CONTROLS TOUCHSCREEN COMFORTSENSE® 7000 7-Day Programmable Thermostat E N G I N E E R I N G D ATA Bulletin No. 210515 June 2009 Supersedes February 2008 HOME SCHEDULE OPTIONS SET AT MODE HEAT AUTO SET AT ON COOL SCHED INDOOR RH 26% WED AN 21 12:35AM 4 Heat / 2 Cool Universal Multi−Stage MODEL NUMBER IDENTIFICATION L7742U Brand L = Lennox System Type U - Universal Compatibility Series 7 = Digital Programmable Touchscreen Programming 7 - 7 Day Cooling Stages 2 = Two Stages Heating Stages 4 = Four Stages 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® Enhanced Dehumidification Accessory (EDA), and equipment 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. •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. ENERGY 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 COOLING FRI OCT 23 1:15PM •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 •Compressor short-cycle protection (WAIT) •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, dealer information, etc.). •MODE (system) area (HEAT / COOL / AUTO / OFF / EM HEAT) •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. ComfortSense® 7000 Touchscreen Thermostat / Page 2 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. FEATURES TOUCHSCREEN DISPLAY (CONTINUED) REMINDERS USER SETTINGS Options Screen •FAN mode area (ON / AUTO / CIRC / AUTO / ON) •Maintenance reminders (REMINDERS) •User configuration (USER SETTINGS) •Installer configuration (INSTALLER SETTINGS) •Clean screen button (CLEAN) Fan Modes Fan Modes can be changed directly from the Home screen or on the Options screen. 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. 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 (PUREAIR MAINTENANCE) •(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. SPECIFICATIONS NOTE - For use with residential equipment only. Order No. - Y2081 Temperature Setting Range •Heating - 45 to 90°F •Cooling - 50 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. Sensor is auto-detected when connected to thermostat. 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). ComfortSense® 7000 Touchscreen Thermostat / Page 3 FEATURES User Settings DATE / TIME •Set Month, Day, Year, Hour and Minute F/C •Fahrenheit (default) or Celsius 12 OR 24 HOUR •12 (default) or 24 hour clock EVENTS DAILY 2 OR 4 •Number of schedule periods (default 4) per day VIEW CONTACT INFO •Displays dealer informaation DISPLAY INFO (View alternates) •OUTDOOR TEMP Information display shows outdoor temperature if equipped with Optional Outdoor Temperature Sensor (default is off) •INDOOR RH Indoor Relative Humidity (default is off) •CONTACT INFO HUMIDITROL ADJUST •MAX, MID, MIN (if equipped) • MIN - 2°F below the cooling setpoint • MAX - 2°F above the heating setpoint • MID - halfway between MIN and MAX FAN CIRCULATE •See Fan Modes on previous page for % settings available COOLING LIMIT •Cooling Limit, 45°F (default) adjustable (45 to 90°F) HEATING LIMIT •Heating Limit, 90°F (default) adjustable (90 to 45°F) SECURITY LOCK •Prevents tampering with thermostat settings, 3-digit security code HUMIDITY SETTING •Humidity setpoint 45% (default), adjustable (15% to 45%) •Dehumidify setpoint 50% (default), adjustable (45% to 60%) BACKLIGHT SETTINGS •Power save (default) or continuous BACKLIGHT INTENSITY •100% (default) adjustable (20 to 100%) ComfortSense® 7000 Touchscreen Thermostat / Page 4 FEATURES Installer Settings SYSTEM SETUP NON HEAT PUMP (default) •Gas / Oil (Default) •Electric •No Heat