IO Hvac Controls iO-FAVR-ENH-06 System 321702-401 The Cleveland Controls DFS-221-156 is

The Cleveland Controls DFS-221-156 is a heavy-duty

Engineered for low-voltage furnace control

Using it in an LP application without the proper orifice conversion can lead to hazardous combustion conditions and equipment damage

the S1-THEC11NY is compatible with millivolt systems

fitting most standard Rheem and Ruud furnace compartments

IO Hvac Controls iO-FAVR-ENH-06 System 321702-401 The Cleveland Controls DFS-221-156 isThe iO FAVR ENH 06 System is a comprehensive solution for residential fresh air ventilation, specifically engineered to assist contractors in meeting ASHRAE Standard 62. 2 requirements. This professional grade kit centers on a micro processor logic panel that automates the introduction of filtered outdoor air through the included 6 inch power open spring return damper. Designed for efficiency, the iO FAVR ENHANCED features a single adjustment setup