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7
Installation
Location
Avoid installing near machines emitting high frequency waves.
Not suitable for chemical plants such as liquefied carbon dioxide refrigerant plants.
Do not install the air conditioner in locations where iron or other metal dust is present. If iron or other metal dust
adheres to or collects on the interior of the air conditioner, it may spontaneously combust and start a fire.
A failure may occur in certain locations such as the following:
Areas with large amount of oil droplets (including machine oil) or vapors
Salty areas near oceans, etc.
Hot springs emitting sulfidizing gas, etc.
Heavily acidic or alkaline places. ( e.g. place disinfection solution is frequently sprayed at )
Special maintenance or parts are required for use in the above places. For details, contact the dealer where you
purchased the product.
Leave an enough space around the air intake and discharge of the outdoor unit so that the ventilation is not
restricted.
Avoid places where strong wind may blow against the air intake and discharge of the outdoor unit.
Attach a snow stand, snow hood, etc. to the outdoor unit for use in snowfall areas. For details, contact the dealer
where you purchased the product.
Make sure drain water from the outdoor unit is emitted into places with good drainage.
Make sure the air filter is attached to the indoor unit. If not, dust may accumulate on the heat exchanger or other
parts in the air conditioner and cause a water leak.
Keep a distance of at least 3.3 ft (1 m) between the air conditioner / remote control and a TV or radio. Failure to
observe this precaution may cause visual disturbance or noise.
Leave a distance of at least 4.9 ft (1.5 m) between the air discharge and afire a larm. If this precaution is not
observed, the alarm may not work properly or detect fire in case of fire.
Be careful of operation sounds
Locate the unit in a place secure enough so that the sounds and vibrations do not increase.
If something is placed near the air discharge of the outdoor unit, noise may increase.
Be careful not to disturb your neighbors with cool / warm air or noise coming from the air discharge of the
outdoor unit.
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Notes on operations and performance
Check before operation
Turn on the power switch at least 12 hours before
starting operation.
Make sure the ground wire is securely connected.
Make sure the air filter is attached to the indoor unit.
Heating performance
A heat pump system, which gathers outside heat and
emits it into a room, is used for heating. When the
outside air temperature falls, the heating capacity of
the unit is reduced.
When the outside temperature is low, it is
recommended that you also use other heating
equipment.
Heated air may not come out, when the outside
temperature is low (less than -13°F) and the room
temperature is 79°F or higher.
Defrosting during heating
If frost falls on the outdoor unit during heating,
defrosting is automatically performed
(for approximately 2 - 10 minutes) to increase the
heating effect.
The fan of the indoor unit is stopped during
defrosting.
3-minute protection
The outdoor unit will not operate for approximately
3 minutes after the air conditioner has been
immediately restarted after stopping, or the power
switch has been turned on. This is to protect the
system.
Power failure
In the case of a power failure, all operations stop.
To resume operations, push the ON / OFF button.
Fan rotation of a stopped
indoor unit
While other indoor units operate, the fans on
indoor units in stand-by mode rotate for several
minutes approximately once per one hour to protect
the machines.
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Protective device
(High pressure switch)
The high pressure switch stops the air conditioner
automatically when excessive load is applied to the
air conditioner.
If the protective device activates, the unit's running
stops and the operation lamp blinks.
When the protective device activates, the
indicator
and the check code are displayed on the remote
control.
The protective device may activate in the following
cases:
During cooling
When the air intake or air discharge of the
outdoor unit is blocked.
When strong wind blows continuously against the
air discharge of the outdoor unit.
During heating
When dust or dirt is excessively adhered to the
air filter of the indoor unit.
When the air discharge of the indoor unit is blocked.
NOTE
When the protective device activates, turn off the
power switch, remove the cause, and then restart
running.
4/22/23 4:50 PM
4/22/23 4:50 PM
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