Rheem RHC-TST213UNMS Installation & User Manual
Contents
1. Select the Change Filter reminder On or OFF If selected On press MENU to select the time period from 25 to 1975 hours in 25 hours increments In a typical system 200 hours default of run time is approximately 30 days After the selected time of blower operation the thermostat will display Change Filter as a reminder to change or clean your air filter When Change Filter is displayed press MENU or RUN SCHED button to clear the display and restart the time to the next filter change 24 Select Reversing Valve Output The O B option is factory set at O position This will accommodate the majority of heat pump applications which require the changeover relay to be energized in COOL If the thermostat you are replacing or the heat pump being installed with this thermostat requires a B terminal to energize the changeover relay in HEAT the O B option should be set at B position IMPORTANT Manual Operation for Non Programmable Mode Press the SYSTEM button to select Heat or Cool and use the or buttons to adjust the temperature to your desired setting After selecting your desired settings you can also press the SYSTEM button to select AUTO to allow the thermostat to automatically change between Heat and Cool Manual Operation Bypassing the Program Programmable Thermostats Press or and then the HOLD button and adjust the temperature wherever you like This will override the program The HOLD2. 15 15 MENU P3 PO P2 Defaults for 5 1 1 programming P3 but non programmable PO or 5 2 programming P2 is available on most models 17 16 16 MENU Heat AS On OFF Automatic Schedule for heat mode NA to Cool only system 18 17 17 MENU Cool AS On OFF Automatic Schedule for cool mode NA to Heat only system 19 18 MENU Heat FA On OFF Fast Heat option may be disabled by selecting OFF NA to SS config NA to Cool only system 20 19 MENU Cool FA On OFF Fast Cool option may be disabled by selecting OFF NA to SS config NA to Heat only system 21 20 18 MENU CA OFF On Selects active Comfort Alert On or OFF Require CA II Module Not available on earlier models 22 21 19 MENU dS On OFF Selects Automatic daylight Savings Time option On or OFF 23 22 20 MENU Change Filter OFF On Selects Filter Change out Indicator On or OFF MENU Change Filter 200 h 25 1975 h Change Filter time in 25 hour increments This menu only appears if On is selected in above 24 23 21 MENU Cool On o Heat On b Selects operation of the reversing valve terminal O B output as an O or B terminal 25 24 22 RUN Returns to Normal Operation SCHED INSTALLER CONFIGURATION MENU 1 2 3 4 5 Keypad Lockout This menu selection will display Lk and OFF default keypad not locked out The and are used to toggle the selection between OFF and L keypad locked out When the key
3. Programmable Model Only Worksheet for Re Programming 5 2 Day and 5 1 1 Day Program Heating Wake Up Leave For Work Return Home Go To Bed Program Period 1 Period 2 Period 3 Period 4 6 00 AM 70 F 8 00 AM 62 F 5 00 PM 70 F 10 00 PM 62 F Mon Fri 6 00 AM 70 F 8 00 AM 62 F 5 00 PM 70 F 10 00 PM 62 F Sat Sun or Sat Sun 6 00 AM 70 F 8 00 AM 62 F 5 00 PM 70 F 10 00 PM 62 F 5 1 1 only Cooling Wake Up Leave For Work Return Home Go To Bed Program Period 1 Period 2 Period 3 Period 4 6 00 AM 75 F 8 00 AM 83 F 5 00 PM 75 F 10 00 PM 78 F Mon Fri 6 00 AM 75 F 8 00 AM 83 F 5 00 PM 75 F 10 00 PM 78 F Sat Sun or Sat Sun 6 00 AM 75 F 8 00 AM 83 F 5 00 PM 75 F 10 00 PM 78 F 5 1 1 only TROUBLESHOOTING Comfort Alert Codes The Comfort Alert diagnostics product monitors the air conditioning outdoor systems with single phase Copeland Scroll compressors Abnormal system and electrical conditions are indicated by flashing ALERT codes on the yellow LED on the Comfort Alert module The flash codes are transmitted to the thermostat by the Comfort Alert Thermostat interface module The Comfort Alert compatible thermostat displays Call For Service that flashes at the same rate as the yellow LED on the Comfort Alert module TROUBLESHOOTING Reset Operation Note When thermostat is reset installer configuration menu setting
