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6.1. Necessary Tools and Materials
Prepare the following tools and materials necessary for installing and servicing the unit.
Necessary tools for use with R410A/R32(Adaptability of tools that are for use with R22 and R407C).
1. To be used exclusively with R410A/R32 ( Not to be used if used with R22 or R407C )
Tools/Materials
Use
Notes
Gauge Manifol
Evacuating,refrigerant
charging
5.09MPa on the High-pressure side.
Charging Hose
Evacuating, refrigerant
charging
Hose diameter larger than the concentional ones.
Refrigerant Recovery
Equipment
Refrigerant recovery
Refrigerant Cylinder
Refrigerant charging
Write down the refrigerant type. Pink in color at the
top of the cylinder.
Refrigerant Cylinder Charging
Port
Refrigerant charging
Hose diameter larger than the conventional ones.
Flare Nut
Connecting the unit to piping
Use Type-2 Flare nuts.
2. Tools and materials that may be used with R410/R32 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/R32
Tools/Materials
Use
Notes
Vacuum Pump with a Check
Valve
Vacuum drying
Bender
Bending pipes
Torque Wrench
Tightening flare nut
Only Ø12.70 (1/2'') and Ø15.88(5/8'') have a larger
flare machining dimension
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/R32
Tools/Materials
Use
Notes
Charging Cylinder
Refrigerant Charging
Must not be used with R410-type units.
Tools for R410A/R32 must be handled with special care, and keep moisture and dust from entering the cycle.
