Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 08-17-2010, 05:07 PM   #1
Member
 
Join Date: Aug 2008
Posts: 131
Rewards Points: 75
Default

Which works better - R410a or R22 HP/AC


I'm considering replacing an old R22 Heat Pump with a newer model using R410a. I know that R410a has a lower boiling point than R22 but does it cool and heat better in normal residential applications? The old unit is a 12 SEER and the new one will be 15 SEER. The new one will be more efficient but does that translate into a better conditioned environment in the house or just lower operating costs?
Appreciate any comments or personal experiences.
Thanks.

kb3ca is offline   Reply With Quote
Old 08-17-2010, 05:20 PM   #2
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,554
Rewards Points: 2,788
Default

Which works better - R410a or R22 HP/AC


Weather its R22 or R410A doesn't make it heat or cool any better.

beenthere is offline   Reply With Quote
Old 08-17-2010, 05:33 PM   #3
Member
 
Join Date: Aug 2008
Posts: 131
Rewards Points: 75
Default

Which works better - R410a or R22 HP/AC


Let me ask it another way. Should I expect to have the same delta T on the R410a system as I have on the R22? Currently have 20+ degrees using a 12 SEER Condenser and a 4 ton evaporator coil with TXV. New system will be the same size except the new furnace will have a variable speed blower vice a single fixed speed on current furnace. Just trying to get a feel as to whether I will be disappointed with the performance of the new system using the newer refrigerant, all other things being equal; ie good install.
Appreciate your comments.
kb3ca is offline   Reply With Quote
Old 08-17-2010, 05:50 PM   #4
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 9,621
Rewards Points: 2,380
Default

Which works better - R410a or R22 HP/AC


The type of refrig. has nothing to do with it. What is most important is that your variable speed blower is setup properly. It can be set for a close 400cfm/ton which will give you better de-humidifiying. Delta T is different on higher SEER units. The evap coils are larger to be more efficient. Setting it up properly with the manufacturers subcooling specs and setting the blower to not overspeed are the most important parts.

Have you done a heat load calc to make sure 4 tons is the right size? Oversized is NOT good.
Load Calculator
__________________
"Cut it twice and it is still too short".

Last edited by yuri; 08-17-2010 at 05:53 PM.
yuri is online now   Reply With Quote
Old 08-17-2010, 06:20 PM   #5
Member
 
Join Date: Aug 2008
Posts: 131
Rewards Points: 75
Default

Which works better - R410a or R22 HP/AC


Thanks for the replies. The current R22 Heat Pump is a 3.5 ton with a 4 ton evaporator coil which does an excellent job. Was just concerned if the R410a thermodynamic characteristics were so much different than R22 as to be noticeable in its performance. From what I have researched it looks like R410a is less efficient at higher ambient temperatures than R22 but may not be noticeable in normal residential heating/cooling applications. It's kind of a moot point anyway as there are no more R22 systems out there. Will have to live with whatever performance the R410a system presents. Hope I won't be disappointed.
Thanks.
kb3ca is offline   Reply With Quote
Old 08-17-2010, 06:30 PM   #6
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 9,621
Rewards Points: 2,380
Default

Which works better - R410a or R22 HP/AC


Efficiency is SEER. SEER does not care what type of refrig it is. Which brand and units are you choosing? 2 stage units are better in humid areas. Modern ECM Variable speed blowers have some amazing abilities. Along with the communicating tstats that Lennox, Goodman and others are using.
__________________
"Cut it twice and it is still too short".
yuri is online now   Reply With Quote
Old 08-17-2010, 07:05 PM   #7
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,554
Rewards Points: 2,788
Default

Which works better - R410a or R22 HP/AC


Could have a colder or warmer temp.
Depends on how much air your current blower is moving.

A 45 evap coil temp is 45 weather its R410A or R22.

If you have a diesel engine car. And your neighbor has a gasoline engine car. When you are both driving 65 MPH down the highway. Its the same speed for either fuel.
beenthere is offline   Reply With Quote
Old 08-17-2010, 07:50 PM   #8
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 9,621
Rewards Points: 2,380
Default

Which works better - R410a or R22 HP/AC


You know Max??

__________________
"Cut it twice and it is still too short".
yuri is online now   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
is a charging R410a same as R22 LLB62777 HVAC 8 04-08-2010 05:40 AM
Pressure Switch Stuck Closed --heat works but A/C doesnt assassinmunky HVAC 0 06-23-2009 02:49 PM
New Subpanel Almost works soccio97 Electrical 19 09-04-2008 07:12 AM
Only 1 of 2 Heating Zones Works KMPPROB HVAC 3 01-06-2008 01:13 PM
Blower fan works , but no heat or Ac. will1976 HVAC 1 10-31-2007 11:24 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.