I need to replace a White-Rodgers tstat (1F82-261) with a VisionPro 9000/EIM and add a TrueSteam humidifier. There are 7 wires in the wall (at tstat).
I believe I have the humidifier wired correctly to the EIM but am at a bit of a loss in hooking the EIM to the air handler system (Lennox CBX32M-018/024,with electric heat/1 breaker; heat pump Lennox 13HPX-024-230-11).
There are 2 multi wire cables (brown casing) entering the air handler - I assume 1 is from the heat pump and the other from the tstat ... how can identify which is which? Once I identify the cable going to the tstat, can I use 3 of those wires (out of 7) to hook up the IAQ on the wall?
I read somewhere here, that the EIM can be considered to be the tstat in this new configuration ... ?

Thank you in advance for any help you are able to pass along!
Bob

 

What's the model # on the heat bank/strip?

Correct.

Trace it from the air handler, one would go outside to the HP, and other going towards the t-stat on the wall.

Yes. 1-red, 2-white, 3-blue.

It's a control board to run everything.

I'll wait till you get back to me on the heat strp. Unless you know W1-W2-W3 was wired up at the air handler?

 

Jay - you are a very patient person, and for that I am thankful!! The heater bank model is EB29 ... I've wired in the humidifier and can deal with the 3 wires to/from the thermostat. I am just very uncertain about the connections between the EIM and the air handler (paranoid, I guess!). Once again, thank you for your understanding!
Bob

 

The # is way too short.. Ones I'm seeing in the manual is ECB29-xxx

If we need to get thing going. we can leave the heat wires off for now.


EIM-----AH-------HP
R's-------R--------R
G--------G
Y------------------Y1
O------------------O
C--------C---------C

We'll come back for the Aux hook up once we get the full mode # on the bank.

 

The info I found on a sticker outside the AH, for the heater is as follows ....

ECB29 - 2.5, 5, 6 - 2P
ECB29 - 5CB, 6CB - 2P

On a tag inside the AH ECB29 - 5CB-2P
It is a very basic, condo contractor installed system, as you can see.

Thank you for the wiring info you've sent me already ... are all connections to be made at TB-1 inside the AH?
Regards,
Bob

 

Did you receive my original reply? (system prob?)
ECB29 - 5CB - 2P

 

Ok, you have a single stage heat strip.

So, Aux1----W1--W1 at HP

Yes.

Sorry not getting back to you right away, been having bad storms here this afternoon, and now heading out of town for the evenig.

 

Thank you Jay ... I will tackle the wiring on Monday and let you know the outcome.

 

Ok, here is the recap.

EIM-----AH-------HP
R's-------R--------R
G--------G
Y------------------Y1
O------------------O
C--------C---------C
Aux1---W1-------W1

Advance setting on IAQ. Anything with "E" must be set to a number value.

110 to 150 you can figure out, ask if not sure.
160-0 (On heat pump system. is best to set it and forget it.)
172-2
173-0
174-1
176-1
180-1
190-0
200-0
210-0
220-2
240-3
280-0
300- up to you.
340-0
342- Did you get an outdoor sensor? If yes-1
345-2
346-0
347-2
350-20
360-35
370-1
372-3
374-0
379-1
383-3
384-0
386-0


Ask if you have questions on rest of the settings.

 

Jay ... I finally got up the nerve today and wired the system as you had instructed - everything seems to be working properly !!! Thank you !
One final question, however, you suggested I set parameter 0379 to 1 (dehumidify with A/C) ... do I need additional wiring (AH, HP, EIM) for this function?
Best regards,
Bob

 

Thanks for the update, and glad to hear it's all working.

Nope. If you set the "DHUM" to 45%, and if the home becomes above 50% (5% above set point), it will force the A/C on and try to bring down the humidity in the home below 50%. If the humidity is very high, it may "over cool" the home up to 3˚ below set point.

 

Once again, thanks Jay - your assistance has been invaluable!