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Field calculator

Superheat and
subcooling

Diagnose the refrigerant charge with the precision of the industry's standard technical tables. Pick the gas, enter your readings, and get the result instantly.

// How to use

  1. 1Pick the unit's refrigerant.
  2. 2Enter the line pressure and temperature, or use direct saturation if your gauge provides it.
  3. 3Read the result and compare it against the manufacturer's suggested range.

Reference values. P-T tables based on data published by manufacturers (Hudson Tech, Arkema). For a final diagnosis, always verify against the unit's nameplate and the manufacturer's manual.

Units
ClassA1
GWP2088
Glide0°C

Superheat

0.0 K
Enter the data
Low-side gauge
PSIG
Contact thermometer
°C

// Typical reference ranges

Typical superheat: 5–10 K in TXV systems; 8–20 K in fixed-orifice systems (varies with thermal load).

Do you log these diagnostics on every visit? With Lissi they stay attached to the equipment history.

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