ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Inspection camera help
by petey_c. 09/22/18 07:52 AM
Motion detectors and dimmers
by gfretwell. 09/20/18 04:02 PM
Extension cords
by annemarie1. 09/20/18 08:54 AM
220/230/240V 60Hz Systems
by gfretwell. 09/16/18 12:37 PM
Acronis Backup 2017
by gfretwell. 09/16/18 12:46 AM
New in the Gallery:
Plug terminals
Housebilding DIY wiring
Who's Online Now
0 registered members (), 31 guests, and 26 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Alberta Exhaust Fan Interlock #102622
06/24/06 01:37 AM
06/24/06 01:37 AM
C
CRM  Offline OP
Member
Joined: Feb 2004
Posts: 74
Alberta Canada
The Alberta Building Code requires the principal exhaust fan to be interlocked with the furnace fan. An average size home usually has 2 bathroom fans upstairs, 1 downstairs. How do I determine what is the principal exhaust fan? Do I have to interlock all the bathroom fans with the furnace. On some newer homes I've seen there is a switch in the hallway, that somehow is wired in with the fan and furnace. What is the correct way to wire the fan and furnace in a new home. Thanks for any replies.

Tools for Electricians:
Re: Alberta Exhaust Fan Interlock #102623
06/24/06 02:13 PM
06/24/06 02:13 PM
dougwells  Offline

Member
Joined: May 2003
Posts: 1,149
kamloops BC Canada
This is about all i can help you with [Linked Image] http://www.bcelectrician.com/furnace_fan_timer.html

Re: Alberta Exhaust Fan Interlock #102624
06/24/06 05:34 PM
06/24/06 05:34 PM
L
LarryC  Offline
Member
Joined: Jul 2004
Posts: 783
Winchester, NH, US
Doug, do I understand this right? When the "principal exhaust fan" is switched on, the furnace fan must also come on. It is assumed that the furnace also supplies make up air.

LarryC

Re: Alberta Exhaust Fan Interlock #102625
06/27/06 08:33 PM
06/27/06 08:33 PM
C
crash  Offline
Member
Joined: Oct 2003
Posts: 147
Calgary Canada
The Alberta Building Code does not say which exhaust fan must be used as the principle exhaust fan (it can be any exhaust fan in the home except the range hood fan). However the fan must have sufficient capacity to provide 50% of the total ventilation requirements of the home (ABC 9.32.3.4.(1)). And the switch must be centrally located (ABC 9.32.3.4(4)). Also two or more exhaust fans may be interlocked together so that they function simultaneously as the principal exhaust fan (ABC 9.32.3.4.(3)).

[This message has been edited by crash (edited 06-27-2006).]

[This message has been edited by crash (edited 06-27-2006).]


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Scott35
Scott35
Anaheim, CA. USA
Posts: 2,708
Joined: October 2000
Show All Member Profiles 
Top Posters(30 Days)
Admin 13
Trumpy 11
Popular Topics(Views)
249,378 Are you busy
187,310 Re: Forum
176,653 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.017s Queries: 14 (0.002s) Memory: 0.9600 MB (Peak: 1.0916 MB) Zlib enabled. Server Time: 2018-09-22 20:56:29 UTC