Humidifiers

EWC Controls Ultra-Zone (previously autoFlo) Steam Humidifier

• Ultra-Zone Steam Humidifier Brochure (1,316 KB PDF)
• Comparison Chart: Ultra-Zone vs. Honeywell (14 KB PDF)
• Comparison Chart: Ultra-Zone vs. Skuttle (15 KB PDF)
• Ultra-Zone Steam Humidifier Installation Instructions and Owner's Manual - Revision L (since September 2005) (9.1 MB PDF)
• Ultra-Zone Steam Humidifier Installation Instructions and Owner's Manual - Revision J (before September 2005) (738 KB PDF)
• Ultra-Zone Smart Digital Thermostat Installation Instructions and Owner's Manual (397 KB PDF)
• Ultra-Zone Zinc Anode Replacement Instructions (33 KB PDF)
• Ultra-Zone Fan Failure Interlock Wiring Diagram (22 KB PDF)
• Ultra-Zone Circuit Board Replacement Instructions (99 KB PDF)
• Ultra-Zone Fill Valve Replacement Instructions (1,881 KB PDF)
• Ultra-Zone Heating Element Replacement Instructions (32 KB PDF)
• Ultra-Zone Thermistor Probe Replacement Instructions (405 KB PDF)
• Ultra-Zone Water Probe Replacement Instructions (1,475 KB PDF)

Trion Herrmidifier Atomizing Humidifiers

• Whole-House Humidifiers (214 KB PDF)