Gibson Furnace, IAQ And Skuttle Humidifer Connection - HVAC - DIY Chatroom Home Improvement Forum


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Old 12-07-2010, 05:58 PM   #1
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Gibson Furnace, IAQ and Skuttle humidifer connection


I have a new home and recieved a Honeywell IAQ (YTH9421C1002) from a family member who works at Honeywell. The furnace installer did not know how to install the IAQ with the furnace so put his own thermostat on. The Gibson(Nordyne) furnace is a SC92 and has the following connections:
R
C
Y
G
W

the AC is hooked up to C & Y.

I am able to get the furnace to run, but not the humidifer which only needs a 24v red wire/white wire to turn on the solenoid valve. I don't want to post what I wired to skew any answers.
Thanks in advance

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Old 12-07-2010, 06:05 PM   #2
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Gibson Furnace, IAQ and Skuttle humidifer connection


just to verify you are not using iaq stat? What model humidifier? DO you have a humidistat?

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Old 12-07-2010, 06:45 PM   #3
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Gibson Furnace, IAQ and Skuttle humidifer connection


I do want to use the IAQ stat since the original one didn't have humidity control built it.
The humidifer is a Skuttle 2100
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Old 12-07-2010, 06:59 PM   #4
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Gibson Furnace, IAQ and Skuttle humidifer connection


Do you have the control module from the stat wired at all?
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Old 12-07-2010, 07:03 PM   #5
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Gibson Furnace, IAQ and Skuttle humidifer connection


Yes, I have the honeywell stat wired to 123 on the equipment control module
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Old 12-07-2010, 07:08 PM   #6
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Gibson Furnace, IAQ and Skuttle humidifer connection


ok. do you conventional A/c or heatpump
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Old 12-07-2010, 07:10 PM   #7
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Gibson Furnace, IAQ and Skuttle humidifer connection


conventional a/c
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Old 12-07-2010, 07:11 PM   #8
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Gibson Furnace, IAQ and Skuttle humidifer connection


one more question.... outdoor sensor or no? and does humidifier come with a transformer?
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Old 12-07-2010, 07:18 PM   #9
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Gibson Furnace, IAQ and Skuttle humidifer connection


yes there is an outdoor sensor, and the humidifer doesn't have a transformer, unless you use the humidistat that comes with it, but I want to use the Honeywell stat instead.
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Old 12-07-2010, 07:22 PM   #10
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Gibson Furnace, IAQ and Skuttle humidifer connection


G/F-------------------- C/M------------------------ A/C


R-------------------------R
C-------------------------C--------------------EITHER WIRE FROM A/C
W-------------------------W
G--------------------------G
Y--------------------------Y-------------------EITHER WIRE FROM A/C

hum1 to
r right above it
hum2 to solenoid valve
C also to other side
of solenoid valve


out1 and out2
to outdoor sensor


Preferably it would be hooked up differently using a 20va transformer to provide power for the hum. this would ensure that you were not robbing power from the furnace which on some furnaces has caused problems

I have this stat and install this stat all the time, I LOVE IT!!!!

let me know if you need help with the setup functions
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Old 12-07-2010, 07:27 PM   #11
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What about the jumpers on the module
R to RC to RH?
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Old 12-07-2010, 07:30 PM   #12
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leave them
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Old 12-07-2010, 07:58 PM   #13
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Gibson Furnace, IAQ and Skuttle humidifer connection


The furnace kicked on(which is good considering it was -2F this morning). I can't tell about the humidifer right now, but I'll update on that. Thanks for your help!!!
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Old 12-07-2010, 08:11 PM   #14
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Gibson Furnace, IAQ and Skuttle humidifer connection


in setup you only want the hum to run with the furnace. also you can check operation by going to the test function in setup
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Old 12-08-2010, 08:17 AM   #15
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Gibson Furnace, IAQ and Skuttle humidifer connection


The humidifer doesn't seem to be working. I have one of the solenoid wires to C on the module, and the other to hum2, and hum1 jumped to RH. I may check the valve, by wiring 20v straight into it.

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