Humidifiers and Dehumidifiers - Wiring Aprilaire 700A to Armstrong Air Tech
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CanadianKid
01-14-08, 08:15 PM
Hi- I have wired up my AprilAire 700A to my Armstrong Air Tech G1D91Bu075D16C-2A. I have it hooked up as follows:
W/G & Cf ----> 24 V transformer---> HUM & Neutral
R&C ------> R & C
Everything appears to be ok- but the unit has never turned on- except in test mode. Additionally- the unit displays that the humidity is always 30%. It has never changed in many days. (a second humidistat shows different humidity levels).
Have I made a mistake in the connections? thanks
W/G & Cf ----> 24 V transformer---> HUM & Neutral
R&C ------> R & C
Everything appears to be ok- but the unit has never turned on- except in test mode. Additionally- the unit displays that the humidity is always 30%. It has never changed in many days. (a second humidistat shows different humidity levels).
Have I made a mistake in the connections? thanks
Jay11J
01-15-08, 06:37 AM
Are you using manual mode or outdoor sensor mode?
Humidistat cut into the return ductwork?
Humidistat cut into the return ductwork?
CanadianKid
01-15-08, 07:21 AM
Are you using manual mode or outdoor sensor mode?
A. I have tried both- no difference. Currently it is using Outdoor Sensor.
Humidistat cut into the return ductwork?
A. Unfortunately Yes, it is on the return plenum. No room on supply side.
A. I have tried both- no difference. Currently it is using Outdoor Sensor.
Humidistat cut into the return ductwork?
A. Unfortunately Yes, it is on the return plenum. No room on supply side.
Jay11J
01-16-08, 02:10 PM
Humidistat cut into the return ductwork?
A. Unfortunately Yes, it is on the return plenum. No room on supply side.
That's where it should be, on the return.. not the supply side.
There have been a few other people posted on here stated that they had the same issues as you.. (No change in reading).. I am going to see if I can find it back and see what end up happing.
A. Unfortunately Yes, it is on the return plenum. No room on supply side.
That's where it should be, on the return.. not the supply side.
There have been a few other people posted on here stated that they had the same issues as you.. (No change in reading).. I am going to see if I can find it back and see what end up happing.
Puchatek
02-25-08, 03:31 PM
Hmm, Have you resolved your issue? I seem to be having the exact same problem with my Aprilaire 400A installation.
Thanks...
Rob in VA
Thanks...
Rob in VA
CanadianKid
02-28-08, 06:29 PM
I have not resolved the issue. I am thinking about connecting the R + C to the transformer. Then connecting the W/G and Cf to the HUM and Common. (even though the HUM is 120V). I am concerned it may fry the Humidistat. But take a look here:
http://www.alpinehomeair.com/related/Aprilaire%20Automatic%20Humidifier%20Wiring%20Diagrams.pdf
It looks like that is what the manual is recommending. Thoughts???
Best,
R
http://www.alpinehomeair.com/related/Aprilaire%20Automatic%20Humidifier%20Wiring%20Diagrams.pdf
It looks like that is what the manual is recommending. Thoughts???
Best,
R
Jay11J
02-28-08, 08:22 PM
I am thinking about connecting the R + C to the transformer.
You can wire this to R and C on the board.
Then connecting the W/G and Cf to the HUM and Common.
You need to wire the transfromer to this, then low voltage side to the W/G and Cf.
You can wire this to R and C on the board.
Then connecting the W/G and Cf to the HUM and Common.
You need to wire the transfromer to this, then low voltage side to the W/G and Cf.
Puchatek
02-29-08, 08:10 AM
I have not resolved the issue. I am thinking about connecting the R + C to the transformer. Then connecting the W/G and Cf to the HUM and Common. (even though the HUM is 120V). I am concerned it may fry the Humidistat.
My issue was that I temporarily connected the outdoor temperature sensor to the humidistat, without taking the sensor outside. :D If the sensor registers >60F, the humidifier will never turn on. If your humidifier works in the test mode (you hear the click of the solenoid and see water running for 1 min) then I would check if you're getting 24V on the W/G Cf terminals of the humidistat when your heat is on. If that works, then I would check the outdoor temp sensor.
Rob in VA
My issue was that I temporarily connected the outdoor temperature sensor to the humidistat, without taking the sensor outside. :D If the sensor registers >60F, the humidifier will never turn on. If your humidifier works in the test mode (you hear the click of the solenoid and see water running for 1 min) then I would check if you're getting 24V on the W/G Cf terminals of the humidistat when your heat is on. If that works, then I would check the outdoor temp sensor.
Rob in VA