Installation and Setup Guide Color Touchscreen Programmable Thermostat ComfortSense ® 7500 Model: 13H14 507504-02 5/2017 Supersedes 507504-01
IMPORTANT WARNING Read this manual before programming the ther mostat. Use this thermostat only as described in this man ual. This product contains a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm. Shipping and Packing List ComfortSense® 7500 , 7-day programmable touchscreen thermostat with back plate 2 - Mounting screws (M3.
Overview Description The ComfortSense® 7500 thermostat is an electronic 7-day universal multi‐stage programmable touch screen thermostat. It also offers enhanced capabilities which include: humidification measurement and control, dew point adjustment control, dehumidification measurement and control, Humiditrol® Enhanced Dehumidification Accessory (EDA) capability, Dimensions (H x W x D) Case dimensions: 3-5/16 x 4-5/16 x 7/8 in.
outdoor temperature display on the home screen, balance points, dew point humidity control, and with Humiditrol® EDA. IMPORTANT In all applications, the ComfortSense® Model 7500 thermostat can only be used with all residential units and approved commercial split‐system matches, and those which meet the following installation criteria: installation uses 18 GAUGE thermostat wire or larger, thermostat wire run length DOES NOT EXCEED 300' (91m), load from any thermostat connection is 1 AMP or LESS.
CAUTION This is a 24VAC low-voltage thermostat. Do not install on voltages higher than 30VAC. Do not short (jumper) across terminals on the gas valve or at the system control to test instal lation. This will damage the thermostat and void the warranty. WARNING Always turn off power at the main power source by switching the circuit breaker to the OFF posi tion before installing or removing this thermo stat. All wiring must conform to local and national building and electrical codes and ordinances.
Exceed thermostat wire run length greater than 300 feet (91m). INSTALLING THERMOSTAT 1. Unpacked the thermostat and open the case with a thin-blade screwdriver. Place between wall base and unit and twist to separate unit from base. 2. Select a location for the thermostat about 5 feet (1.5m) above the floor in an area with good air circulation at average temperature. 3. Do not install the thermostat where it can be affected by: Drafts or dead spots behind doors and in corners.
4. Use steps A through J (step J applicable when using provided wall plate) to install the thermostat. PULL ABOUT 3” OF THERMOSTAT WIRE THROUGH OPENING AND RE MOVE OUTER THERMOSTAT WIRE JACKET.
C TRIM 1/4” INSULATION FROM END OF EACH WIRE (USE A LEVEL) ALIGN WALL PLATE 1/4” D DRILL 3/16” HOLES AT MARKED LOCATIONS ON WALL FOR ANCHORS E USE UNIT WALL PLATE AS TEMPLATE TO MARK DESIRED MOUNTING HOLE LOCATIONS ON WALL. NOTE: INSTALLATION OF WALL PLATE IS OPTIONAL.
Thermostat Installation with Wall Plate F - Place wall plate over holes in wall. H - Attach back plate to wall plate. G - Insert wall anchors through wall plate into wall. J - Attach thermostat to back plate. I - Insert provided screws through back and wall plates into wall anchors. Thermostat Installation without Wall Plate I - Attach thermostat to back plate. G - Place back plate over wall anchors in wall. F - Insert wall anchors through wall plate into wall.
WIRING THERMOSTAT TERMINAL DESIGNATIONS Thermostat wiring connections with various units, including dual fuel, zone control, and applications that include the Humiditrol® Enhanced Dehumidification Accessory (EDA). See figures 3 through 7. For whole home dehumidifier, refer to the installation instruction for the dehumidifier. 1. Connect wiring between thermostat, indoor unit, and outdoor unit as shown in the appropriate wiring diagram. 2. Connect optional (purchase separately) outdoor sensor.
Installing and Displaying Outdoor Temperature on Home Screen Install the optional (purchase separately) outdoor sensor (X2658) on a northern wall of the home, away from direct sunlight or other heat sources that may affect its sensitivity. NOTE - The outdoor sensor uses standard thermostat wiring; it may be wired using two wires of a multi-wire cable with a wire run not to exceed 300 feet or 100 meters. 1. Connect outdoor sensor to terminals Tc and To on thermostat. 2.
Figure 3.
To Tc To Tc Figure 4.
To Tc To Tc Figure 5.
