Required Tools For R410A; Tools Exclusive For R410A; General Tools (Conventional Tools Can Be Used.) - Toshiba MMY-MAP0804HT8-E Service Manual

4. Tools

(1) Required Tools for R410A

Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc.
Accordingly, the tools to be used are classified into the following three types.
1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))
2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)
3) Tools commonly used for R410A and for conventional refrigerant (R22)
The table below shows the tools exclusive for R410A and their interchangeability.
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.
Gauge manifold
Charging hose
Charging cylinder
Gas leak detector
Vacuum pump
Vacuum pump with counterflow
Flare tool
Bender
Refrigerant recovery device
Torque wrench
Pipe cutter
Refrigerant canister
Welding machine/Nitrogen gas
cylinder
Refrigerant charging balance
(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection
(Note 2) Charging cylinder for R410A is being currently developed.
In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as
the general tools.
(1) Vacuum pump
Use vacuum pump by attaching vacuum pump
adapter.
(2) Torque wrench
(3) Pipe cutter
(4) Reamer
(5) Pipe bender
(6) Level vial
Also prepare the following equipments for other installation method and run check.
(1) Clamp meter
(2) Thermometer
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Tools exclusive for R410A (The following tools for R410A are required.)
Used tools
Vacuuming, charging refrigerant
and operation check
Charging refrigerant
Checking gas leak
Vacuum drying
Vacuum drying
Flare processing of pipes
Bending processing of pipes
Recovering refrigerant
Tightening flare nut
Cutting pipes
Charging refrigerant
Welding of pipes
Charging refrigerant
margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.

General tools (Conventional tools can be used.)

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Usage
Exclusive to R410A
Exclusive to R410A
Unusable (Use the Refrigerant charging balance.)
Exclusive to R410A
Usable if a counter-flow preventive adapter is attached
R22 (Existing article)
Usable by adjusting size
R22 (Existing article)
Exclusive to R410A
Exclusive to Ø12.7mm and Ø15.9mm
R22 (Existing article)
Exclusive to R410A
Enter the refrigerate name for identification
R22 (Existing article)
R22 (Existing article)
(7) Screwdriver (+, –)
(8) Spanner or Monkey wrench
(9) Hole core drill
(10)Hexagon wrench (Opposite side 4mm)
(11)Tape measure
(12)Metal saw
(3) Insulation resistance tester
(4) Electroscope
22
Proper use of tools/parts