Heatcraft Refrigeration 5521R Thermostat 321894-708 Common Questions Is the PAN0919

Common Questions Is the PAN0919 compatible with both horizontal and vertical configurations

facilitating HVAC system integration

the internal spring rates and plunger dimensions are unique to the normally open configuration of the 540RA line

Key Benefits for Technicians: Precision Filtration: Captures microscopic debris to protect critical compressor components from scoring and premature failure

35" WC trip point for accurate negative pressure sensing in residential and commercial units

Heatcraft Refrigeration 5521R Thermostat 321894-708 Common Questions Is the PAN0919The 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