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Climatemaster aux/emergency question

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so initially 10 years ago, the climatemaster tranquility TE 30 was installed with a heat exchanger connected to a weil mclain boiler as a zone with a taco sr506-exp-4 switching relay. The thermostat used was a 11f86-275 thermostat as the communicating thermostat came thru damaged. After 10 year, i needed to install the atc32u03 communicating thermostat due to a fault. Now I cant' seem to get the past wiring to perform regardless of various attempts. Does anyone know what procedure i need to follow.