4. feature bypasses the program and allows you to adjust the temperature manually as needed Whatever temperature you set in HOLD will be maintained 24 hours a day until you manually change the temperature or press RUN SCHED to cancel HOLD and resume the programmed schedule Program Override Temporary Override Press or buttons to adjust the temperature This will override the temperature setting for two hours minimum or until the next programmed time To cancel the temporary setting at any time and return to the program press Run Sched If the SYSTEM button is pressed to select AUTO the thermostat will change to Heat or Cool whichever ran last If it switches to heat but you want cool or it changes to cool but you want heat press both and buttons simultaneously to change to the other mode PROGRAMMING For Programmable Model Only Set Current Time and Date 1 Press MENU and then TIME button once The display will show the hour only 2 Press and hold either the or key until you reach the correct hour and AM PM designation AM begins at midnight PM begins at noon Press TIME once again The display window will show the minutes only Press and hold either the or key until you reach the correct minutes Additional presses of TIME will advance the display to show the year month and date of month Press the or key to change the display to the correct setting for each Press RUN SCHED to exit the TIME mode 3 4
5. into place Batteries 2 AA alkaline batteries are included with the thermostat To install the batteries pull the battery door as shown by the arrow and lift open Using the polarity indicated inside the bat tery door insert the batteries To close the battery door swing the door down while pulling in the direction of arrow Once fully down snap the door back into position To replace the batteries set system to OFF WIRING CONNECTIONS Refer to equipment manufacturers instructions for specific system wiring information After wiring see CONFIGURATION section for proper thermostat configuration Figure 1 Battery door shown open AA Alkaline Batteries Thermostat can be powered by system AC power or Battery If Gm is displayed the thermostat is battery powered If mm is not displayed thermostat is system powered with optional battery back up When battery power remaining is approxi mately half the m will be displayed When Change m gt is displayed install fresh AA alkaline batteries immediately For best results replace all batteries with new premium brand alkaline batteries such as Duracell or Energizer We recom mend replacing batteries every 2 years If the home is going to be unoccupied for an extended period over 3 months and i1 is displayed the batteries should be replaced before leaving When less than two months of battery life remain the setpoint temperature will off
6. matter whether the backlight is selected ON or OFF Select Temperature Display Adjustment 4 LO to 4 HI Allows you to adjust the room temperature display up to 4 higher or lower Your thermostat was accurately cali brated at the factory but you have the option to change the display temperature to match your previous thermo stat The current or adjusted room temperature will be displayed Select F or C Readout Changes the display readout to Celsius or Fahrenheit as required Limited Heat Range This feature provides a maximum setpoint temperature for heat The default setting is 90 F It can be changed between 62 F and 89 F by pressing the CA or C key Limited Cool Range This feature provide a minimum setpoint temperature for cool The default setting is 45 F It can be changed between 46 F and 82 F by pressing the C25 or C key Program Options Configured for 5 1 1 day or 5 2 day programming or non programming mode The default setting is P3 indicating 5 1 1 day programming The programs per week can be changed to P2 or PO by pressing the or keys A selection of 0 Days for non programmable will eliminate the need for EMR and that step in the menu will be skipped INSTALLER CONFIGURATION MENU 17 amp 18 Select Automatic Schedule With just one touch of the Auto Schedule key this feature allows you to program a desired comfort temperature into all the program periods along with a 6 set back for night per
7. turn this feature on in the Cool mode press Cool Savings The display will show Save next to the setpoint temperature When Cool Savings is making ad justments to the room temperature display Save will be flashing and the displayed room temperature may vary within the adjustment range you selected If Save is not displayed and this feature is OFF no change will occur when the cooling system is continu ously running during periods of high demand Energy Management Recovery this step is skipped if configured to be non programmable Energy Manage ment Recovery E On enables the thermostat to start heating or cooling early to make the building temperature reach the program setpoint at the time you specify Heat ing will start 5 minutes early for every 1 of temperature required to reach setpoint Example E On is selected and your heating is pro grammed to 65 at night and 70 at 7 AM If the build ing temperature is 65 the difference between 65 and 70 is 5 Allowing 5 minutes per degree the thermostat setpoint will change to 70 at 6 35 AM Cooling allows more time per degree because it takes longer to reach set temperature 6 7 amp 8 Cycle Rate Selection The factory default setting 9 10 11 12 13 14 15 16 for Heat and Cool modes SS1 and MS2 is medium cycle ME For Heat Pump and HP1 the default setting is medium ME For Emer Aux the default setting is fa
