1. CEE News Magazine Archive

Damper reduces the spread of fire and smoke in HVAC systems

Dec. 1, 2000
The Combination Fire/Smoke Dampers combine two dampers in one. The two-position device is tested to 5,000 cycles, intended to prevent the spread of fire (UL 1-1/2-hour fire rating), as well as smoke (UL Class II 350 F leakage rating). Johnson Controls

The Combination Fire/Smoke Dampers combine two dampers in one. The two-position device is tested to 5,000 cycles, intended to prevent the spread of fire (UL 1-1/2-hour fire rating), as well as smoke (UL Class II 350 F leakage rating). Johnson Controls

About the Author

CEE NEWS STAFF

Voice your opinion!

To join the conversation, and become an exclusive member of EC&M, create an account today!

Continue Reading

Sponsored Recommendations

How to Calculate Labor Costs

Most important to accurately estimating labor costs is knowing the approximate hours required for project completion. Learn how to calculate electrical labor cost.

Champion Strut Catalog

Champion Fiberglass is the most advanced manufacturing facility of fiberglass conduit, fiberglass bridge drain and fiberglass strut systems in the world. Its well-trained and ...

8 Types of Electrical Conduit and Their Uses

Electrical conduit is a tube or raceway used to house and protect electrical wires within a building or structure. From data centers to underground subways to ports and bridges...

Xpress Elbows Guide for Industrial Construction

Learn how to get expedited elbows shipped within 2 days.