White Rodgers 37-7237A Thermostat User Manual
Contents
1. White Blue 4 Universal Thermostat with Rodgers Automatic Heat Cool Changeover Option Single Stage Multi Stage or Heat Pump Installation and Operating Instructions for Model FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS Model Programming Choice CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY 1F83 0471 NonProgrammable AND OR PROPERTY DAMAGE APPLICATIONS THERMOSTAT APPLICATION GUIDE 1F83 0471 Thermostat Description Heat Pump No Aux or Emergency Heat Yes 3 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 Hydronic Hot Water Zone Heat 2 Wires Yes Hydronic Hot Water Zone Heat 3 Wires Yes O O EMERSON Compressor with Comfort Alert II Module 1F85CA only Yes 4 U SPECIFICATIONS Electrical Rating Battery POW8r u nete iet eee mV to 30 VAC NEC Class II 50 60 Hz or DC Input HardWire uu uu uu uuu onone 20 to 30 VAC Terminal HOA PES 1 5 A per terminal 2 5A maximum all terminals combined Setpoint Range a 45 to 90 F 7 to 32 C Rated Differentials Fast Med Slow Heat Single Stage Multi Stage 0 4 F 0 6 F 1 7 F Cool2. lV3H sopow sol ue euorounj ou oad enunuoo eujejur uoroejueuue O OpUOJ ep zn eesep IS V1ON Oo e O SoJopeuloJsueJ sop uoo 10je ep equioq uis edejenjnui o edeje ejos eun ap euiejsis S enpa ee AAO Ou HY aua auand lu nd e qeo je n u Iasvio HOQVWHOJSNVH L ONA e VOA 021 VOA be 1 amyuns ajpajiedssp ep OWLNAN O NPOW o uojuo5 ep eguale ap olnpo0W KoueBieur3 yO ooujoeje edea oz edea h Jojeo esed oH z queries eiliey zsw ou Jojeo opeinByuoo opow 1005 pep s jgegop Z e fononu OMA OA eise 18 10180 A edera ot POW tere oy P a a apneuedeap am SonloA SonJoA oy ep epeurej yeay x Jadna oyp p ds p o ejje ep somonre a Z ueopezlbeue Spon 1 20 PON eoo opowus oops uoioeoipur ered enau 2m belen Bebe ot ees aquejsuoo ewes epsopeapul EP vi H In i ON ep opezibjeu3 uoixeuoo eun aJaINbal as pore o enn eulejsis we 2 a ejuand JOpEeUlIOJSUEJ OJOS un uoo 10129 ep equioq uis ede ninui o ede ejos eun op euiejsis t enpa IIS ejqnsnquioo ep seulejsis SejueinBis soj uoo ojrezijnn eed ojejsouue e JeINBYUOD epeng SeJopeulJoJsueJ sop ep o JopeuuojsueJ OJOS un op euueisis un Jejedo ejed opeuesip ejse ojejsouue 91s3 eulejsis jap S 21 29J8 seuoixeuoo SE eJqos eoyioedse seui ugioeuuojJul J8 ered odinba jap ejueouqe jap seuo
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4. On Auto or Run Sched in System On 2 Menu Mode Displays Menu Displays Save when Cool Savings is working Displays Heat Pump to indicate thermostat is config ured for Heat Pump Displays light bulb in non programmable mode Le t pe Temp Month Call For Service Filter on m m MG een ieee TUN set py wu Q Hold 9 Auto Sched Cool Savings 8 Heat Pump Run x Cool Off Time SYSTEM Heat Emer Auto On Auto Run Sched Schedule Menu 9 Cool Savings when in the Cool Mode if Cool Savings has been enabled in the menu Call For Service indicates a fault in the heating cooling system it does not indicate a fault in the thermostat 3 Flashes LOC when keypad lockout is enabled In Configuration Menu shows screen number If blank thermostat is earlier model and requires instruction sheet 37 7149B 4 save Lt i do uu b N 69 INSTALLER CONFIGURATION MENU To enter the Configuration Menu SYSTEM must be set to HEAT COOL or EMER Press the Menu button for at least 5 seconds The display will show item 1 in the table below Press Menu button to advance to the next menu item Press or to change a menu item INSTALLER CONFIGURATION MENU MENU MS PRESS DISPLAYED Pr
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8. Relay transformer or heat only system transformer 2nd Stage Compressor e 3 Wire Zone Valve Energized when no call for Heat WIRING DIAGRAMS Heat Pump Connections If you do not have a heat pump system refer to figures 4 6 Refer to equipment manufacturers instructions for specific system wiring information You can configure the thermostat for use with the following heat pump systems Figure 3 Heat Pump Systems Jumper urs Ara HEAT PUMP TYPE 1 HP 1 Single stage compressor system gas or electric backup HEAT PUMP TYPE 2 HP 2 Multi stage compressor or two compressor system with gas or electric backup After wiring see INSTALLER CONFIGURATION section for proper thermostat configuration Jumper 9e 9968 Heat Mode wer 2nd Stage lower Heat Pump 1 Energized in a I Emegen Circulator HP1 utpu a HP1 Fault Indicator C00 Mode Heat and E Mode 2nd Fan reke iva Optional or System MEUS mergency Stage on Call for olt 24 Volt C Voit Mode Heat or Cool Hot Hot Malfunction 1st Stage Heat Mod Com a Energized in 2nd tstStage Heat Mode set Elecu Gas Heat Cool Switch g Compressor srd Stage Oonk mon Heat Pump 2 Heat Off Stage Option for HP2 Emergency Com smergency Emergency Mode pressor Stage Mode Comfort Alert Il Module or Similar System NE
