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

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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

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Contents 81M26 81M27 81M28 Important Safety Information Do not USE with Commercial EquipmentTable of Contents How do I change the time of day and day of the week? MenuHow do I turn on the heating or cooling cycles? How do I cycle the fan? How does Intermittent FAN work?How do I temporarily change the temperature? SET Temperature ATCan I set a temporary adjustment for longer than 3 hours? 70 ˚How do I return to the Program Mode after being in HOLD? 70 ˚70˚ How do I set the Vacation Mode?How do I program my thermostat? Day to be set the same. MON-FRI allows for weekdaySET Cool How do I copy one day’s program to another day? Monday ProgramWhat is an event? How do I know what program is right for me?What is the difference between Basic and Precision modes? How do I set the Dehumidify Levels?What is the Dew Point Adjustment Function? What happens if the mode is set to OFF?Can I change the Humidifier Maintenance Service Intervals? What are the User settings? Or CSetpoint Temperature Clock SettingsNumber of Events PER DAY More Detailed Information on the User Settings Differential SettingsSecurity Settings When would I need to change the User settings?Security Code What are the Installer settings? System SetupInstaller settings Auxiliary HeatResidual Cool Balance PointsDeadband Setpoint Energy Efficient RecoveryHumiditrol When would I need to change the Installer settings? Service Monitor MenuTemperature Offset Contact InformationHow does Energy Efficient Recovery EER work? Where should I install a remote outdoor sensor?How does my remote outdoor sensor work? What do the lights below the display mean?How do I know if the heating or cooling is on? What should I do if my power goes out?Who do I contact for more information? My energy bills are too high. Is there anything I can do? 504, 684M
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