WHEN 2-STAGE HEAT IS USED, THERMOSTAT IS CONFIGURED FOR MULIT-STAGE HEAT, CONNECT THERMOSTAT W2 TO AIR HANDLER W2 AND REMOVE JUMPER BETWEEN R AND W2. CBX25UH AND CBX25UHV DO NOT HAVE TERMINAL STRIPS IN UNIT. FOR HUMIDIFIER, 48G95 OR EQUIVALENT ISOLATION RELAY REQUIRED - 24VAC, 5VA MAX CAN BE USED WITH ALL THERMOSTAT APPLICATIONS. CUT ON-BOARD LINK FORM DS-TO-R (W914 CLIPPABLE CONNECTION ON FURNACE / JUMPER ON AIR HANDLER) WHEN DEHUMIDIFICAITON OR HARMONY CONTROL IS USED.
CB30 and CBX32M ML180, ML193, ML195, EL180E, EL195E, ELO183, SLO185 TSTA T TSTA T ML180, ML193, ML195, EL180E, EL195E, ELO183, SLO185 TSTAT To Tc Figure 7.
ML180, ML193, ML195, EL180E, EL195E, ELO183, SLO185 CBX25UH, CBX25UHV, CBX32MV TSTAT TSTAT Figure 8.
EL280P TSTAT EL296E, EL296V, SL280V TSTAT To To Tc Tc Figure 9.
CBX25UH, CBX25UHV, CBX27UH CBX25UH, CBX25UHV, CBX32MV TSTAT TSTAT To To Tc Tc Figure 10.
ML180, ML193, ML195, EL180E, EL195E, ELO183, SLO185 EL296E, SL280V, EL296V, SLP98 TSTAT TSTAT To To Tc Tc Figure 11.
MENU 1. Touch menu option from the home screen. System Settings 2. Touch and hold the settings option on the menu. This will display the installer settings notice and then menu. You may be asked for an access code. The factory default access code is 864. menu notifications 13 performance report < installer settings installer settings must be set by qualified person. edit schedules confirm settings Figure 12. Menu Screen Figure 13.
SYSTEM SETUP Balance Point, then heat pump heating is not allowed and only backup heat will be used. Sets the thermostat for operation with either a non-heat pump or heat pump and defines the number of compressor stages. Indoor unit settings include no heat, gas/oil or electric and number of indoor heat stages. 2. When in heat mode and the outdoor temperature is above the programmed High Balance Point, then heat pump heating is allowed and backup heat will not be used.
DEADBAND Default is 2°F. The deadband setting is the minimum difference between the cooling and heating set points. This setting is used in cool/heat mode to ensure smooth equipment operation. The deadband is adjustable from 2 to 9°F. Use the + or option to select desired deadband. Touch < to return to previous menu. SMOOTH SET RECOVERY(SSR) Options are enable or disable. Default is enable.
Table 1. Smooth Set Recovery (SSR) & SSR Stg 2 Lock Out Operation Equipment Available Single-stage heat pump with one or two stages of electric backup Two-stage heat pump with one- or two-stages of electric backup Single-stage heat pump with single-stage gas or oil backup When SSR is enabled then SSR Stage 2 lock out is enabled. Can be set between 20 and 120 minutes. Default is 20 minutes When SSR is disabled then SSR Stg 2 lock-out setting is disabled.
Equipment Available When SSR is enabled then SSR Stg 2 lock out is automatically enabled. When SSR is disabled then SSR Stg 2 lock-out setting is disabled. Single-stage heat pump with: Two-stages of gas or oil backup Modulation furnace Two-stage heat pump with one stage gas/oil backup Run heat pump (Y1) only All backup heat (W1/W2) is enabled and SSR Stage 2 Lock Out is set between 20 120 minutes before the wake-up set point. Run heat pump (Y1/Y2) only.
Equipment Available Two-stage heat pump with: Two-stages of gas or oil backup Modulation furnace When SSR is enabled then SSR Stg 2 lock out is automatically enabled. Run heat pump (Y1/Y2). All backup heat (W1/W2) is enabled and SSR Stage 2 Lock Out is set between 20 120 minutes before the wake-up set point. When SSR is disabled then SSR Stg 2 lock-out setting is disabled. Run HP (Y1/Y2) until a second-stage demand is needed which is deter mined by the time / temperature dif ferential.
STAGE DELAY TIMER STAGE 2 THROUGH 4 DIFF Default is ON. When ON, all stage delay timers (stages 2, 3, and 4) are enabled and will serve to bring on additional stage(s) of cooling or heating on a timed basis (default 20 minutes) in cases when the previous stage of heating or cooling will not raise or lower the room temperature to the set point in a given time. (Where applicable) The default is 1.0°F but can be programmed between 0.5° and 8.0°F in 0.5°F increments. Touch < to return to previous menu.
