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.

Tools exclusive for R410A (The following tools for R410A are required.)

Tools whose specifications are changed for R410A and their interchangeability

 

 

 

 

R410A

Conventional air

 

 

 

air conditioner installation

conditioner installation

No.

Used tool

Usage

 

 

 

 

Existence of

 

Whether conven-

Whether new equipment

 

 

 

 

 

 

 

new equipment

 

tional equipment can

can be used with

 

 

 

for R410A

 

be used

conventional refrigerant

 

 

 

 

 

 

 

Q

Flare tool

Pipe flaring

Yes

 

*(Note 1)

Yes

 

 

 

 

 

 

 

 

Copper pipe gauge for

Flaring by conventional

 

 

 

 

R

adjusting projection

Yes

 

*(Note 1)

*(Note 1)

flare tool

 

 

margin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

Torque wrench

Connection of flare nut

Yes

 

No

No

 

 

 

 

 

 

 

T

Gauge manifold

Evacuating, refrigerant

Yes

 

No

No

 

 

 

 

 

charge, run check, etc.

 

U

Charge hose

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V

Vacuum pump adapter

Vacuum evacuating

Yes

 

No

Yes

 

 

 

 

 

 

 

W

Electronic balance for

Refrigerant charge

Yes

 

Yes

Yes

refrigerant charging

 

 

 

 

 

 

 

 

X

Refrigerant cylinder

Refrigerant charge

Yes

 

No

No

 

 

 

 

 

 

 

Y

Leakage detector

Gas leakage check

Yes

 

No

Yes

 

 

 

 

 

 

 

Y

Charging cylinder

Refrigerant charge

(Note 2)

 

No

No

 

 

 

 

 

 

 

(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.

(Note 2) Charging cylinder for R410A is being currently developed.

General tools (Conventional tools can be used.)

In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as the general tools.

(1)

Vacuum pump

(7)

Screwdriver (+, –)

 

Use vacuum pump by

(8)

Spanner or Monkey wrench

 

attaching vacuum pump adapter.

(9)

Hole core drill

(2)

Torque wrench

(10)

Hexagon wrench (Opposite side 4mm)

(3)

Pipe cutter

(11)

Tape measure

(4)

Reamer

(12)

Metal saw

 

 

(5)Pipe bender

(6)Level vial

Also prepare the following equipments for other installation method and run check.

(1)

Clamp meter

(3)

Insulation resistance tester

(2)

Thermometer

(4)

Electroscope

6

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Toshiba MMU-AP0151MH Tools, General tools Conventional tools can be used, Used tool Usage, Conditioner installation
Page 5 Page 7

MMU-AP0181MH, MMU-AP0071MH, MMU-AP0091MH, MMU-AP0151MH, MMU-AP0121MH specifications

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