Lennox ComfortSense 7000 User Manual

E N G I N E E R I N G D A T A

‘

C O N T R O L S

TOUCHSCREEN

COMFORTSENSEE 7000

7 Day Programmable Thermostat

Bulletin No. 210515

February 2008

MODEL NUMBER IDENTIFICATION

L 7 7 4 2 U

Brand

L = Lennox

Series

7 = Digital Programmable Touchscreen

Programming

7 = 7 Day

FEATURES

The ComfortSense™ 7000 is an electronic 7−day,
universal, multi−stage, programmable, touchscreen
thermostat. It also offers enhanced capabilities including
humidification / dehumidification / dewpoint measurement
and control, Humiditrol
maintenance reminders.

− Large, clear display with backlight shows the current
and set temperature, day/date/time, indoor relative
humidity and outdoor temperature (if optional outdoor
sensor is used).

− Menu−driven programming guides user through the
scheduling process showing only necessary
information on each screen.

− Touchscreen interaction.

− Ergonomic design.

− Smooth Setback Recovery starts system early to
achieve setpoint at start of program period.

− Compressor short−cycle protection (5 minutes).

− Real−time clock keeps time during power failures and
automatically updates to daylight savings.

− Maintenance reminders let user know when to service
or replace filters, humidifier pads, ultraviolet lamps, plus
two user or installer defined custom reminders.

®

control, and equipment

4 Heat / 2 Cool Universal Multi−Stage

System Type

U = Universal Compatibility

Cooling Stages

2 = Two Stages

Heating Stages

4 = Four Stages

− Program Hold options allow user to override the
program schedule as desired by time and date.

− Select individual days or groups of days to set
programming.

− Programmable fan offers increased air quality when
combined with a whole house air indoor air quality product.

− Outdoor temperature display (with optional outdoor
sensor) shows current outdoor temperature.

− Permanent memory storage of programs.

− Remote Lennox Systems Operation Monitor (LSOM)
monitoring (for Lennox equipped LSOM outdoor units)
using the L terminal.

Warranty

Five−year limited warranty in residential applications.
Refer to Lennox Equipment Limited Warranty certificate
included with unit for specific details.

APPROVALS

Factory preset program settings conform to EPA ENERGY

®

STAR

recommended setpoints.

E

NERGY STAR

®

Qualified.

FEATURES

APPLICATIONS

Fully programmable thermostat provides universal
system compatibility, precise comfort control and easy
programmability.
Provides temperature control for gas, oil, electric and heat
pumps for up to 4 heat / 2 cool multi−stage systems
(includes dual fuel operation).

TOUCHSCREEN DISPLAY

Home Screen

− Large display of indoor temperature

− Current heating setpoint temperature (SET AT HEAT)

− Current cooling setpoint temperature (SET AT COOL)

NOTE − Both setpoint temperatures and adjustment arrows are

displayed if System is set to Auto mode

.

− Raise / Lower temperature settings (Up / Down Arrows)
for temporary override

− Outdoor temperature (Outdoor)

(with optional remote Outdoor Temperature Sensor)

− Cooling or Heating mode or other System modes

− Day of Week, Month and Day and Time of Day

NOTE − Information in this area changes depending on thermostat
configuration and user interface (scheduling, indoor humidity, hold
settings, service reminders, etc.)

.

− MODE (system) area
(HEAT / COOL / AUTO / OFF / EM HEAT)

− FAN mode area
(ON / AUTO / CIRC)

− SCHED (Schedule) mode area

− (ON / OFF)

Temperature Overrides

During SCHED ON user can temporarily override the
program schedule as desired by time and date.
User can maintain existing heat/cool temperatures or
adjust them as needed (in one degree increments) using
the Up / Down arrows on the Home screen.
User can also select how long to to hold temperatures by
time (in ten minute increments) and calendar date. Default
is three hours.
SCHED OFF maintains current setpoints indefinitely.

