2 . Tools and materials that may be used with R410 with some restrictions
Tools/Materials
Use
Notes
Gas leak detector
Detection of gas leaks
The ones for HFC type refrigerant may be used.
Vacuum Pump
Vacuum drying
May be used if a reverse flow check adaptor is attached.
Flare Tool
Flare machining of piping
Chages have been made in the flare machining
dimension.Refer to the next page.
Refrigerant Recovery
Equipment
Recovery of refrigerant
May be used if designed for use with R410A.
3 . Tools and materials that are used with R22 or R407C that can also be used with R410A
Tools/Materials
Use
Notes
Vacuum Pump with a
Check Valve
Vacuum drying
Bender
Bending pipes
Only #2.70 (1/2”) and # 15.88(5/8”) have a larger flare
machining dimension.
Torque Wrench
Tightening flare nuts
Pipe Cutter
Cutting pipes
Welder and Nitrogen
Cylinder
Welding pipes
Refrigerant Charging
Meter
Refrigerant charging
Vacuum Gauze
Checking vacuum degree
4 . Tool and materials that must not used with R410A
Tools/Materials
Use
Notes
Charging Cylinder
Refrigerant Charging
Must not be used with R410-type units.
Tools for R410A must be handled with special care, and keep moisture and dust from entering the cycle .
Piping Materials
Types of Copper Pipes (Reference)
Maximum Operation Pressure
Applicable Refrigerants
3.4MPa
R22, R407C
4.15MPa
R410A
Use pipes that meet the local standards .
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