Definition: The target temperature programmed into a refrigeration system’s controller. The system cycles on/off or modulates to maintain actual temperature near the setpoint.
Typical Control Range: ±1°C to ±3°C around setpoint (varies by system quality)
Why It Matters::
- Proper setpoint selection balances product safety and energy efficiency
- Too low: Wasted energy, potential product freezing (for chilled goods)
- Too high: Product quality/safety risk, non-compliance
R638 Compliance: For products requiring ≤ +5°C, setpoint typically set at +2°C to +3°C to account for temperature variation and door openings.
Related Terms: Temperature Control, Thermostat, Controller, Dead Band