Safety Precautions - Toshiba RAS-25E2KVG-ND Service Manual

Read the precautions in this manual
carefully before operating the unit.
Information included in the Operation
Manual and/or Installation Manual.
Warning Indications on the Air Conditioner Unit
Warning indication
CAUTION
BURST HAZARD
Open the service valves
before the operation,
otherwise there might be
the burst.
For general public use
Power supply cord and connecting cable of appliance use shall be at least polychloroprene sheathed flexible
cord (design H07RN-F) or cord designation 60245 IEC66. (Shall be installed in accordance with national
wiring regulations.)
• Read this "SAFETY PRECAUTIONS" carefully before servicing.
• The precautions described below include the important items regarding safety. Observe them without fail.
• After the servicing work, perform a trial operation to check for any problem.
• Turn off the main power supply switch (or breaker) before the unit maintenance.
■ Important information regarding the refrigerant used
This product contains fluorinated greenhouse gases.
Do not vent gases in to the atmosphere. Refrigerant type: R32
GWP value: 675* (ex. R32 ref. AR4)
(1)
GWP = global warming potential
(1)
The refrigerant quantity is indicated on the unit name plate.
* This value is based on F gas regulation 517/2014
New Refrigerant Air Conditioner Installation
• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R32) WHICH DOES NOT
DESTROY OZONE LAYER.
R32 refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the
working pressure of R32 refrigerant is approx. 1.6 times of refrigerant R22. Accompanied with the adoption
of the new refrigerant, the refrigeration machine oil has also been changed. Therefore, during installation
work, be sure that water, dust, former refrigerant, or refrigeration machine oil does not enter into the new
type refrigerant R32 air conditioner circuit.
To prevent mixing of refrigerant or refrigerating machine oil, the sizes of connecting sections of charging
port on main unit and installation tools are different from those used for the conventional refrigerant units.
Accordingly, special tools are required for the new refrigerant (R32) units. For connecting pipes, use new
and clean piping materials with high pressure fittings made for R32 only, so that water and/or dust does not
enter. Moreover, do not use the existing piping because there are some problems with pressure fittings and
possible impurities in existing piping.
TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY
This appliance must be connected to the main power supply by a circuit breaker or a switch with a contact
separation of at least 3 mm.

1. SAFETY PRECAUTIONS

CAUTION
BURST HAZARD
Open the service valves before the operation, otherwise there might be
the burst.
CAUTION
CAUTION
CAUTION
- 3 -
This appliance is fi lled with R32.
(Flammable Material)
Service personnel should be handing this equipment
with reference to the Installation Manual.
Description