Description

The Heatcraft 4267W Adjustable Defrost Control and Fan Delay Switch is a refrigeration control component designed to support defrost termination and evaporator fan-delay operation in compatible Heatcraft unit coolers. The adjustable control helps coordinate the transition from defrost back to normal refrigeration operation, allowing the evaporator coil to reach appropriate operating conditions before fan operation resumes.

Standard Features:

Combined defrost control and fan-delay functionality
Adjustable control configuration
Helps terminate defrost operation under appropriate system conditions
Delays evaporator fan operation following defrost
Helps prevent warm or moisture-laden air from circulating immediately after defrost
Supports effective frost management and airflow control
Designed for compatible Heatcraft commercial refrigeration equipment

Application and Service Features:

Suitable for cooler, freezer, and unit cooler applications
Helps restore proper defrost termination and fan-delay operation
Adjustment settings should match the refrigeration application
Wiring and mounting configuration should be verified before installation
System operation should be tested through a complete defrost cycle after replacement
Installation should be completed by a qualified refrigeration technician