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Old 12-17-2010, 06:59 PM   #16
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Armstrong furnace how to wire humidifier


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Originally Posted by doublewide6 View Post
Thanks for the quick response.

All wires going from the thermostat terminals do wire nut to the indoor unit. However there is one extra wire not in use. It is a brown 20 gauge wire it runs from the thermostat to the furnace, but not connected on either end.
connect it to b on stat and then connect the other side to the w terminal on iaq

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Old 12-17-2010, 07:14 PM   #17
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connect it to b on stat and then connect the other side to the w terminal on iaq

What do you mean by W terminal on IAQ?
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Old 12-17-2010, 07:20 PM   #18
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Originally Posted by doublewide6 View Post
What do you mean by W terminal on IAQ?
your IAQ control has a w terminal. See drawing
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Old 12-17-2010, 07:32 PM   #19
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Armstrong furnace how to wire humidifier


Thanks for all the help I have not received my humidifier yet. I will probably get it here by Monday and begin my install this week. I will let you know how things work out. Have a good holiday. DW
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Old 12-18-2010, 02:34 AM   #20
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Armstrong furnace how to wire humidifier


You have an electric heater that has no EAC or HUM terminal when I checked the pics. Your voltage is all 220v and you need 24v to run a humid.

You need to install a set of isolating to stop the voltage from back feed during cooling operation.
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Old 12-18-2010, 06:57 AM   #21
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Armstrong furnace how to wire humidifier


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You have an electric heater that has no EAC or HUM terminal when I checked the pics. Your voltage is all 220v and you need 24v to run a humid.

You need to install a set of isolating to stop the voltage from back feed during cooling operation.
I am considering wiring a 120v switch that controls an outlet that the humidifier (transformer) plugs into, so that I can turn it off in the summer by hitting the switch. Being that my humidifier unit is digitally controlled will it be able to "sense" when the heat blower is running and only run when the heater is running, or will it just run all the time (even when the fan is not running) I like my fan set on auto I don't like the air running 24-7. Thanks for the help. DW
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Old 12-18-2010, 03:32 PM   #22
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that why I told you took hook wire from b at stat to w on iaq control. this will signal heating
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Old 12-18-2010, 07:11 PM   #23
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HVACTech,
Sorry, I misunderstood your wiring plan. Now it is clear that I will be using a separate 120V outlet and a transformer, rather than tying into the furnace wiring.
I will hook up B to the thermostat to W on the IAQ. Today I wired a new 120v outlet to the furnace closet that is controlled by a switch so I can turn off the humidifier in the summer. I still have not yet received the humidifier from Fed-Ex, but it should be here by Monday or Tues. I'm feeling good about the install now. I will let you know how it goes and post some pics, hopefully, by the end of the week. Thanks again. DW
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Old 12-21-2010, 07:27 PM   #24
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Hi,
I got the humidifier today and installed it to the stack. Now I am ready to wire it up. I'm just trying to make sure I understand this right.

http://www.alpinehomeair.com/related...de%2001.10.pdf

These are the terminals on the IAQ (wiring diagram on p. 11)

R- wire nut to red wires outside furnace
C- wire nut to blue wires outside furnace
sensor
sensor -- Both sensors to outdoor sensor
W- tied to B on the thermostat (brown wire)
G- wire nut to the Green wires outside the furnace
vent
vent
dehum
dehum
hum - wire to postive on 24v trans
hum- wire to solenoid through hum out solenoid and to neg. 24V trans.

Thanks in advance for taking the time to look through this for me. I really appreciate it. DW
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Old 12-21-2010, 08:12 PM   #25
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Armstrong furnace how to wire humidifier


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Originally Posted by doublewide6 View Post
Hi,
I got the humidifier today and installed it to the stack. Now I am ready to wire it up. I'm just trying to make sure I understand this right.

http://www.alpinehomeair.com/related...de%2001.10.pdf

These are the terminals on the IAQ (wiring diagram on p. 11)

R- wire nut to red wires outside furnace
C- wire nut to blue wires outside furnace
sensor
sensor -- Both sensors to outdoor sensor
W- tied to B on the thermostat (brown wire)
G- wire nut to the Green wires outside the furnace
vent
vent
dehum
dehum
hum - wire to postive on 24v trans
hum- wire to solenoid through hum out solenoid and to neg. 24V trans.

