ACONT401AN21MA Comfort Control User Manual
Contents
1. provides quick access to the offset degree setup for the current operating mode Default Factory Settings The control is shipped with a set of factory default settings The factory default settings can be restored at any time using the control configuration menu Please see Page 17 for a com plete listing of factory shipped default settings HEAT Pon Press and hold the Energy Savings keypad button to L s gain Quick Access to the Energy Savings setup screen l Use the UP or DOWN arrow keys to change the SETTING offset degrees setting SET UP NOTE Energy Savings offset degrees are selected separately for heating and cooling Press the Mode keypad button while viewing this screen to access the Cooling or Heat ing offset degrees setting then use the UP or DOWN arrow key to select the desired number of offset degrees Press the Energy Savings keypad button again to return to normal display or just wait a few seconds and the display will return on its own Features Page 12 Pub No 12 5037 01 Page 13 Pub No 12 5037 01 Auto Changeover When the system mode is set to Auto the control automatically switches between heating and cooling modes to maintain the desired comfort level i COOL HEAT AUTO OFF EMHEAT fear ROOM gem gi COOL HEAT AUTO OFF HEAT ven am an Ol yen gen E EI eo coe ne Ke em Zeg Lis Appears when m an en L Li semine kal Lf equipment is LI LI e NAdjusting to LI LI eNergize2. Default is 3 degrees Waiting Indicator Enable or Disable Default is Enable Cooling Droop Off 1 or 2 degrees Default is 1 degree Energy Saving Cooling Setpoint Offset 0 25 degrees Default is 5 degrees Energy Saving Heating Setpoint Offset 0 45 degrees Default is 5 degrees Indoor Filter Timer Method Calendar Days or Fan Run Time Days Default is Calendar Days Indoor Filter Timer Days 1 180 days Default is 30 days Calibrate Indoor Temperature 5 Degrees Default is 0 degrees Calibrate Outdoor Temperature 5 Degrees Default is 0 degrees Features cont Calibrate Outdoor Temperature This option allows calibration or deliberate miscalibration of the outdoor temperature sensor The selected number is number of degrees plus or minus which will be added to actual temperature The number can range between 5 and 5 degrees in 1 2 degree incre ments Factory default is 0 This adjusted value will be used and displayed as actual tempera ture For example if 2 is selected 72 degrees actual will read 74 degrees Comfort Information Drawer The drawer attached to the mounting base of the control is designed to provide a convenient location for the user to locate their local servicer A standard business card can be folded and inserted into the slot on the drawer to remind the User whom to call when service is re quired Page 16 Pub No 12 5037 01 FILTER OD If you press and hold the filte
3. Qomnqusip rejeap J290 1NO LO ZE0OS ZL ON and JOBILOI UONBWLOJUI BIOL 104 LIZ6Z sexay ett Aemybiy dnouj 00z9 ouj paepuB S UBOUaUIY Americam Standard ACONT401AN21MA Comfort Control User Manual COOL HEAT AUTO OFF EMHEAT ROOM AUX HT o i ge 5 xa Table Of Contents Page 2 Pub No 12 5037 01 Page 23 Pub No 12 5037 01 Page 4 11 12 16 18 19 20 21 22 23 Introduction Keypad functions Features Factory settings Comfort Control Setup Troubleshooting Warranty Up Arrow Increase temperature Page 5 COOL HEAT AUTO OFF EMHEAT RC x HT ES AT ON ame 05 ka 88 Cran Comfort Information Drawer Page 16 Down Arrow Decrease temperature Page 5 Mode Cool Heat Auto Off EMHeat Page 4 Energy Savings Page 10 Filter Reminder Fan ON AUTO Outdoor Temperature Page 6 Page 7 Some states do not allow limitations on how long an implied warranty last or do not allow the exclusion or limitation of incidental or consequential damages so the above limitation may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state Parts will be provided by our factory organization or an authorized service organization in your area All you need to do is look us up in the Yellow Pages or write to the address given below If you wish further help or information concerni
