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The Honeywell TP971A2191 is a pneumatic day/night thermostat designed specifically for use in two-pipe, direct acting, single temperature heating and air conditioning systems. It offers reliable performance with a scale range of 60 to 90 degrees Fahrenheit during the day and 50 to 75 degrees Fahrenheit at night.
This thermostat's functionality allows for seamless transition from day to night settings, ensuring optimal comfort and energy efficiency. Its pneumatic nature allows for high reliability and low maintenance.
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