[ I Read Before Servicing ]
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HWE10060 GB
[2] Necessary Tools and Materials
Prepare the following tools and materials necessary for servicing the unit.
Tools for use with R407C (Adaptability of tools that are for use with R22 or R410A)
1. To be used exclusively with R407C (not to be used if used with R22 or R410A)
2. Tools and materials that may be used with R407C with some restrictions
3. Tools and materials that are used with R22 or R410A that may also be used with R407C
4. Tools and materials that must not be used with R407C
Tools for R407C must be handled with special care to keep moisture and dust from infiltrating the cycle.
Tools/Materials Use Notes
Gauge Manifold Evacuation and refrigerant charging Higher than 4.82MPa on the high-
pressure side
Charging Hose Evacuation and refrigerant charging
Refrigerant Recovery Cylinder Refrigerant recovery
Refrigerant Cylinder Refrigerant charging The refrigerant type is indicated. The
cylinder is Gray
Charging Port on the Refrigerant Cylinder Refrigerant charging
Tools/Materials Use Notes
Gas Leak Detector Gas leak detection The ones for use with HFC refrigerant
may be used.
Vacuum Pump Vacuum drying May be used if a check valve adapter
is attached.
Refrigerant Recovery Equipment Refrigerant recovery May be used if compatible with
R407C.
Tools/Materials Use Notes
Vacuum Pump with a Check Valve Vacuum drying
Bender Bending pipes
Torque Wrench Tightening water pipes
Pipe Cutter Cutting pipes
Welder and Nitrogen Cylinder Welding pipes
Refrigerant Charging Meter Refrigerant charging
Vacuum Gauge Vacuum level check
Tools/Materials Use Notes
Charging Cylinder Refrigerant charging Prohibited to use
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