9. The and 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 designat ing keypad 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 or 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 configured for MS 2 Multi Stage System no heat pump HP 1 Heat Pump with one stage of compressor HP 2 Heat Pump with two stage compressor or two compressor system Gas or Electric back
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11. mode the setpoint temperature will not adjust past the limit temperature selected When the limit tem perature is reached trying to raise or lower the setpoint past the limit will cause L to be displayed in the times digits for about 6 seconds This feature is not available on earlier models 17 amp 18 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 INSTALLER CONFIGURATION MENU 19 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 feature OFF If a Comfort Alert module is connected and this feature is turned OFF the the
12. recom mend replacing batteries every 2 years If the home is going to be unoccupied for an extended period over 3 months and sr is displayed the batteries should be replaced before leaving When less than two months of battery life remain the setpoint temperature will offset 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 C Another offset will occur within two days if batter ies are not replaced Figure 2 Thermostat base and rear view of thermostat Mounting 1 Mounting Hole Hole Place Level li 3i Place Level across 7 across Mounting Tabs Mounting Tabs for appearance only for appearance only Refer to figure 3 through 6 for wiring diagram specifications TERMINAL DESIGNATION DESCRIPTIONS Terminal Terminal Designation Description Designation Description Enstsnes Heat pump malfunction indicator for systems Heat Relay Emergency Heat Relay Stage 1 with malfunction connection or Comfort Alert signal 2nd Stage Heat 3rd Stage Heat in HP 2 Qiii Changeover valve for heat pump energized Fan Relay constantly in cooling Power for Heating Bes Changeover valve for heat pump energized Power for Cooling constantly in heating Common wire from secondary side of cooling system Compressor
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15. 3 HI 4 HI Adjustable Ambient Temperature Display current temperature 1 LO 2 LO 3 LO 4 LO 14 e e MENU SE C Selects Fahrenheit Celsius Temperature Display 15 e e MENU 90 L Heat L 62 to L 89 Selects Limited HEAT Range 16 e MENU 45 L Cool L 46 to L 82 Selects Limited COOL Range 17 e MS MENU On Heat FA OFF Fast Heat option may be disabled by selecting OFF NA to SS config NA to Cool only system 18 HP2 e MENU On Cool FA OFF Fast Cool option may be disabled by selecting OFF NA to SS config NA to Heat only system 19 e e MENU OFF CA On Selects active Comfort Alert On or OFF Requires CA II Module Not available on earlier models 20 e e MENU OFF Change Filter On Selects Filter Change out Indicator On or OFF 21 e e MENU 200 h Change Filter 25 1975 h Change Filter time in 25 hour increments This menu only appears if On is selected in above 22 e e MENU 0 Cool On b Heat On Selects operation of the reversing valve termi nal O B output as an O or B terminal INSTALLER CONFIGURATION MENU 1 amp 2 Keypad Lockout This menu selection will display 3 4 5 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 keypad lockout selection is enabled L and the MENU button is pressed again the display will indicate the number Q default still disabled in the time digits