8. 5 6 Enter the Heating Program 1 Press SYSTEM button to select Heat in the system switch area indicating the active mode being pro grammed 2 Press the MENU button and then press SCHEDULE 3 The top of the display will show the day s being pro grammed The time and temperature flashing are also displayed 1 will also be displayed to indicate the pe riod 4 Press or key to change the temperature to your selected temperature for the 1st heating period 5 Press TIME button time will flash 6 Press or key to adjust the start time for the 1st period 7 The time will change in 15 minute increments 8 After you have set the time and the temperature for the period to begin press SCHEDULE to advance to the next program period 9 Repeat steps 2 through 8 until all of the program times and temperatures are set for all program periods on that day 10 Press SCHEDULE to the next day and repeat steps 2 through 9 11 When programming is complete and all of the times and temperatures match your desired heating schedule press RUN SCHEDULE The thermostat will now run your program Enter the Cooling Program 1 Press SYSTEM button to select Cool in the system switch area indicating the active mode being pro grammed Follow Enter Heating Program instructions for entering cooling times and temperatures 2 Energy Saving ENERGY STAR Factory Pre Program The thermostats are programmed with th
9. AN Switch to Auto or On Fan Auto is the most commonly selected setting and runs the fan only when the heating or cooling system is on Fan On runs the fan continuously for increased air circulation or to allow additional air cleaning Choose the System Setting Heat Off Cool Auto Emer Press the SYSTEM button to select Heat Thermostat controls only the heating system Off Heating and Cooling systems are off Cool Thermostat controls only the cooling system Auto Auto Changeover is used in areas where both heating and cooling may be required on the same day AUTO allows the thermostat to automatically select heating or cooling depending on the indoor temperature and the selected heat and cool temperatures When using AUTO be sure to set the Cooling temperatures more than 1 Fahrenheit higher than the heating temperature Emer Heat Pump models Thermostat controls only backup heating system feature OFF If a Comfort Alert module is connected and this feature is turned OFF the thermostat will still receive and flash the fault codes from the Comfort Alert module but the active protection will not be enabled to protect the compressor 22 Select Daylight Saving Time Calculation This feature will allow the thermostat to calculate the DST automati cally and apply it to the Real Time Clock display Default On Use or touch keys to select the feature OFF 23 Select Filter Replacement Reminder and Set Run Time
10. Displays Fan Mode On Auto or Run Sched in Menu mode 6 O Displays Run Schedule Schedule or Menu Displays Save when Cool Savings is working O Displays Heat Pump when system is configured as Heat Pump thermostat Displays Hold in programmable mode when nat in Hold mode Displays Light Bulb in non programmable mode Initially displays Auto Sched If Auto Schedule had been used or disabled then it displays Cool Savings when in the Cool Mode if Cool Savings has been ena bled in the menu 3 Call For Service indicates a fault in the heating cooling system it does not indicate a fault in the thermostat INSTALLER CONFIGURATION MENU With thermostat in Heat Cool or Auto in normal operation press the Menu button for at least 5 seconds The display will show item 1 in the table below Press Menu to advance to the next menu Press or to change an item option INSTALLER CONFIGURATION MENU MENU PRESS DISPLAYED Press or to REF HP SS BUTTON FACTORY DEFAULT select from listed options COMMENTS 1 1 1 MENU Lk OFF L Selects Keypad Lockout Not available on earlier models MENU 0 001 to 999 Selects Keypad lockout combination number 2 2 2 MENU MS 2 HP 1 SS 1 Selects Multi Stage MS 2 No Heat Pump Heat Pump 1 HP 1 1 compressor or Single
