Toshiba MD-VNK802HEXE Service Manual page 141

• Install the ducts to the outside inclined downward so that rainwater does not enter the ducts. Otherwise, water will
enter the room and household goods will become wet.
• Insulate the ducts from heat using a heat insulator to prevent condensation. Otherwise, furniture may be damaged.
• If it is hot and humid in the ceiling cavity, install a ventilator. Otherwise, a fire or a short circuit may result.
• Install drain pipes to drain water securely referring to the Installation Manual. In addition, insulate the pipes from heat
to prevent condensation. Inappropriate piping results in water leaking into the room and the ceiling, floor or furniture
may be damaged.
Explanations given to user
• After the installation work, Follow the Owner's manual to explain to the customer how to use and maintain the unit.
• Do not place any combustion appliance in a place where it is directly exposed to the wind of Air to Air Heat Exchanger
with DX Coil Unit, otherwise it may cause imperfect combustion.
• For safety, turn off the unit if you do not use it for a long time. A fire or an electric shock may result due to insulation
degradation.
Relocation
• Only a qualified installer (*1) or qualified service person (*1) is allowed to relocate the Air to Air Heat Exchanger with
DX Coil Unit. It is dangerous for the Air to Air Heat Exchanger with DX Coil Unit to be relocated by an unqualified
individual since a fire, electric shocks, injury, water leakage, noise and / or vibration may result.
• For the refrigerant recovery work (collection of refrigerant from the pipe to the compressor), stop the compressor
before disconnecting the refrigerant pipe. If the refrigerant pipe is disconnected while the compressor is working with
the valve open, the compressor sucks air and the refrigeration cycle is overpressurized, which may cause a burst or
injury.
Refrigerant piping
• Install the refrigerant pipe securely during the installation work before operating the compressor. 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.
• 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.
• Only a qualified installer (*1) or qualified service person (*1) is allowed to do installation work. If installation is carried
out by an unqualified individual, a fire, electric shocks, injury, water leakage, noise and / or vibration may result.
Electrical wiring
• 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.
• Be sure to connect earth wire. (Grounding work)
• Incomplete earthing cause an electric shock.
• Do not connect earth wires to gas pipes, water pipes, 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.
• When you have noticed that some kind of trouble (such as when an error display has appeared, there is a smell of
burning, abnormal sounds are heard, the Air to Air Heat Exchanger with DX Coil Unit falls to cool or heat, or water is
leaking) has occurred in the Air to Air Heat Exchanger with DX Coil Unit, do not touch the Air to Air Heat Exchanger
with DX Coil Unit yourself but set the circuit breaker to the OFF position, and contact a qualified service person (*1).
Take steps to ensure that the power will not be turned on (by marking "out of service" near the circuit breaker, for
instance) until qualified service person arrives. Continuing to use the Air to Air Heat Exchanger with DX Coil Unit in
the trouble status may cause mechanical problems to escalate or result in electric shocks, etc.
• 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 to
Air Heat Exchanger with DX Coil Unit.
• Use the rated voltage. Otherwise, a fire or an electric shock may result.
• Connect power cords or connection wires securely so that the power supply cover is attached properly. Otherwise,
a fire or an electric shock may result.
• Do not install the unit or the switch in a humid place such as a bathroom. Otherwise, a fire or an electric shock may
result.
(*1) Refer to the "Definition of Qualified Installer or Qualified Service Person."
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Installation Manual