16. 4V wires and tape off Connect the neutral circuit disconnected from the heating transformer to the neutral circuit of the cooling transformer Disconnect the wire to the RH terminal and install a jumper between RH and RC Depending on the system requirements replace the cooling transformer with a 75VA class II transformer if needed NEUTRAL 24VAC 120VAC HOT CLASS I TRANSFORMER THERMOSTAT QUICK REFERENCE Home Screen Description Displays the power level of the 2 AA batteries BHD indicates good power level i gt indicates batteries at about half power Change M gt indicates batteries are low and should be replaced with 2 new premium brand AA Alkaline batteries See page 2 for more details Programming and Configuration Items Figure 7 Home Screen Display Room Setting Temperature Temperature Fan Indicator System Indicator Figure 8 Programming amp Configuration Items System On indicates when heating or cooling stage is energized 2 flashing indicates when a second stage is energized 2 not flashing when Aux is energized The word Set indicates the setpoint temperature a 9 Displays Change Filter when the system has run for the programmed filter time period as a reminder to change or clean your filter Displays System Mode Heat Emer Auto Cool Off 8 Change mnm in Menu Mode Displays Fan Mode
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23. Single Stage Multi Stage 0 9 F 1 2 F 1 7 F Heat PUP ies Sea rere n perte anaes 0 9 F 1 2 F 1 7 F AUX CU E cacesetegessstace seenuiacds sages teczegteees 0 6 F _ 1 7 F Operating Ambients u u A aguas s 32 to 105 F 0 to 41 C Operating Humidity 90 non condensing max Shipping Temperature Range 40 to 150 F 40 to 65 C Dimensions Thermostat 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 Installation 2 spilled mercury and place in a sealed container For proper Wiring Connections 2 disposal of a product containing mercury or a sealed Wiring Diagrams 3 container of spilled mercury place it in a suitable shipping Thermostat Quick Reference 4 container Refer to www white rodgers com for location to send product containing mercury Installer Configuration Menu 5 Opera
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25. UTRAL d Malfunction Module i 24VAC e HOT CLASS II TRANSFORMER Single Stage and Multi Stage Connections Refer to equipment manufacturers instructions for specific system wiring information This thermostat is designed to operate a single transformer or two transformer system You can configure the thermostat for use with the following fossil fuel systems NOTE If your system does not provide an E connection jumper W2 to W E to use the Auxiliary Heat in the Emergency Mode Common connection required for fault or malfunction indication 120VAC SINGLE STAGE SS 1 gas oil or electric MULTI STAGE MS 2 gas oil or electric After wiring see INSTALLER CONFIGURATION section for proper thermostat configuration Figure 4 Single Stage or Multi Stage System No Heat Pump with Single Transformer Jumper OOA t9 9 System x Single o E Blower Common connection Stage 1 Fault Energized Constantly No Output Circulator gt S9 at eee r Mode om Fan Energized a vt optenar required for fault or leat on Call for ol ol 1 i H 1 Ki Cool Mode Mode Cool and Hot Hon 24 Vot malfunction indication Multi AUR B st Stage Cool 1st Stage Heat Mode Heat if Heat Cool poss Stage2 Switch Energized Constantly Mode 2nd Stage configured MS2 in Heat Off 2nd for Electric Emergency Stage H
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27. a B terminal to energize the changeover relay in HEAT the O B option should be set at B position IMPORTANT Second Stage Time Delay Your thermostat is designed to determine the optimum time to activate the second stage Simply raising the temperature in heating or lowering it in cooling will not always force the thermostat to bring the second stage on quickly There is a time delay from 0 30 minutes depending on the performance of the first stage of the system EXAMPLE For the last 2 hours the thermostat is set on 70 and the room temperature is 70 with the equipment using only the first stage of heat Since the equipment is keeping the temperature within 1 of setpoint the thermostat will delay second stage for a longer time if you manually raise the temperature or if the room temperature quickly changes Once the second stage comes on it will come on sooner the next time there is a difference between the setpoint and the room temperature The net effect of the staging program is that when the first stage is capable of making temperature the second stage will delay longer When the thermostat calculates that first stage cannot make temperature in a reasonable time the second stage will come on sooner This built in function automatically optimizes the use of additional stages of heat or cool TROUBLESHOOTING Reset Operation Note When thermostat is reset installer configuration menu settings and progra
