Ritchie Engineering

Ritchie Engineering
Mary Jo Gentry

10950 Hampshire Avenue South
Bloomington, MN 55438


RitchieWith over 16 years of experience building automated A/C systems and over 68 years of experience building quality HVAC service tools, Ritchie Engineering knows what it takes to meet today’s tough service standards.

That’s why we designed the YELLOW JACKET™ Refrigerant Management System (RMS) 37840 for R-134a and 37860 for R-1234yf. Each provides full cycle recovery/recycle/ evacuate/recharge to bring the vehicle back to factory specifications.

The easy-to-use, portable, full color interface walks you quickly through each step for easy operation and fast service.

Not ready for R-1234yf? Purchase the 37840 for R-134a today, and we can update it to R-1234yf later with our optional (one-time-use) conversion kit.

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