New Greenheck Video Demonstrates Make-Up Air Start-Up

Greenheck’s latest video demonstrates how to perform a general start-up of a direct gas-fired make-up air unit. The video details the process step-by-step from checking for proper belt tension and alignment, to energizing the unit’s control circuits,  measuring fan RPM, testing pressure differential and verifying and setting the unit’s inlet gas pressure, temperature and pilot gas pressure—all aspects of starting up a direct gas-fired make-up air unit.

To view the video, visit and click on the Resources link found on the home page navigation bar. Then click on Library and Videos.