Installation And Setup Guide - Lennox
Installation and SetupGuideColor TouchscreenProgrammable ThermostatComfortSense 7500Model: 13H14507504-025/2017Supersedes 507504-01
IMPORTANTWARNINGRead this manual before programming the ther mostat.Use this thermostat only as described in this man ual.This product contains a chemical known to theState of California to cause cancer, birthdefects, or other reproductive harm.Shipping and Packing ListComfortSense 7500 , 7-day programmabletouchscreen thermostat with back plate2 - Mounting screws (M3.5x25mm self-tappingscrews)2 - Wall anchors1 - Wall plate1 - Warranty certificate1 each - Homeowner and Installer GuidesNOTE - This thermostat is equipped withautomatic compressor protection to preventpotential damage due to short cycling or extendedpower outages. The short-cycle protectionprovides a 5-minute delay between heating orcooling cycles to prevent the compressor frombeing damaged.1-TABLE OF CONTENTSShipping and Packing List . . . . . . . . . . . . . . . . . . . . .2Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Humidify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Dehumidify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Unit Part (Catalog) & Serial Numbers . . . . . . . . . . . . 42Memory Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 43User Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432
OverviewDescriptionThe ComfortSense 7500 thermostat is e touch screen thermostat. It alsooffers enhanced capabilities which include: humidification measurement and control, dew point adjustment control, dehumidification measurement and control, Humiditrol Enhanced DehumidificationAccessory (EDA) capability,Dimensions (H x W x D)Case dimensions: 3-5/16 x 4-5/16 x 7/8 in. (84 x110 x 22mm)Wall Plate Dimensions (H x W)Plate dimensions: 4-1/2” x 5-3/4” (114 x 146mm)Compressor Short-Cycle ProtectionA 5-minute compressor short-cycle protectiontimer begins when a compressor output isde-energized. Also, if a power loss occurs, thesystem will go into compressor protection modeand display “waiting” next to either a snow flakeicon (compressor cooling), or flame icon(compressor heating) in the display.Outdoor Sensor (Optional) equipment maintenance reminders, worry-free memory storage feature,IMPORTANT menu-driven touch-screen display.This thermostat supports heat pump or non-heatpump units, with up to two stage heat pump andtwo auxiliary stages or two stages of heating andtwo stages of cooling.The outdoor sensor must be connected to oper ate a system with a Humiditrol accessory.An optional (purchase separately) outdoor sensor(X2658) is required for dual-fuel applications,3
outdoor temperature display on the home screen,balance points, dew point humidity control, andwith Humiditrol EDA.IMPORTANTIn all applications, the ComfortSense Model7500 thermostat can only be used with allresidential units and approved commercialsplit‐system matches, and those which meetthe following installation criteria: installation uses 18 GAUGE thermostatwire or larger, thermostat wire run length DOES NOTEXCEED 300' (91m), load from any thermostat connection is 1AMP or LESS.In addition to measuring and displaying outdoortemperature, the outdoor sensor provides dewpoint adjustment and control for all models. If usedwith this thermostat, the sensor enables optimalheating equipment operation via programmablebalance points.NOTE - For proper operation of Humiditrol EDAapplications, the outdoor sensor (X2658) MUSTbe installed.Refer to page 11 for remote sensor installation andthermostat setting configuration.WARNINGImproper installation, adjustment, alteration,service or maintenance can cause propertydamage, personal injury or loss of life.Installation and service must be performed by alicensed professional HVAC installer (or equiv alent) or service agency.Figure 1. Outdoor Sensor4
