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As a veteran-grade HVAC expansion valve
the 61-40533-03 is specifically calibrated for R-22 refrigerant systems and should not be used in high-pressure R-410A applications
the extra length can be coiled safely away from the flame
Can I use this for high-side refrigeration protection
a stuck-closed Trane VAL8799 TXV is likely restricting flow
Functional Devices RIBMNLB-4 Board 320074-702 As a veteran-grade HVAC expansionThe Functional Devices RIBMNLB 4 logic board is a field proven AHU fan safety alarm circuit designed to aggregate multiple shutdown signals into a single supervisory point. This 4 input logic module eliminates the need for complex, hand wired relay interlocking by using high density 2. 75 inch track mount housing. Optimized for 24Vac dc power input, the board accepts up to four normally closed (N C) inputstypically from smoke detectors, freeze stats,