A/C added to existing Trane

[holabr]

My daughter bought a house that has a Trane XR90 gas furnace but no A/C. Is it possible to add A/C from another manufacturer to this unit? The previous owner said they paid $300 extra to make it easier to add A/C later but had no idea what that meant. There certainly is no A-coil installed. Any ideas? The reason I asked about the non-Trane A/C is because I have an installer that is very trusted and reliable, but he does not handle Trane (Amana and Goodman primarily). I also asked my daughter what the model number is but she couldn't find is on the unit. Any ideas where the model and s/n is located on a Trane furnace? Bottom line, are we asking for problems if we mix manufacturers?

[HVAC Teacher]

Any manu. can be installed onto it. M# & S# inside cabinet. Are you sure ther's no A coil? Look for 2 pipes comming out of the discharge ductwork.

[holabr]

I am absolutely sure there is no A-coil. She sent me pictures and the only thing on top of the furnace is a new sheet metal duct to adapt the new furnace to the old larger duct work. No pipes protruding anywhere out of the duct.

[gregp]

The furnace is only being used as the air handler. You can put any mfr a/c system on it, just be sure the furnace can handle the cfm requiremnts for cooling. It is not a good idea to mis-match the cooling equipment.

[BaldLoonie]

Absolutely OK to use another brand. We even sold 2 branded systems for many years. Key is that the indoor coil matches what's outdoors and as has already been said, you move the right air for the size A/C.

Still wonder what she paid $300 for if she didn't get a coil already. $300 to pull 5 wire to the stat instead of 2 conductor?

[travisl]

Is is possible that the $300 they paid may have been for an electrical circuit and disconnect outside at the possible location? We have subcontracted electricians to update electrical for a new furnace install and sometimes the customer opts to pay extra to just get the electrical all done at once.

[BaldLoonie]

Good point, or a lineset now that you mention it.

[holabr]

Nope. No line set or wiring. Is there a possibility the control board in the furnace has an upgrade to support A/C?

[mark beiser]

Maybe the ductwork out of the top of the furnace is already set up to slide an uncased coil in.

[mayguy]

Share the photo with us if your daughter sent you one.

[holabr]

Here are the pictures. Also any idea what make and type of air cleaner that it?

[mayguy]

I don't see anything either. Otherwise, a good install that the Trane dealer has done.

Maybe the dealer was going to put a coil, and and forgot about it? Who knows...

[Sam-the-man]

nice looking install. Is there any particular reason your daughter doesn't want to use the company that installed the furnace? Looks like they did a decent job. The extra cash on original install may have been for a larger size furnace.
They may have opted for a larger-than-needed furnace in order to get a blower large enough to handle the airflow requirements for air conditioning that house.
That looks like a Honeywell F-series electronic air cleaner cabinet without the power source installed. Honeywell makes media filter cartridges that fit into this cabinet, it's likely that's what yours is intended for.