Dustproof steel case with top and bottom knockouts.
Temperature dial graduated in Fahrenheit and Celsius and can be adjusted through cover.
High electrical ratings allow operation of most equipment without use of relays or motor starters.
Model 1609-90 for use in zoning systems where all thermostats control a common compressor and a separate solenoid refrigerant valve in each zone. 16A60 manual reset freeze protection.
