Robertshaw 9820I - Manual (Page 16)

How do I set the Humidity Levels?
The humidity level is adjustable from 15% to 45% RH. From the Main Screen
press MENU.
Use the UP or DOWN arrow to highlight HUMIDIFY. Press SELECT. Use the UP or DOWN
arrow to again highlight HUMIDIFY. Press SELECT. Use the UP and DOWN arrow to adjust the
humidity level. Press SELECT to set.
What is the difference between Manual and Auto modes?
In the Manual mode, the humidifier will turn on only with a call for heat and when the indoor
humidity level falls below the setpoint.
In the Auto mode, the thermostat will evaluate the outside and inside air temperature
and establish an optimal humidity setting to minimize condensation on windows.
This can be fine tuned in the Dew Point adjustment screen. The humidifier will turn
on with a call for heat when the indoor humidity level falls below the calculated setpoint.
What happens if the mode is set to OFF?
The humidifier is shut off. There will be no control of humidity levels in the home.
16
HOME
DAY / TIME
SELECT
MENU
PROGRAM
HEAT/COOL
HUMIDIFY
MAIN MENU
OFF
45%
SELECT
HUMIDIFY MENU
MODE
HUMIDIFY
HUMIDIFY
CONTROL
HUM MENU SELECT
45 %