Rtu - HVAC - Page 2 - 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 02-17-2014, 06:26 PM   #16
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 10,062
Rewards Points: 762
Default

Rtu


Oh Yeah, just like "interviewing" a customer. well my furnace was doing this ya da ya da yah. I get kinda blunt and ask some pretty direct questions but you have to as half of what they tell you is wrong or missing pertinent info. Same with these posters and my apprentices.

Advertisement

__________________
"Cut it twice and it is still too short".
yuri is online now   Reply With Quote
Old 02-17-2014, 09:40 PM   #17
Member
 
Join Date: Nov 2013
Posts: 130
Rewards Points: 85
Default

Rtu


No cracks...first thing I checked
Tek1 is offline   Reply With Quote
Old 02-17-2014, 09:44 PM   #18
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 10,062
Rewards Points: 762
Default

Rtu


If the flames are rolling out then it may be partly plugged with rust or soot from poor combustion as they are open to the atmosphere. I have heard of some where the inducer fan was failing/not producing enough draft and rusted away. Some have a metal orifice plate behind them. You may have to remove the inducer and check it to see if it is rusted out or the wheel damaged or orifice rusted away. Only other reason is a cracked heat ex or overfired. Usually with a cracked heat ex it is pretty obvious when you watch the flame and the fan comes on that the flames starting jumping/flame disturbance.
__________________
"Cut it twice and it is still too short".

Last edited by yuri; 02-17-2014 at 09:48 PM.
yuri is online now   Reply With Quote
Old 02-17-2014, 09:48 PM   #19
Member
 
Join Date: Nov 2013
Posts: 130
Rewards Points: 85
Default

Rtu


Yuri...it was overfired. I corrected that issue. My main concern is poor air distribution as stated earlier.
Tek1 is offline   Reply With Quote
Old 02-17-2014, 09:53 PM   #20
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,425
Rewards Points: 4,496
Default

Rtu


Post pics of duct work.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is offline   Reply With Quote
Old 02-18-2014, 09:07 AM   #21
Member
 
Join Date: Nov 2013
Posts: 130
Rewards Points: 85
Default

Rtu


I will take pics
Tek1 is offline   Reply With Quote
Old 02-18-2014, 06:42 PM   #22
Member
 
Join Date: Jun 2007
Location: Milwaukee, WI
Posts: 95
Rewards Points: 143
Default

Rtu


I seem to remember working on an AAon unit a number of years back that had 2 stages of gas heat, and the duct work was split coming off the unit. It was on the top of a 12 story apartment providing fresh air to hallways. The top 3 or 4 floors had a pretty warm discharge when the 1st stage of heat kicked in, but the bottom floors were cold. Bring on the second stage and everything warmed up.
Long story short, the 1st stage and 2nd stage were staggered in the unit and the way the duct work came off the unit, we would get temperature variations similar to what you're seeing.
52Caddy is online now   Reply With Quote
Old 02-23-2014, 08:33 PM   #23
Member
 
Join Date: Nov 2013
Posts: 130
Rewards Points: 85
Default

Rtu


Quote:
Originally Posted by 52Caddy View Post
I seem to remember working on an AAon unit a number of years back that had 2 stages of gas heat, and the duct work was split coming off the unit. It was on the top of a 12 story apartment providing fresh air to hallways. The top 3 or 4 floors had a pretty warm discharge when the 1st stage of heat kicked in, but the bottom floors were cold. Bring on the second stage and everything warmed up.
Long story short, the 1st stage and 2nd stage were staggered in the unit and the way the duct work came off the unit, we would get temperature variations similar to what you're seeing.
I thought the same. I increased the pressure for the second gas valve, no major change

Advertisement

Tek1 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





Top of Page | View New Posts