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The Pro1 IAQ T621 is a non-programmable thermostat designed for efficient temperature control. It operates within a control range of forty-five to ninety degrees Fahrenheit. The T621 features terminal designations including R, C, Y, W2, E, G, B, and O, allowing flexibility for different systems.
This thermostat is suitable for various HVAC applications, capable of handling up to two stages of heat and one stage of cooling. It also includes a humidity rating of ninety percent non-condensing, ensuring reliability in different environments.
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