Installation Of New Refrigerant Air Conditioner - Toshiba RBM-PMV0363E Installations-Handbuch

1
PRECAUTIONS FOR SAFETY
• Ask an authorized dealer or qualified installation professional to install/maintain the air conditioner.
Inappropriate installation may result in water leakage, electric shock or fire.
• Turn off the main power supply switch or breaker before attempting any electrical work.
Make sure all power switches are off. Failure to do so may cause electric shock.
• Connect the connecting wire correctly.
If the connecting wire is connected in a wrong way, electric parts may be damaged.
• When moving the air conditioner for the installation into another place, be very careful not to enter
any gaseous matter other than the specified refrigerant into the refrigeration cycle.
If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes
abnormally high and it as a result causes pipe burst and injuries on persons.
• Do not modify this unit by removing any of the safety guards or by by-passing any of the safety
interlock switches.
• Exposure of unit to water or other moisture before installation may cause a short-circuit of electrical
parts.
Do not store it in a wet basement or expose to rain or water.
• After unpacking the unit, examine it carefully if there are possible damage.
• Do not install in a place that might increase the vibration of the unit.
• To avoid personal injury (with sharp edges), be careful when handling parts.
• Perform installation work properly according to the Installation Manual.
Inappropriate installation may result in water leakage, electric shock or fire.
• When the air conditioner is installed in a small room, provide appropriate measures to ensure that
the concentration of refrigerant leakage occur in the room does not exceed the critical level.
• Install the air conditioner securely in a location where the base can sustain the weight adequately.
• Perform the specified installation work to guard against an earthquake.
If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.
• If refrigerant gas has leaked during the installation work, ventilate the room immediately.
If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.
• After the installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas
might generate.
• Electrical work must be performed by a qualified electrician in accordance with the Installation
Manual. Make sure the air conditioner uses an exclusive power supply.
An insufficient power supply capacity or inappropriate installation may cause fire.
• Use the specified wires for wiring connect the terminals securely fix.
To prevent external forces applied to the terminals from affecting the terminals.
• Conform to the regulations of the local electricity company when wiring the power supply.
Inappropriate grounding may cause electric shock.
• Do not install the air conditioner in a location subject to a risk of exposure to a combustible gas.
If a combustible gas leaks, and stays around the unit, a fire may occur.
• Tighten flare nuts using a torque wrench according to the specified method.
If the flare nuts are tightened too much, they may later break and cause refrigerant leak.
EN-3
WARNING
CAUTION
2
INSTALLATION OF NEW REFRIGERANT AIR
CONDITIONER
This PMV Kit adopts the new HFC refrigerant (R410A) which does not deplete the ozone layer.
• R410A refrigerant is apt to be affected by impurity such as water, oxidizing membrane, or oils because the
pressure of R410A refrigerant is higher than that of the former refrigerant by approx. 1.6 times.
Accompanied with adoption of the new refrigerant, refrigerating oil has been also changed.
Therefore pay attention so that water, dust, former refrigerant, or refrigerating oil does not enter into the
refrigerating cycle of the new refrigerant air conditioner during installation work.
• To prevent from mixing of refrigerant or refrigerating oil, the size of charge port of the main unit or connect-
ing section of installation tool differs from that of the air conditioner for the former refrigerant.
Accordingly the exclusive tools are required for the new refrigerant (R410A) as shown below.
• For connecting pipes, use the new and clean piping materials so that water or dust does not enter.
Required tools and cautions on handling
It is necessary to prepare the tools and parts as described below for the installation work.
The tools and parts which will be newly prepared in the following items should be restricted to the
exclusive use.
Explanation of symbols
: Newly prepared (It is necessary to use it properly exclusive to R410A separated from those for R22 or R407C.)
: Former tool is available.
Used tools
Gauge manifold Vacuuming or charging of
refrigerant and operation check
Charging hose
Charging cylinder Charges refrigerant
Gas leak detector Checks gas leak
Vacuum pump Vacuum drying
Vacuum pump with counter-flow Vacuum drying
preventive adapter
Flare tool Flare processing of pipes
Bender Bending processing of pipes
Refrigerant recovery device Recovers refrigerant
Torque wrench Tightens flare nut
Pipe cutter Cuts pipes
Brazing machine/ Brazing of pipes
Nitrogen gas cylinder
Refrigerant charging balance Charges refrigerant
Refrigerant piping
• Piping material used for the conventional refrigerant cannot be used.
• Use copper pipe with 0.8mm or more thickness for Ø6.4, Ø9.5, Ø12.7mm.
• Flare nut and flare works are also different from those of the conventional refrigerant.
Take out the flare nut attached to the unit of the air conditioner, and use it.
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Usage Proper use of tools/parts
Newly prepared, Exclusive to R410A
Newly prepared, Exclusive to R410A
Unusable (Use the Refrigerant charging balance.)
Newly prepared
Usable if a counter-flow preventive adapter is attached
: R22 (Existing article)
: Usable by adjusting size
: R22 (Existing article)
Exclusive to R410A
Newly prepared, exclusive to Ø12.7mm and Ø15.9mm
: R22 (Existing article)
: R22 (Existing article)
: R22 (Existing article)
EN
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