STAGE 2 HP LOCK TEMP Default is off (heat pump stage 2 operates normally). Use this setting in dual fuel applications to lock in the 2nd stage compressor when the outdoor temperature is at or less than the LOCK TEMP set point. Scroll to STAGE 2 HP LOCK TEMP; touch ENTER. Use - + option to select a LOCK TEMP between -40 and 75ºF. Touch < to return to previous menu.
H/C Stages Locked = NO 1st stage OFF 2nd stage OFF H/C Stages Locked = YES SET POINTS: SP -1.5 1st stage ON Stg1 Differential 1st stage OFF 1st stage ON Stg1 Differential 2nd stage OFF SP -1.0 2nd stage ON Stg2 Differential 2nd stage ON Stg2 Differential SP -0.5 SP +0.5 SP SP +1.0 SP +1.5 SP +2.0 Figure 14. Cooling - 1 or 2 stages H/C Stages Locked = NO 1st stage ON 2nd stage ON H/C Stages Locked = YES SET POINTS: SP -3.
H/C Stages Locked = NO 1st stage ON 2nd stage ON 3rd stage ON H/C Stages Locked = YES 2nd stage OFF Stg2 Differential 3rd stage OFF Stg3 Differential 1st stage ON 2nd stage ON 3rd stage ON SET POINTS: SP -3.5 SP -3.0 SP -2.5 1st stage OFF Stg1 Differential 1st stage OFF Stg1 Differential 2nd stage OFF Stg2 Differential 3rd stage OFF Stg3 Differential SP -2.0 SP -1.5 SP -1.0 SP -0.5 SP SP +0.5 Figure 16.
H/C Stages Locked = NO 1st stage ON 2nd stage ON 3rd stage ON 4th stage ON 2nd stage OFF Stg2 Differential 3rd stage OFF Stg3 Differential 4th stage OFF Stg4 Differential H/C Stages Locked = YES 1st stage ON 2nd stage ON 3rd stage ON 4th stage ON SET POINTS: SP -3.5 1st stage OFF Stg1 Differential 1st stage OFF Stg1 Differential 2nd stage OFF Stg2 Differential 3rd stage OFF Stg3 Differential 4th stage OFF Stg4 Differential SP -3.0 SP -2.5 SP -2.0 SP -1.5 SP -1.0 SP -0.
H/C Stages Locked = NO or YES 1st stage ON 2nd stage ON SET POINTS: SP -3.0 SP -2.5 1st stage OFF Stg1 Differential 2nd stage OFF Stg2 Differential SP -2.0 SP -1.5 SP -1.0 SP SP -0.5 SP +0.5 Figure 18. Heating - dual fuel - 2 stage (1 compressor / 1 backup) H/C Stages Locked = NO 1st stage ON 2nd stage ON 3rd stage ON 3rd stage OFF 1st stage ON 2nd stage ON 3rd stage ON SET POINTS: SP -3.5 2nd stage OFF Stg2 Differential Stg3 Differential H/C Stages Locked = YES SP -3.0 SP -2.
H/C Stages Locked = NO 1st stage ON 2nd stage ON 3rd stage ON H/C Stages Locked = YES 2nd stage OFF Stg2 Differential 3rd stage OFF Stg3 Differential 1st stage ON 2nd stage ON 3rd stage ON SET POINTS: SP -3.5 SP -3.0 SP -2.5 1st stage OFF Stg1 Differential 1st stage OFF Stg1 Differential 2nd stage OFF Stg2 Differential 3rd stage OFF Stg3 Differential SP -2.0 SP -1.5 SP -1.0 SP -0.5 SP Figure 20. Heating - dual fuel - 3 stage (2 compressor / 1 backup) 33 SP +0.
H/C Stages Locked = NO 1st stage ON 2nd stage ON 3rd stage ON 4th stage ON 2nd stage OFF Stg2 Differential 3rd stage OFF Stg3 Differential 4th stage OFF Stg4 Differential H/C Stages Locked = YES 1st stage ON 2nd stage ON 3rd stage ON 4th stage Stg4 Diff. ON SET SP -3.0 POINTS: SP -3.5 1st stage OFF Stg1 Differential 1st stage OFF Stg1 Differential 2nd stage OFF Stg2 Differential 3rd stage OFF Stg3 Differential 4th stage OFF SP -2.5 SP -2.0 SP -1.5 SP -1.0 SP -0.5 SP Figure 21.
