OEM Reliability: Genuine Nordyne replacement part ensures exact structural fitment and technical compliance

use a Maxitrol vent protector to prevent moisture

This assembly features high-grade copper construction with factory-brazed connections to minimize vibration fatigue and prevent leaks under high-pressure conditions

The enclosing tube houses the solenoid plunger and provides the hermetic seal required for the valve to operate under pressure without venting refrigerant to the atmosphere

Energy Efficiency: Cogged design reduces internal friction losses

Heatcraft Refrigeration 21340101 Defrost Timer Refrigerant OEM Reliability: Genuine Nordyne replacementThe Heatcraft 21340101 Defrost Timer, also identified as the DTSX240, is a heavy duty mechanical control engineered for demanding commercial refrigeration and freezer applications. This 230V defrost timer features a robust 40A capacity, making it a standard OEM replacement part for Heatcraft, Bohn, and Larkin walk in units. Built for high amperage loads, it provides precise timing for electric defrost cycles, preventing evaporator ice accumulation