Suction Line - HVAC - DIY Chatroom Home Improvement Forum


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

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

Reply
 
Thread Tools Display Modes
Old 02-23-2012, 10:00 AM   #1
Newbie
 
Join Date: Feb 2012
Posts: 1
Rewards Points: 10
Default

suction line


why is the suction line insulated

Advertisement

shelton65 is offline   Reply With Quote
Old 02-23-2012, 10:49 AM   #2
Part of the Clover Leaf
 
Join Date: May 2011
Location: NW Burbs of Detroit Mi.
Posts: 1,107
Rewards Points: 500
Default

suction line


prevents sweating and heat gain to refrigerant which can cause compressor over heating.

Advertisement

hvac5646 is offline   Reply With Quote
Old 02-23-2012, 04:40 PM   #3
Member
 
biggles's Avatar
 
Join Date: Jan 2008
Location: Long Island
Posts: 3,630
Rewards Points: 2,000
Default

suction line


from the air handler to the condenser is a heat gain then the cycle repeats itself and sweating as mentioned...so think of the hot summer sun banging that line back out without the armaflex wrap that is a load and right into your wallet with a higher suction temperature...the more it sweats the better
biggles is offline   Reply With Quote
Old 02-23-2012, 05:00 PM   #4
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,529
Rewards Points: 4,696
Default

suction line


Just to prevent sweating.

If you had a 20 foot long 7/8" vapor line that had a refrigerant gas temp of 55F, and it was exposed to an ambient temp of 154F. it would only gain 1,060 BTUs of heat.
beenthere is online now   Reply With Quote
Old 02-23-2012, 05:08 PM   #5
Part of the Clover Leaf
 
Join Date: May 2011
Location: NW Burbs of Detroit Mi.
Posts: 1,107
Rewards Points: 500
Default

suction line


Quote:
Originally Posted by beenthere View Post
Just to prevent sweating.

If you had a 20 foot long 7/8" vapor line that had a refrigerant gas temp of 55F, and it was exposed to an ambient temp of 154F. it would only gain 1,060 BTUs of heat.
you musta wanted to post that real bad, Been..but i think i heard the OPs head explode...


Last edited by hvac5646; 02-23-2012 at 05:10 PM.
hvac5646 is offline   Reply With Quote
Old 02-23-2012, 06:44 PM   #6
GC/Master Plumber/Mech
 
Join Date: Feb 2009
Location: Hays, KS
Posts: 1,472
Rewards Points: 504
Default

suction line


Quote:
Originally Posted by beenthere View Post
Just to prevent sweating.

If you had a 20 foot long 7/8" vapor line that had a refrigerant gas temp of 55F, and it was exposed to an ambient temp of 154F. it would only gain 1,060 BTUs of heat.
On earth not mars .. please
__________________
John Wayne once said "Life is tough and it is even tougher if you are stupid"

Tempstar and Trane Dealer
Plumber101 is offline   Reply With Quote
Old 02-23-2012, 06:52 PM   #7
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,529
Rewards Points: 4,696
Default

suction line


Quote:
Originally Posted by Plumber101 View Post
On earth not mars .. please
Some attics exceed 155F.

At an ambient of 123F, the same line would only gain 900 BTUs.
beenthere is online now   Reply With Quote
Old 02-24-2012, 01:22 PM   #8
Newbie
 
Join Date: Jan 2012
Posts: 10
Rewards Points: 10
Default

suction line


Insulation actually acts as a resistance to heat rejection to and heat rejection from atmosphere. When the suction line is not insulated, the refrigerant gains heat and it gets warmer. This warm refrigerant which was supposed to enter at a lower temperature now enters at a higher temperature and thus compressor needs to perform more work than before.

Advertisement

fiveohthree is offline   Reply With Quote
Reply


Thread Tools
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
Gas dryer - installing flexible gas line mspmatt Plumbing 11 12-30-2011 05:32 PM
Gas line for pool heater BillyDIY Plumbing 3 06-10-2011 03:29 PM
ac not cooling, suction line freezing, suction pressure in "Retard" GetYourShineBox HVAC 7 05-26-2011 10:01 PM
Can a roof vent identify where my main sewer line exits the house? YerDugliness Plumbing 8 01-26-2010 05:13 PM
sewer line Master Brian Plumbing 3 05-25-2009 01:53 AM




Top of Page | View New Posts