Precautions For Safety - Toshiba MMK-AP0074MH-E Service Manual
Hide thumbs
Also See for MMK-AP0074MH-E:
- Service manual (102 pages) ,
- Installation manual (44 pages) ,
- Owner's manual (36 pages)
Table of Contents
Advertisement
SMMS High-Wall Type
1.
Precautions for Safety
The manufacturer shall not assume any liability for the damage caused by not observing the description of
this manual.
WARNING
General
• Before starting to install the air conditioner, read through the Installation Manual carefully, and follow its
instructions to install the air conditioner.
• Only a qualified installer or service person is allowed to do installation work. Inappropriate installation
may result in water leakage, electric shock or fire.
• Do not use any refrigerant different from the one specified for complement or replacement. Otherwise,
abnormally high pressure may be generated in the refrigeration cycle, which may result in a failure or
explosion of the product or an injury to your body.
• Before opening the intake grille of the indoor unit or service panel of the outdoor unit, set the circuit
breaker to the OFF position. Failure to set the circuit breaker to the OFF position may result in electric
shocks through contact with the interior parts. Only a qualified installer(*1) or qualified service
person(*1) is allowed to remove the intake grille of the indoor unit or service panel of the outdoor unit
and do the work required.
• Before carrying out the installation, maintenance, repair or removal work, set the circuit breaker to the
OFF position. Otherwise, electric shocks may result.
• Place a "Work in progress" sign near the circuit breaker while the installation, maintenance, repair or
removal work is being carried out. There is a danger of electric shocks if the circuit breaker is set to ON
by mistake.
• Only a qualified installer(*1) or qualified service person(*1) is allowed to undertake work at heights using
a stand of 50 cm or more or to remove the intake grille of the indoor unit to undertake work.
• Wear protective gloves and safety work clothing during installation, servicing and removal.
• Do not touch the aluminium fin of the unit. You may injure yourself if you do so. If the fin must be touched
for some reason, first put on protective gloves and safety work clothing, and then proceed.
• Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects may fall off of
the outdoor unit and result in injury.
• When work is performed at heights, use a ladder which complies with the ISO 14122 standard, and
follow the procedure in the ladder's instructions. Also wear a helmet for use in industry as protective
gear to undertake the work.
• Before cleaning the filter or other parts of the outdoor unit, set the circuit breaker to OFF without fail,
and place a "Work in progress" sign near the circuit breaker before proceeding with the work.
• Before working at heights, put a sign in place so that no-one will approach the work location, before
proceeding with the work. Parts and other objects may fall from above, possibly injuring a person below.
While carrying out the work, wear a helmet for protection from falling objects.
• The refrigerant used by this air conditioner is the R410A.
• The air conditioner must be transported in stable condition. If any part of the product is broken, contact
the dealer.
• When the air conditioner must be transported by hand, carry it by two or more people.
• Do not move or repair any unit by yourself. There is high voltage inside the unit. You may get electric
shock when removing the cover and main unit.
5-EN
Installation Manual
– 5 –
SMMS High-Wall Type
Selection of installation location
• When the air conditioner is installed in a small room, provide appropriate measures to ensure that the
concentration of refrigerant leakage occur in the room does not exceed the critical level.
• Do not install in a location where flammable gas leaks are possible. If the gas leak and accumulate
around the unit, it may ignite and cause a fire.
• To transport the air conditioner, wear shoes with additional protective toe caps.
• To transport the air conditioner, do not take hold of the bands around the packing carton. You may injure
yourself if the bands should break.
• 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 securely in a location where the base can sustain the weight adequately. 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 or other trouble.
• 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.
• 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.
– 6 –
Installation Manual
6-EN
Hide quick links:
Advertisement
Table of Contents
