Toshiba MD-VNK802HEXE Service Manual page 139

1
Precautions for Safety
WARNING
General
• Before starting to install the Air to Air Heat Exchanger with DX Coil Unit, read carefully through the Installation
Manual, and follow its instructions to install the Air to Air Heat Exchanger with DX Coil Unit.
• Install the Air to Air Heat Exchanger with DX Coil 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 Air to Air Heat
Exchanger with DX Coil Unit while it is running.
• Before opening the electrical control cover, inspection cover or maintenance cover of the Air to Air Heat Exchanger
with DX Coil 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 undertake work at heights using a stand of
50 cm or more or to remove the electrical control cover, inspection cover or maintenance cover of the Air to Air Heat
Exchanger with DX Coil Unit to undertake work.
• When working 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.
• Only a qualified installer (*1) or qualified service person (*1) is allowed to carry out the electrical work of Air to Air
Heat Exchanger with DX Coil Unit.
• 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.
• 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 / short circuit.
• When repairing the electrical parts or undertaking other electrical jobs, wear gloves to provide protection for
electricians and from heat. Failure to wear this protective gear may result in burn.
• Before carrying out the installation, maintenance, repair or removal work be sure to set the circuit breaker for the Air
to Air Heat Exchamger Unit 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.
• When cleaning the filter, heat exchange element or humidifier of the Air to Air Heat Exchanger with DX Coil 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 opening the electrical control cover, inspection cover and maintenance cover of the Air to Air Heat Exchanger
with DX Coil 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 electrical control cover,
inspection cover and maintenance cover of the Air to Air Heat Exchanger with DX Coil Unit and do the work required.
• 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 electrical control box cover, inspection cover or maintenance cover of the Air to Air
Heat Exchanger with DX Coil Unit to undertake work.
• When working 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.
• When cleaning the filter, heat exchange element or humidifier of the Air to Air Heat Exchanger with DX Coil 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.
• Do not install the Air to Air Heat Exchanger with DX Coil Unit in a location that may be subject to a risk of expire to a
combustible gas. If a combustible gas leaks and becomes concentrated around the unit, a fire may occur.
• Do not place any combustion appliance in a place where it is directly exposed to the wind of Air to Air Heat Exchange
with DX Coil unit, otherwise it may cause imperfect combustion.
• 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.
• After the installation or servicing work, check the refrigerant gas does not leak.
• If refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire such as fan heater, stove or
cooking stove though the refrigerant gas itself is innocuous.
• Inspect the Air to Air Heat Exchanger with DX Coil Unit for any falling hazard of the unit before maintenance or repair.
• Do not modify the products. Do not also disassemble or modify the parts. It may cause a fire, electric or injury.
Selection of installation location
• Install the Air to Air Heat Exchanger with DX Coil Unit securely in a location where the base can sustain the weight
adequately. If the strength is insufficient, the unit may fall down resulting in human injury.
• Do not install the unit in places 1) with high temperature 2) where the unit is subject to direct fire 3) where much oil
smoke is generated. Otherwise, a fire may result.
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Installation Manual