29 PB
INSTALLATION OF THE OUTDOOR UNIT
Tools
Figure C.1 (Tools)
Verify with tool manufacturers that all tools used during servicing of the refrigerant are non-sparking and can be used with A2L Refrigerants.
No halide torches for leak testing.
Refrigerant monitors or detectors must be used to detect refrigerant in the work area.
• R-454B A2L Refrigerant Recovery System.
• Vacuum Pump rated for A2L refrigerant (capable of 300 microns or less vacuum.)
• Nitrogen bottle with purging and pressurizing capabilities up to 550 psi.
• Non-Sparking (Not Halide)Electronic Leak Detector rated for detecting A2L refrigerant.
• Digital refrigerant scale Refrigeration Gauges rated for A2L Refrigerants with temp scales for R-454B refrigerant.
• Gauge Manifold (Right handed threads).
• A2L compatible Vacuum Gauge capable of 300 microns or less.
• Nitrogen regulator for purging and testing, rated to 800 psi. (Capable of low psi flow)
• Pipe tubing cutter.
• Refrigerant recovery cylinder. (Flammable A2L label)
• Ventilation fan.
• Class ABC fire extinguisher.
• Purge hose fittings
• Flaring tool
Recovery Machine
Vaccum Pump
Nitrogen
ABC Fire Extinguisher
Guage Manifold
Nitrogen Regulator
Vacuum Guage
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