4. arrow together until icon disappears Display will not come on UP DOWN Arrow A e Use these keys to raise or lower the Heat or Cool Setting The first key press turns on the back lighting and a border around the setting to be adjusted without changing the setting COOL HEAT AUTO OFF EMHEAT ROOM yen vs 1 C serine DD Pressing the Up or Down arrow again will raise or lower the setting that has the border around it hd COOL t U SETTING ae If you press and hold the Up or Down arrow the temperature setting will advance rapidly When the control is set to Auto mode pressing the Mode key once changes the position of the border to heat or cool Keypad Functions cont Page 6 Pub No 12 5037 01 User Setup Options cont Page 19 Pub No 12 5037 01 FAN Chan nD Pressing this key selects whether the indoor fan motor runs in automatic or continuous mode COOL HEAT AUTO OFF EMHEAT ROOM FAN ON ba D o P IL z COOL ON SETTING a wy ON goes away Comfort Control Setup The FAN ON indicates that you have selected to operate the fan in continuous mode Pressing the Fan keypad button again returns the indoor fan mode of operation to automatic and FAN Menu Item Factory Setting Choices Menu Item Factory Setting Choices Step Setting Press UP or DOWN arrow Setting Press UP or DOWN arrow Press Mode or Fan Energy Savi
5. button with the energy efficiency features built into your Comfort Control Your comfort settings are automatically stored in the Comfort Control s memory eliminating the need for battery backup in the event of power loss Simply follow the steps in this instruction manual and begin enjoying the benefits of your new American Standard Comfort Control Keypad Functions Page 4 Pub No 12 5037 01 Page 21 Pub No 12 5037 01 MODE Pressing this key changes the system mode to Heat Emergency Heat Cool Automatic or Off NOTE Emergency Heat available only on Heat Pump COOL HEAT ROOM gt IL applications AUTO OFF EMHEAT A border will appear around the mode on the display to show the system mode you ve selected vo Up COOL ON L SETTING ca COOL HEAT AUTO OFF EMHEAT ROOM AUX HT Mn q rm o am IL OC HEAT ON me SETTING LI al DO COOL servo HU Symptom Heating will not come on Cooling will not come on Cool ON or Heat ON is displayed but no warm or cool air is coming from the registers Control does not respond to keypad presses Fan does not operate properly in heat or cool mode Fan runs all the time 1 Fan mode set to ON 1 Set fan mode to AUTO li 2 Shorted control wiring 2 Check Repair wiring Troubleshooting Continued 1 System Mode not set to Heat 2 Minimum off time delay being enforced waiting displayed 3 Loose conn
6. Furnace power switch OFF 2 Turn switch to ON 3 Furnace blower compartment door or panel 3 Replace door panel in proper position to engage safety interlock or loose or not properly installed door switch Temperature display is incorrect Temperature display needs calibration Calibrate Sensor User Setup Step 49 8 A Temperature display needs calibration 1 Calibrate Sensor User Setup Step 50 Outdoor temperature display is s vois ate n P 2 Disconnect sensor and check circuit resistance value Table 4 incorrect A r Outdoor sensor located in poor sensing location 3 Relocate outdoor sensor Cannot set Heating setpoint Deadband between Heating and Cooling set to high Decrease Deadband setting User Setup Step 42 above 80 degrees Service Flashing on and off Control EEPROM write error Press any key and Check Re enter Setup Choices D ina cali wong Service solid on and n Indoor temperature sensor open or shorted Replace Control temperature display Outdoor temperature display ki shows and Service indicator Outdoor temperature sensor open or shorted 1 Check outdoor sensor wiring on solid 2 Replace outdoor sensor 1 Upper and or lower temperature limits were 1 Check the temperature setpoints Temperature setting will not reached Heating limits are 40 85F change Example Cannot set Cooling limits are 65 90F heating higher or cooling lower 2 Keypad locked is displayed on LCD 2 Unlock keypad press Up Down
7. d U COOL SETTING LI new setting COOL SETTING Setpoint Deadband The number of degrees separating Heating and Cooling setpoints Neither the heating or cooling system operate when the indoor temperature is within the deadband The amount of separation between mode setpoints is user defined between 2 and 10 degrees When the control is set to Auto and the cooling setpoint is changed to a cooler setting the heating setpoint also changes to maintain the selected degrees separation The same action occurs when the heating setpoint is changed to a warmer temperature Outdoor Temperature Display optional sensor must be installed View outdoor temperature from within the conditioned space by pressing the Filter OD keypad button The Comfort Control s display will return to normal display on its own within a few seconds Backlit Display amp Keys The liquid crystal display and keypad will illuminate whenever a keypad button is pressed to improve thermostat visibility The back light stays on for 10 seconds after the last key press The Up and Down arrows are continuously lit Cooling Droop Cooling Droop is an automatic function that cycles the compressor on to improve indoor comfort by removing moisture from the air The Droop cycle is activated when space tem perature is at or below the cooling sensible temperature setpoint When this function is active the control will control indoor temperature at 1 or 2 degrees below coolin
8. ection to control or system 4 Heating system requires service or control requires replacement 1 System Mode not set to Cool 2 Minimum off time delay being enforced waiting displayed 3 Loose connection to control or system 4 Cooling system requires service or control requires replacement 1 The heating equipment turns on the fan when the furnace has warmed up to a setpoint 2 Heating or cooling equipment is not operating 1 Keypad locked icon is displayed on LCD 2 Keypad failure 1 Incorrect wiring 2 Heating or cooling equipment inoperative 1 Set Mode to heat and raise the setpoint above room temperature 2 If heating does not come on within 5 minutes Check Heating 3 Check Repair connections 4 Repair system Replace control 1 Set Mode to cool and lower the setpoint below room temperature 2 If cooling does not come on within 15 minutes contact servicer 3 Repair connections 4 Repair system Replace control 1 Wait one minute after seeing the ON icon and then check the registers 2 Check Heating and Cooling system 1 Unlock keypad press Up Down arrow together until Keypad Locked disappears 2 Replace Control 1 Correct wiring 2 Repair system Trouble shooting Pub Pub Page 20 No 12 5037 01 A V Page 5 No 12 5037 01 Table 2 Troubleshooting BE Geer o 1 Blown fuse or tripped circuit breaker 1 Replace fuse or reset breaker 2
9. g setpoint The Droop cycle is deactivated when the indoor temperature rises above the cooling setpoint Keypad Lock Locking the control keypad can help prevent unwanted tampering or changing the control settings by pressing the controls UP and DOWN arrow keypad buttons at the same time and holding for 2 seconds The KEYPAD LOCKED icon will appear on the control s display Repeating this combination unlocks the keypad
10. ng this warranty contact American Standard Inc Troup Highway Tyler Texas 75711 9010 Attention Manager After Sale Support Warranty Page 22 Pub No 12 5037 01 Introduction Page 3 Pub No 12 5037 01 Limited Warranty Low Voltage Comfort Control This warranty is extended by American Standard Inc to the original purchaser and to any succeeding owner of the real property to which the Comfort Control is originally affixed and applies to products purchased and retained for use within the U S A and Canada If any part of your Comfort Control fails because of a manufacturing defect within 5 years from the date of the original purchase Warrantor will furnish without charge a new Comfort Control Any local transportation related service labor and diagnosis calls are not included This Warranty does not cover failure of your Comfort Control if it is damaged while in your possession or if the failure is caused by unreasonable use In no event shall Warran tor be liable for incedental or consequential damages In no event shall any implied warranty of merchandise or fitness for use exceed the terms of the limited warranty stated above Congratulations on the purchase of your new American Standard Comfort Control Your Comfort Control combines the latest digital control technology with intuitive func tions that make this control simple to understand and easy to operate You ll enjoy lower utility bills at the touch of a
11. ng to the new settings Calibrate Indoor Temperature This option allows calibration or deliberate miscalibration of the room temperature sensor The selection is the number of degrees added to actual temperature The number can range between 5 and 5 Factory default is 0 This adjusted value will be used as actual tempera ture for both display and control action For example if 2 is selected 72 degrees actual will read 74 degrees Features cont Page 14 Pub No 12 5037 01 Page 11 Pub No 12 5037 01 Filter Reminder FILTER OD will automatically flash to remind the homeowner that its time to change the filter once the preset time has expired Pressing the FILTER OD keypad button automati cally resets the internal clock timer Once the timer has been reset the number of days remaining till the next filter change can easily be determined by simply pressing the FIL TER OD keypad button Pressing and holding the FILTER OD keypad button provides quick access to the filter timer setup Energy Savings The Energy Savings mode can provide energy savings by offsetting the indoor setpoint to a cooler temperature setting for heating and a warmer temperature setting for cooling The Energy Savings mode is activated by pressing the Energy Savings key on the control keypad Pressing the Energy Savings key again deactivates the Energy Savings mode Pressing and holding the Energy Savings key
