Toshiba MCY-MUG0401HSW-E Service Manual page 17

4. Tools
Installation/service tools
No.
Tools / Equipment
1 Flare tool
Copper pipe gauge for
2 adjusting projection
margin
3 Torque wrench
4 Gauge manifold
5 Charge hose
6 Vacuum pump
Vacuum pump
7
adapter
Electronic balance for
8
refrigerant charging
9 Leakage detector
10 Refrigerant cylinder
Refrigerant recovery
11
cylinder
Refrigerant recovery
12
device
Note 1 When flaring is carried out for R410A or R32 using the conventional flare tools, adjustment of projection
margin is necessary. For this adjustment, a copper pipe gauge, etc. is 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 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 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.
Note 5 Be sure to use those tools after confirming they correspond to each refrigerant.
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 that of R410A, use a recovering container exclusive
for R32 to avoid mixing with other refrigerants.
Note 8 Be careful for miss charging of the refrigerant during work. Miss charging of the refrigerant type may cause
not only damage of the equipment but also a fire etc.
IIn addition to the above exclusive tools, the following equipment is necessary as the general tools.
(1) Pipe cutter
(2) Reamer
(3) Pipe bender
(4) Level vial
(5) Screwdriver (+, –)
Also prepare the following equipments for other installation method and run check.
(1) Clamp meter
(2) Thermometer
Use
specification
Clutch type Pipe flaring
Flaring by
—
conventional flare tool
— Tightening of flare nut
Port size Evacuating,
1/2"-20UNF refrigerant charge, run
(5/16" Flare) check, etc.
High-voltage
—
Vacuum drying
— Vacuum drying
For 10 kg or
20 kg Refrigerant charge
cylinder
—
Gas leakage check
— Refrigerant charge
Exclusive for Refrigerant recovery
R32 container
Refrigerant recovery
—
device
General tools
: R410A tools available
: Partly unavailable,
Applicability to R32 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
(6) Spanner or Adjustable wrench
(7) Hole core drill
(8) Tape measure
(9) Metal saw
(3) Insulation resistance tester
(4) Electroscope
16
: R410A tools unavailable
Applicability to R22 air
conditioner or not

—
Connection diameter
1/4"
Connection diameter
1/4"


Note 5
Connection diameter
1/4"