Humidifiers and Dehumidifiers - TrueSteam 9 Gallon VisionPro IAQ wiring to Lennox gas furnace

Hello,

I am trying to install TrueSteam 9 gallon humidifier with VisionPro IAQ. I have completed installation steps till wiring part. I tried to search the forum to find out if anyone has similar setup as myne but no luck. Sorry if it was there and I missed it.

Here is my current setup:
Lennox G43UF gas furnace & PRO TH4110D/TH4210D Honeywell thormostat

Thermostat -----------Furnace ----------Outdoor unit
Y (Yellow)------------->Y<-----------------Y
G (Green)------------->G-------------------
W (White)------------>W-------------------
R (Red)--------------->R--------------------
-----------------------C<------------------C

I want to know how to wire between EIM, Thermostat, Truesteam & furnace from the existing setup mentioned above.

Only 4 wires are being used between thermostat & furnace and 2 wires between furname & outdoor unit.

I am planning to go with the option "Humidification and fan call by thermostat". Honestly I couldn't figureout which one is better between two options mentioned with VisionPro IAQ. If anyone suggests me to go with other option, I can do that too.

I have taken photos of the wiring at furname and thermostat but can't find a way to upload. If I am missing something please let me know.

Thanks in advance for all your help.

What's the model # of the furnace?

T-stat to EIM only needs 3 wires.
1-1
2-2
3-3

Them

EIM----------------Furnace.
Y1-------yellow--------Y------------Y
G--------green---------G
W1------white---------W
R's**----red------------R
C--------blue-----------C------------C

**= leave the factory jumper in place.

Easy and ebst thing to hook up the TrueSTEAM is
Hum---Hum
Hum---Hum

let the IAQ force the fan on.

Thanks for your quick response Jay.

The model number of furnace is : 505,064 M
Can you clarify these two questions please.
Is "Y1 & W1" you mentioned same as "Y & W" on EIM ?
And pins C & R's you mentioned are below the pins 1,2,3 (Thermostat) on EIM ?
What are the settings for DIP switch to "let the IAQ force the fan on" ?

The model number of furnace is : 505,064 M
That's not the model #.. I didn't catch it in the first post, it's the G43UF-----


Can you clarify these two questions please.
Is "Y1 & W1" you mentioned same as "Y & W" on EIM ?
Y is correct, W should be W1 (unless they changed it to W)


And pins C & R's you mentioned are below the pins 1,2,3 (Thermostat) on EIM ?
Yes.


What are the settings for DIP switch to "let the IAQ force the fan on" ?
#374-1

If you need help with the other settings, let me know.. FYI, if you see "E" (auto), change it to a number value.