Справочник Пользователя для Toshiba RAV-SM566KRT-TR

The service port diameter of packed valve of the outdoor unit in the air-water heat pump using R410A is

changed to prevent mixing of other refrigerant.
To reinforce the pressure-resisting strength, flare processing dimensions and opposite side dimension of flare

nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.
The used refrigerating oil is changed, and mixing 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 whose specifications are changed for R410A and their interchangeability

(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.

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 attaching vacuum pump adapter.

8) Spanner or Monkey wrench

2) Torque wrench

9) Hole core drill (Ø65)

3) Pipe cutter

10) Hexagon wrench (Opposite side 4mm)

4) Reamer

11) Tape measure

5) Pipe bender

12) Metal saw

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

1

2

3

4

5

6

7

8

9

10

Flare tool

Copper pipe gauge for

adjusting projection margin

Torque wrench

Gauge manifold

Charge hose

Vacuum pump adapter

Electronic balance for

refrigerant charging

Refrigerant cylinder

Leakage detector

Charging cylinder

Pipe flaring

Flaring by

conventional flare tool

Connection of flare nut

Evacuating, refrigerant

charge, run check, etc.

Vacuum evacuating

Refrigerant charge

Refrigerant charge

Gas leakage check

Refrigerant charge

Existence of

Whether conventional

new equipment

equipment can be

for R410A

used

Yes

∗ (Note 1)

Yes

∗ (Note 1)

Yes

×

Yes

×

Yes

×

Yes

×

Yes

×

Yes

×

×

Whether new equipment

can be used with

conventional refrigerant

¡

∗ (Note 1)

×
×

¡
¡

×

¡

×

FILE NO. SVM-12004

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