Hey! I just got my new thermostat. I've done this on other systems, but I need some guidance so I don't screw this up: [b]What I have:[/b] Compressor: RPQL-048JEZ Air Handler: RH2V4821MTANJA [url]http://pts.myrheem.com/docstore/webdocs/Public/ServicePublic/Trouble2a/pdfs/Airhand/H1V/92-20521-111-00(-)H1V_(-)H2V.pdf[/url] Thermostat: Honeywell T6 Pro [b]What I am installing:[/b] Thermostat: Honeywell T8321WF1001 Install Manual: [url]https://forwardthinking.honeywellhome.com/related_links/thermostats/wifi-visionpro-8000/install/Installation_Manual.pdf[/url] [b]Current Wiring on existing thermostat:[/b] [attach]106209[/attach] [b]What I need to do:[/b] 1.) I need to change jumpers 9/10 in the Air Handler to be set to 'active' for dehumidification. See Page 32, section 3-13-7. 2.) Wire up existing thermostat Y, G, C, O/B, W2, and R to their respective terminals on the new 8000 Thermostat. [b]What I do not know:[/b] 1.) 8000 Pro Manual, Page 4, Bottom left indicates that I need to add a jumper between R and U1. So install that? 2.) Page 4 of the manual also says to remove the jumper from Rc and R for a two transformer system. I don't know what I have. 3.) Do I need to change any wiring in the air handler accordind to page 26, Section 3.12.9? I don't have a picture of that, perhaps that would be useful to see how it is currently done. It would appear as though I need ONE MORE WIRE from the second U1 terminal on the t-stat to he ODD terminal on the air handler, i.e. Figure 22, Page 27 of air handler manual. I want my thermostat to turn the fan on low speed for dehumidification. I don't have extreme humidity problems, but my home IS leaky because it's old and keeping it dry is nice during times when its just not quite hot enough to make the system run a lot.

[color=#222222]Good afternoon, based on the installation manual and my systems current set up, can you tell me if my system is missing a jumper from W2 to W1/E? The manual makes it seem like there should be a jumper, but maybe there is a reason there isn’t? Here are the pictures. I only ask because I may upgrade to a new thermostat and want to make sure I wire it correctly. Thanks in advance[/color]