11. Stage SS 1 3 3 3 MENU GAS for SS or MS ELE GAS setting furnace controls the blower ELE for HP ELE setting thermostat controls the blower 4 4 4 MENU CS 0 1 2 4 5 6 Selects Cool Savings Disabled Value 1 low to 6 high Value O Disables Feature 5 5 5 MENU E On OFF Selects Energy Management Recovery EMR On or OFF 6 6 MENU CR Heat ME SL FA Adjustable Anticipation Selects heating cycle rate for MS or SS 7 6 MENU CR Heat Pump SL FA Adjustable Anticipation Heat Pump only ME when heat pump selected in 1 8 7 7 MENU CR Cool ME SL FA Adjustable Anticipation or Selects the cycle rate for cooling only when CR Emer FA SL MS 2 or SS 1 is selected in item 1 or Selects the cycle rate for Emergency mode and Auxiliary stage if Heat Pump is selected in item 1 9 8 8 MENU CL OFF CL On Compressor Lockout Time 10 9 9 MENU Heat Auto Heat Cool Off System Mode Configuration Heat Off with Fan icon with Automatic Changeover capability Cool Off Heat Off without Fan icon Cool Off Auto Off 11 10 10 MENU dL On dL OFF Selects Display Light On or OFF 12 11 11 MENU 0 1 HI 2 HI 3 HI 4 Hl Adjustable Ambient Temperature Display current temperature 1 LO 2LO 3LO 4LO 13 12 12 MENU F C Selects Fahrenheit Celsius Temperature Display 14 13 13 MENU L Heat 90 L 62 to L 89 Selects Limited HEAT Range 15 14 14 MENU L Cool 45 L 46 to L 82 Selects Limited COOL Range 16
12. Universal Thermostat with Automatic Heat Cool Changeover Option Single Stage Multi Stage or Heat Pump Save these instructions for future use Installation and Operating Instructions for Model FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS Model Programming Choices CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY HC TST213UNMS 5 1 14 Day 5 2 Day Non Programmable AND OR PROPERTY DAMAGE APPLICATIONS THERMOSTAT APPLICATION GUIDE Description i Heat Pump No Aux or Emergency Heat Yes TEENS Heat Pump with Aux or Emergency Heat Yes Systems with up to 2 Stages Heat 2 Stages Cool Yes Heat Only Systems with optional fan switch Yes Millivolt Heat Only Systems Floor or Wall Furnaces Yes Cool Only Systems Yes Gas or Oil Heat Yes Electric Furnace Yes L Hydronic Hot Water Zone Heat 2 Wires Yes Hydronic Hot Water Zone Heat 3 Wires Yes SPECIFICATIONS Electrical Rating Battery Power ineinander mV to 30 VAC NEC Class II 50 60 Hz or DC Input Hardwire ier treten 20 to 30 VAC Terminal load Arsen COE o va tcm near aig 1 5 A per terminal 2 5A maximum all terminals combined Setpoint Rah Gekregen es 45 to 90 F 7 to 32 C Differential Single Stage Heat 0 6 F Cool 1 2 F adjustable Differential Heat Pump c0oooocccccccconccionanaccnannonancnnnanns Heat 1 2 F Cool 1 2 F adjustable Op
13. code Remove Old Thermostat A standard heat cool thermostat consists of three basic parts 1 The cover which may be either a snap on or hinge type 2 The base which is removed by loosening all captive screws 3 The switching subbase which is removed by unscrewing the mounting screws that hold it on the wall or adapter plate Before removing wires from old thermostat label each wire with the terminal designation from which it was attached Disconnect the wires from the old thermostat one at a time Do not let wires fall back into the wall Installing New Thermostat 1 Pull the thermostat body off the thermostat base Forcing or prying on the thermostat will cause damage to the unit 2 Place base over hole in wall and mark mounting hole locations on wall using base as a template 3 Move base out of the way Drill mounting holes If you are using existing mounting holes and the holes drilled are too large and do not allow you to tighten base snug ly use plastic screw anchors to secure the base 4 Fasten base snugly to wall using mounting holes shown in Figure 2 and two mounting screws Leveling is for appearance only and will not affect thermostat operation 5 Connect wires to terminal block on base 6 Push excess wire into wall and plug hole with a fire re sistant material such as fiberglass insulation to prevent drafts from affecting thermostat operation 7 Carefully line the thermostat up with the base and snap
14. d for MS 2 Multi Stage System no heat pump HP 1 Heat Pump with one stage of compressor SS 1 Single Stage System GAS or Electric ELE fan operation If the heating sys tem requires the thermostat to energize the fan select ELE Select GAS if the heating system energizes the fan on a call for heat Select Cool Savings value Selects the amount of adjustment for the Cool Savings feature in Cool mode with 1 1 being the least amount of adjustment and 6 6 being the most amount of adjustment Default value is O which disables this feature Cool Savings is an optional energy saving feature that can reduce your cooling costs It is based on the principal that lower indoor humidity makes a slightly higher temperature feel more comfortable Cool Savings operates during periods of high demand which normally occur on the hottest summer days when a cooling system may run for hours to reach the thermostat setting Long cooling run times also lower the indoor humidity Cool Savings very slowly adjusts the setpoint temperature to make the setpoint closer to the displayed room temperature to a maximum of the number of degrees you select Adjust ing the setpoint temperature over a long cooling run time allows the system to reach your set temperature and turn off The room temperature will actually be higher than the thermostat displays but the reduction in humidity will allow comfort at the slightly higher temperature To
