Good evening. I am new to the forum and have a question about some thermostat wiring. I have a typical programamble Breaburn thermostat, an Rheem air handler with A/C and a hot water hydronic coil. I have 2 wire coming from the TACO switch on the boiler to the thermostat and i have 5 wire coming from the air handler to the thermostat. I am not sure where the two wire gets connected in the thermostat?