CAUTIONThis is a 24VAC low-voltage thermostat. Do notinstall on voltages higher than 30VAC.Do not short (jumper) across terminals on thegas valve or at the system control to test instal lation. This will damage the thermostat and voidthe warranty.WARNINGAlways turn off power at the main power sourceby switching the circuit breaker to the OFF posi tion before installing or removing this thermo stat.All wiring must conform to local and nationalbuilding and electrical codes and ordinances.InstallationBefore beginning installation, note the type ofequipment, number of stages, and anyaccessories being installed. This thermostat is a24VAC low-voltage thermostat and requires acommon wire to the thermostat to operate.DO Shut off all power to system before installing. Read this entire document, noting whichinstructions pertain to your equipment andsystem requirements. Make sure that all wiring conforms to localand national building and electrical codes andordinances. Use thermostat wire between the thermostatand the optional outdoor temperature sensor(may be separate wire pair or two wires of amulti-wire cable). Ensure load from any thermostat connectionis less than 1 AMP.DO NOT Install on voltages higher than 30VAC. Short (jumper) across terminals on the gasvalve or at the system control to testinstallation. This will damage the thermostatand void the warranty. Install on outside walls or in direct sunlight.5
Exceed thermostat wire run length greaterthan 300 feet (91m).INSTALLING THERMOSTAT1. Unpacked the thermostat and open the casewith a thin-blade screwdriver. Place betweenwall base and unit and twist to separate unitfrom base.2. Select a location for the thermostat about 5feet (1.5m) above the floor in an area withgood air circulation at average temperature.3. Do not install the thermostat where it can beaffected by: Drafts or dead spots behind doorsand in corners. Not close to entrance or automaticdoors Not close to heat generatingequipment such as kitchen equipment Not in an enclose environment unlessa remote indoor sensor is used.Hot or cold air from ducts.Radiant heat from sun or appliances.Concealed pipes and chimneys.Non-heated (non-cooled) areas suchas an outside wall behind thethermostat.Figure 2. Removing Back Plate6
4. Use steps A through J (step J applicablewhen using provided wall plate) to install thethermostat.PULL ABOUT 3” OF THERMOSTATWIRE THROUGH OPENING AND RE MOVE OUTER THERMOSTAT WIREJACKET.CUT OR DRILL A SMALL HOLEFOR THERMOSTAT WIRINGTHIS WILL HELP INROUTING THE THER MOSTAT WIRING TOTHE PROPER THER MOSTAT TERMINALSA¾” x ¾”B7
CTRIM 1/4” INSULATION FROMEND OF EACH WIRE(USE A LEVEL) ALIGN WALL PLATE1/4”DDRILL 3/16” HOLES AT MARKED LOCATIONSON WALL FOR ANCHORSEUSE UNIT WALL PLATE AS TEMPLATE TO MARKDESIRED MOUNTING HOLE LOCATIONS ON WALL.NOTE: INSTALLATION OF WALL PLATE ISOPTIONAL.8
Thermostat Installation with Wall PlateF - Place wall plateover holes in wall.H - Attach back plateto wall plate.G - Insert wall anchorsthrough wall plate into wall.J - Attach thermostat toback plate.I - Insert provided screws through back and wallplates into wall anchors.Thermostat Installation without Wall PlateI - Attach thermostat toback plate.G - Place back plate over wallanchors in wall.F - Insert wall anchorsthrough wall plate into wall.H - Insert provided screws throughback plate into wall anchors.9