15. e energy saving settings shown in the table below for all days of the week If this program suits your needs simply set the thermostat clock and press the RUN SCHED button The table below shows the factory set heating and cooling schedule for all days of the week Wake Up Leave For Work Return Home Go To Bed Period 1 Period 2 Period 3 Period 4 Heating 6 00 am 70 F 8 00AM 62 F 5 00 PM 70 F 10 00 PM 62 F Program Cooling 6 99 am 75 F 8 00AM 83 F 5 00 PM 75 F 10 00 PM 78 F Program Planning Your Program Important The Heating and Cooling Program schedules below allow you to pencil in your own program times and temperatures The thermostat comes configured for 5 1 1 day programming and can also be configured for 5 2 day programming see configuration section Factory settings are listed on Monday through Friday Satur day and Sunday If you are re programming a 5 2 day sched ule pencil in your own times and temperatures directly below the factory times and temperatures If you are re programming a 5 1 1 fill in all lines with the times and temperatures you want Keep the following guidelines in mind when planning your program In Heating lower temperatures will save energy n Cooling higher temperatures will save energy f you plan on using Auto Changeover do not program the heating higher than the cooling PROGRAMMING For
16. erating Ambient sese 32 to 105 F 0 to 41 C Operating Humidity eese 90 non condensing max Shipping Temperature Range sesss 4 to 150 F 20 to 65 C Dimensions Thermost t uneeeessrsnnnnessnener nennen nn 3 7 8 H x 5 1 8 W x 1 1 4 D A CAUTION ATTENTION MERCURY NOTICE This product does not contain mercury However this product may replace a product that contains mercury To prevent electrical shock and or equipment damage disconnect electric power to system at main fuse or circuit breaker box until installation is complete Mercury and products containing mercury must not be discarded in household trash Do not touch any spilled Index Page mercury Wearing non absorbent gloves clean up any spilled mercury and place in a sealed container For proper Installation 2 disposal of a product containing mercury or a sealed Wiring Connections 2 container of spilled mercury place it in a suitable shipping Thermostat Quick Reference 3 container Refer to www white rodgers com for location to Installer Configuration Menu 4 send product containing mercury Operating Your Thermostat 6 Programming 7 Troubleshooting 8 PART NO 37 7061B Replaces 37 7061A 1019 INSTALLATION A WARNING Thermostat installation and all components of the control system shall conform to Class Il circuits per the NEC
17. i ods of both Heat and Cool programs Factory default is On for both When Heat AS On and Cool AS On are activated while in Heat or Cool mode select desired setpoint temperature and press Auto Schedule This value will be copied into all the morning day and evening program periods The night program periods will have a 6 F set back 19 amp 20 Select Fast Second Stage ON or OFF Heat pump or Multi stage only in the run mode with the fast Heat feature enabled FA Heat On if the Heat setpoint temperature is manually raised by 3 F 2 C or more above the actual temperature using the second stage will energize immediately With FA OFF second stage will not energize until the setpoint temperature is 1 F or more above actual temperature for more than ten minutes The Fast Cool feature FA Cool provides the same controls when the setpoint temperature is lowered 21 Comfort Alert with Active Protection Turn this feature ON to enable active protection This allows the thermostat to identify fault codes sent by the Comfort Alert module when compressor damage is possible and react to those codes by turning the compressor off Fault codes from the Comfort Alert module will flash on the thermostat Refer to Comfort Alert Yellow Alert Codes in Troubleshooting section If a Comfort Alert module is not connected or to disable active protection turn this OPERATING YOUR THERMOSTAT Choose the Fan Setting Auto or On Set the F
18. n how to test the Heat Cool system for correct operation If the system operates correctly replace the thermostat Thermostat Setting amp Thermostat Thermometer Disagree Thermostat thermometer setting requires adjustment The thermometer can be adjusted 4 degrees See Temperature Display Adjustment in the Configuration Menu section Furnace Air Conditioner Cycles Too Fast or Too Slow narrow or wide temperature swing The location of the thermostat and or the size of the Heating System may be influencing the cycle rate Digital thermostats provide precise control and cycle faster than older mechanical models The system turns on and off more frequently but runs for a shorter time so there is no increase in energy use If you would like an increased cycle time choose SL for slow cycle in the Configuration menu step 6 heat 7 cool or 8 heat pump If an acceptable cycle rate is not achieved contact a local HVAC service person for additional suggestions Forgot Keypad Lockout Code Hold MENU key for 20 seconds and the lockout will reset NOTES NOTES HOMEOWNER HELP LINE 1 800 284 2925 1F85 0423 1F85 0424
19. pad lockout selec tion is enabled L and the MENU button is pressed again the display will indicate the number 0 default still disabled in the time digits The CA and Cv are used to set the combination number from 0 to 999 If a combination of 0 is selected and the MENU button is pressed the menu will be exited and keypad will not be locked If 1 to 999 is selected and the MENU button is pressed the combination is stored into memory and the menu is exited The LOC will display designating key pad locked with a valid combination The SYSTEM button will operate for 10 seconds after the menu mode is exited to allow the user to change the mode from OFF to the desired SYSTEM mode While the keypad is locked out a press of MENU will en ter the configuration menu The first menu item displayed is the combination code 0 The CA or Cv keys are used to set the combination unlock number from 0 to 999 If the unlock number matches exactly with the com bination lock number stored in memory when the MENU button is pressed the keypad is unlocked and the LOC is removed If the unlock number does not match when the MENU button is pressed the combination returns to 0 for another attempt to set the unlock code To exit the menu without unlocking the keypad press RUN SCHED To reset the combination code and unlock the keypad if the code is forgotten see troubleshooting section This control can be configure
20. power level il indicates batteries at about half power Change I 5 indicates batteries are low and should be replaced with 2 new premium brand AA Alkaline batteries See page 2 for more details Room Setting Temperature Temperature Set m t 0t Hi A ium O me O dos oU SYSTEM FAN f eat Auto Menu E System Fan Indicator Indicator Figure 4 Programming amp Configuration Items pr OT Change Him 8 Filter 0 System On 2 O Heat Pump yt ve Temp Hold Month Call For Service rt LAIN Mo Tu We Th Fr Sa Su E P Date Set O Year Auto Sched 19 Cool Savings Save fF SYSTEM Heat Emer Auto Cool Off Time N Sa 4 FAN Run On Auto Schedule Run Sched Menu Programming and Configuration Items System On indicates when heating or cooling stage is energized System On 2 indicates when a second stage is energized The word HOLD is displayed when the thermostat is in the HOLD mode Temp HOLD is displayed when the thermostat is ina Temporary HOLD mode Displays Change Filter when the system has run for the programmed filter time period as a reminder to change or clean your filter 2 Displays Set for setpoint when in Run Program mode 6 Displays System Mode Heat Emer Auto Cool Off or Time in menu mode 6
21. s and programming will reset to factory settings If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermostat by removing the wires from terminals R and C do not short them together and removing batteries for 2 minutes After resetting the thermostat replace the wires and function correctly contact your heating cooling service person or place of purchase Note Be sure to review the installer configuration menu settings To reset the programming clock and configuration settings press and and the FAN button simultaneously The thermostat should go blank and then all segments will be batteries If the thermostat has been reset and still does not Symptom No Heat No Cool No Fan common problems Possible Cause 1 2 3 Blown fuse or tripped circuit breaker Furnace power switch to OFF Furnace blower compartment door or panel loose or not properly installed Loose connection to thermostat or system displayed momentarily Correction Action Replace fuse or reset breaker Turn switch to ON Replace door panel in proper position to engage safety interlock or door switch Tighten connections No Heat No Cool Pilot light not lit Furnace Lock Out Condition Heat may also be intermittent Heating system requires service or thermostat requires replacement Cooling system requires service or thermosta
