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TH144 Professional Series™ thermostats use state-of-the-art adaptive controllers for maximum comfort and efficiency. Note: due to the complexity of installation, TH144 Series thermostats are designed for professional installation only; a 25% restocking fee applies for all non-defective returns.
TH144-P-2H2C Terminals: R, C, W1, W2, Y1, Y2, G
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