Thanks in advance for taking the time to look through this for me. I really appreciate it. DW
looks good
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Old 12-23-2010, 04:53 PM   #26
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Armstrong furnace how to wire humidifier


Hi hvactech,
I noticed that on the wiring diagram of the True IAQ it shows a small jumper wire running from the vent terminal to the dehumidifier terminal (page 11). I do not have a dehum hooked up to my furnace, so was wondering if I need this jumper wire or not. Right now, I'm stalling on the wiring due to Christmas. I know that if I screw up my heater, I will not be able to get a service guy out until after the holiday. Anyhow, have a great holiday and thanks again for your expertise. DW
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Old 12-23-2010, 08:23 PM   #27
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Originally Posted by doublewide6 View Post
Hi hvactech,
I noticed that on the wiring diagram of the True IAQ it shows a small jumper wire running from the vent terminal to the dehumidifier terminal (page 11). I do not have a dehum hooked up to my furnace, so was wondering if I need this jumper wire or not. Right now, I'm stalling on the wiring due to Christmas. I know that if I screw up my heater, I will not be able to get a service guy out until after the holiday. Anyhow, have a great holiday and thanks again for your expertise. DW
should not need it. however. it does show it on schematic so put it on
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Old 12-24-2010, 08:32 AM   #28
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Armstrong furnace how to wire humidifier


Well I wired it up and for some reason the solenoid is not opening, I don't even hear it click. The transformer has 26V the directions say hook up wires to the + and - terminals of the transformer but the transformer has a R and C. I treated the C as the common wire and the R as the positive. Do they need to be switched? My heat and the IAQ all seem to be operating fine. It is just not getting water. I know water is at the solenoid because it leaked until I tightened the nut some more. Thanks DW
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Old 12-24-2010, 09:31 AM   #29
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x-fmr (R) to hum1. Hum2 to Solenoid1. Solenoid2 to X-fmr (C) it maters not r or c the way you have it hooked up. on the iaq ensure you have it set to humidify. and that the humidity setpoint is above current humidity reading

check for voltage across c and w at iaq... also the furnace must be calling for heat, I believe.
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Last edited by hvactech126; 12-24-2010 at 09:35 AM.
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Old 12-24-2010, 09:56 AM   #30
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Originally Posted by hvactech126 View Post
x-fmr (R) to hum1. Hum2 to Solenoid1. Solenoid2 to X-fmr (C) it maters not r or c the way you have it hooked up. on the iaq ensure you have it set to humidify. and that the humidity setpoint is above current humidity reading

check for voltage across c and w at iaq... also the furnace must be calling for heat, I believe.
The furnace is calling for heat I have it set 10* higher then the room temp. There is no voltage at the solenoid, so that is why it is not opening. To check c and w do I just touch c and w at the same time and read the voltage? Thanks I checked C + W they have about 26volts. Across the hum and hum terminals on the Iaq reads 26v as well, but still nothing at the solenoid.
Update::: I noticed that on the wiring schematic W goes from the Iaq to the thermostat (used a brown wire), but I was wondering if I need to tie W to the furnace as well. If that is the case that could be my problem. Please refer to Pg. 11 Thanks again.
http://www.alpinehomeair.com/viewpro...ions_brochures

If I do have to hook it (the W wire) up to the furnace, here are the wires coming out of the furnace yet.
There is a Brown and White 14 gauge wire that is tied together with the black and the white 20 gauge from the thermostat and there is also a 20 gauge white wire from the outdoor heat pump. All of these are tied together with one wire nut.

There is also one 14 gauge black wire lead coming off the furnace that is not being used.

So of these 2 furnace leads, which should I connect it to? Thanks


Last edited by doublewide6; 12-24-2010 at 01:56 PM.
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