This should be simple but I'm not 100% sure about the wiring...My current Honeywell Chronotherm III model # T8601C1021 has failed (keeps deleting the "return" program). I want to replace it with the Honeywell VisionPro Model # TH8110U. The installation instructions for the VisionPro show a jumper between the R and Rc terminals where on the Chronotherm III there is no jumper, in fact there is no terminal screw at all at the Rc position. So the question I have is do I leave the jumper in place on the VisionPro or remove it and only have a wire going to the R terminal? Current wiring at Thermostat: O - No wire W - White wire G - Green Wire C - Red Wire R - Red Wire Rc - No terminal screw or wire B - No wire Y - Yellow wire Current wiring at Heater Control (ArcoAir/Inner City Products Furnace Control Model 50A50-112): Y - Yellow wire to thermostat and outside AC compressor (ArcoAir Model AD042G) W - White wire to thermostat R - Red wire to thermostat and "wet switch" (red wire) G - Green wire to thermostat C - Red wire to thermostat & 2 wires of "wet switch" (Green & Black) Additional orange wire from the "wet switch" goes to a red wire that goes to the outside AC compressor. I know this is a lot of wiring info for what is probably a very simple question but I figured too much info is better than not enough. Thanks.

I have a Trane Heat Pump system, XL14i with a 4TEE3F40A variable speed air handler. What should the "System Type Selection" be on the thermostat? How can I find out if the XL14i is a 3 stage heat/2 stage cool or what? Thanks in advance for any help.