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Printable HVAC charts

Field references that fit on one page. Look them up on your phone or print them for the truck.

Pressure-temperature charts

A1

R-410A PT chart

°F and psig with a quick lookup.

A2L

R-454B PT chart

Bubble and dew columns, °F and psig with a quick lookup.

A2L

R-32 PT chart

°F and psig with a quick lookup.

A1

R-22 PT chart

°F and psig with a quick lookup.

Wiring

24V

Thermostat wiring diagrams

Furnace + AC, heat pump with aux heat, and 2-wire heat only, plus a terminal key.