COMMUNITY FORUM

JoeB27

09:48PM | 12/15/02
Member Since: 12/15/02
4 lifetime posts
Bvhvac
I am completely confused on the Aprilaire wiring schematic. The himidistat itself needs 24V AC which I can get from the transformer on the switch-box housing mounted to the furnace. If the Honeywell fan board on my new Heil furnace has the "EAC" and "HUM" accessory terminals (which are on the 115V AC side of the internal transformer), how do I connect the 2 leads that run from the humidifier to the humidistat?? The humidifier itself has a grounded 115V AC plug for the fan and also has a transfomer itself inside.

JoeB27

08:42PM | 12/17/02
Member Since: 12/15/02
4 lifetime posts
I think I got it?! (obviously you have seen the Aprilaire 700 schematic)? I am going to wire some type of transformer (I'm not sure where I will mount it). The 115 (primary) side of the transformer will be connected via spade terminals to the HUM on my funace fan board (since the furnace panel schematic shows those terminals as being on the 115 side) and the 24V side will run to those two wires shown at the top left corner of the Aprilaire manual (24V terminals on the humidistat), then I will wire the 2 wires from the solenoid valve DIRECTLY to the AA terminals on the humidistat and run the outdoor temp sensor and plug in the 115 gounded plug for the fan. By using the fan board for a 24V source, I am also gaining a current sensing relay (Instead of using the "Model 50")...right? Whew! Does that sound correct? The fan in the Aprilaire will only run when the furnace fan board tells the Humidistat via 24V connection, which in turn triggers the solenoid valve right?
Why is there even a 24V transformer built into the Aprilaire??

JoeB27

08:48PM | 12/17/02
Member Since: 12/15/02
4 lifetime posts
Another question. This Aprilaire 700 is being mounted in quite the tight space. I am concerned before I cut the plenum, about the airflow openings on the front of the aprilaire. I am assuming this is just so the power supply board can breathe (meaning the slots are passive and do not suck or blow). I am concerned because the flu pipe of my hot water heater is so close that I may be sucking CO into the plenum??

betaman

10:39AM | 12/01/07
Member Since: 11/30/07
1 lifetime posts
The Model 700 humidifier contains a internal 24 volt transformer that powers the solenoid water valve and a relay that turns on the fan in the humidifier when the humidifier control calls for humidity. The humidifier control does not supply power to the humidifier but acts as a switch to enable the fan and water flow. It took a while to determine this because the installation diagrams are a bit confusing.
Click_to_reply_button
  • People_also_asked_iconHoneywell HE360 Humid Wiring Can anyone please help w/ the wiring on this mo...
    7 REPLIES
  • People_also_asked_iconhumidifer wiring need information on wiring of aprilaire 600 to ...
    3 REPLIES
  • People_also_asked_iconHumidstat This honeywell H1008A requires constant 24VAC a...
    0 REPLIES
  • People_also_asked_iconAprilaire I bought and have installed a Aprilaire model 6...
    0 REPLIES
Inspiration_banner

INSPIRATION GALLERY



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply_choose_button

captcha
type the code from the image

Anonymous

Post_new_button or Login_button
Register

A sticky keyhole just needs a little lubricant. The problem is that WD-40, spray silicone, and other liquids attract more ... It turns out that many bath and kitchen cleansers contain chemicals that are dangerous to the skin and eyes, and often pro... So often we paint tiny nooks white to make them appear larger, but opting for a dark, dramatic wall color like this one—Be... Chocolate-colored walls and large window frames allow the exposed wood beams to take center stage in this small screened p... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... Pursue what's known as the stack effect. To achieve it, open the windows on both the upper and lower floors, and as warm a... Like no other floor type, a checkerboard design works wonders to underscore the retro kitchen theme. Vinyl flooring, ceram... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... In this urban apartment, a standard-issue patio became a serene and green perch by replacing the typical concrete with gro... If you put the washing machine in the mudroom, you can stop the kids from walking through the house in dirty, grass-staine...
Follow_banner_a
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon
 
webapp1