Installation Of New Refrigerant Air Conditioner - Toshiba RBC-AIP3 Installation Manual

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Installation of New Refrigerant Air Conditioner

This air conditioner adopts the new HFC refrigerant (R410A) which does not deplete the ozone layer.
 R410A refrigerant is vulnerable to impurities such as water, oxidizing membranes, or oils because the pressure of R410A refrigerant
is higher than that of the former refrigerant by approximately 1.6 times.
As well as the adoption of the new refrigerant, the refrigerating oil has been also changed. Therefore, pay attention so that water,

dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle of the new refrigerant air conditioner during
installation.
 To prevent mixing of refrigerant or refrigerating oil, the size of the charge port of the main unit or connecting section of the installation
tool differs to that of an air conditioner for the former refrigerant. Accordingly, exclusive tools are required for the new refrigerant
(R410A) as shown below.
 For connecting pipes, use 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 for installation as described below. The tools and parts which will be newly prepared in the
following items should be restricted to exclusive use.
Explanation of symbols
: Newly prepared (It is necessary to use it exclusively with R410A, separately from those for R22 or R407C.)
: Former tool is available.
Used Tools
Gauge manifold
Charging hose
Charging cylinder
Gas leak detector
Vacuum pump
Vacuum pump with counter flow
Flare tool
Bender
Refrigerant recovery device
Torque wrench
Pipe cutter
Refrigerant canister
Welding machine / Nitrogen gas
cylinder
Refrigerant charging balance
Usage Proper Use of Tools / Parts
Vacuuming, charging
refrigerant and operation
check
Charging refrigerant Unusable (Use the Refrigerant charging balance.)
Checking gas leak
Usable if a counter-flow preventive adapter is
Vacuum drying
attached
Vacuum drying
Flare processing of pipes
Bending processing of
pipes
Recovering refrigerant
Tightening flare nut
Cutting pipes
Charging refrigerant
Welding of pipes
Charging refrigerant
[8]
Exclusive to R410A
Exclusive to R410A
Exclusive to R410A
R22 (Existing article)
Usable by adjusting size
R22 (Existing article)
Exclusive to R410A
Exclusive to Ø12.7 mm and Ø15.9 mm
R22 (Existing article)
Exclusive to R410A
Enter the refrigerate name for identification
R22 (Existing article)
R22 (Existing article)