Lennox International Inc l7742u owner manual Humidification

Models: l7742u comfortsense 7000 series touch screen programmable thermostat

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Humidification

Humidification

BASIC & PRECISION

PRECISION, this adjustment controls the relative humidity (RH) be- tween 15 and 45%.

Scroll to HUMIDITY SETTINGS; press ENTER. Press the box below

HUMIDIFY.

HUMIDITY MODE

HUMIDIFY DEHUMIDIFY

Use up/down arrows to change the humidity setpoint (between 15 and 45%); press SAVE.

HUM SETPOINT

 

DEFAULT (45%)

4O%

DEWPOINTif set up by the installer settings for DEWPOINT, this ad- justment (only when in heating mode) will change the humidification setpoint based on the outdoor temperature and a user−defined dew point adjustment setting. When humidifying, if condensation forms on the windows, the dewpoint should be adjusted in the range of −15 to −5%; if the home feels dry, set dewpoint upward in the range of +5 to +15%.

Scroll to HUMIDITY SETTINGS; press ENTER. Press the box below

HUMIDIFY.

HUMIDITY MODE

HUMIDIFY DEHUMIDIFY

Use up/down arrows to change the dewpoint (between +15 and −15%); press SAVE.

DEW POINT ADJ

 

DEFAULT (O%)

−5%

NOTE − Dewpoint adj available only when outdoor sensor is attached.

OFF

midify, this message appears when HUMIDITY SETTING is pressed:

HUMIDITY MODES OFF

If OFF is selected by the installer settings for HUMIDIFY but DE- HUMIDIFY is on, the dehumidification menu appears (this setpoint ad- just has NO effect on humidification):

DEHUM SETPOINT

 

DEFAULT (5O%)

45%

506229−01 05/09

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Lennox International Inc l7742u, comfortsense 7000 series touch screen programmable thermostat owner manual Humidification