The SOX (NBR) material is specifically chosen for its superior oil resistance and resilience
It is compatible with conventional single-stage systems and heat pumps that do not require auxiliary heat
eliminating the risk of incorrect drop-out voltages associated with universal relays
providing more precise refrigerant metering than internally equalized models
the Honeywell auxiliary switch ensures reliable switching in demanding HVAC economizer systems
Johnson Controls T46JEA-1 Thermostat Refrigerant The SOX (NBR) material isJohnson Controls T46JEA 1 Fan Coil Thermostat, Line Voltage, Cooling Applications, On Off System Switching, Lo Med High Fan Switch, 40 to 90 Degree Thermostat Range, 50 to 90 Degree Thermometer Range, Almond Color, Gold Faceplate T46JEA 1 is identical to T46JEA 1C