Essick Air 826 800 User Manual
Page 4

IMPORTANT FILLING INFORMATION
8. Before filling the humidifier with water, be certain that the speed control switch is turned off and the
humidifier is unplugged. Fill the water reservoir with water to the level indicated on the wick frame
assembly and “Fill to Here” decal on the cabinet side wall. Do not
overfill. When first filled, the reservoir capacity is 6 gallons.
9. This unit has one reservoir, which when emptied, triggers the
respective refill indication and automatically shuts off the motor. The 
motor will start again automatically when the reservoir is refilled. 
10. When the reservoir is being filled for the first time, the dry wick
absorbs water, requiring more water on the first fill up than 
subsequent fillings. 
NOTE:
We recommend using Essick Air Bacteriostat Treatment
when you refill the water reservoir to eliminate bacterial growth. Add 
bacteriostat according to the instructions on the bottle. 
OPERATION 
1. Plug cord into wall receptacle. Your humidifier is now ready for 
use. The humidifier should be placed at least FOUR inches 
away from any walls and away from heat registers. 
Unrestricted airflow into the unit will result in the best efficiency 
and performance. 
2. The 800 Series 2-speed fan control allows you to use the low
setting for the quietest operation or a high setting for maximum 
output. 
3. Both models have an automatic humidistat that cycles the
humidifier on and off as required to maintain the selected 
setting. 
4. 826 800 Operation
Turn the unit on and set fan speed. For initial set up, adjust the 
Humidity Control Knob to the middle of the range, then adjust 
up or down as needed to achieve the desired humidity level. 
The red refill light will illuminate when the reservoir is empty. 
5. 821 000 Operation
The digital controller has a display that provides information on 
the status of the unit. Press the power button and select fan 
speed – F1 for low speed and F2 for high speed. At initial 
startup the relative humidity of the room will be displayed. Each successive push of the Humidity 
Control Button will increase the setting in 5% increments. At 65% set point, the unit will operate 
continuously. A flashing “F” indicates the reservoir is empty. 
Power and Fan
Speed Selector
821 Model
826 Model
Display Panel: Humidity Display, Refill Indication
and Fan Indication
Fan Speed
Button
Humidity
Control
Button
Power
Button
Refill
Light
Humidity
Control
Switch