COMPRESSOR PROTECT Default is ON and it can be turned OFF, however only for one compressor cycle and then it will revert back to ON. screen will appear and a list all of the predefined reminders plus the two custom reminders will appear at the end of the list. If the system is running in compressor protection, the home screen displays “WAITING” only if there is cooling or heating call for the compressor (Y1/Y2). Scroll to CUSTOM REMINDER 1 or 2 (or renamed titles). Touch the title to select the reminder.
Table 2. Energy Saving Set Points NOTE - Humidification and dehumidifica tion are not part of the energy savings pro gram. A higher utility bill may occur when not using the setpoints in this table. Time Heating Cooling Wake 70°F (21°C) 78°F (25°C) Leave 62°F (17°C) 85°F (29°C) Return 70°F (21C) 78°F (25°C) Sleep 62°F (17°C) 82°F (28°C) ENERGY SAVING DEFAULT Energy saving recommended set points for heating and cooling can help save energy.
system test mode Y1 NOTICE off Y2 Risk of equipment damage. Can cause compressor failure. off W1 off W2 off G off H off D off In dual fuel system applications, do not turn on heat pump and furnace at the same time in sys tem test mode. All HVAC components can be tested to confirm the signals between thermostat and unit are being sent and were received. NOTES: After 5 minutes without a test being initiated, the test modes is disabled and system goes back to the normal mode (i.e.
humidification signal (H terminal) to the humidifier (off when the thermostat is in the COOL mode) controls humidification. When the thermostat is powered, the H terminal is normally inactive (open circuit) in any mode (HEAT/COOL, HEAT, COOL, OFF). When a humidification demand is present, H terminal and G terminal are energized (24V). The system must be in heat mode and had at least one heating call before humidification feature is active.
Rh = set point Where: Outdoor Temp (ºF) 2 + 25 + RHuser dew point adjustment RHuser dew point adjustment cannot exceed +/-15% and Rhsetpoint minimum is 15% and cannot exceed 45%. DEW POINT NORMAL & MAX Dew point adjustment mode will change the humidification set point based on the outdoor temperature and a user-defined dew point adjustment setting. NOTE - In dew point adjustment mode, the humidification set point has no effect whatsoever on unit operation.
Humiditrol: Runs based on humidity reading from thermostat's internal humidity sensor, heating set point and outside temperature. Will over cool space based on settings of min NOTE - The D terminal is ALWAYS activated (24VAC) when the thermostat is in HEAT or OFF mode; it is only inactive (0VAC - reverse logic) during dehumidification. Dehumidification adjustment will change the relative humidity (RH) setting between 45 to 60% RH (default setting is 50% RH).
AUXILIARY DEHUMIDIFIER The auxiliary dehumidifier setting is used when a whole home dehumidifier is used for dehumidification. This requires: 1. Whole home dehumidifier has been wired to thermostat per dehumidifier installation instructions. 2. Dehumidification has been enabled on installer settings. 3. Unit is in COOL mode, (or if in AUTO, there has been at least one thermostat cooling call made prior to the dehumidification demand). 4. Dehumidification demand exists (RH above set point).
indoor variable speed motor to the dehumidification speed and cycle Y2 ON to the outdoor unit. Cooling has priority over Humiditrol® calls. Humiditrol® mode is allowed to over cool up to 2ºF above the heating set point. Heat only—Thermostat will cycle heating ON and OFF to maintain heating set point. Dehumidification functions are disabled.
Number and Serial Number. Separate the base plate from the thermostat to see additional manufacturing information. in the home. Day and time (schedules) may be off due to battery loss. User Settings Memory Protection The thermostat stores all the information concerning its programming (state, mode, program information, last temperature measured) in a nonvolatile memory.
START RUN HUMIDITROL RUN EQUIPMENT IN NORMAL COOL ING MODE Is there a cooling demand ? YES MAX NO RUN EQUIPMENT IN NORMAL HEAT ING MODE YES Is there a heating demand ? NO YES NO NO DEACTIVATE ALL EQUIPMENT Is indoor temperature > 2ºF above heating set point ? Humiditrol Com fort Adjust setting is: Is there a dehumidification demand ? MID Is indoor temp. greater than the heat setpoint plus the cool setpoint divided by 2? YES NO YES ONE OR BOTH TRUE Is EITHER true: outdoor temp.
