Refrigerant Guides

Per-refrigerant guides — R-410A, R-22, R-32, R-454B and more: pressures, oils, glide, safety class and handling.

6 guides

• R-134a Field Guide
  A single-refrigerant field guide to R-134a — where it shows up in HVAC/R (chillers, medium-temp refrigeration, automotive AC), its low-pressure single-component behavior, oil choices (POE in stationary, PAG in auto), A1 safety class, and phasedown status.
• R-22 Field Guide — Phaseout and Retrofit Reality
  A single-refrigerant field guide to R-22 — its status after the production phaseout, why it's scarce and expensive, its mineral-oil A1 characteristics, and the honest reality of 'drop-in' retrofit refrigerants versus just replacing the system.
• R-32 Field Guide
  A single-refrigerant field guide to R-32 — a single-component A2L replacing R-410A in new equipment (especially ductless). Its zero-glide behavior, slightly-higher-than-410A pressures, POE oil, A2L flammability handling, and where you'll see it.
• R-407C and R-404A Field Guide
  A combined field guide to two zeotropic HFC blends — R-407C (an R-22-pressure-alike often used in AC and R-22 retrofits) and R-404A (a low-temperature commercial refrigeration workhorse). Their glide, POE oil, A1 class, and why glide changes how you charge and read them.
• R-410A Field Guide
  A single-refrigerant field guide to R-410A — where it's used, its high-pressure operating characteristics, POE oil, A1 safety class, and the handling habits it demands. How to read its P-T chart rather than memorize it.
• R-454B Field Guide (A2L)
  A single-refrigerant field guide to R-454B — a low-GWP A2L blend replacing R-410A in new residential and light-commercial equipment. Its near-410A pressures, small glide, POE oil, A2L flammability handling, and how it differs from R-32.

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