2.5 ton Rheem A/C with 3 ton evaporator coil


Old 06-26-13, 06:54 AM
Thread Starter
Join Date: Jun 2013
Location: Canada
Posts: 1
Received 0 Votes on 0 Posts
2.5 ton Rheem A/C with 3 ton evaporator coil

Last week I had a new A/C installed by a contractor.
Specifications: 2.5 Ton Rheem brand with a 3 ton coil.
My house is a 2500sqft.

Can someone let me know, if the contractor installed the right 3 ton coil? He didnt confirm to me what he is installing and I forgot to ask him. Now I wanna check if he installed the 3 ton coil.

please advise.


Separated from...... http://www.doityourself.com/forum/ai...-ton-coil.html

Last edited by PJmax; 07-02-14 at 04:17 PM.
Sponsored Links
Old 07-02-14, 01:53 PM
Join Date: Jul 2014
Location: USA
Posts: 1
Received 0 Votes on 0 Posts
Im srry but a 2.5 ton unit is not gonna work for 2500sf. You need a 4 ton unit for that much area it's usually 1 ton for every 600 sf
Old 07-02-14, 04:19 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 52,541
Received 331 Votes on 309 Posts
Welcome to the forums.

For us to confirm anything we'd need the part numbers of the equipment.
Old 07-03-14, 05:30 AM
airman.1994's Avatar
Join Date: Dec 2005
Location: VA
Posts: 5,767
Received 4 Votes on 4 Posts
Sizing a unit by square feet is dumb! First red flag! Must do a heat load! Did you see the poster was from Canada? Less heat, tighter homes?
Old 07-03-14, 07:46 AM
Join Date: May 2008
Location: Wisconsin USA
Posts: 715
Received 0 Votes on 0 Posts
In a Canadian climate usually dehumidification is a major factor for comfort at the milder temps.

Therefore the evaporator should have been the same tonnage as the condenser to provide a colder coil at 350-CFM per/ton of cooling, thus better dehumidification.

Hopefully, it has a TXV refrigerant metering device on the indoor coil, because at moderate temps a fixed orifice will run too high a superheat & not as cold a coil at moderate temps as a TXV fed coil.

The 2.5-Ton was probably close to right sizing as it needs longer runtimes to dehumidify in that moderate climate.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes
Ask a Question
Question Title:
Your question will be posted in: