Lennox ComfortSense L5711U Manuale utente

E2007 Lennox Industries Inc.

Dallas, Texas, USA

ComfortSenset5000 Series Models L5711U

and L5732U Programmable Touch Screen

Thermostats

OWNER’S

GUIDE

IMPORTANT

Read and save these instructions.

506067−01

2/2008

Page 2

Table of Contents

Thermostat Features Page 2. . . . . . . . . . . . . . . . . . . . . . . . . .

Thermostat Display Page 3. . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Settings Page 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fan Settings Page 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Program Your Heating and Cooling Schedule Page 7. . . . .

Fan Schedule Page 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cancel a Schedule Period Page 11. . . . . . . . . . . . . . . . . . . . . . .

Set the Time Page 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Override Temperature Setting Temporary Hold Page 13. . . . .

Override Temperature Setting Permanent Hold Page 14. . . .

Override Temperature Setting Vacation Hold Page 15. . . . . .

Temperature Recovery Feature Page 16. . . . . . . . . . . . . . . . . . .

Clean the Thermostat Screen Page 17. . . . . . . . . . . . . . . . . . . .

Battery Replacement Page 18. . . . . . . . . . . . . . . . . . . . . . . . . . .

Reminder Timers Page 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Built−In Compressor Protection Page 21. . . . . . . . . . . . . . . . . . . .

Outdoor Temperature Page 22. . . . . . . . . . . . . . . . . . . . . . . . . . .

Advanced Heat Pump Features Page 22. . . . . . . . . . . . . . . . . . .

Screen Lock Page 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Advanced Settings Page 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting Tips Page 29. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Thermostat Features

SLarge, clear display with backlight shows the current tem-

perature, the current temperature setting and the time −−

even in the dark.

SMenu−driven programming makes set−up effortless.

STouch screen interaction.

SReal−time clock keeps time during power failures and auto-

matically converts to daylight savings time.

SSaving Changes" notification assures you that changes

have been saved.

SChange / check reminders let you know when it is time to

replace filters, UV lamps, batteries, etc.

Page 3

SOverride options allow you to easily override the pro-

grammed schedule.

SSame−schedule programming allows you to program a

schedule for several days at once. No need to copy.

SArmchair programming allows you to remove the thermo-

stat from the wall while you program your schedules.

Thermostat Display

SYSTEM

SELECT EMERGENCY HEAT,

HEAT, OFF OR COOL

FAN

SELECT AUTO,

ON OR CIRC

SCHED

SELECT TO

ENTER SCHED-

ULE MODE

HOLD

SETS A PERMANENT HOLD AND

ACTIVATES VACATION HOLD

CLOCK

USED TO SET

TIME FORWARD

OR BACK

SHOWS FURNACE FILTER,

UV LIGHT OR HUMIDIFIER

PAD CHANGE REMINDER

SCREEN

LOCKS TOUCH SCREEN

FOR CLEANING

DOWN ARROW

LOWERS

TEMPERATURE

SETTING

UP ARROW

RAISES

TEMPERATURE

SETTING

FAN

SS MY TE

HEAT

Se ot T

AUTO

Page 4

Thermostat Display (Continued)

TUE

SHOWS CURRENT

DAY OF THE WEEK

FAN

SHOWS FAN

SETTING

INSIDE

SHOWS CURRENT

INSIDE TEMPERATURE

SET TO

SHOWS CURRENT

TEMPERATURE

SETTING

SYSTEM

SHOWS

CURRENT

SYSTEM

POSITION

TIME

SHOWS CURRENT

TIME OF DAY, HOLD

TIME REMAINING OR

NUMBER OF VACATION

DAYS REMAINING

FOLLOWING

SCHEDULE

INDICATES THAT

THERMOSTAT IS

FOLLOWING THE

PROGRAMMED

SCHEDULE

FAN

SS MY TE

HEAT

Se ot T

TUE

OUTSIDE

SHOWS CURRENT

OUTSIDE TEMPERATURE

(IF SYSTEM INCLUDES

OUTSIDE TEMPERATURE

SENSOR)

AUTO

Page 5

System Settings

PRESS SYSTEM

SELECT SETTING OF HEAT,

OFF, COOL OR EM HEAT

(HEAT PUMP SYSTEMS ONLY)

FAN

SS MY TE

HEAT

Se ot T

Following

Schedule

SCHED HOLD CLOCK SCREEN MORE

Inside

TUE

Outside

AUTO

SYSTEM SETTINGS

The system setting options vary based on your heating and/or

cooling type.

HEAT  Thermostat controls heating system.

OFF  Both heating and cooling systems are off.