12. ngs L F ee ze eer Heating Setpoint i a fees SEH Ae isplay Celcius Offset egrees Celcius Auto or Manual 0 Manual Indoor Filter Timer 0 Calendar Days 47 Changeover 1 Auto Method 1 Fan Run Time Days Indoor Filter 1 180 Days Setpoint Deadband 2 10 Degrees Reminder Days 0 Disable 48 Calibrated Room Temperature Waiting Icon o Discble Calibretsiindoor 5 Degrees 1 2 degree 49 1 Enable Temperature increments 0 Off Calibrated Outdoor Temperature Cooling Droop 1 1 Degree cahata Outdoor 5 Degrees 1 2 degree 50 emperature 2 2Degrees increments Energy Savings e SA Save Cooling Setpoint D 1 25 Degrees Fahrenheit 45 Exit Setup SA US Default User Settings Sie 1 15 Degrees Celcius Press Mode Exit Offset CA Cancel Note Pressing the Energy Savings Key anytime during setup will advance to step 99 Step 99 Make setting selection and then press MODE to exit SAve USer Save selections Default user settings CAncel Cancel Selections for current session and return to previous session selections Lock Unlock Keypad Press and hold Up Arrow and Down Arrow at the same time for several seconds Keypad Locked icon will display on LCD screen User Setup Options Page 18 Pub No 12 5037 01 Page 7 Pub No 12 5037 01 Entering User Setup Press and hold the MODE and FAN keypad buttons at the same time Keypad Navigation Use the MODE or FAN buttons to navigate f
13. orward and backward through the Setup steps Press MODE to advance forward to the next step Press FAN to return to the previous step Use the UP and DOWN arrow keypad buttons to select or change Setup options LIFI Mi LI J STEP SETTING SET UP FILTER OD When the optional outdoor sensor is installed outdoor temperature can be viewed on the Comfort Control s display by simply pressing the FILTER OD key o ES OUTDOOR Keypad Functions cont Page 8 Pub No 12 5037 01 Factory Default Settings Page 17 Pub No 12 5037 01 FILTER OD SE Press this key twice to display how many days remain before time to replace or clean the filter The FILTER OD indicator will flash on the display when the filter timers days remaining reaches zero ri Press the FILTER OD key twice after cleaning or WI i replacing the filter to turn off the filter indicator and an an reset the timer DAYS REMAINING FOR FILTER If the filter is serviced before the timer expires press the FILTER OD key twice to display the days remaining for filter Press the Down arrow to change the remaining days to zero Press the FILTER OD key twice to reset the timer User Defined Options and Factory Default Settings See Table 1 page 19 Temperature Display Fahrenheit or Celsius Default is Fahrenheit Auto or Manual Changeover Default is Auto Setpoint Deadband 2 10 degrees
14. r OD keypad button for several seconds the display changes to the Quick Setup option for the filter timer Use the UP or DOWN arrow keypad buttons to change the timer setting if desired 1 180 days NOTE Setting to 0 will disable filter timer ar l LI Press the filter OD button again to return to normal SETTING li St display or just wait a few seconds and the display will SET UP return on its own Page 9 Pub No 12 5037 01 Keypad Functions cont Page 10 Pub No 12 5037 01 Page 15 Pub No 12 5037 01 Energy Savings Use this key to lower your systems energy consumption and save money at the same time Pressing the Energy Savings keypad button changes the indoor tempera ture setting to a warmer temperature when the system is operating in the cooling mode and to a cooler indoor temperature setting when operating in the heating mode Energy Savings will appear on the display COOL HEAT AUTO OFF EMHEAT COOL HEAT AUTO OFF EMHEAT OO E SE HEAT r Kee mo HEAT Kou D l D semne IL l servo af ba ENERGY SAVINGS Example Heating offset of 8 degrees Service Indicator SERVICE automatically flashes when an internal fault or error has been detected by the control See Table 2 on pages 20 amp 21 Wait Indicator WAITING will illuminate when the indoor setpoint is moved in the direction of calling for additional system capacity WAITING indicates that the control is adjusti
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