Validate Whole House Humidifier with Prestige Thermostat Setup

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  #1  
Old 04-25-11, 01:36 PM
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Validate Whole House Humidifier with Prestige Thermostat Setup

Hello,
I have purchased a HW Prestige Tstat and would like to control my older aprilaire 550 manual humidifier. Currently the 550 has two wires coming from going into the HUM and Com24v on the Bryant furnace. Do I run both of these wires up to the thermostat?

If I understand the manual correctly the current HUM wire would go into the topmost U1 and that is also jumpered into the R and Rc, the current Com24v wire from the 550 would go into the bottom most U1?

Thanks!
 
  #2  
Old 04-25-11, 02:11 PM
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dont do what you just said! please post the model number of your t-stat.....
 
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Old 04-26-11, 02:10 PM
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Lol. Apparently I'm glad I posted.

Furnace is a Bryant Plus 90

Humidifier is a AprileAire 550

Current Humidistat is a AprilAire Auto-trac Control System that's attached to the return. It Has a dial from 1 to 7, 5 being normal. It has a temp sensor on the outside and is a manual setup.

Thermostat is a Honeywell Prestige
Prestige HD | 7-Day Programmable Thermostat
Op Manual: http://customer.honeywell.com/techli...69-2053EFS.pdf
Install Manual:
http://customer.honeywell.com/techli...69-2057EFS.pdf
--this is version 3 of the manual which is very close to my manual. I have version 4.

I do not currently have the wireless temp and humidity sensor but it's on order (so I haven't done anything yet)

Thanks
 
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Old 04-26-11, 05:16 PM
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Old 04-26-11, 07:26 PM
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Wow Thanks! That I would not have thought to do from the little instructions that were in the manual.
 
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Old 04-28-11, 07:08 PM
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HVACtechFW.

I don't think you do it this way?? Yhe U is "dead" unless a jumper added from something.. So this case, jumper from U2 to C
 
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Old 04-28-11, 07:13 PM
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U1 is dry contacts, if you view the picture I added C to U1 then out of the other U1 it goes to the solenoid valve. Doing it this way, 1 uses less wiring.... 2 allows for additional control to only humidify during call for heat by using the hot side to the humidifier from the HUM terminal in the furnace control board.

TRUST ME! It will work!
 
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Old 04-28-11, 07:26 PM
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Originally Posted by hvactechfw View Post
U1 is dry contacts, if you view the picture I added C to U1 then out of the other U1 it goes to the solenoid valve. Doing it this way, 1 uses less wiring.... 2 allows for additional control to only humidify during call for heat by using the hot side to the humidifier from the HUM terminal in the furnace control board.

TRUST ME! It will work!
Duh! I should of looked up.. Guess I am used to the IAQ with 1 and 2... You are right, it will work!
 
  #9  
Old 08-03-11, 12:03 AM
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Prestige to humidifier wiring

Hello all,

I have read all the posts but am still stumped a bit, my furnace a goodman gks9 version does not have a hum input.

correct me if i am wrong, my current wiring is a standard 5 wire system, i have purchased a new 7 wire cable. if read the instructions correctly on the prestige manual i am to :

1. jumpo rc to u1- this i believes gives me 24 v
2. the other u1- would serve as a 24v output and would connect to one lead of the hum solenoid
3. the other lead of the solenoid would connect to the com on the furnace board

this in turn will power my humidifier when heat is called.

all help is appreciated!!
 
  #10  
Old 08-03-11, 05:39 AM
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This will allow your hum to run anytime the stat calls for humidification. Goodman does not have a hum terminal as you said. 2 options exist . Get a #50hum relay or use 24vit outgoing from the pressure switch. You could also wire the way you said and it will work.
 
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Old 08-03-11, 12:33 PM
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So, if i wire it the way i stated, it will function all the time rather than run only when heat is called??

the way you said with the #50 relay will work only when heat is called??

trying to picture this!!

if so dont think i want it to run all the time!!
 
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Old 08-03-11, 03:25 PM
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If you wire as you stated, then it has the potential to run anytime. The prestige has the capability to only humidify with heating only. I just like the extra protection of having it only possibly powered with heating only.
 
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Old 08-03-11, 10:56 PM
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How will that be wired with heating only!!! Pictures if you dont mind!!
 
  #14  
Old 08-04-11, 04:21 AM
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The stat controls it to only allow the humidifier to run if there is a call for heat. Read your manual.
 
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Old 08-04-11, 10:25 AM
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Thanks, ill wire it and look at the manual!

Another question for the guys, I have a goodman GKS9 series 92% efficiency furnace, how many cycles per hour is recommended for heat, and AC, I have a goodman 13 seer GSX13 series?
 
  #16  
Old 08-04-11, 11:23 AM
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3 cph for heat and ac.........
 
  #17  
Old 08-04-11, 06:46 PM
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Thanks, this helps a lot, very much appreciated!!
 
  #18  
Old 01-05-12, 07:27 PM
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Didn't work...

Hi,

I'm hoping you can help me figure out what I did wrong.

I have a Prestige IAQ thermostat (9321) and a new Honeywell Equipment Interface Module (EIM) (http://www.forwardthinking.honeywell...ge/69-2490.pdf) through which the thermostat and furnace is wired. This part works fine.

I have a single heat, single cool Rheem furnace (Quiet Comfort 80?) and a Aprilaire 700 humidifier.

There are Red, C(ommon), Green, White, and Yellow wires coming from the furnace and into the EIM. From there, only the Red and C(ommon) wires continue upstairs to the thermostat.

I wired a jumper from C to U1(1), and from U1(2) - the second U1 port - to the first wire coming out of the Humidifier. I then tied a second wire from the HUM panel on the furnace to the second humidifier wire. When I turned the power back on, as soon as the heat kicked in, it blew the solenoid valve, the EIM and the furnace fuse.

What did I do wrong?
 
  #19  
Old 01-05-12, 08:01 PM
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What did I do wrong?
This was not your thread.... Depending on your furnace model the HUM terminal in your furnace is probably 120V not 24V. Not every furnace is the same.
 
  #20  
Old 01-05-12, 09:17 PM
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I thought I had tested that prior to wiring it...
 
  #21  
Old 01-05-12, 09:34 PM
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please start your own thread.
 
 

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