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Please note the location of connector P66 when determining the boards version as seen in picture above. Version 1 boards only work with the in.Therm heaters. Version 2 boards work with in.Therm heaters or any pressure or flow switches without changes to the board.
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Horizon offers you a 90 day window from the date of your invoice to return purchases for any reason with no restocking fee! And, we honor the manufacturer’s warranty from the date of your invoice, not from the date of manufacture! For more details, click one of the following: Return Policy, Warranty Policy.
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