I am relatively new to the field and i had a question that will come probably realatively easy to you guys. i have installed the CO2 already in the space and the wire is at the economizer module area. the economizer is a Honeywell W7212 and the CO is a a Honeywell C7232a. Its pretty self explanatory where its getting the 24volts, but the question is there is 4 wires left over. analog output common,analog output signal,relay output normally open and finally relay output common. Thank you for any help offered in advance.