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Concealed Duct High Static Pressure
Installation Manual
Concealed Duct High Static Pressure
Installation Manual
3
1,2
10 TEST RUN
n Before test run
• Before turning on the power supply, carry out the
following procedure.
1) Using 500V-megger, check that resistance of 1MΩ or
more exists between the terminal block 1 to 3 and the
earth (grounding).
If resistance of less than 1MΩ is detected, do not run
the unit.
2) Check the valve of the outdoor unit being opened
fully.
• To protect the compressor at activation time, leave
power-ON for 12 hours or more before operating.
n Execute a test run
Using the wired remote controller, operate the unit as
usual.
For the procedure of the operation, refer to the attached
Owner’s Manual.
A forced test run can be executed in the following
procedure even if the operation stops by thermostat-OFF.
In order to prevent a serial operation, the forced test run is
released after 60 minutes have passed and returns to the
usual operation.
CAUTION
• Do not use the forced test run for cases other than the
test run because it applies an excessive load to the
devices.
Procedure 1
Keep button pushed for 4 seconds or more.
[TEST] is displayed on the display part and the selection of
mode in the test mode is permitted.
Procedure 4
After the test run, push button to stop a test run.
(Display part is same as procedure 1.)
Procedure 5
Push check button to cancel (release from) the test run
mode. ([TEST] disappears on the display and the status
returns to a normal.)
2, 4
3
1,5
Procedure 2
Push button.
Procedure 3
Using button, select the operation mode, [Cool] or
[Heat].
• Do not run the air conditioner in a mode other than [Cool]
or [Heat].
• The temperature controlling function does not work
during test run.
• The detection of error is performed as usual.
11 MAINTENANCE
CAUTION
When connecting a return air duct to the unit, the cleaning method of the air filter differs according
to the construction of duct end. Ask a qualified installer or qualified service person.
<Daily maintenance>
Cleaning of air filter
1. If is displayed on the remote controller, contact to qualified
installer or qualified service person.
2. Take out the air filter.
• Push the extrusion of the air filter to inside and pull out it to
take out the air filter.
3. Cleaning with water or vacuum cleaner
• If dirt is heavy, clean the air filter by tepid water with neutral
detergent or water.
• After cleaning with water, dry the air filter sufficiently in a
shade place.
4. Mount the air filter.
5. After cleaning, push
.
display disappears.
CAUTION
• Do not start the air conditioner while leaving air filter removed.
• Push the filter reset button. ( indication will be turn off.)
PERIODIC MAINTENANCE
• For environmental conservation, it is strongly recommended that the indoor and outdoor units of the air conditioner in use
be cleaned and maintained regularly to ensure efficient operation of the air conditioner.
When the air conditioner is operated for a long time, periodic maintenance (once a year) is recommended.
Furthermore, regularly check the outdoor unit for rust and scratches, and remove them or apply rustproof treatment, if
necessary.
As a general rule, when an indoor unit is operated for 8 hours or more daily, clean the indoor unit and outdoor unit at least
once every 3 months. Ask a professional for this cleaning/maintenance work.
Such maintenance can extend the life of the product though it involves the owner’s expense.
Failure to clean the indoor and outdoor units regularly will result in poor performance, freezing, water leakage, and even
compressor failure.
• When a drain pump kit (sold separately) is installed.
If it is used in a place full of dust or oil mist, the pump will be clogged and proper drainage is disabled.
Clean the drain pump periodically. For how to clean the drain pump, contact the dealer.
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