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29. correctly replace the thermostat Thermostat Setting amp 1 Thermostat thermometer setting The thermometer can be adjusted 4 degrees See Thermostat Thermometer requires adjustment Temperature Display Adjustment in the Configuration Menu Disagree section The location of the thermostat and or the size of the Heating System may be influencing the cycle rate Furnace Air Conditioner 1 Cycles Too Fast or Too Slow narrow or wide temperature swing Forgot Keypad Lockout Code 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 Hold MENU key for 20 seconds and the lockout will reset Thermostat does not have 1 Earlier version of thermostat Menu Screen Numbers Refer to Instruction Sheet 37 7149B HOMEOWNER HELP LINE 1 800 284 2925 White White Rodgers is a division of Emerson Electric Co The Emerson logo is a trademark and service mark of Emerson Electric Co Rodgers www white rodgers com www emersonclimate com amp EMER ON CHI Clim ate Te ewl NOSYAWA ulo2 ejeuiouosJeulo MM
30. e 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 TROUBLESHOOTING Comfort Alert Codes The Comfort Alert diagnostics product monitors the air con ditioning 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 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 22 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
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32. eat Mode Comfort Alert II Module or Similar System NEUTRAL Malfunction Module i 2AVAC 120VAC HOT CLASS II TRANSFORMER Figure 5 Single Stage or Multi Stage System No Heat Pump with Two Transformers Remove Jumper Wire Jumper between RH amp RC ODD e 9 eges System Single Blower Stage1 Energized Constantly Uu No Output _ Circulator SS1 Foul in Cool Mode Fan Energized tog yon OPtonat Heat on Call for olt 24 Volt 24 Volt ursus B panes Mode Cool and Hot Hot Com I USED Energized Constantly Cool st Stage Heat if Heat Cool mon Multi in Heat Off Mode Heat Mode configured Stage 2 Emergency 2nd 2nd Stage for Electric MS2 Mode Stage Heat NEUTRAL P 24VAC 120VAC NEUTRAL J w 120VAC e 24VAC ias DS COOLING CLASS II HEATING TRANSFORMER CLASS II TRANSFORMER System Figure 6 3 Wire SPDT Heat Only Zone Valve Wiring i x T 9 OO Jumper Single Stage 3 wire Zone Valve application Closes Valve 6 Vah Opens Ive 4 Blower Circulator Fan Energized 24 Volt Heat Constant 24 Volt Com mon Hot 5 NOTE If continuous backlight or hardwired power input are desired but do not function in both HEAT and COOL modes cut the heating transformer 2
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35. ess or SCREEN FACTORY DEFAULT to select from listed COMMENTS HP SS BUTTON i NUMBER options 01 e e MENU Off L Total Keypad lockout Lk Not available on earlier models 02 e e MENU 000 Lk 001 to 999 Selects Keypad lockout combination number 03 e e MENU MS 2 HP 1 HP 2 SS 1 Selects Multi Stage MS 2 No Heat Pump Heat Pump 1 HP 1 1 compressor or Single Stage SS 1 Heat Pump 2 HP 2 2 compressor or 2 speed compressor 04 e e MENU GAS for SS or MS ELE or GAS setting furnace controls the blower ELE for HP GAS ELE setting thermostat controls the blower 05 e e MENU 0 CS 1 2 3 4 5 6 Selects Cool Savings Value 1 low to 6 high Value 0 Disables Feature 06 e MENU ME SL FA Adjustable Anticipation CR Heat Selects heating cycle rate for MS or SS 07 e MENU ME SL FA Adjustable Anticipation CR Cool Selects cool cycle rate 08 e MENU ME SL FA Adjustable Anticipation Heat Pump only CR Heat Pump when heat pump selected in 1 09 e MENU FA SL FA Selects the cycle rate for Emergency CR Emer mode and Auxiliary stage if Heat Pump SL is selected in item 1 10 e e MENU OFF CL CL On Compressor Lockout Time Delay 11 e e MENU Heat Auto Heat Cool Off Select System Switch Configuration Cool Off Heat Off with Fan icon with Automatic Changeover capability Heat Off without Fan icon Cool Off Auto Off 12 e e MENU On dL dL OFF Selects Display Light On or OFF 13 e e MENU 0 1 HI 2 HI
36. etpoint for up to five minutes 11 System Mode Configuration This thermostat is configured 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 12 Select Backlight Display The display backlight im proves display contrast in low lighting conditions When the C terminal is powered selecting backlight CdL 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 matter whether the backlight is selected ON or OFF 13 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 14 Select F or C Readout Changes the display readout to Celsius or Fahrenheit as required 15 amp 16 Temperature Limit Range Heat or Cool This selection sets the maximum HEAT 13 or minimum COOL 14 temperature for the setpoint range Select the limit temperature using the or keys In the Run Schedule
