Kolpak A421 Manuel D'installation, De Fonctionnement Et D'entretien page 22

• The timer starts the defrost cycle automatically at the predetermined times.
• A setting of two to four defrost cycles per day is typical. For heavier frost loads, additional cycles may be required.
When the defrost cycle begins:
• The compressor will stop but the evaporator fan(s) will continue to run.
• Air is pulled across the evaporator coil without refrigerant running through the system. The coil temperature to
increases above 32°F/0°C melting the frost and ice.
• The system remains in defrost through the duration programmed on the timer. Once the duration is complete,
the compressor activates and refrigerant starts cycling through the system.
• The system operates in the refrigeration cycle until the next defrost cycle is initiated by the timer.
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