Danfoss 077B7002 Refrigerator Thermostat

The Danfoss 077B7002 Refrigerator Thermostat is a high-performance service thermostat designed specifically for refrigeration units utilizing a push-button defrost mechanism. Engineered as a universal service kit, this electromechanical control is a primary choice for technicians performing a refrigerator thermostat replacement on household and light commercial appliances. It features a 1300 mm (51.2 in) capillary tube to ensure accurate temperature sensing across the evaporator surface. With a cold cut-out of -22.0°F (-30.0°C) and a warm cut-in of 32.0°F (0.0°C), it maintains tight thermal differentials to protect the compressor from short-cycling. This Danfoss 077B7002 model includes a dedicated defrost terminal that engages when the manual button is depressed, ensuring reliable ice management in single-evaporator systems. Approved with CE certification, this 0.120 kg component offers a durable, mechanical refrigerator control solution that integrates seamlessly into existing wiring harnesses using standard spade terminals.

• Universal Service Kit: Designed for broad compatibility, making it the ideal refrigerator thermostat replacement for various makes and models.
• Precise Temperature Control: Wide regulating range from cold cut-out at -7.6°F to warm cut-in at 32.0°F for optimal food preservation.
• Integrated Push-Button Defrost: Includes a semi-automatic defrost function to simplify ice removal without fully powering down the unit.
• Extended Capillary Reach: The 1.3-meter capillary tube allows for flexible mounting in challenging cabinet configurations.
• Industrial-Grade Durability: Rated for high-cycle switching (NC main contacts) to handle standard inductive compressor loads.

How do I wire the Danfoss 077B7002 for push-button defrost?
This thermostat typically utilizes a 3-terminal or 4-terminal configuration where the main Normally Closed (NC) contacts break the compressor circuit. The defrost function is activated by the manual push-button, which holds the contact open until the evaporator reaches the warm defrost reset temperature of 42.8°F (6.0°C).

Can this thermostat be used in a freezer?
While the Danfoss 077B7002 is optimized for refrigerators with manual defrost, its cold cut-out capabilities reach -7.6°F. However, for dedicated low-temp freezers without push-button requirements, a specialized freezer service kit may provide a more appropriate temperature range.

What happens if the capillary tube is kinked during installation?
The capillary tube contains a precise gas charge; any kinks or breaks will result in a loss of pressure, causing the thermostat to fail in an open or closed position. Always de-coil the 1.3-meter lead carefully to maintain the integrity of the sensing bulb.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.