Johnson Controls T-4600-5 Thermostat

Energy Manager Heating-Cooling Low Volume Output Thermostat, Direct and Reverse Acting, Fahrenheit, 55 to 85 Degree Dial Range, 45 SCIM Flow Capacity with .007" Restrictor, 25 SCIM Flow Capacity with .005" Restrictor, 50 SCIM Air Consumption, 13 to 25 Psig Supply Pressure