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RefCalc — Coil Airflow
RefCalc step 3 — Coil Airflow. Coil path can run with or without gauges.
- Enter return DB (and optional WB).
- Evap: Air or Water medium; Coil TD or Discharge mode. Air: Evap TD = Ret DB − Evap discharge.
- Cond: Air or Water; Coil TD or Discharge. Air: Cond TD = Cond discharge − ODB.
- Press ↵ on the numeric pad to reconcile related fields in a group (anchor field kept).
- Formulas overview also on Refrigerant diagnostic formulas.
Disclaimer: Field guide for technicians — not a substitute for nameplate data or local Code.