Honeywell HE420A Owner's Manual - Page 6

HE420A STEAM POWER HUMIDIFIER CAUTION Flooding Hazard. Inadequate support of the float arm can lead to valve seat damage resulting in water leakage. Support the float arm during adjustment. a. Set the humidifier reservoir on a level surface. b. Attach the water feed line and allow the unit to fill until the float valve shuts off the incoming flow of water. The water level should be between 2-1/4 in. (57 mm) and 2-1/2 in. (64 mm) deep. If water level is correct, skip to step 12. c. Adjust the water level in small increments. Raise the water level by pushing down on the center of the float arm. Lower the water level by pressing the float down with one hand and pulling up on the center of the float arm with the other hand. TO RAISE WATER LEVEL TO LOWER WATER LEVEL PUSH DOWN HOLD DOWN PUSH UP M10581A d. Verify the water level by removing enough water to allow the float valve to automatically fill and shut off the water. 12. Remount the humidifier. 13. Reconnect all plumbing connections. 14. Reconnect all electrical connections. 15. Verify the humidifier operation by following the steps in the Checking Your Humidifier Operation section on page 7. End of Humidification Season Clean and shut off the humidifier at the end of the heating season. See the Cleaning Your Humidifier section, steps 1 through 10 and step 12, to shut down for the season. IMPORTANT Be sure the humidifier power is off and there is no water in the humidifier when you are done. 69-1112-2 6