free webinar

Keep cool and register for Critical Cooling & Controls!
On-site at AHR Expo, January 27th in Chicago! Limited to 150 attendees…

HVAC Product/Literature/Software

Draft controller: Schebler Chimney Systems

February 3, 2014
/ Print / Reprints /
ShareMore
/ Text Size+

Schebler-020314-body.jpgSchebler says its Sequence Draft Control™ (SDC) design service offers boiler and hot water heater manufacturers a complete engineered venting system. SDC is capable of maintaining the desired condensing dew point of combustion, preventing excess draft which impacts efficiency and fuel/air ratio’s – especially with high turndown modulating burners.

This system uses Schebler eVent™ Series dampers at the outlet of each appliance. This modulating damper with pressure transducer maintains the factory recommended firebox positive pressure or negative draft condition at all times. The damper accounts for appliance firing rate – anywhere between high fire and low fire — stack temperature, outside air temperature, and other operational anomalies such as summer/winter operation and appliance proximity to the common stack.

Excess or uncontrolled draft can also impact the combustion CO2% — critical for condensing boiler and water heater applications to achieve the desired increased efficiencies. Excess draft impacts the condensing dew point (moving through the outside air reset schedule curve) which impacts the desired efficiency capabilities that condensing boiler and water heater designs offer.

Sequence Draft Control™ also improves system start up by reducing excessive draft conditions. The damper is placed in a pre-purge position to allow easy ignition and eliminate flame failure conditions which are typical in common vented systems.

www.scheblerchimney.com

You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

ES Gallery: Snapshots & Systems

Check out highlights from projects featured in our magazine this year!

Engineered Systems Magazine

image

2014 December

Check out the December 2014 issue of Engineered Systems.
Table Of Contents Subscribe

System Design

Based on your experience and knowledge level, are you currently comfortable designing or maintaining a system incorporating VRF or radiant ceiling panels?
View Results Poll Archive

THE ENGINEERED SYSTEMS STORE

The_Green_Energy_Management
The Green Energy Management Book

Learn from our experts how to evaluate job opportunities, market your services, sell a Walk-through Survey, target areas for an Energy Audit, calculate energy savings, do retrofit work, and win continuing contracts for retrofit work.

More Products

Clear Seas Research

Clear Seas Research ImageWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

Tomorrow's Environment Podcast

This series from longtime columnist and chronic forward-thinker Howard McKew covers a lot of ground -- from retrocommissioning to systems training, on toward checklists for drawings and tips for meeting minutes. Click HERE to be taken to the podcast page!

STAY CONNECTED

new Facebook icon Twitter icon YouTube iconLinkedIn icon  Google+