Tools, Required tools | Toshiba RAS-13UAV-E2, RAS-13UKV-E2 manual

FILE NO. SVM-03008

2-3. Tools

2-3-1. Required tools

The service port diameter of packed valve of the outdoor unit in the air conditioner 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 ∅ 12.70 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 exclusive for R410A (The following tools for R410A are required.)

Tools whose specifications are changed for R410A and their interchangeability

			R410A air conditioner		Conventional air
			installation		conditioner installation
No.	Used tool	Usage
No.	Used tool	Usage	Existence of	Whether	Whether new equipment
			new equipment	conventional	can be used with
			for R410A	equipment can	conventional refrigerant
				be used

1	Flare tool	Pipe flaring	Yes	*(Note 1)

2	Copper pipe gauge	Flaring by
	for adjusting projection	conventional flare	Yes	*(Note 1)	*(Note 1)
	margin	tool

3	Torque wrench	Connection of	Yes
	(For ∅ 12.70)	flare nut	Yes
	(For ∅ 12.70)	flare nut

4	Gauge manifold	Evacuating,
		refrigerant charge,	Yes
5	Charge hose	refrigerant charge,	Yes
5	Charge hose	run check, etc.

6	Vacuum pump adapter	Vacuum evacuating	Yes

7	Electronic balance for	Refrigerant charge	Yes
7	refrigerant charging	Refrigerant charge	Yes
	refrigerant charging

8	Refrigerant cylinder	Refrigerant charge	Yes

9	Leakage detector	Gas leakage check	Yes

!	Charging cylinder	Refrigerant charge	(Note 2)

(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.					Hole core drill (∅ 65)
(1)	Vacuum pump	(4)	Reamer	(9)	Hole core drill (∅ 65)
	Use vacuum pump by	(5)	Pipe bender	(10)	Hexagon wrench
	attaching vacuum pump adapter.	(6)	Level vial		(Opposite side 5 mm)
(2)	Torque wrench (For ∅ 6.35)	(7)	Screwdriver (+, –)	(11)	Tape measure
(3)	Pipe cutter	(8)	Spanner of Monkey wrench	(12)	Metal saw
Also prepare the following equipments for other installation method and run check.
(1)	Clamp meter	(3)	Insulation resistance tester
(2)	Thermometer	(4)	Electroscope

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RAS-13UAV-E2, RAS-13UKV-E2 specifications

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