Installation and Setup Guide - Lennox

1 Installation and SetupGuideColor TouchscreenProgrammable ThermostatComfortSense 7500 (13H14)2 Table of ContentsShipping and Packing 7500 InstallationMounting SettingsMenu (Installer Settings) Part (Catalog) and Serial A. Flow B. Diagnostic C. Supported D. Installer and Packing List1 - ComfortSense 7500 touchscreen, 7-dayprogrammable thermostat and back plate2 - Mounting screws ( 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 this manual before programming the ther this thermostat only as described in this man 7500 Thermostat (CatalogNo.)

2 13H14)DescriptionThe ComfortSense 7500 thermostat is anelectronic 7-day universal multi stageprogrammable 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, equipment maintenance reminders, worry-free memory storage feature, menu-driven touch-screen 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 (H x W x D)Case dimensions: 3-5/16 x 4-5/16 x 7/8 in. (84 x110 x 22mm)FeaturesCompressor Short-Cycle ProtectionA 5-minute compressor short-cycle protectiontimer begins when a compressor output isde-energized.

3 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 Temperature SensorAn outdoor temperature sensor (X2658) isrequired for dual fuel applications, balance points,dew point humidity control, and with Humiditrol 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 - The outdoor sensor uses standardthermostat wiring; it may be wired using two wiresof a multi-wire the outdoor sensor is connected, theoutdoor temperature on the home screen can - For proper operation of Humiditrol EDAapplications, the outdoor sensor (X2658) MUSTbe 1.

4 outdoor SensorFor detail Installation requirements andprocedure, refer to the instruction provided withthe outdoor sensor must be connected to oper ate a system with a Humiditrol Remote outdoor SensorInstall the remote outdoor sensor on a northernwall of the home, away from direct sunlight or otherheat sources that may affect its Installation , adjustment, alteration,service or maintenance can cause propertydamage, personal injury or loss of and service must be performed by alicensed professional HVAC installer (or equiv alent) or service is a 24 VAC low-voltage thermostat. Do notinstall on voltages higher than not short (jumper) across terminals on thegas valve or at the system control to test instal lation. This will damage the thermostat and voidthe 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.

5 Installation uses 18 GAUGE thermostatwire or larger, thermostat wire run length DOES NOTEXCEED 300' (91m), load from any thermostat connection is 1 AMP or turn off power at the main power sourceby switching the circuit breaker to the OFF posi tion before installing or removing this thermo wiring must conform to local and nationalbuilding and electrical codes and INSTALLATIONB efore beginning Installation , note the type ofequipment, number of stages, and anyaccessories being installed. This thermostat is a24 VAC low-voltage thermostat and requires acommon wire to the thermostat to Shut off all power to system before installing. Read this entire document, noting whichinstructions pertain to your equipment andsystem requirements.

6 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 NOT Install on voltages higher than 30 VAC. 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. 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 Select a location for the thermostat about 5feet ( ) above the floor in an area withgood air circulation at average Do not install the thermostat where it can beaffected by: Drafts or dead spots behind doorsand in 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.

7 Hot or cold air from ducts. Radiant heat from sun or appliances. Concealed pipes and chimneys. Unheated (uncooled) areas such asan outside wall behind the 2. Removing Back Plate4. Use steps A through J (step J applicablewhen using provided wall plate) to install OR DRILL A SMALL HOLEFOR THERMOSTAT WIRING x ABPULL ABOUT 3 OF THERMOSTATWIRE THROUGH OPENING AND RE MOVE OUTER THERMOSTAT WILL HELP INROUTING THE THER MOSTAT WIRING TOTHE PROPER THER MOSTAT TERMINALS81/4 TRIM 1/4 INSULATION FROMEND OF EACH WIRECUSE UNIT WALL PLATE AS TEMPLATE TO MARKDESIRED MOUNTING HOLE LOCATIONS ON (USE A LEVEL) ALIGN WALL PLATEDRILL 3/16 HOLES AT MARKED LOCATIONSON WALL FOR ANCHORSENOTE: Installation OF WALL PLATE Installation with Wall PlateF - Place wall plate overholes in - Insert wall anchorsthrough wall plate into - Attach back plate to - Insert provided screws through backand wall plates into wall - Attach thermostat toback Installation without Wall PlateG - Place back plateover wall anchors in - Insert wall anchorsthrough wall plate into - Insert provided screws throughback plate into wall - Attach thermostat toback THERMOSTATT hermostat wiring connections with various units,including dual fuel, zone control, and applicationsthat include the Humiditrol EnhancedDehumidification Accessory (EDA).

