Toshiba MMK-AP0073HP1-E1 Service Manual page 31

SMMS High-Wall Type
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 air conditioner.
• 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.
• After the installation work, follow the Owner's Manual to explain to the customer how to use and maintain the
unit.
Relocation
• Only a qualified installer(*1) or qualified service person(*1) is allowed to relocate the air conditioner. It is
dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric shocks,
injury, water leakage, noise and/or vibration may result.
• While 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.
New refrigerant air conditioner installation
• This air conditioner adopts the new 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 new refrigerant,
refrigerating oil has also been changed. Therefore, during installation work, be sure that water, dust, former
refrigerant, or refrigerating oil does not enter the refrigerating cycle.
• 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 new refrigerant (R410A).
• 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.
The installation fuse (all types can be used) must be used for the power supply line of this
conditioner .
Install the indoor unit at least 2 .0 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 .
(*1) Refer to the "Definition of Qualified Installer or Qualified Service Person".
CAUTION
31
Installation Manual