DIY Home Improvement, Remodeling & Repair Forum > Appliances > HVAC > convert evaporative cooler to refrigerated air




Reply
 
Thread Tools Search this Thread Display Modes
Old 04-22-2014, 08:51 PM  
GabeT
Junior Member
 
Join Date: Jan 2007
Posts: 11
Default convert evaporative cooler to refrigerated air

I live in New Mexico where the majority of homes use "Swamp Coolers" to keep their homes cool during the summer.

I've been thinking about converting my existing system to refrigerated air using the same duct work if possible. Has anyone had any experience doing this? I have a 2000sq ft home with furnace that shares the same duct work with the swamp cooler.

What components do I need to purchase/have installed to make this happen?

I want to do some of this work my self, but understand I need to call a pro to do some of the work, soldering etc. Any help would be great, the old swamp cooler just isn't cutting it anymore.



__________________

Last edited by GabeT; 04-22-2014 at 08:53 PM.
GabeT is offline  
 
Reply With Quote Quick reply to this message
Old 04-23-2014, 10:18 AM  
Wuzzat?
Banned
 
Join Date: Jan 2010
Posts: 2,328
Liked 167 Times on 154 Posts
Likes Given: 94

Default

We had these things in San Antonio. The fan had to be very strong to push the air through the mesh.

Anyway,
"However, unlike air conditioners which rely on BTUs as a means of measuring cooling efficiency, the output of evaporative coolers is rated by CFMs. This measurement essentially describes the cubic feet per minute of air that the swamp cooler can blow into your home, and whether you're cooling a single room or entire home, a basic formula exists for determining the proper size swamp cooler you need."
from
http://www.air-n-water.com/evaporative-cooler-size.htm

In principle you can use the psychrometric chart to convert to BTU/hr of cooling to CFM of moist air but that's beyond my pay grade.
I guess companies that are in zone B & C on the map in the link know best how to do this since they probably sell both types.

ASHRAE knows this but they're very jealous about lending their costly books to libraries.



__________________

Last edited by Wuzzat?; 04-23-2014 at 10:26 AM.
Wuzzat? is offline  
 
Reply With Quote Quick reply to this message
Old 04-23-2014, 11:07 AM  
nealtw
Contractor
 
Join Date: Nov 2010
Location: vancouver, b.c.
Posts: 10,720
Liked 921 Times on 822 Posts
Likes Given: 1590

Default

This like what we see up here in many houses.

air+conditioner.jpg  
__________________
nealtw is online now  
 
Reply With Quote Quick reply to this message
Old 04-23-2014, 01:57 PM  
Wuzzat?
Banned
 
Join Date: Jan 2010
Posts: 2,328
Liked 167 Times on 154 Posts
Likes Given: 94

Default

You might be able to add an HVAC unit upstream of the cooler to help it out but balancing the CFM needed by the HVAC with the cooler may be tricky or impossible.

Have you found a troubleshooting chart for evap. cooler troubles? Maybe the pad is at the end of it's life.

__________________
Wuzzat? is offline  
 
Reply With Quote Quick reply to this message
Old 04-24-2014, 03:41 PM  
GabeT
Junior Member
 
Join Date: Jan 2007
Posts: 11
Default

I want to completely get rid of my swamp cooler and retro fit in HVAC into my existing furnace/duct work.

__________________
GabeT is offline  
 
Reply With Quote Quick reply to this message
Old 04-24-2014, 08:16 PM  
Wuzzat?
Banned
 
Join Date: Jan 2010
Posts: 2,328
Liked 167 Times on 154 Posts
Likes Given: 94

Default

An HVAC dries the air and since your air is already dry you may need some type of humidifier that runs when the AC runs. Very dry air gives some people nosebleeds.

__________________
Wuzzat? is offline  
 
Reply With Quote Quick reply to this message
Old 04-24-2014, 09:01 PM  
nealtw
Contractor
 
Join Date: Nov 2010
Location: vancouver, b.c.
Posts: 10,720
Liked 921 Times on 822 Posts
Likes Given: 1590

Default

When it drys the air the water has to be dealt with at the furance, floor drain or??

__________________
nealtw is online now  
 
Reply With Quote Quick reply to this message
Old 04-25-2014, 08:37 AM  
Wuzzat?
Banned
 
Join Date: Jan 2010
Posts: 2,328
Liked 167 Times on 154 Posts
Likes Given: 94

Default

Yeah, the condensate.

__________________
Wuzzat? is offline  
 
Reply With Quote Quick reply to this message
Old 04-25-2014, 01:27 PM  
GabeT
Junior Member
 
Join Date: Jan 2007
Posts: 11
Default

Quote:
Originally Posted by nealtw View Post
When it drys the air the water has to be dealt with at the furance, floor drain or??
I believe there is a drip line on the furnace to handle that.

I'll update this thread with more detailed info & pics when I get a chance.
__________________
GabeT is offline  
 
Reply With Quote Quick reply to this message
Old 04-25-2014, 01:42 PM  
nealtw
Contractor
 
Join Date: Nov 2010
Location: vancouver, b.c.
Posts: 10,720
Liked 921 Times on 822 Posts
Likes Given: 1590

Default

You will find this interesting and according to the last post there, adding this to an old furnace may be against code.
https://ca.answers.yahoo.com/questio...1092630AAvXzWE



__________________
nealtw is online now  
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options

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


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Reverse Osmosis water cooler??? Rockrz Plumbing Forum 5 07-22-2013 12:02 AM
Strange evaporative cooler problem rjhoward HVAC 3 06-28-2010 07:18 PM
Furnace runs cooler yardjockey HVAC 6 12-01-2008 10:37 PM
Evap cooler is singing (loudly!) operaflute HVAC 2 08-20-2008 12:38 AM
Walk In Cooler Hinges jeh1856 General Home Improvement Discussion 2 04-18-2008 03:04 PM

Newest Threads

LATEST SPONSOR DEALS