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VTech Talk: Vacuum As Leak Test                                                                Discussed is utilizing vacuum as a leak test in addition to indicating system dryness and suitability for refrigerant. What the vacuum curve is and what it means for the manufacturing process.     

 

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Pre-evacuation:

Pre-Evacuation Best Practices and Pump Quantification (PDF - 129 KB)

Pumpdown Time and Pump Implementation (PDF - 212 KB)

Sizing Vacuum Pumps (PDF - 95.0 KB)

Understanding Pressure and Vacuum (PDF - 144 KB)

Leak Detection:

VTECH_leak_detection (PDF - 1.18 MB)

Background - Tracer Gas Leak Detection (PDF - 94.7 KB)

Diffusion (PDF - 80.3 KB)

Pressure Decay Leak Test Profiling (PDF - 20.9 KB)

Refrigerant Charging:

Ready for Hydrocarbon Refrigerants (PDF - 102 KB)

Refrigeration 101 (PDF - 154 KB)

Service Bulletins

VTech Tip #1 (PDF - 14 KB) Refrigerant Calibration 

Vapor Detection (PDF - 30 KB)