WIRING THERMOSTATTERMINAL DESIGNATIONSThermostat wiring connections with various units,including dual fuel, zone control, and applicationsthat include the Humiditrol EnhancedDehumidification Accessory (EDA). See figures 3through 7. For whole home dehumidifier, refer tothe installation instruction for the dehumidifier.1. Connect wiring between thermostat, indoorunit, and outdoor unit as shown in theappropriate wiring diagram.2. Connect optional (purchase separately)outdoor sensor. See Installing OutdoorSensor for further details and provided wiringdiagrams.3. Seal the hole in the wall with a suitablematerial to prevent drafts from entering thethermostat case.4. Configure thermostat and equipment forsystem type, program the thermostat, andtest system.Tc To H-Outdoor Temp. Sensor Connection 1Outdoor Temp. Sensor Connection 2Humidification relay (to Humidifier)D-Dehumidification relay (to DS terminal)W2 - Second-stage heating (non-heat pump) or 4thstage (heat pump)Y2 OBCGW1 -Second-stage heating or coolingCool active reversing valveHeat active reversing valveCommon 24VACFan relayFirst-stage heating (non-heat pump oremergency heat) or third-stage heating(heat pump)Y1 - First-stage heating or coolingR - 24VAC power10
Installing and Displaying OutdoorTemperature on Home ScreenInstall the optional (purchase separately) outdoorsensor (X2658) on a northern wall of the home,away from direct sunlight or other heat sourcesthat may affect its sensitivity.NOTE - The outdoor sensor uses standardthermostat wiring; it may be wired using two wiresof a multi-wire cable with a wire run not to exceed300 feet or 100 meters.1. Connect outdoor sensor to terminals Tc andTo on thermostat.2. To enable the outdoor sensor go to menuand touch settings and hold until the installersettings pop-up window appears.3. Touch confirm to proceed.4. From the installer settings menu, selectoutdoor sensor and select yes. A greencheck mark will appear next to the selectionthat confirms selection.5. To display the outdoor temperature sensorinformation on the home screen, from thehome screen go to menu and touchsettings. This will take you to the usersetting screen. Select display and selectoutdoor temperature display and thenselect sensor.NOTE - If the outdoor sensor is connected to thethermostat after the above procedure iscompleted and error code 9 appears on thescreen, check your wiring connections toterminals TO and TC on the thermostat.11
Figure 3. Enhanced Dehumidification Accessory Typical Wiring Diagram12
ToTcToTcFigure 4. CBX32MV-XXX-230-06 or Higher and CBX40UHV Wiring Diagrams(Condensing Unit Applications)13
ToTcToTcFigure 5. CBX32MV-XXX-230-06 or Higher and CBX40UHV Wiring Diagrams(Heat Pump Unit Applications)14
WHEN 2-STAGE HEAT IS USED, THERMOSTAT ISCONFIGURED FOR MULIT-STAGE HEAT, CONNECTTHERMOSTAT W2 TO AIR HANDLER W2 ANDREMOVE JUMPER BETWEEN R AND W2.CBX25UH AND CBX25UHV DO NOT HAVE TERMINALSTRIPS IN UNIT.FOR HUMIDIFIER, 48G95 OR EQUIVALENTISOLATION RELAY REQUIRED - 24VAC, 5VA MAXCAN BE USED WITH ALL THERMOSTATAPPLICATIONS.CUT ON-BOARD LINK FORM DS-TO-R (W914CLIPPABLE CONNECTION ON FURNACE / JUMPERON AIR HANDLER) WHEN DEHUMIDIFICAITON ORHARMONY CONTROL IS USED.FOR 2-STAGE CUT ON-BOARD LINK FROM Y1-TO-Y2(W915 CLIPPABLE CONNECTION ON FURNACE /JUMPER ON AIR HANDLER).DO NOT CUT -ON-BOARD LINK FORM R-TO-O (W951CLIPPABLE CONNECTION ON FURNACE / JUMPERON AIR HANDLER) WHEN IT IS USED FORCONDENSING UNIT APPLICATIONS.CUT ON-BOARD LINK FROM R-TO-O (W951CLIPPABLE CONNECTION ON FURNACE / JUMPERON AIR HANDLER).K183 DEHUMIDIFICATION RELAY KIT (26W62)REQUIRED WHEN USING D-TO-DS TERMINALSWITH CBX27 UNITS.NOTE: NOT ALL UNUSED TERMINALS ARE SHOWNON THE THERMOSTAT DIAGRAMS.REMOVE DS-TO-Y1 JUMPER WHENDEHUMIDIFICATION D TERMINAL IS USED.OUTDOOR SENSOR FOR OUTDOOR TEMPDISPLOAY, OPTIONAL HUMIDIFIER DEW POINTCONTROL, HEAT PUMP BALANCE POINTS ANDDUAL-FUEL BALANCE POINTS.Figure 6. Key for Figures 7 through 11.15
