Danfoss 077b7002 B4 Service Thermostat Cold Control

Product Description

The DANFOSS 077b7002 is a mechanical cold control thermostat designed as a service replacement for refrigerators equipped with manual defrost systems. Classified as a B4 type thermostat, it regulates temperature through a capillary tube sensing element with a tube length of 1300 millimeters. On the warm side, the control cuts in at 32 degrees F and cuts out at 18.5 degrees F. On the cold side, cut-in is 10.4 degrees F and cut-out is -7.6 degrees F. This part is installed by refrigeration technicians and appliance service professionals during field service or bench repair of residential refrigeration equipment.

This thermostat is intended for use in refrigerators with manual defrost configurations. It serves as a direct service replacement, packaged as a service kit component. The capillary tube design allows the sensing bulb to be routed to the appropriate location within the refrigerator cabinet or evaporator compartment. Typical installations involve replacing a failed or out-of-calibration cold control that causes the refrigerator to run continuously, short-cycle, or fail to maintain proper cabinet temperature.

Key Features

• B4 type mechanical cold control for manual defrost refrigerators
• Warm cut-in at 32 degrees F and warm cut-out at 18.5 degrees F
• Cold cut-in at 10.4 degrees F and cold cut-out at -7.6 degrees F
• Capillary tube length of 1300 millimeters for flexible sensing element routing
• Packaged as a service kit for field or bench replacement use
• Mechanical control design with no electronic components to fail

Compatibility

Designed as an OEM-style service replacement cold control for manual defrost refrigerators. Consult the DANFOSS service documentation or the original equipment nameplate to confirm fitment before installation.

Installation Notes

Installation should be performed by a qualified appliance technician or refrigeration service professional. Disconnect power to the refrigerator at the outlet or circuit breaker before removing the old thermostat. Take care when routing and positioning the capillary tube to avoid kinking, which can damage the sensing element and cause erratic control behavior. Confirm all electrical connections are secure and the capillary tube is correctly positioned before restoring power.

Technical Specifications

• Type: B4
• Product Group: Mechanical Cold Controls
• Warm Cut-In: 32 degrees F
• Warm Cut-Out: 18.5 degrees F
• Cold Cut-In: 10.4 degrees F
• Cold Cut-Out: -7.6 degrees F
• Capillary Tube Length: 1300 millimeters
• Gross Weight: 0.309 pounds
• Net Weight: 0.265 pounds

Standard Information

• Brand: DANFOSS
• Manufacturer Part Number: 077b7002