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Series HT180 Indirect Gas-Fired Destratification	Description of Air Destratification The Air Destratification principle eliminates stagnant air in heated buildings with open spaces by recirculating hot air which becomes trapped at the ceiling. This is accomplished by removing colder layers which maintain the thermal barrier responsible for the problem. Large volume air movement turns the room air over 1 to 5 times each hour. Continuous air circulation then thoroughly mixes the air to maintain uniform room temperature. This uniform room temperature eliminates the possibility of condensation forming on stored materials because of uneven room temperature. Cold air from open doors in shipping and receiving areas becomes less of a problem with an Air Turnover unit. Temperature recovery is almost instantaneous after doors are closed.
Standard Features • CFM Range: 7,000 -150,000 • Burner Range- 350,000 to 6,000,000 • Heavy Gauge, Mill-Finish Galvanized Construction. • High Efficiency Airfoil Propellers. • Heavy-Duty V-belt Drive. • 460 Volt/60 Cycle/3-Phase Totally Enclosed Fan-Cooled Motors. • Motor starter and disconnect switches. • Temperature process controller and high temperature limit. • 430 stainless steel burn chamber and aluminized steel heat exchanger. • Natural gas-fired, pre-piped U.L. gas train and burner assembly. • 14” diameter flue opening.	Optional Features • Alternate arrangement with one factory mounted damper for 0-25% control of winter outside air with (two position) (modulating) motor(s). • Alternate arrangement with two factory mounted mixing dampers for 0-100% control of winter outside air with (two position) (modulating) motor(s). • Four sided flat bank permanent filters for filtering 100% return air. • V-Bank filter section with nominal 2" thick cleanable filters. • Discharge plenum with screens on four sides. • Discharge plenum extension. • Six bladed propeller fan motors. • High Efficiency propeller fan motors. • Clogged filter switch and indicating light. • Disconnect switch. • Painted galvanized casing. • High gas pressure regulator (shipped loose for inlet pressures over 1 PSIG). • Remote control panel. • Night set back thermostat. • Electronic time clock. • Timed freeze protection. • Smoke detector. • Mixed air temperature controller for mixing dampers. • Manual potentiometer controller for mixing dampers. • Pressure control system for mixing dampers. Representative