Heatcraft Refrigeration 5521R Thermostat 328140-751 this valve provides instantaneous response

this valve provides instantaneous response to discharge air temperature changes

on the low side

it provides the structural stability required to facilitate uniform heat distribution across the plenum

Versatile Media Compatibility: Rated for temperatures up to 250°F and high glycol concentrations

Heatcraft Refrigeration 5521R Thermostat 328140-751 this valve provides instantaneous responseThe Heatcraft Refrigeration 5521R Thermostat is a high reliability 2 wire thermostat engineered specifically for the rigorous demands of commercial refrigeration and industrial HVAC systems. Designed as a direct replacement component for Heatcraft refrigeration systems, including brands like Bohn, Larkin, and Climate Control, this mechanical control provides precise temperature regulation across walk in coolers and freezers. Its robust construction