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Idiomas disponibles
Idiomas disponibles
7.1. Fresh air inlet, duct installations, and
operating restrictions
This unit has an fresh air inlet on each side of the unit. Use the one that suits a
particular application.
[Fig. 7.1.1] (P.3)
A Fresh air inlet (on both sides)
Caution:
1 1 1 1 1 Properly seal duct connections.
2 2 2 2 2 Install a proper size filter at the opening of the inlet, and clean the filter
on a regular basis.
3 3 3 3 3 Install a duct longer than 850 mm or block the opening of the inlet with a
wire net to keep hands out of the inlet.
8. Remote controller
8.1. Installing procedures
(1) Select an installing position for the remote controller (switch box).
Be sure to observe the following precautions.
[Fig. 8.1.1.(1)] (P.4)
A Remote controller profile
B Required clearances surrounding the remote controller
C Temperature sensor
1 The temperature sensors are located on both remote controller and unit. To
use the temperature sensor on the remote controller, mainly use the remote
controller for temperature setting or room temperature detection. Install the
remote controller in such an area that can detect average room temperatures,
free of direct sunlight, airflow from the air conditioner, and other such heating
source.
2 In either case when the remote controller is installed in the switch box or on the
wall, provide the clearances indicated in the diagram.
Note:
Check that there is no electric wire left close to the remote controller sensor.
If any electric wire is near the sensor, the remote controller may fail to detect
a correct room temperature.
3 Procure the following parts locally:
Switch box for two pieces
Thin copper conduit tube
Lock nuts and bushings
(2) Seal the service entrance for the remote controller cord with putty to
prevent possible invasion of dew drops, water, cockroaches or worms.
<A> For installation in the switch box:
•
When the remote controller is installed in the switch box, seal the junction
between the switch box and the conduit tube with putty.
<B> For direct installation on the wall select one of the following:
B-1. To lead the remote controller cord from the back of the controller:
•
Prepare a hole through the wall to pass the remote controller cord (in order to
run the remote controller cord from the back), then seal the hole with putty.
B-2. To run the remote controller cord through the upper portion:
•
Run the remote controller cord through the cut-out upper case, then seal the
cut-out notch with putty similarly as above.
[Fig. 8.1.1.(2)] (P.4)
C Wall
D Conduit
F Bushing
G Switch box
H Remote controller cord
(3) Install the lower case in the switch box or on the wall.
[Fig. 8.1.1.(3)] (P.4)
<A> For installation in the switch box
C Switch box for two pieces
E Cross-recessed, pan-head screw
G Seal the remote controller cord service entrance with putty
<B> For direct installation on the wall
H Wood screw
Caution:
Do not over-tighten the screws to possible deformed or broken lower case.
Note:
•
Select a flat place for installation.
•
Be sure to use two or more locations for securing of the remote control-
ler in the switch box or on the wall.
D Installation pitch
E Lock nut
I Seal with putty
D Remote controller cord
4 4 4 4 4 The opening of the connected duct must not be facing up as rain or snow
will enter the duct.
5 5 5 5 5 Be sure that the temperature of the mixed air (return air and outside air)
falls within the following ranges:
In the case of cooling operation: mixed air temperature 15
(30 - 80% RH)
In the case of heating operation: mixed air temperature 15
6 6 6 6 6 Install a reverse air-flow prevention plate inside return and supply ducts
to prevent the back flow of air during unit stoppage.
[Fig. 7.1.2] (P.3)
A Filter (Field supply)
B Fresh air inlet duct (Field supply)
8.2. Connecting procedures
•
The remote controller cord can be extended up to a maximum of 200 m. Use
electric wires or (two-core) cables of 0.3 mm
tion of remote controller. Do not use multi-conductor cables to prevent possi-
ble malfunction of the unit.
(1) Connect the remote controller cord to the terminal block at the lower
case.
[Fig. 8.2.1] (P.4)
A To TB5 on the unit
B Terminal block TB6 in remote controller
No polarity
Caution:
•
Do not use crimp-style terminals for connection to the remote controller
terminal block to eliminate contact with the boards and resultant trouble.
•
Prevent remote cord chips from getting into the remote controller. Elec-
tric shock or malfunction may result.
8.3. Fitting the upper case
[Fig. 8.3.1] (P.4)
(1) To remove the upper case, put a slotted screwdriver tip in the latches as
shown in the diagram then move the screwdriver in the direction of ar-
row.
(2) To install the upper case, put the upper latches (at two locations) first,
then fit the upper case into the lower case as illustrated.
[Fig. 8.3.2] (P.4)
Note:
Wiring hole for installing directly on the wall (or open wiring)
•
Cut off the shaded area from the upper case using a knife, nippers, etc.
•
Take out the remote control cord connected to the terminal block via this
portion.
Caution:
•
Do not move the screwdriver while inserting the tip far into the latches to
prevent broken latches.
•
Be sure to put the upper case securely in the latches by pressing it until
a snap sounds. Loosely inserted, the upper case may fall down.
Note:
The operating section is covered with a protective sheet. Before using the
unit, remember to remove the protective sheet.
°
°
CWB - 24
CWB
°
°
CDB - 32
CDB
2
2
to 1.25 mm
for making connec-
9
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