Converter Board for R59 Thermostat Replacement
The Converter Board connects the Universal Fan Coil Thermostat to the R15 Control Board in the existing fan coil unit. There are 7 wires connecting the thermostat to the Converter Board, and 4 wires connecting the Converter Board to the R15 Control Board. See diagram and reference file attached.
This Converter board can also be used with any 7 Wire Smart Thermostat