8 See figures 3through 7. For whole home dehumidifier, refer tothe Installation instruction for the Connect wiring between thermostat, indoorunit, and outdoor unit as shown in theappropriate wiring Connect the outdoor sensor (if used) to theT connections on the thermostat (wire runshould not exceed 300' [100m]).3. Seal the hole in the wall with a suitablematerial to prevent drafts from entering thethermostat Configure thermostat and equipment forsystem type, program the thermostat, andtest DESIGNATIONSTc - outdoor Temp. Sensor Connection 1 (Opt.)To - outdoor Temp. Sensor Connection 2 (Opt.)H - Humidification relay (to Humidifier)D - Dehumidification relay (to DS terminal)W2 - Second-stage heating (non-heat pump) or 4thstage (heat pump)Y2 - Second-stage heating or coolingO -Cool active reversing valveB - Heat active reversing valveC - Common 24 VACG -Fan relayW1 - First-stage heating (non-heat pump oremergency heat) or third-stage heating(heat pump)Y1 - First-stage heating or coolingR - 24 VAC power12 TcToHDW2Y2 OBCGW1Y1RW2RY2Y1 DSCGRCDRY2Y1 CFAN RELAYEDA UNITTYPICAL TWO STAGE outdoor UNITTHERMOSTATOUTDOORSENSOR (x2658)NOTE: FAN RELAY NOT REQUIRED WITH SINGLE SPEED outdoor .

9 SEE EDA Installation INSTRUCTION FOR FAN REQUIREDREMOVE Y1 TO DS OR R TO DS JUMPER ONINDOOR UNIT FOR HUMIDITROLAPPLICATIONSY1-Y2 JUMPER (OR ON-BOARD CLIPPABLE LINK) IN FOR SINGLE-STAGE COOLING; REMOVED FOR 2-STAGE STAGEFORTYPICAL indoor UNIT(SEE SPECIFIC MODEL DOCU MENTATION FOR ACTUAL TERMI NAL 3. Enhanced Dehumidification Accessory Typical Wiring Diagram13 TcToToTcFigure 4. CBX32MV-XXX-230-06 or Higher and CBX40 UHV Wiring Diagrams(Condensing Unit Applications)14 ToTcToTcFigure 5. CBX32MV-XXX-230-06 or Higher and CBX40 UHV Wiring Diagrams(Heat Pump Unit Applications)15 CBX25UH AND CBX25 UHV DO NOT HAVE TERMINALSTRIPS IN SENSOR FOR outdoor TEMPDISPLOAY, OPTIONAL HUMIDIFIER DEW POINTCONTROL, HEAT PUMP BALANCE POINTS ANDDUAL-FUEL BALANCE DS-TO-Y1 JUMPER WHENDEHUMIDIFICAITON D TERMINAL IS ON-BOARD LINK FROM R-TO-O (W951 CLIPPABLE CONNECTION ON FURNACE / JUMPERON AIR HANDLER).)

10 DO NOT CUT -ON-BOARD LINK FORM R-TO-O (W951 CLIPPABLE CONNECTION ON FURNACE / JUMPERON AIR HANDLER) WHEN IT IS USED FORCONDENSING UNIT ON-BOARD LINK FORM DS-TO-R (W914 CLIPPABLE CONNECTION ON FURNACE / JUMPERON AIR HANDLER) WHEN DEHUMIDIFICAITON ORHARMONY CONTROL IS 2-STAGE HEAT IS USED, THERMOSTAT ISCONFIGURED FOR MULIT-STAGE HEAT, CONNECTTHERMOSTAT W2 TO AIR HANDLER W2 ANDREMOVE JUMPER BETWEEN R AND DEHUMIDIFICATION RELAY KIT (26W62)REQUIRED WHEN USING D-TO-DS TERMINALSWITH CBX27 2-STAGE CUT ON-BOARD LINK FROM Y1-TO-Y2(W915 CLIPPABLE CONNECTION ON FURNACE /JUMPER ON AIR HANDLER).FOR HUMIDIFIER, 48G95 OR EQUIVALENTISOLATION RELAY REQUIRED - 24 VAC, 5VA MAXCAN BE USED WITH ALL : NOT ALL UNUSED TERMINALS ARE SHOWNON THE THERMOSTAT 6. Key for Figures 7 through , ML193, ML195, EL180E, EL195E,ELO183, SLO185 TSTATML180, ML193, ML195, EL180E,EL195E, ELO183, SLO185 ToTcCB30 and CBX32 MFigure 7.