HEAT PUMP •Dual Fuel (Gas / Oil) •Electric •No Backup Heat COMPRESSOR STAGES (1 default or 2) INDOOR HEAT STAGES (1 default or 2 Stages) OUTDOOR SENSOR •YES or NO (default) RESIDUAL COOL •0 (default), 30, 60, 90, 120 seconds LOW BALANCE POINT (Multi-stage Heat Pump) •25°F (default), adjustable (-20°F to high balance point) HIGH BALANCE POINT (Multi-stage Heat Pump) •50°F (default), adjustable (Low balance point to 75°F) DEADBAND •4°F (default), adjustable (3 to 8°F) SMOOTH SETBACK RECOVERY •Off (default) or On SMOOTH SETBACK RECOVERY STAGE 2 LOCKOUT •20 min. (default), adjustable (20 to 120 minutes) HUMIDITY SETTING HUMIDIFY •Off (default), Dewpoint, Precision, Basic, adjustable (15 to 45%) 45% default setting DEHUMIDIFY •Off (default), Humiditrol, Precision, Basic, adjustable (45 to 60%) 50% default setting NOTE - Dewpoint and Humiditrol settings are only available with optional remote Outdoor Temperature Sensor STG DELAY TIMERS •On (default) or Off STG 1 DIFF •1.0°F (default), adjustable (0.5 to 8.0°F) STG 2 DIFF •0.5°F (default), adjustable (0.5 to 8.0°F) STG 2 DELAY •20 min. (default), adjustable (5 to 120 minutes) STG 3 DIFF •0.5°F (default), adjustable (0.5 to 8.0°F) STG 3 DELAY •20 min. (default), adjustable (5 to 120 minutes) STG 4 DIFF •-0.5°F (default), adjustable (0.5 to 8.0°F) STG 4 DELAY •20 min. (default), adjustable (5 to 120 minutes) H/C STGS LOCKED IN •YES or NO (default) turns heating stages off separately STG 2 HP LOCK TEMP •OFF (default) for dual fuel (lock out 2nd stage compressor) applications, adjustable (-45 to 75°F) DAYLIGHT SAVINGS •On (default) or Off CONTACT INFORMATION •2 lines of up to 19 alphanumeric characters CUSTOM REMINDER1 CUSTOM REMINDER2 •User defined reminders can be a custom text message (up to 19 alphanumeric characters) •Also displays dealer information RESET SETTINGS •Restores thermostat to original factory settings NOTE - A “hard” reset option is also available. See Programming and Application Guide. ENERGY STAR DEFAULT •Sets thermostat to conform to EPA ENERGY STAR® recommended setpoints. WAKE - 6 AM, 70°F Heat, 78°F Cool LEAVE - 8 AM, 62°F Heat, 85°F Cool RETURN - 5 PM, 70°F Heat, 78°F Cool SLEEP - 10 PM, 62°F Heat, 82°F Cool TEMPERATURE OFFSET •0°F (default), adjustable (-5 to 5°F). Offset displayed temperature ± 5°F. HUMIDITY OFFSET •0% (default), adjustable (-10 to 10%) COMPRESSOR PROTECT •On (default) or Off SYSTEM TEST MODES Installer run tests to check all cooling, heating, emergency heating and fan outputs. Tests confirm signals between thermostat and unit are being sent and received. TEST OUTPUTS •OFF •Y1 ON •Y2 ON •Y2 OFF •W1 ON •W1 OFF •W2 ON •W2 OFF •FAN (G) ON •FAN (G) OFF •H ON •H OFF •D ON •D OFF •O ON (B OFF) •B ON (O FF) ComfortSense® 7000 Touchscreen Thermostat / Page 5 REVISIONS Product New catalog number - Y2081 Redesigned case Fan button moved to “Options” tab Dealer contact information can now scroll on the home screen Dealer info “button” when a reminder expires Visit us at www.lennox.com For the latest technical information, www.lennoxdavenet.com Contact us at 1-800-4-LENNOX NOTE - Due to Lennox’ ongoing commitment to quality, Specifications, Ratings and Dimensions subject to change without notice and without incurring liability. Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury. Installation and service must be performed by a qualified installer and servicing agency. ©2009 Lennox Industries, Inc.
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