EDUS39-600-F2_a Installation
FXDQ-M 25
8. INSTALLING THE DUCT
Connect the duct supplied in the field.
Air inlet side
• Attach the duct and intake-side flange (field supply).
• Connect the flange to the main unit with accessory screws
(in 20 or 24 positions).
• Wrap the intake-side flange and duct connection area with
aluminum tape or something similar to prevent air escap-
ing.
CAUTION
When attaching a duct to the intake side, be sure to attach an
air filter inside the air passage on the intake side. (Use an air
filter whose dust collecting efficiency is at least 50% in a
gravimetric technique.)
The included filter is not used when the intake duct is
attached.
Air outlet side
• Connect the duct according to the air inside of the outlet-
side flange.
• Wrap the outlet-side flange and the duct connection area
with aluminum tape or something similar to prevent air
escaping.
CAUTION
• Be sure to insulate the duct to prevent condensation from
forming. (Material: glass wool or polyethylene foam, 1 in.
thick)
• Use electric insulation between the duct and the wall when
using metal ducts to pass metal laths of the net or fence
shape or metal plating into wooden buildings.
• Be sure to explain how to clean local procurementssuch as
air filters and grilles to your customer.
9. ELECTRIC WIRING WORK
9-1 GENERAL INSTRUCTIONS
• Shut off the power before doing any work.
• All field supplied parts and materials, electric works must
conform to local codes.
• Use copper wire only.
• See also the Wiring Diagram label attached to the control
box lid when laying electrical wiring.
• For details on hooking up the remote controller, refer to the
REMOTE CONTROLLER INSTALLATION MANUAL.
• All wiring must be performed by an authorized electrician.
• This system consists of multiple indoor units. Mark each
indoor unit as unit A, unit B , and so forth, and be sure the
CAUTION
• The electric wiring work shall be performed by qualified
electricians.
•If workers not having the electrician qualification have per-
formed the electric wiring work, the steps 3 to 7 shall be
performed after the TEST RUN.
1. Remove the lid of the control box. Connect the remote
controller and power supply (single-phase, 60Hz 208-
230V) respectively to the terminal block and securely
connect the ground also as shown in the figure below.
Securely clamp the cables with the accessory clamps
(9)(10) as shown in Fig. 14 so that tension will not be
applied on the cable connection areas.
2. Confirm that the lid of the control box is closed before
turning on the power.
3. Remove the inspection lid.
4. Gradually pour approximately 2 quarts of water from
the water inlet into the drain pan to check drainage.
CAUTION
Be sure to prevent external force from being exerted on
the float switch or breakage can occur. Attach the
inspection lid
5. Perform the following operation using the remote con-
troller, and check drainage.
• Select the inspection/test operation button “ ”
using the remote controller. The unit will engage the
test operation. Press the operation selector button
“ ”, and select FAN OPERATION “”.
• Press the ON/OFF button “ ”. The indoor fan and
drain pump will operate.
CAUTION
Be cautious of the fan turning simultaneously. Do not
touch the drain pump to prevent electric shock.
6. Make sure to use the remote controller in finishing the
operation.
TEST
TRANSMISSION
WIRING
REMOTE
CNTRL
T1F1
FORCED
OFF
P2 F2P1 T2
TRANSMISSION
WIRING
REMOTE
CNTRL
T1F1
FORCED
OFF
P2 F2P1 T2
L N
L2L1
Water inlet
Portable pump
Inspection lid
Refrigerant pipes
Bucket
Service drain hole
Drain outlet
(with rubber cap)
Indoor PCboard
(ASSY)
Terminal block
Terminal block
Remote controller
terminal connection
method
Power supply:
Single phase,
60Hz,208-230V
Power terminal
connection
method
Connection screw (7)
(accessory)
(Field supply)
(Field supply)
(Field supply)
(Field supply)
Flange
Flange
Aluminum tape
Aluminum tape
Main unit
Insulation
material
Air inlet side
Air outlet side
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