Lennox International Inc 81M27, 81M28, 81M26 user manual What happens if the mode is set to OFF?

110-1052F 5/12/05 11:59 AM Page 16

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What happens if the mode is set to OFF?

The humidification and dehumidification are turned off. The thermostat will simply control to the temperature setpoint.

What is the difference between Basic and Basic/DP (same as Precision and Precision/DP)?

The DP stands for Dew Point. If the remote outdoor sensor (Part #46M98) is connected and Basic/DP or Precision/DP is selected, the thermostat will automatically optimize the indoor humidity level based on the desired indoor temperature and outdoor temperature. In Dew Point mode,the humidify control level (described on the previous page) is ignored.

If Basic/DP or Precision/DP is chosen, a new menu DEW POINT ADJUSTMENT will be displayed.

What is the Dew Point Adjustment Function?

The Dew Point Adjustment can be set from -15% to +15%. These settings allow you to customize the Dew Point setting for your home. Some homes may require an adjustment to help maintain comfort. If you notice condensation on your windows, set the adjustment lower, between -15% to -5%. If your home feels dry, set the adjustment upwards, between +5 to +15%.

Can I change the Humidifier Maintenance Service Intervals?

No. This interval is fixed based on the run time of your system and if the humidifier has been turned on. When the recommended service interval has expired, the screen to the right will appear. Simply press DELAY to be reminded later or RESET to reset the interval.

HUMIDIFY MODE

BASIC

PRECISION

BASIC/DP

PRECISION/DP

HUM MENU SELECT

DEW POINT ADJ

CONTROL

0%

HUM MENU SELECT

HUMIDIFIER MAINTENANCE

LENNOX, INC.

1-800-9LENNOX

DELAYRESET