Toshiba MMW-AP0271LQ-E Manuel D'installation page 6

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• 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.
• 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 hot water module after having completed the
work, check that the electrical parts box cover (the front panel) of the
hot water module 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 first conducting these
checks.
• If there is any kind of trouble (such as a check code display has
appeared, smell of burning, abnormal sounds, the hot water module
fails to heat or water is leaking) has occurred in the hot water module,
do not touch the hot water module yourself but set the circuit breaker
to the OFF position, and contact a qualified 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 qualified service
person arrives. Continuing to use the hot water module in the trouble
status may cause mechanical problems to escalate or result in
electric shocks or other trouble.
• After the work has finished, use an insulation tester set (500 V
Megger) to check the resistance is 1 MΩ 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 hot water module 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 hot water module.
• If the fan grille is damaged, do not approach the outdoor unit but set
the circuit breaker to the OFF position, and contact a qualified service
person (*1) to have the repairs done. Do not set the circuit breaker to
the ON position until the repairs are completed.
9-EN
– 5 –
Relocation
• Only a qualified installer (*1) or qualified service person (*1) is
allowed to relocate the hot water module. It is dangerous for the hot
water module to be relocated by an unqualified individual since a fire,
electric shocks, injury, water leakage, noise and / or vibration may
result.
• When carrying out the pump-down work shut down the compressor
before disconnecting the refrigerant pipe. Disconnecting the
refrigerant pipe with the service valve left open and the compressor
still operating will cause air or other gas to be sucked in, raising the
pressure inside the refrigeration cycle to an abnormally high level,
and possibly resulting in rupture, injury or other trouble.
CAUTION
R410A refrigerant hot water module Installation
• THIS HOT WATER MODULE ADOPTS THE HFC REFRIGERANT
(R410A) WHICH DOES NOT DESTROY OZONE LAYER.
• The characteristics of R410A refrigerant are; easy to absorb water,
oxidizing membrane or oil, and its pressure is approx. 1.6 times
higher than that of refrigerant R22. Accompanied with the R410A
refrigerant, refrigerating oil has also been changed. Therefore, do not
let water, dust, former refrigerant, or refrigerating oil enter the
refrigerating cycle during installation work.
• To prevent charging an incorrect refrigerant and refrigerating oil, the
sizes of connecting sections of charging port of the main unit and
installation tools are changed from those for the conventional
refrigerant.
• Accordingly the exclusive tools are required for the R410A refrigerant.
• For connecting pipes, use new and clean piping designed for R410A,
and please care so that water or dust does not enter.
To Disconnect the Appliance from Main Power Supply.
• This appliance must be connected to the main power supply by
means of a switch with a contact separation of at least 3 mm.
(*1) Refer to the "Definition of Qualified Installer or Qualified Service Person."
10-EN

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