37. her temperature To 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 6 7 8 amp 9 Cycle Rate Selection The factory default set ting for Heat and Cool modes SS1 MS2 is medium cycle ME For Heat Pump HP1 HP2 the default set ting is medium ME For Emer Aux the default setting is fast 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 4 F O6F 1 7F Cool SS1 MS2 0 9 F 12 F 1 7F Heat Pump HP1 HP2 0 9 F 1 2 F 17F Emer HP1 HP2 0 6 F T 7 F 10 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 s
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39. mming 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 batteries If the thermostat has been reset and still does not 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 displayed momentarily Symptom Possible Cause Correction Action No Heat No Cool No Fan 1 Blown fuse or tripped circuit breaker Replace fuse or reset breaker common problems 2 Furnace power switch to OFF Turn switch to ON 3 Furnace blower compartment door or panel Replace door panel in proper position to engage safety loose or not properly installed interlock or door switch 4 Loose connection to thermostat or system Tighten connections No Heat 1 Pilot light not lit Re light pilot 2 Furnace Lock Out Condition Heat Many furnaces have safety devices that shut down when may also be intermittent a lock out condition occurs If the heat works intermittently contact the furnace manufacturer or local HVAC service per
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41. ostat operation 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 into place o 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 ari is displayed the thermostat is battery powered If amm is not displayed thermostat is system powered with optional battery back up When battery power remaining is approxi mately half the gt will be displayed When Change 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
42. rmostat 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 20 amp 21 Select Filter Replacement Reminder and Set Run Time Select the Change Filter reminder On or OFF If selected On press MENU to select the time OPERATING YOUR THERMOSTAT Choose the Fan Setting Auto or On Press the FAN button 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 Manual Operation for Non Programmable Mode Press the SYSTEM button to select Heat or Cool and use the or buttons to adjust the temperatur
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47. son for assistance 3 Heating system requires service or Diagnostic Set SYSTEM Switch to HEAT and raise the thermostat requires replacement 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 No Cool 1 Cooling system requires service or Same as diagnostic for No Heat condition except set the thermostat requires replacement 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 1 Possible short in wiring Check each wire connection to verify they are not shorted or Heat Cool or Fan 2 Possible short in thermostat touching together No bare wire should stick out from under Runs Constantly 3 Possible short in heat cool fan system terminal block Try resetting the thermostat as described 4 FAN Switch set to Fan ON above If the condition persists the manufacturer of your System or service person can instruct you on how to test the Heat Cool system for correct operation If the system operates
48. ting Your Thermostat T Troubleshooting 7 PART NO 37 7237A E ME ON www white rodgers com Climate logies www emersonclimate com 1117 INSTALLATION A WARNING Thermostat installation and all components of the control system shall conform to Class ll circuits per the NEC 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 therm
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51. up 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 0 which disables this feature Selecting a value greater than O will display Cool Savings on the screen and enable the key for Cool Savings feature Cool Sav ings 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 hig
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