CB30 and CBX32MML180, ML193, ML195, EL180E,EL195E, ELO183, SLO185TSTATTSTATML180, ML193, ML195,EL180E, EL195E, ELO183,SLO185TSTATToTcFigure 7. Thermostat Wiring Diagrams (continued)16
ML180, ML193, ML195,EL180E, EL195E,ELO183, SLO185CBX25UH, CBX25UHV, CBX32MVTSTATTSTATFigure 8. Thermostat Wiring Diagrams (continued)17
EL280PTSTATEL296E, EL296V, SL280VTSTATToToTcTcFigure 9. Thermostat Wiring Diagrams (continued)18
TATTSTATToToTcTcFigure 10. Thermostat Wiring Diagrams (continued)19
ML180, ML193, ML195,EL180E, EL195E,ELO183, SLO185EL296E, SL280V,EL296V, SLP98TSTATTSTATToToTcTcFigure 11. Thermostat Wiring Diagrams (continued)20
MENU1. Touch menu option from the home screen.System Settings2. Touch and hold the settings option on themenu. This will display the installer settingsnotice and then menu. You may be asked foran access code. The factory default accesscode is 864.menunotifications13performance report installer settingsinstaller settings must be setby qualified person.edit schedulesconfirmsettingsFigure 12. Menu ScreenFigure 13. Installer Menu ScreenConfirmation21
SYSTEM SETUPBalance Point, then heat pump heating is notallowed and only backup heat will be used.Sets the thermostat for operation with either anon-heat pump or heat pump and defines thenumber of compressor stages. Indoor unitsettings include no heat, gas/oil or electric andnumber of indoor heat stages.2. When in heat mode and the outdoortemperature is above the programmed HighBalance Point, then heat pump heating isallowed and backup heat will not be used.OUTDOOR SENSOROptions are yes or no (default).3. When in heat mode and the outdoortemperature is between the programmedLow and High Balance Points, then heatpump heating and backup heat can be used.RESIDUAL COOLDefault is 0 seconds. This is the time, in seconds,that the fan runs after a call for cooling is satisfiedin order to deliver any residual cooling ability fromthe coil and ductwork into the conditioned space.Options are 0, 30, 60, 90 and 120 seconds. Touch to return to previous menu.4. Options are enable or disable. Default forboth is disable. Once enabled, the followingsettings are available.5. Low Balance Point Default is 25 F.Adjustable range is -40 F to 48 F.LOW AND HIGH BALANCE POINTS6. High Balance Point Default is 50 F.Adjustable range is -38 F to 75 F.These balance points are for heat pump systemsonly with an outdoor sensor installed and enabledplus a indoor unit setting enable. Either gas/oil orelectric will enable the balance point options in theinstaller settings list.1. When in heat mode and the outdoortemperature is below the programmed LowNOTE - The high balance point minimumrange is adjustable to within 2 F of the lowbalance point setting. For example, if the lowbalance point is set to 0 F, then the lowestsetting for the high balance point is 2 F.22
DEADBANDDefault is 2 F. The deadband setting is theminimum difference between the cooling andheating set points. This setting is used in cool/heatmode to ensure smooth equipment operation. Thedeadband is adjustable from 2 to 9 F. Use the or option to select desired deadband. Touch toreturn to previous menu.SMOOTH SET RECOVERY(SSR)Options are enable or disable. Default is enable.When enabled, smooth set recovery beginsrecovery up to two hours before the programmedtime so that the programmed temperature isreached at the corresponding programmed eventtime. Assume 12 F per hour for first stagegas/electric heating and 6 F per hour for first stagecompressor based heating or cooling. WithSmooth Set Recovery disabled, the control willstart a recovery at the programmed time.NOTE - Smooth Set Recovery and Stage2 LockOut operations