TRANE Defrost Control Board Settings? - 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 10-17-2011, 01:43 PM   #1
Newbie
 
Join Date: Oct 2011
Posts: 3
Rewards Points: 10
Default

TRANE defrost control board settings?


Can anyone help me identify the defrost cycle switch or jumper settings (30, 45, 90-minute) on the defrost control board? The control board I have is a CNT04695 (same as the CNT4695). Thank you!

Advertisement

TRANEnovice is offline   Reply With Quote
Old 10-17-2011, 06:45 PM   #2
AKA HVACTECHFW
 
Join Date: Nov 2010
Location: NE Indiana
Posts: 2,370
Rewards Points: 1,104
Blog Entries: 1
Default

TRANE defrost control board settings?


That looks like a demand defrost control board.......

Advertisement

__________________
IT IS WHAT IT IS
hvactech126 is online now   Reply With Quote
Old 10-17-2011, 07:00 PM   #3
Newbie
 
Join Date: Oct 2011
Posts: 3
Rewards Points: 10
Default

TRANE defrost control board settings?


Thank you hvactech126, yes that is the control board. Any recommendation on interpreting how to distinguish between 30 / 45 / 60-minute settings for frost cycle?
TRANEnovice is offline   Reply With Quote
Old 10-17-2011, 07:36 PM   #4
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,570
Rewards Points: 4,778
Default

TRANE defrost control board settings?


Demand defrost boards don't have a timer.
beenthere is online now   Reply With Quote
Old 10-17-2011, 08:01 PM   #5
Newbie
 
Join Date: Oct 2011
Posts: 3
Rewards Points: 10
Default

TRANE defrost control board settings?


Without a timer the defrost cycle is fixed. Any idea how many minutes the fixed cycle is for this defrost board?
TRANEnovice is offline   Reply With Quote
Old 10-17-2011, 08:23 PM   #6
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,570
Rewards Points: 4,778
Default

TRANE defrost control board settings?


Quote:
Originally Posted by TRANEnovice View Post
Without a timer the defrost cycle is fixed. Any idea how many minutes the fixed cycle is for this defrost board?
Its not fixed. It only defrost when when it determines the coil is to frozen/frosted. One day it might do it once every 2 hours, the next once every 3 hours, and below 20 degrees not at all. It will defrost once every 6 hours to make sure the outdoor coil doesn't become oil logged. All times I posted are compressor run times, not just hours of the day.

On demand defrost is the more efficienct way to do defrost, as it doesn't do them needlessly.

Advertisement

beenthere is online now   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
Carrier furnace not igniting-bad control board? stick_boy1106 HVAC 4 04-21-2011 07:28 PM
blower control board ferawhile HVAC 0 04-14-2011 11:57 AM
York gas heater control board replacement spyvan HVAC 5 12-29-2008 08:12 AM
Blower control board mlmaher HVAC 1 11-24-2007 02:39 PM
Ruud a/c control board replacement ? kourso HVAC 1 07-20-2006 10:33 PM




Top of Page | View New Posts