Installation Manual
7-EN
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7-EN
SMMS High-Wall Type
Installation Manual
topple over or give rise to noise, vibration, water leakage or other trouble.
• Carry out the specied installation work to guard against the possibility of high
winds and earthquake. If the air conditioner is not installed appropriately, a
unit may topple over or fall down, causing an accident.
• If refrigerant gas has leaked during the installation work, ventilate the room
immediately. If the leaked refrigerant gas comes in contact with
re, noxious
gas may generate.
• Use forklift to carry in the air conditioner units and use winch or hoist at
installation of them.
Refrigerant piping
• Install the refrigerant pipe securely during the installation work before
operating the air conditioner. If the compressor is operated with the valve
open and without refrigerant pipe, the compressor sucks air and the
refrigeration cycles is over pressurized, which may cause a injury.
• Tighten the
are nut with a torque wrench in the speci
ed manner.
Excessive tighten of the
are nut may cause a crack in the
are nut after a
long period, which may result in refrigerant leakage.
• After the installation work, con
rm that refrigerant gas does not leak. If
refrigerant gas leaks into the room and
ows near a
re source, such as a
cooking range, noxious gas may be generated.
• When the air conditioner has been installed or relocated, follow the
instructions in the Installation Manual and purge the air completely so that no
gases other than the refrigerant will be mixed in the refrigerating cycle.
Failure to purge the air completely may cause the air conditioner to
malfunction.
• Nitrogen gas must be used for the airtight test.
• The charge hose must be connected in such a way that it is not slack.
Electrical wiring
• Only a quali
ed installer(*1) or quali
ed service person(*1) is allowed to
carry out the electrical work of the air conditioner. Under no circumstances
must this work be done by an unquali
ed individual since failure to carry out
the work properly may result in electric shocks and/or electrical leaks.
• To connect the electrical wires, repair the electrical parts or undertake
other electrical jobs, wear gloves to provide protection for electricians and
from heat, insulating shoes and clothing to provide protection from electric
shocks. Failure to wear this protective gear may result in electric shocks.
• Use wiring that meets the speci
cations in the Installation Manual and the
stipulations in the local regulations and laws. Use of wiring which does not
meet the speci
cations may give rise to electric shocks, electrical leakage,
smoking and/or a
re.
• Connect earth wire. (grounding work)
Incomplete grounding causes an electric shock.
• Do not connect earth wires to gas pipes, water pipes, and lightning
conductor or telephone earth wires.
• After completing the repair or relocation work, check that the earth wires are
connected properly.
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EN
SMMS High-Wall Type
Installation Manual
• Install a circuit breaker that meets the speci
cations in the installation
manual and the stipulations in the local regulations and laws.
• Install the circuit breaker where it can be easily accessed by the agent.
• When installing the circuit breaker outdoors, install one which is designed to
be used outdoors.
• Under no circumstances the power wire must not be extended. Connection
trouble in the places where the wire is extended may give rise to smoking
and/or a
re.
• Electrical wiring work shall be conducted according to law and regulation
in the community and installation manual. Failure to do so may result in
electrocution or short circuit.
Test run
• Before operating the air conditioner after having completed the work, check
that the electrical control box cover of the indoor unit and service panel of
the outdoor unit are closed, and set the circuit breaker to the ON position.
You may receive an electric shock if the power is turned on without
rst
conducting these checks.
• If there is any kind of trouble (such as an error display has appeared, smell
of burning, abnormal sounds, the air conditioner fails to cool or heat or
water is leaking) has occurred in the air conditioner, do not touch the air
conditioner yourself but set the circuit breaker to the OFF position, and
contact a quali
ed service person. Take steps to ensure that the power will
not be turned on (by marking “out of service” near the circuit breaker, for
instance) until quali
ed service person(*1) arrives. Continuing to use the air
conditioner in the trouble status may cause mechanical problems to escalate
or result in electric shocks or other trouble.
• After the work has
nished, use an insulation tester set (500 V Megger) to
check the resistance is 1 M
Ω
or more between the charge section and the
non-charge metal section (earth section). If the resistance value is low, a
disaster such as a leak or electric shock is caused at user’s side.
• Upon completion of the installation work, check for refrigerant leaks and
check the insulation resistance and water drainage. Then conduct a test run
to check that the air conditioner is operating properly.
Explanations given to user
• Upon completion of the installation work, tell the user where the circuit
breaker is located. If the user does not know where the circuit breaker is, he
or she will not be able to turn it off in the event that trouble has occurred in
the air conditioner.
• If the fan grille is damaged, do not approach the outdoor unit but set the
circuit breaker to the OFF position, and contact a quali
ed service person(*1)
to have the repairs done. Do not set the circuit breaker to the ON position
until the repairs are completed.
• After the installation work, follow the Owner’s Manual to explain to the
customer how to use and maintain the unit.
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