Mitsubishi Electric MXZ-SM72TAM-U1 Service Manual page 6

Nominal dimensions (in)
■ Tools for R410A (The following table shows whether conventional tools can be used or not.)
Tools and materials
Gauge manifold
Charge hose
Gas leak detector
Refrigerant recovery
equipment
Refrigerant cylinder
Applied oil
Safety charger
Charge valve
Vacuum pump
Flare tool*
Bender
Pipe cutter*
Welder and nitrogen gas
cylinder
Refrigerant charging scale
Vacuum gauge or thermistor
vacuum gauge and vacuum
valve
Charging cylinder
: Prepare a new tool. (Use the new tool as the tool exclusive for R410A.)
: Tools for other refrigerants can be used under certain conditions.
: Tools for other refrigerants can be used.
* Follow the instructions below to prevent abrasive components contained in sandpaper and cutting tools from entering
the refrigerant circuit because those components can cause failures of the compressor and valves.
• To deburr pipes, use a reamer or other deburring tools, not sandpaper.
• To cut pipes, use a pipe cutter, not a grinder or other tools that use abrasive materials.
• When cutting or deburring pipes, do not allow cutting chips or other foreign matters to enter the pipes.
• If cutting chips or other foreign matters enter pipes, wipe them off the inside of the pipes.
OCH800A_6
Outside diameter (mm)
1/4 6.35
3/8 9.52
1/2 12.70
5/8 15.88
3/4 19.05
Use
Air purge, refrigerant charge
and operation check
Gas leak check
Refrigerant recovery
Refrigerant charge
Apply to flared section
Prevent compressor
malfunction when charging
refrigerant by spraying liquid
refrigerant
Prevent gas from blowing out
when detaching charge hose
Vacuum drying and air purge Tools for other refrigerants
Flaring work of piping
Bend the pipes
Cut the pipes
Weld the pipes
Refrigerant charge
Check the degree of
vacuum. (Vacuum valve
prevents back flow of oil and
refrigerant to thermistor
vacuum gauge)
Refrigerant charge
Dimension B ( 0 ) (in [mm])
-0.4
R410A R22
43/64 [17.0] 43/64 [17.0]
7/8 [22.0] 7/8 [22.0]
1-3/64 [26.0] 15/16 [24.0]
1-9/64 [29.0] 1-1/16 [27.0]
– 1-27/64 [36.0]
R410A tools Can R22 tools be used ?
Tool exclusive for R410A
Tool exclusive for R410A
Tool for HFC refrigerant
Tool exclusive for R410A
Tool exclusive for R410A
Ester oil, ether oil and
alkylbenzene oil (minimum
amount)
Tool exclusive for R410A
Tool exclusive for R410A
can be used if equipped with
adopter for reverse flow
check
Tools for other refrigerants
can be used by adjusting
flaring dimension
Tools for other refrigerants
can be used
Tools for other refrigerants
can be used
Tools for other refrigerants
can be used
Tools for other refrigerants
can be used
Tools for other refrigerants
can be used
Tool exclusive for R410A
Can R407C tools be used ?
Ester oil, ether oil:
Alkylbenzene oil: minimum
( Usable if equipped with ( Usable if equipped with
adopter for reverse flow) adopter for reverse flow)
( Usable by adjusting ( Usable by adjusting
flaring dimension) flaring dimension)
amount
–