Tool Preparation - Mitsubishi Electric PURY-M200YNW-A1 Service Handbook

[1-1 Preparation for Piping Work ]
1-1-2

Tool Preparation

Prepare the following tools and materials necessary for installing and servicing the unit.
Tools for use with R32 (Adaptability of tools that are for use with R410A, R22, or R407C)
1. To be used exclusively with R32 (not to be used if used with R410A, R22, or R407C)
Tools/Materials
Gauge Manifold
Charging Hose
Refrigerant Recovery Cylinder
Refrigerant Cylinder
Charging Port on the Refrigerant Cylinder Refrigerant charging
2. Tools and materials that may be used with R32 with some restrictions
Tools/Materials
Gas Leak Detector
Vacuum Pump
Refrigerant Recovery Equipment
3. Tools and materials that are used with R22, R407C, or R410A that may also be used with R32
Tools/Materials
Vacuum Pump with a Check Valve
Bender
Torque Wrench
Pipe Cutter
Welder and Nitrogen Cylinder
Refrigerant Charging Meter
Vacuum Gauge
4. Tools and materials that must not be used with R32
Tools/Materials
Charging Cylinder
Tools containing abrasive materials
Tools for R32 must be handled with special care to keep moisture and dust from infiltrating the cycle.
2 -
chapter 1
Use
Evacuation and refrigerant charging
Evacuation and refrigerant charging
Refrigerant recovery
Refrigerant charging
Use
Gas leak detection
Vacuum drying
Refrigerant recovery
Use
Vacuum drying
Bending pipes
Tightening flare nuts
Cutting pipes
Welding pipes
Refrigerant charging
Vacuum level check
Use
Refrigerant charging
Pipe cutting, cut edge treatment
Notes
Higher than 5.09MPa[738psi] on the
high-pressure side
The hose diameter is larger than the
conventional model.
The refrigerant type is indicated. The
cylinder is light blue.
The charge port diameter is larger
than that of the current port.
Notes
The ones for use with HFC refrigerant
may be used.
May be used if a check valve adapter
is attached.
May be used if compatible with R32.
Notes
Only the flare processing dimensions
for pipes that have a diameter of
ø12.7 (1/2") and ø15.88 (5/8") have
been changed.
Notes
Prohibited to use
Prohibited to use
BS_01_L