vary depending on equipment (seetable 1).SSR STAGE 2 LOCK OUTDefault is 20 minutes. Use the or - option to setthe number of minutes before the programmedevent time that stage 2 is allowed to operate (20 to120 minutes in 10 minute increments). Touch toreturn to previous menu. This setting is ignoredwhen SSR is disabled.DEALER INFORMATIONThis allows the installer to add dealer name,address, phone, email, website and number.Touch to return to previous menu.TEMPERATURE OFFSETDefault is 0 F. This setting can be used to offsetthe displayed space temperature by up to /- 5 F.This offset also applies to the control temperature.Touch to return to previous menu.HUMIDITY OFFSETDefault is 0%. This can be used to offset thedisplayed and controlled space relative humidity(RH) by up to /- 10% RH. Touch to return toprevious menu.23
Table 1. Smooth Set Recovery (SSR) & SSR Stg 2 Lock Out OperationEquipment AvailableSingle-stage heat pumpwith one or two stagesof electric backupTwo-stage heat pumpwith one- or two-stagesof electric backupSingle-stage heat pumpwith single-stage gas oroil backupWhen SSR is enabled then SSRStage 2 lock out is enabled. Canbe set between 20 and 120minutes. Default is 20 minutesWhen SSR is disabled then SSR Stg 2lock-out setting is disabled. Run heat pump (Y1) onlyAll backup heat (W1/W2) isenabled and SSR Stage 2Lock Out is set between 20 120 minutes before thewake-up set point.Run heat pump (Y1) and will haveavailable backup heat (W1/W2) asneeded. Run heat pump (Y1/Y2) only.All backup heat (W1/W2) isenabled and SSR Stage 2Lock Out is set between 20 120 minutes before thewake-up set point.Run heat pump (Y1/Y2) and will haveavailable backup heat (W1/W2) as need ed. Run heat pump (Y1) onlyAll backup heat (W1) is en abled and SSR Stage 2 LockOut is set between 20 - 120minutes before the wake-upset point. 24 Run heat pump (Y1) until a secondstage heating demand is neededwhich is determined by the time /temperature differential.Heat pump operation will stop andgas or oil heat will start.Changeover and lock-in to W1 heatwill occur until set point reached.
Equipment AvailableWhen SSR is enabled then SSRStg 2 lock out is automaticallyenabled.When SSR is disabled then SSR Stg 2lock-out setting is disabled. Single-stage heat pumpwith: Two-stages of gasor oil backup Modulation furnaceTwo-stage heat pumpwith one stage gas/oilbackup Run heat pump (Y1) onlyAll backup heat (W1/W2) isenabled and SSR Stage 2Lock Out is set between 20 120 minutes before thewake-up set point. Run heat pump (Y1/Y2) only.All backup heat (W1/W2) isenabled and SSR Stage 2Lock Out is set between 20 120 minutes before thewake-up set point.25 Run heat pump (Y1) until a secondstage heating demand is neededwhich is determined by the time /temperature differential.Heat pump operation will stop andchangeover to W1/W2 heat as need edLock-in W1/W2 heat until set point isreached.Run heat pump (Y1/Y2) until asecond-stage demand is neededwhich is determined by the time /temperature differential.Heat pump operation will stop andgas or oil heat will start.Changeover and lock-in to W1 heatwill occur until set point is reached
Equipment AvailableTwo-stage heat pumpwith: Two-stages of gasor oil backup Modulation furnaceWhen SSR is enabled then SSRStg 2 lock out is automaticallyenabled. Run heat pump (Y1/Y2).All backup heat (W1/W2) isenabled and SSR Stage 2Lock Out is set between 20 120 minutes before thewake-up set point.When SSR is disabled then SSR Stg 2lock-out setting is disabled. Run HP (Y1/Y2) until a second-stagedemand is needed which is deter mined by the time / temperature dif ferential.Heat pump operation will stop andchangeover and lock-in to W1/W2heat until set point is reached.Two stages of gas/oilheat or modulationfurnaceRun W1 only; W2 is enabled andSSR Stage 2 Lock Out is set be tween 20 - 120 minutes beforethe wake-up set point.Run W1 heat and bring on W2 heat untilset point is reached.Single stage coolingRun Y1 to wake up set point.Run Y1 heat until set point is reached.Single stage coolingRun Y1 during recovery and en able Y2 field wake up set point.Run Y1 and Y2 heat as needed until setpoint is reached.26
