InterNACHI


Go Back   InterNACHI Inspection Forum > Specific Inspection Topics > Inspecting HVAC Systems

Notices

Inspecting HVAC Systems Topics include heating, venting, and air conditioning inspections.

 
Reply
 
LinkBack Thread Tools
  #1  
Old 7/28/09, 8:41 PM
nrichards nrichards is offline
New User
 
Join Date: Feb 2009
Posts: 17
Please Note: nrichards is a non-member guest and is in no way affiliated with InterNACHI or its members.
Default Cover for zoned damper control?

Wrote up in an inspection that cover was needed on damper control mounted on duct for zoned HVAC in attic (see attached photo). Sellers HVAC contractor responded that "motor is 24V that needs air to prevent condensation from forming on motor gear and causing failure". Am I wrong, what motor gear, I thought that I typically see these covered and cover has usually fallen off into the attic insulation somewhere?
Attached Thumbnails
cover-zoned-damper-control-010.jpg  
Reply With Quote
Find an InterNACHI certified West Virginia Home Inspector (and anywhere else in North America)
  #2  
Old 7/28/09, 9:34 PM
Patrick Bolliger's Avatar
Patrick Bolliger Patrick Bolliger is offline
InterNACHI Member
 
Join Date: Aug 2005
Location: Chicago, IL
Posts: 890
Send a message via Skype™ to pbolliger
Default Re: Cover for zoned damper control?

Did the sheet metal around the device give you any clue on a cover? Screw holes, clips? The grommets for the wire is a clue if I see it in the photo correctly. As for the control wire it just maybe a quick and dirty connection job as I see it going directly to the motor.

Many times covers are present for sensors or switch devices. Is the contractor using "gear" as the term for equipment or gear as in with teeth on motor shaft? If it is that sensitive, you wonder how could it be installed in any system with temperature changes...

Either way a brand, label or do research into this type of device should give you more information. Honeywell website?

Limit switches for the old Natural gas furnaces are a prime example for devices with covers.


Be careful on the terminology "Needed" It can backfire on you if you are not sure.
Reply With Quote
  #3  
Old 7/28/09, 11:46 PM
David A. Andersen's Avatar
David A. Andersen David A. Andersen is offline
InterNACHI Member
 
Join Date: Jun 2005
Location: Woodlawn, TN
Posts: 5,925
Default Re: Cover for zoned damper control?

I see little concern about the cover.

What about the cut wires?

Why is the actuator motor wired direct?
Electronic components failed?

Does it even work?
Did you test it?

A few more important questions to be concerned about, IMHO.

Expand this pic.



"Insanity: doing the same thing over and over again and expecting a different results." Albert Einstein

David A. Andersen & Associates
Clarksville - Nashville Home Inspector Lic#40
http://www.midtninspections.com
ITC Level III Thermographer Cert#1958
Building Science Thermographer Cert#33784
http://www.thermalimagingscan.com
HVAC Certification EPA Cert#2046620
BPI# 5015804
Link to my Website at: http://www.midtninspections.com/link-submission

Last edited by dandersen; 12/9/09 at 12:23 PM..
Reply With Quote
Reply

Thread Tools

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Poly being applied to Basement walls dvalley Interior Inspections 40 11/24/09 10:49 PM
Electric Panel dmozzillo Electrical Inspections 26 1/26/09 1:18 PM
Options in selecting materials for basement construction wdevries Canadian Inspectors 2 8/4/08 1:30 PM
980 Questions/Answers to the NHIE....Free! jbushart Legislation, Licensing & Legal Issues for Inspectors 50 4/20/08 1:26 AM
Oil Furnace Damper Issue (posted by J. Lawson) AskNACHI.org AskNACHI.org Inspection Questions Forum 1 12/5/07 11:34 AM


All times are GMT -4. The time now is 11:33 AM.


Popular Sections

:

All Sections

Inspection News

InterNACHI Membership

Inspection Standards

Inspection Education

InterNACHI Inspectors

Inspection Links

 

 

 

NACHI.ORG Statistics

 

 

no new posts