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SMMS 1-Way Cassette SH Type
• Install the indoor unit at least 2.5 m above the floor level since
otherwise the users may injure themselves or receive electric shocks
if they poke their fingers or other objects into the indoor unit while the
air conditioner is running.
• Do not place any combustion appliance in a place where it is directly
exposed to the wind of air conditioner, otherwise it may cause
imperfect combustion.
Installation
• When the indoor unit is to be suspended, the designated hanging
bolts (M10 or W3/8) and nuts (M10 or W3/8) must be used.
• Install the air conditioner at enough strong places to withstand the
weight of the unit. If the strength is not enough, the unit may fall down
resulting in injury.
• Follow the instructions in the Installation Manual to install the air
conditioner. Failure to follow these instructions may cause the
product to fall down or topple over or give rise to noise, vibration,
water leakage, etc.
• Carry out the specified 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
fire, 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 flare nut with a torque wrench in the specified manner.
Excessive tighten of the flare nut may cause a crack in the flare nut
after a long period, which may result in refrigerant leakage.
• After the installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks into the room and flows near a fire source,
such as a cooking range, noxious gas may be generated.
7-EN
Installation Manual
SMMS 1-Way Cassette SH Type
• 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.
• If refrigerant gas has leaked during the installation work, ventilate the
room immediately. If the leaked refrigerant gas comes in contact with
fire, noxious gas may be generated.
Electrical wiring
• Only a qualified installer(*1) or qualified 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 unqualified individual
since failure to carry out the work properly may result in electric
shocks and/or electrical leaks.
• When connecting the electrical wires, repairing the electrical parts or
undertaking 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 specifications in the Installation Manual and
the stipulations in the local regulations and laws. Use of wiring which
does not meet the specifications may give rise to electric shocks,
electrical leakage, smoking and/or a fire.
• Connect earth wire. (Grounding work)
Incomplete grounding causes an electric shock.
• Do not connect earth wires to gas pipes, water pipes, and lightning
rods or earth wires for telephone wires.
• After completing the repair or relocation work, check that the earth
wires are connected properly.
• Install a circuit breaker that meets the specifications 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 fire.
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Installation Manual
EN
8-EN
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