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The Johnson Controls A28AA-4C is a two-stage temperature control. It operates within a temperature range of thirty to one hundred ten degrees Fahrenheit. This model features a fixed differential of three and a half degrees Fahrenheit across stages, making it suitable for various HVAC applications.
This temperature control is designed to maintain consistent temperature levels in HVAC systems.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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