Toshiba RAS-M07G3DV-E Service Manual page 16

4. Tools
Tools exclusive for R32/R410A (The following tools for R32/R410A are required.)
Installation/service tools
No
Tools / Equipment
1 Flare tool
Copper pipe gauge
2 for adjusting
projection margin
3 Torque wrench
4 Gauge manifold
5 Charge hose
6 Vacuum pump
Vacuum pump
7
adapter
Electronic balance
8 for refrigerant
charging
9 Leakage detector
10 Refrigerant cylinder
Refrigerant
11
recovery cylinder
Refrigerant
12
recovery device
Note 1 When flaring is carried out for R32/R410A using the conventional flare tools, adjustment of projection margin
is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.
Note 2 When saturation temperature is described, the gauge manifold differs for R410A and R32.
If saturation temperature reading is required, special tools exclusive for R32 are required.
Note 3 Since R32 has a slight possibility of burning, be sure to use the tools corresponding to R32.
Note 4 Like R410, a Vacuum pump adapter needs installing to prevent a Vacuum pump oil (mineral oil) from flowing
backward into the Charge hose. Mixing of the Vacuum pump oil into R32 refrigerant may cause a trouble such
as generation of sludge, clogging of capillary, etc.
Be sure to use those tools after confirming they correspond to each refrigerant.
Note 5
Note 6 For a refrigerant cylinder exclusive for R32, the paint color (or label color) of the cylinder is set to the specified
color (light blue) together with the indication of the refrigerant name.
Note 7 Although the container specification is the same as R410A, use a recovering container exclusive for R32 to
avoid mixing with other refrigerants.
Be careful for miss-charging of the refrigerant during work. Miss-charging of the refrigerant type may cause
Note 8
not only damage of the equipments but also a fire etc.
specification
Clutch type Pipe flaring
Flaring by
— conventional
flare tool
Tightening of
—
flare nut
Port size 1/2"-
Evacuating,
20UNF (5/16"
refrigerant
Flare)
charge, run
check, etc.
High-voltage
— Vacuum drying
— Vacuum drying
For 10 kg or Refrigerant
20 kg cylinder charge
Gas leakage
—
check
Refrigerant
—
charge
Refrigerant
Exclusive for
recovery
R32
container
Refrigerant
— recovery
device
: R32/R410A tools available
: Partly unavailable,
Applicability to R32/
Use R410A air conditioner or
not
Note 2
Note 3
1/2"-20UNF(5/16" Flare)
Note 4
1/2"-20UNF(5/16" Flare)
Note 5
Note 6
Note 7
Note 8
– 15 –
: R32/R410A tools unavailable
Applicability to R22 air
conditioner or not
—
Connection diameter
1/4"
Connection diameter
1/4"
Note 5
Connection diameter
1/4"