En-15
8. FRESH-AIR INTAKE
(1) Open up the knockout hole for the fresh-air intake (If using half-concealed installation,
open up the top knockout hole instead.)
For half concealed instal-
lation
Indoor unit
CAUTION
When removing the cabinet (iron plate), be careful not to damage the indoor unit
internal parts and surrounding area (outer case).
When processing the cabinet (iron plate), be careful not to injure yourself with burrs,
etc.
(2) Fasten the round
fl
ange (optional) to the fresh-air intake (If using half-concealed instal-
lation, attach to the top.)
Round duct (Option parts)
[After completing “3.3. Installing the unit”…]
(3) Connect the duct to the round
fl
ange.
(4) Seal with a band and vinyl tape, etc. so that air does not leak from the connection.
Duct
9. FINISHING
(1) Reattach cover A and B. Then fasten the control box back into its original position us-
ing the 4 tapping screws.
Cover A
Top of the Cover A
Top of the Cover B
Cover B
(2) Attach the remote controller cable, transmission cable, power supply cable and cable
clips. Make sure that they are positioned so that they will not interfere with opening and
closing of the intake grille or with removal and installation of the air
fi
lters.
Cable clip
Remote controller cable
Transmission cable
Power supply cable
(3) Close the piping outlet with the closing material (putty etc.).
(4) Install the
fi
lter guide.
(5) Install the intake grilles.
(6) Install side covers A and B (if the unit is installed in a half-concealed orientation, only
install side cover A).
(7) Install the air
fi
lters.
10. TEST RUN
]1
10.1. Test run using Outdoor unit (PCB)
• Refer to the Installation Manual for the outdoor unit if the PCB for the outdoor unit is to
be used for the test run.
10.2. Test run using remote controller
• Refer to the Installation Manual for the remote controller to perform the test run using
the remote controller.
• When the air conditioner is being test run, the OPERATION and TIMER indicator lamps
fl
ash slowly at the same time.
11. CHECK LIST
]1
Pay special attention to the check items below when installing the indoor unit(s).
After installation is complete, be sure to check the following check items again.
Check items
If not performed correctly
Check
box
Has the indoor unit been
installed correctly?
Vibration, noise, indoor unit may drop
Has there been a check for
gas leaks (refrigerant pipes)?
No cooling, No heating
Has heat insulation work
been completed?
Water leakage
Does water drain eas-
ily from the indoor units?
Water leakage
Is the voltage of the power
source the same as that indicated
on the label on the indoor unit?
No operation, heat or burn damage
Are the wires and pipes all
connected completely?
No operation, heat or burn damage
Is the indoor unit earthed
(grounded)?
Short circuit
Is the connection cable the
speci
fi
ed thickness?
No operation, heat or burn damage
Are the inlets and outlets
free of any obstacles?
No cooling, No heating
Does start and stop air con-
ditioner operation by remote
controller or external device?
No operation
After installation is completed,
has the proper operation and han-
dling been explained to the user?
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