Table 3. Diagnostic Information Error Screen Code Text 4 5 high tem perature protection temperatur e sensor error Priority 0:high Message Condition 1:middle Type 2:low High tempera ture protection when outdoor 0 critical ambient temper ature exceeds 96°F (35.6°C) 0 critical System Action Action to Clear / Recovery Condition All stages of heat are turned Once temperature off by safety relay. drops below 96°F This error is displayed on no (35.6°C), the system resume operation. tification screen.
Error Screen Code Text 7 8 Priority 0:high Message Condition 1:middle Type 2:low memory error 0 memory error 0 critical critical EEPROM error (Power ON) EEPROM error (Operating) System Action System will restore using to Energy Star defaults and re sume operations. Action to Clear / Recovery Condition Thermostat will need to be replace. This error is displayed on no tification screen. System will operate in nor mal mode operation until Thermostat will need power off.
Error Screen Code Text 9 no external sensor Priority 0:high Message Condition 1:middle Type 2:low 1 critical The outdoor temperature sensor is out of range (-50°F to 180°F) System Action Action to Clear / Recovery Condition For Outdoor Temperature Sen sor: No Humiditrol or Humidity op eration. D terminal stays acti vated and other operation will continue to operate.
Error Screen Code Text Priority 0:high Message Condition 1:middle Type 2:low With humidifier or dehumidifier) and conditions are as follows: System Action All humidity operation will stop and the reading for hu midity will not be valid. 0%: Stat will detect error 10 humidity sensor error 1 critical Action to Clear / Recovery Condition 0-5%: Stat may detect er This message indicates hum sensor is not working cor ror rectly.
Error Screen Code Text Priority 0:high Message Condition 1:middle Type 2:low System Action The reading for humidity will not be valid. 11 humidity sensor error 1 critical Without humidifi er or dehumidifi er and the sen sor reads out of range 0% to 100%. This message indicates hum sensor is not working cor rectly. The display of Indoor Humid ity from HOME will be "--". This error is displayed in no tification screen. 49 Action to Clear / Recovery Condition will resume operation.
Table 4. Reminder Information Error Screen Text Code 12 replace media filter 13 replace UV lamp 14 replace humidity pad 15 routine system check-up 16 replace metal insert for pure air 17 user editable 18 user editable Message Action to Clear / Recovery Condition Type reminder Touch either done to clear the reminder or remind later button.
Table 5. Supported Configurations This thermostat support air conditioner and heat pump systems with one or two speed compressors. It also supports dual-fuel and Humiditrol accessory. For all possible configuration see table below. Backup/ Comp.
Backup/ Backup/ Comp. Indoor Indoor stgs Heat Heat Stg Heat Stg 1st Heat Stg 2nd Heat Stg 2 W1 W1+W2 Non HP GAS/OIL OR ELEC. 1 2 Non HP NONE 1 0 Non HP GAS/OIL OR ELEC. 2 1 1 W1 Non HP GAS/OIL OR ELEC.
Table 6.
Normal, 40 Diagnostic Information, 45 Dimensions INDEX A Thermostat, 3 Wall Plate, 3 Access Code, 21 B E Balance Points, Low, High, 22 Edit Schedules, 43 Energy Saving Defaults, 36 Enhanced Dehumidification Accessory, 12 C Code, 21 Compressor Short Cycle Protection, 3 F Custom Reminder, 35 Fan Operation, 43 H D Humidification Sensor Fault, 42 Humidify, 37 Date and Time, 43 Deadband, 23 Dew Point Normal and Max, 39 Normal and Max, 38 Humidity Offset, 23 Humidity Setting, 35 Dealer Informatio
Reminders, 43 Reset Settings, 35 Residual Cool, 22 Installer code, 21 Installer Settings, 21 L S Language Selection, 43 Limits (Heating and Cooling), 43 Screen Brightness, 43 Screen Lock, 43 Screen Savers, 43 Screws, 2 Smooth Set Back (SSR), 23 Smooth Set Back Stage 2 Lock Out, 23 Stage 1 Differential, 27 Stage 2 through 4 Differential, 27 Stage Delay Differentials, 27 Stage Delay Timer, 27 Supported Configurations, 51 System Setup, 21, 22 System Test Modes, 36 M Memory Protection, 43 Menu Screen, 21
Terminal Designations, 10 Thermostat Installation, 6 W Wall Anchors, 2 U Wiring Diagrams, 12, 13, 14, 15, 16, 17, 18, 19, 20 Unit Part (Catalog) & Serial Numbers, 42 User Settings, 43 Wiring Thermostat, 10 56
