Trane Air Handler questions - wiring an electronic air cleaner

[jpcjguy]

Hi all,

So the previous owner had an Aprilaire 5000 EAC installed but looking at it, they hardwired it to the power - piggybacking off the 240 for the HVAC. That means this thing is running 24/7. Should be wired to run only when the blower is running. Looking at the air cleaner manual, they say to:

Install a single outlet receptacle to the furnace/air handler cabinet which conforms to NEC standards as well as all applicable local codes, using 1 of the 2 options below: Figure 9- Use the furnace/air handler EAC terminals to wire the outlet. Figure 10- If EAC terminals are not available use the Model 51 (supplied) to wire the outlet and refer to the instructions provided with the Model 51. The outlet must only energize when the system blower is on. IMPORTANT: Identify the outlet for “EAC USE ONLY”

Page 5 of this document: http://docs.electronicaircleaners.com/aprilaire-5000-installation.pdf

How can I tell if my air handler has the EAC terminals? It is a Trane from 2014 - TAM7A0C36H31. Can't see any reference to that in a manual I found online but I am not an HVAC wiring expert.

Found the manual for the Model 51: https://s3.amazonaws.com/s3.supplyhouse.com/product_files/51-APR-install.pdf

Anyone have any advice or thoughts on this?

Thanks,

 

[4x4Pete]

It will have a terminal labelled "eac" on the board. That will be the 120v hot supply for the air cleaner.

 

[jpcjguy]

It will have a terminal labelled "eac" on the board. That will be the 120v hot supply for the air cleaner.

So this air handler should have it? I just need to find it? I looked through an install and service manual I found online and there was no mention of EAC.....

 

[4x4Pete]

Sorry my bad. Most air handlers have a eac connection. I just checked the manual and your unit doesn't appear to have one. The Aprilaire model 51 sensor will have to be used. That is easy enough to wire.

 

[jpcjguy]

Sorry my bad. Most air handlers have a eac connection. I just checked the manual and your unit doesn't appear to have one. The Aprilaire model 51 sensor will have to be used. That is easy enough to wire.

Thanks for checking - so I assume I have to find the common wire on the blower motor next....
Think I found a wiring diagram that is applicable: https://www.theacoutlet.com/documents/Specsheet-AS-TAM7.pdf