similarly seal that portion with putty.
Remote control
cord
Seal around here
with putty.
For taking cord
out from back of
remote
controller
Extra space
External size
around remote
of remote
controller
controller
30 (1-3/16)
30
(1-3/16)
(1-3/16)
Temperature
sensor
120
(4-3/4)
Unit: mm (in)
10 (3/8)
7
20
(1/4)
(13/16)
15 (1/16) or less
10 (3/8)
44(1-3/4)
Unit: mm (in)
For taking cord out of top of
remote controller
30
3
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