Schedule Screen

− Current heating setpoint temperature (SET AT HEAT)

− Current cooling setpoint temperature (SET AT COOL)

− Raise / Lower temperature settings (Up / Down Arrows)

− Up / Down arrows for adjusting time

− Each day of week (MON . . . SUN)

− Schedule periods (WAKE / LEAVE / RETURN / SLEEP)

− Fan (ON / AUTO / CIRC)

− Edit schedule settings (CANCEL / EDIT)

− Advance to next setting (NEXT)

− Save schedule changes (SAVE)

Schedule Periods (WAKE / LEAVE / RETURN / SLEEP)

7 day programming.
Individual programming for each day of the week or by
specific groups of days:

− Monday through Sunday (7 individual days)

− Monday through Friday + Saturday and Sunday (5 + 2)

− Monday through Sunday (All days have same program)

NOTE − Individual days within a group of days can also be changed if

.

required

2 or 4 schedule periods per day (see User Settings).
Schedule times are spaced in 10 minute intervals.
Fan setting can also be programmed for ON, AUTO or
CIRC operation for each period.

Fan Modes

Fan Modes can be changed directly from the Home
screen or on the Schedule screen (as part of thermostat
programming).
User can select three different Fan" modes:

1. Auto Fan operates only when equipment is operating

and follows a schedule.

NOTE − In AUTO mode, fan can operate in AUTO mode, ON mode or
CIRC mode if it is programmed as such for the current schedule.

2. On Fan runs continuously for improved air circulation.

3. Circ Intermittent fan operation when equipment is not

operating. Fan operates for a programmed percentage
of time per hour.
Fan is adjustable to 15%, 25%, 35%, 45% for improved
air circulation.

Fan Circulation Times:

− 15% − 9 minutes on per hour.

− 25% − 15 minutes on per hour.

− 35% − 21 minutes on per hour (default).

− 45% − 27 minutes on per hour.
NOTE − Fan can be set to operate at any of the 3 modes
above during any programmed schedule.

ComfortSenseE 7000 Touchscreen Thermostat / Page 2

FEATURES

TOUCHSCREEN DISPLAY (CONTINUED)

Options Screen

− Maintenance reminders (REMINDERS)

− User configuration (USER SETTINGS)

− Installer configuration (INSTALLER SETTINGS)

− Clean screen button (CLEAN)

Reminders

Reminders notify user when routine maintenance is
required.

− Filter Media (REPLACE FILTER MEDIA)

− Ultraviolet Lamp (REPLACE UV LAMP)

− Humidifier Pad (REPLACE HUM PAD)

− System Maintenance (ROUTINE SYS CHECK−UP)

− PureAir™ Maintenance (REPLACE METAL INSERT)

−(REMINDERS) See Installer Settings
Two custom reminders can also be set (see Installer
Settings)
User can turn on and off individual reminders (default is
OFF).
Reminders can be set to chronological time or equipment
run time from 1 to 24 months.
Reminders can be reset (snooze) at any time.
Reminders that are due are displayed on the HOME
screen.
In case of power interruption:

− If the lithium battery is charged, the chronological time

or total accumulated equipment run time (depending
on reminder setting) is maintained.

− If the lithium battery is not charged, due dates for

reminders are maintained.

Touchscreen Cleaning

Pressing CLEAN locks the thermostat for 30 seconds to
allow cleaning of the screen.
A countdown shows remaining time left.

SPECIFICATIONS

NOTE − For use with residential equipment only.

Order No. − Y0349
Temperature Setting Range

Heating − 45 to 90°F
Cooling − 45 to 99°F

Humidity Settings

− Operating range − 10 to 90% relative humidity

− Humidity setpoint (Humidification mode) − 10 to 45%
relative humidity

− Humidity setpoint (Dehumidification mode) − 35 to 60%
relative humidity

Power Supply

24VAC (18 to 30VAC maximum), 60Hz

Clock Accuracy

± 10 minutes per year

Terminals

4 heat / 2 cool multi−stage
R, H, W1, W2, O, L, Y1, Y2, G, D, B, C, T, T

Dimensions (H x W x D)

5−7/8 x 8−1/2 x 1−1/4 in. (149 x 216 x 31 mm)

Backup

Non−volatile memory maintains all programming in the
event of a power outage.
Lithium battery (furnished) provides backup for
chronological (clock) time in case of power failure.

OPTIONS

Outdoor Temperature Sensor

When installed outdoors, sensor
(X2658) allows thermostat to display
outdoor temperature.
NOTE − Sensor is required for dual fuel
operation if thermostat controls dual
fuel system operation. Also required

®

with Humiditrol

applications and

Humidity Settings / Humidity / Dewpoint

operation (see Installer Settings).

ComfortSenseE 7000 Touchscreen Thermostat / Page 3