STAGE DELAY TIMERSTAGE 2 THROUGH 4 DIFFDefault is ON. When ON, all stage delay timers(stages 2, 3, and 4) are enabled and will serve tobring on additional stage(s) of cooling or heatingon a timed basis (default 20 minutes) in caseswhen the previous stage of heating or cooling willnot raise or lower the room temperature to the setpoint in a given time.(Where applicable) The default is 1.0 F but can beprogrammed between 0.5 and 8.0 F in 0.5 Fincrements. Touch to return to previous menu.When OFF is sele
pump units, with up to two stage heat pump and two auxiliary stages or two stages of heating and two stages of cooling. Dimensions (H x W x D) Case dimensions: 3-5/16 x 4-5/16 x 7/8 in. (84 x 110 x 22mm)
The Lennox icomfort Touch thermostat must be used in communicating application In non icomfort applications, the Lennox ComfortSense 7000 thermostat may be used, as well as other non communicating thermostats. In all cases, setup is critical to ensure proper system operation. Field wiring examples for non icomfort applications begin .
A Lennox iComfort thermostat must be used in com municating applications. In non-communicating applications, the Lennox ComfortSense 7000 thermostat may be used, as well as other non-communicating thermostats. In al lcases, setup is critical to ensure proper system op eration. Field wiring for both communicating and non-
Lennox worked its way into the residential air conditioning market in 1952, and has grown to be a world leader in the HVAC business. Lennox has made great strides in building firsts like the Pulse furnace that produced efficiencies over 90% and 2 speed condensers that attained 15 SEER.
Mini-Split Systems can be controlled by the Lennox VRF Central Controller for complete, seamless integration. All mini-split systems are tested and rated in accordance with ANSI/AHRI Standard 210/240. Cooling ratings, 95 F (35 C) outdoor air temperature and 80 F (27 C) db/67 F (19 C) wb entering indoor coil air.
Split Air Conditioner Thank you for selecting LENNOX air conditioners.Please read this manual carefully before operation and keep it for further reference. OWNER'S MANUAL LENNOX AIRCONDITIONERS MODEL: LM018CI-100P232-1X LM018CO-100P232-1X LM024CI-100P232-1X LM024CO-100P232-1X
BACK to return SUBWOOFER SETUP SW limiter.: dB Increase limiter level using VOL buttons. Press ENTER just before the subwoofer is clipping. press BACK to cancel. MAIN MENU Digital audio.: menu Input setup.: menu System setup.: menu Speaker Setup.: menu Delay Setup.: menu Balance Setup.: menu Subwoofer Setup: menu ENTER to enter menu
The Lennox icomfort Touch thermostat must be used in communicating applications. In non communicating applications, the Lennox ComfortSense 7000 thermostat may be used, as well as other non communicating thermostats. In all cases, setup is critical to ensure proper sys-tem operation. Field wiring for both communicating and non com-
Computer Setup Guide 3 Computer Setup Using Computer Setup Utilities To access the Computer Setup Utilities menu, complete the following steps: 1. Turn on or restart the computer. If you are in Windows, click Start Shut Down Restart the Computer. 2. When the F10 Setup message is displayed in the lower-right corner of the screen, press the .
