A brochure explains how the “SuperMod” high-turndown gas burner allows building owners and consulting engineers to specify packaged rooftop systems with a single heating source to temper the outdoor air requirements in ASHRAE Standard 62-1989. The unit’s patent-pending design features full 20:1 turndown ratio with continuous modulation between 5% (pilot) and 100% capacity at normal inlet gas pressures. Fourteen burner sizes range from 200- to 2,000-MBtuh output capacity. McQuay International, 13600 Industrial Park Blvd., Minneapolis, MN 55440; 800-432-1342; www.mcquay.com (website).

eProduct #69

Publication date: 09/18/2000