I would like to replace my Maple Chase 960S thermostats but I am unsure of the correct replacement. There are two wires coming out (T1 and T2). Do I need these when connecting new thermostats? I have a 2 zone system (ZTE 2000 Model 2v 2 zone HVAC controller). Can I replace them with Honeywell RTH6350 thermostats? Help. Thank you... Brian