Lennox International Inc 81M28, 81M27, 81M26 user manual How do I set the Dehumidify Levels?

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110-1052F 5/12/05 11:59 AM Page 15

How do I set the Humidify Levels?

MENU

 

Humidification can occur only when the thermo-

PROGRAM

HEAT/COOL

stat is in the HEAT mode. The humidify level is

 

HUMIDIFY

 

adjustable from 15% to 45% RH. From the Main

DEHUMIDIFY

Screen press MENU.

 

 

HUMIDIFY MENU

MODE

OFF

HUMIDIFY

45%

 

 

 

HUMIDIFY CONTROL

45 %

Use the UP or DOWN arrow to highlight

HOMESELECT

MAIN MENU

SELECT

HUM MENU

SELECT

HUMIDIFY. Use the UP or DOWN arrow to again highlight HUMIDIFY. Use the UP and DOWN arrow to adjust the Humidify level.

How do I set the Dehumidify Levels?

Dehumidification can occur only when the thermostat is in the COOL mode. The dehumidify level is adjustable from 45% to 60% RH. From the Main Screen press MENU. Use the UP or DOWN arrow to highlight DEHUMIDIFY. Use the UP or DOWN arrow to again highlight DEHUMIDIFY. Use the UP and DOWN arrow to adjust the Dehumidify level.

MENU

 

PROGRAM

 

HEAT/COOL

 

HUMIDIFY

 

DEHUMIDIFY

 

HOME

SELECT

DEHUMIDIFY MENU

MODEHUMIDITROL

DEHUMIDIFY45%

MAIN MENU

SELECT

What is the difference between Basic and Precision modes?

In the Basic mode, the humidifier will turn on only with a call for heat. If there is a need for dehumidifica- tion, this will occur only with a call for cooling.

In the Precision mode, if the conditioned space requires humidification, the system will circulate air and turn on the humidifier to add moisture to the air regardless of whether there is a call for heat. If the condi- tioned space requires dehumidification, the air conditioner will turn on to reduce the humidity level to the desired setpoint regardless of whether there is a call for cooling.

During dehumidification, it is possible to over-cool the conditioned space by up to 2°F to achieve desired humidity levels.

If the HUMIDITROL accessory is enabled in the Installer Settings, the Precision mode selection will appear as HUMIDITROL. This selection allows for the most effective use of the HUMIDITROL equipment.

DEHUMIDIFY MODE

OFF

HUMIDITROL

DEHUM MENU

SELECT

DEHUMIDIFY

CONTROL

45 %

DEHUM MENU

SELECT

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Contents 81M26 81M27 81M28 Do not USE with Commercial Equipment Important Safety InformationTable of Contents Menu How do I change the time of day and day of the week?How do I turn on the heating or cooling cycles? How does Intermittent FAN work? How do I cycle the fan?SET Temperature AT How do I temporarily change the temperature?70 ˚ Can I set a temporary adjustment for longer than 3 hours?70 ˚ How do I return to the Program Mode after being in HOLD?How do I set the Vacation Mode? 70˚Day to be set the same. MON-FRI allows for weekday How do I program my thermostat?SET Cool Monday Program How do I copy one day’s program to another day?How do I know what program is right for me? What is an event?How do I set the Dehumidify Levels? What is the difference between Basic and Precision modes?What happens if the mode is set to OFF? What is the Dew Point Adjustment Function?Can I change the Humidifier Maintenance Service Intervals? Or C What are the User settings?Clock Settings Setpoint TemperatureNumber of Events PER DAY Differential Settings More Detailed Information on the User SettingsWhen would I need to change the User settings? Security SettingsSecurity Code System Setup What are the Installer settings?Balance Points Installer settingsAuxiliary Heat Residual CoolEnergy Efficient Recovery Deadband SetpointHumiditrol Contact Information When would I need to change the Installer settings?Service Monitor Menu Temperature OffsetWhat do the lights below the display mean? How does Energy Efficient Recovery EER work?Where should I install a remote outdoor sensor? How does my remote outdoor sensor work?What should I do if my power goes out? How do I know if the heating or cooling is on?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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