Johnson Controls Reverse Acting Dual Temperature Horizontal Pneumatic Thermostat w/o Indexing Switch

The T-4506 Thermostat is a high volume output, dual temperature, dual dial thermostat. The T-4506 provides individual day and night, or two set point temperature control. Features: available in Direct Acting (DIR) and Reverse Acting (REV) models includes Fahrenheit dial direct acting available in vertical or horizontal model reverse acting available in horizontal model available with optional manual indexing switch that permits you to restore the day temperature of the individual thermostat without affecting the other system thermostats Indexing switch can be unlatched manually or will automatically reset with the day cycle