22. set by 10 degrees 10 degrees cooler in Heat mode 10 degrees warmer in Cool mode If offset occurs the normal setpoint can be manually reset with or 2 Another offset will occur within two days if batter ies are not replaced Figure 2 Thermostat base and rear view of thermostat Mounting Mounting Hole i Hole Place Level Place Level across across Mounting Tabs for appearance only Mounting Tabs for appearance only Refer to 37 7062 for thermostat wiring diagram specifications TERMINAL DESIGNATION DESCRIPTIONS Terminal Terminal Designation Description Designation Description Lena Heat pump malfunction indicator for systems Heat Relay Emergency Heat Relay Stage 1 with malfunction connection 2nd Stage Heat 3rd Stage Heat in HP 2 Qi Leite Changeover valve for heat pump energized Fan Relay constantly in cooling Power for Heating Bisous Changeover valve for heat pump energized Power for Cooling constantly in heating Common wire from secondary side of cooling system Y essi Compressor Relay transformer or heat only system transformer Vans 2nd Stage Compressor Ga 3 Wire Zone Valve Energized when no call for Heat THERMOSTAT QUICK REFERENCE Home Screen Description Figure 3 Home Screen Display Displays the power level of the 2 AA batteries HT indicates good
23. st cycle FA To change cycle rate press the or key Cycle rate differentials for different settings are Fast Medium Slow MODE FA ME SL Heat SS1 MS2 0 4F 0 6 1 7 F Cool SS1 MS2 0 9 F 1 2 F 1 7 Heat Pump HP1 0 9 F 1 2 F 1 7 F Emer HP1 0 6 F 1 7 F Select Compressor Lockout CL OFF or ON Select ing CL ON will cause the thermostat to wait 5 minutes between cooling cycles This is intended to help protect the compressor from short cycling Some newer com pressors already have a time delay built in and do not require this feature Your compressor manufacturer can tell you if the lockout feature is already present in their system When the thermostat compressor time delay oc curs it will flash the setpoint for up to five minutes System Mode Configuration This thermostat is con figured for Heat and Cool SYSTEM switch with Cool Off Heat default It can also be configured for Heat and Cool with Auto changeover Heat Auto Cool Off Heat only with fan Off Heat Heat only without fan Auto only Auto Off and Cool only Cool Off Select Backlight Display The display backlight im proves display contrast in low lighting conditions When the C terminal is powered selecting backlight CAL ON will keep the light on continuously Select backlight OFF will turn the light on momentarily after any key is pressed When the C terminal is not powered the light will be on momentarily after any key is pressed no
24. t requires replacement Re light pilot Many furnaces have safety devices that shut down when a lock out condition occurs If the heat works intermittently contact the furnace manufacturer or local HVAC service person for assistance Diagnostic Set SYSTEM Switch to HEAT and raise the setpoint above room temperature Within a few seconds the thermostat should make a soft click sound This sound usually indicates the thermostat is operating properly If the thermostat does not click try the reset operation listed above If the thermostat does not click after being reset contact your heating and cooling service person or place of purchase for a replacement If the thermostat clicks contact the furnace manufacturer or a HVAC service person to verify the heating is operating correctly Same as diagnostic for No Heat condition except set the thermostat to COOL and lower the setpoint below the room temperature There may be up to a five minute delay before the thermostat clicks in Cooling Heat Cool or Fan Runs Constantly ON Possible short in wiring Possible short in thermostat Possible short in heat cool fan system FAN Switch set to Fan ON Check each wire connection to verify they are not shorted or touching together No bare wire should stick out from under terminal block Try resetting the thermostat as described above If the condition persists the manufacturer of your system or service person can instruct you o
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