Hey guys, I have a York [URL="http://www.havenhomeclimatecare.ca/wp-content/uploads/2012/05/tm9x-x-13-furnace-install-manual.pdf"]TM9X060B12MP11B[/URL] and I just received an older [URL="http://www.generalfilters.com/cm/dpl/downloads/products/12/1042_Legacy_Humidifier_Installation_&_Owners_Manual_R.pdf"]GeneralAire 1042[/URL] that I'm looking to install. I have taken some pics to hopefully make this easier. I'm not necessarily tapping cold water for this nor hot water but the water line coming back to the water heater from the Heat recovery unit on the waste stack, has anyone else heard of or done this? I figure it's better than cold and I don't really want to tap into hot water line. Like most I'm unsure about wiring, I've pointed out the HUM terminal on the first picture. [url=http://abload.de/image.php?img=img_20140328_234530t4l0g.jpg][/url] [url=http://abload.de/image.php?img=img_20140327_181431hrbea.jpg][/url] [url=http://abload.de/image.php?img=img_20140329_121619cxj5k.jpg][/url] This unit was given to me used, no transformer, not sure if I need to purchase one or not. I think I need to connect to HUM and C but not 100%. It also came with an old 2 wire humidistat. Can I use the furnace transformer if I need one? The furnace manual says not to so I guess if I need one, I'm going to have to grab one. I think this is the [URL="http://img158.imageshack.us/img158/2834/20081202133404ce5.png"]diagram [/URL]I need but if I [I]can[/I] connect furnace transformer I'm not sure which connections to make as the transformer on my furnace has 4 connections... Basically just wiring is my issue... well for now. Thanks.

My new Aprilaire model 700M humidifier wiring calls for the control unit to be wired through a transformer. My old model 760 had the both of the control's wires connected to the two brown wires on the humidifier (despite the fact that the wiring diagram called for connection to a 24v terminal on the furnace). The line cord on the 760 was plugged into an outlet mounted on the furnace that is live only when the furnace is running. Can I connect the 700M the same way? Does the new controller [U]require[/U] 24V power? If so, can I simply use the old controller? Thanks.