Toshiba RBC-TRP100E, Installation Manual

Page: 5 / 25

Branch Kit 1:3
4
EN
EN
CAUTION
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 outdoor 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. Moreover, do not use the existing piping because
there are problems with pressure-resistance force and impurity in it.
• The three indoor units of TOSHIBA simultaneous triple packaged air conditioning
system are the same units.
• Set and install the header and follower units taking the installation site into
consideration.
(Be certain to use the new refrigerant R410A in the indoor units.)
The indoor unit connected to the remote controller will be the header unit.
Wiring
•
TO DISCONNECT THE APPLIANCE FROM MAIN POWER SUPPLY.
• This appliance must be connected to the main supply by means of a switch with a
contact separation of at least 3 mm.
• The remote controller cannot be connected to all the three indoor units (header and
follower units).
Connect it only to the indoor unit that will become the header indoor unit (Unit A).
Connecting the remote controller to the follower indoor unit will cause malfunction.
Refrigerant Piping (Branch piping system is used for refrigerant piping)
• Compared with R22, pressure of R410A is about 1.6 times. Unless the piping is installed
correctly, gas leak may be caused during operation such as pressure boosting. Conduct
a leak test of the pipe connecting parts correctly.
• In case the actual length of the piping exceeds the standard piping length, accurately
add the refrigerant referring to Additional Refrigerant Amount.
• Heat insulation materials for the branch pipes are not supplied as accessories. Provide
heat insulation correctly using fitting covers or other materials sold on the market. For
further information, read Refrigerant Piping and Piping heat Insulation on this manual.
Improper heat insulation work will result in a failure and a claim.