Supco sc803 Defrost Timer

Product Description

The SUPCO sc803 is a defrost timer designed for use in refrigeration systems where timed defrost cycles are required to prevent ice buildup on evaporator coils. The timer controls the initiation and termination of defrost cycles, allowing the system to maintain efficient heat transfer and consistent temperatures. Licensed refrigeration and HVAC technicians install this component as part of routine maintenance or system repair when the original timer fails or causes erratic defrost behavior.

The sc803 is suited for residential and light commercial refrigeration applications where a mechanical or electromechanical defrost timer is the specified control method. Typical installations include reach-in coolers, upright freezers, walk-in units, and domestic refrigerators that rely on a timed defrost sequence rather than an adaptive or demand-based defrost control.

Key Features

• Controls timed defrost cycles to prevent evaporator coil icing
• Designed as a direct replacement for failed or faulty defrost timers
• Compact form factor suitable for standard timer mounting locations
• Compatible with refrigeration systems requiring electromechanical timed defrost control

Compatibility

Designed as an OEM-style replacement defrost timer for residential and light commercial refrigeration systems that use a timed defrost control strategy.

Installation Notes

Installation should be performed by a qualified HVAC or refrigeration technician. Disconnect power to the refrigeration unit before removing the existing timer or handling any wiring. Verify the defrost cycle timing settings match system requirements before restoring power. Refer to the equipment manufacturer's wiring diagram when reconnecting timer terminals.

Technical Specifications

• Brand: SUPCO
• Manufacturer Part Number: sc803

Standard Information

• Brand: SUPCO
• Manufacturer Part Number: sc803