COOL  Thermostat controls cooling system.

AUTO  The thermostat switches the system from the heat-

ing mode to the cooling mode based on temperature.

EM HEATHeat pump systems only −− Thermostat controls

emergency heat and auxiliary heat, if needed. Heat pump com-

pressor is not operational.

Page 6

Fan Settings

PRESS FAN.

SELECT SETTING:

ON, AUTO OR CIRC.

FAN

SS MY TE

HEAT

Se ot T

Following

Schedule

SCHED HOLD CLOCK SCREEN MORE

Inside

TUE

Outside

AUTO

FAN SETTINGS

ON  Fan runs continuously. Use this setting for improved

air circulation or for more efficient central air cleaning.

AUTO  Fan runs only when heating or cooling system is on.

CIRC  Fan runs randomly approximately 35% of the time.

Use this setting for improved air circulation or for more efficient

central air cleaning when you do not want the fan to run continu-

ously.

Page 7

Program Your Heating and Cooling Schedule

NOTE − The thermostat includes a battery which makes it pos-

sible for you to remove the thermostat from the wallplate during

program. See page 19.

Your thermostat can control up to four different schedule periods

per day:

Wake  Time when you awaken and want your home at a

comfortable temperature.

Leave  Time when you leave the home and prefer an ener-

gy−saving temperature setting.

Return  Time when you return home and want your home to

return to a more comfortable temperature setting.

Sleep  Time when you are asleep and prefer an energy−

saving temperature setting.

NOTE − Schedule times are in 15−minute intervals.

EDIT THE SCHEDULE:

1 − Press the SCHED key. The SCHEDULE screen will be dis-

played.

2 − Press the EDIT key. The screen will change to display the

days of the week across the top.

MON TUE WED THU FRI SUN

OK TO PICK MULTIPLE DAYS

CANCEL

SAT

Page 8

Program Your Heating and Cooling Schedule (Cont.)

3 − Select any combination of days to edit. You may select

multiple days. These should be days that you wish to follow

the same schedule. Check marks appear next to the days

that are selected. After the first day is selected, the SCHED-

ULE screen returns to the display.

4 − Press the WAKE key. The WAKE key will flash to show it

is selected.

5 − Press the UP and DOWN keys to modify time and heat

and cool temperatures shown on the screen.

6 − Press LEAVE key and repeat step 5.

7 − Press RETURN key and repeat step 5.

8 − Press SLEEP key and repeat step 5.

MON TUE WED THU FRI SUN

FAN

CIRC

CANCEL

PERIOD

HEAT

COOL

OK TO PICK MULTIPLE DAYS

DONE WAKE LEAVE RETURN SLEEP

CANCEL

SAT

Page 9

Program Your Heating and Cooling Schedule (Cont.)

NOTE − The FAN setting can be programmed for ON, AUTO or

CIRC for each period selected. See following page for more in-

formation about fan setting options.

9 − Press DONE key when finished. Saving changes screen

appears to indicate that schedule changes are being saved

to the days selected.

10 − Repeat steps 1 through 9 to set a program schedule for

the remaining days of the week. Example: If Mon − Fri was

selected first, repeat steps 1 through 9 to program Sat and

Sun.

NOTE − To exit the schedule without saving changes, press

CANCEL key at any time.

MON TUEWEDTHUFRI

SAVING CHANGES

Page 10

Fan Schedule

The FAN setting can be programmed for ON, AUTO or CIRC for

each period selected:

ON  Fan runs continuously. Use this setting for improved

air circulation or for more efficient central air cleaning.

AUTO  Fan runs only when heating or cooling system is on.

CIRC  Fan runs randomly approximately 35% of the time.

Use this setting for improved air circulation or for more efficient

central air cleaning when you do not want the fan to run continu-

ously.

Fan Status Display on Home ScreenIf the fan program is

scheduled, AUTO is displayed as the fan setting, along with the

particular fan setting that has been programmed. For example, if,

during the WAKE period, the Fan has been set to AUTO, then

AUTO is shown as the fan setting. However, if, during the WAKE

period, the Fan has been set to ON, both AUTO and ON are dis-

played. AUTO indicates that the fan has been scheduled and ON

indicates that the fan has been scheduled to be ON.

Manually Override Scheduled Fan SettingIf the fan setting

is scheduled, press the FAN key, then press the desired fan set-

ting to manually override the scheduled fan setting. Fan opera-

tion will return to the programmed operation when the next

schedule period begins.

SCHED HOLD CLOCK SCREEN

THU

FAN

SYSTEM

HEAT

Following

Schedule

Inside Set To

AUTO

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