OPERATION GUIDE
Homeowner: Save this booklet for future use!
ASYSTAT656
12-5014-02
Programmable ElectronicSet-Back Thermostat forSingle and MultistageHeatpumps
Page 1: ...OPERATION GUIDE Homeowner Save this booklet for future use ASYSTAT656 12 5014 02 Programmable Electronic Set Back Thermostat for Single and Multistage Heatpumps...
Page 2: ...lid state microcomputer to provide precise comfort This thermostat offers you the flexibility to design heating and cooling programs that fit your needs Please read this manual thoroughly BEFORE opera...
Page 3: ...d Day Enter Heating Program Enter Cooling Program CHECK YOUR PROGRAMMING QUESTIONS AND ANSWERS 29 YOUR NEW THERMOSTAT S FEATURES 4 OPERATING YOUR THERMOSTAT 5 PARTS OF THE THERMOSTAT The Back Of the T...
Page 4: ...erature 9 volt alkaline battery backup Preprogrammed temperature control Electric Heat installer selectable Compressor short cycle protection Programmable blower control Blower delay OFF in the coolin...
Page 5: ...he system at the circuit breaker fuse box BEFORE re movingorattachingthethermostatbody Equipment damage and or personal in jury could occur The subbase is attached to the wall but you can remove the t...
Page 6: ...DISCONNECT 24VAC power from the thermostat at the breaker fuse box Backlight will not come on when 24VAC power has been disconnected connectors on the upper portion of the thermo stat back Gently push...
Page 7: ...and the buttons are located behind the thermostat door To open the door put your fingernail in the indentation at the top of the door then pull the door out from the top and swing it down on its hinge...
Page 8: ...or cooling system The Display Continuouslydisplayssystemmode HEAT OFF EMER COOL AUTO HOLD Dur ing programming the program period is displayed MOR DAY EVE or NHT Alternately displays room temperature...
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Page 10: ...eek Used to initiate or review thermostat pro gramming 8 7 9 10 11 12 Used to start program operation after pro gramming Also used to return thermostat to program operation after being in HOLD mode Us...
Page 11: ...indicates that the third stage heat is operating A flashing RED light indicates a defrost fault is maintaining setpoint temperature there is a 5 to 10 minute startup delay on the first emergency cycle...
Page 12: ...e last switch on the right If it is ON simply put the thermostat back on the wall and restore 24VAC power If the switch OPERATING FEATURES Now that you are familiar with the thermostat display and but...
Page 13: ...right Leave the battery out of the thermostat for at leasttwo minutes to allow the thermostat to reset itself DO NOT MOVE ANY OTHER OPTION SWITCH as it may affect thermostat opera tion See INSTALLERS...
Page 14: ...m temperature at the selected setting until you press RUN PRGM to start program operation again This feature is ideal for energy conservation when the building is unoccupied for an extended pe riod of...
Page 15: ...rn of power after a power outage b Pressing SYSTEM SWITCH to change operating modes c Pressing creating a call for COOL too soon after a previous call During lockout in the HEAT or COOL mode the green...
Page 16: ...AN appears To override constant fan press FAN button until FAN disappears from dis play and FAN appears SYSTEM INDICATOR LIGHTS The three lights on the upper right part of the thermostat indicate syst...
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Page 18: ...peri ods of low activity During early morning hours the need for cooling is usually minimal PLANNING FOR YOUR NEEDS First answer the following questions to help you decide what your needs are If you a...
Page 19: ...ouse be at this time These will be your NHT night temperature settings FOR COMMERCIAL APPLICATIONS 5a What time does the first person arrive at the building in the morning b What temperature should th...
Page 20: ...F NOTE b What temperature should the building be at this time These will be your EVE evening temperature settings 8a What time does the building become va cant b What temperature should the building...
Page 21: ...programs for example you may select 5 00 AM and 70 as the weekday MOR heating start time and temperature and choose 7 00 AM and 76 as the weekday MOR cooling start time and temperature Use the follow...
Page 22: ...22 WEEKDAY 5 DAY WEEKEND 2 DAY Start Time Temperature Start Time Temperature MOR HEAT DAY HEAT EVE HEAT NHT HEAT MOR COOL DAY COOL EVE COOL NHT COOL...
Page 23: ...HEAT 5 00 AM 70 F 7 00 AM 68 F DAY HEAT 8 00 AM 65 F 11 00 AM 70 F EVE HEAT 5 00 PM 70 F 6 00 PM 70 F NHT HEAT 10 30 PM 65 F 11 30 PM 65 F MOR COOL 6 30 AM 76 F 7 00 AM 76 F DAY COOL 2 00 PM 78 F 12 3...
Page 24: ...OFF POSITION BEFORE REAT TACHING THERMOSTAT TO SUBBASE You cannot program the thermostat with the SYSTEM SWITCH in the AUTO position NOTE Set Current Time and Day 1 Press SET CLOCK once The display w...
Page 25: ...ant temperature The display will revert to the alter nating time temperature display To resume programming after this happens press until you are at the point where you stopped programming Then you ma...
Page 26: ...uld be changed from 5 DAY to 2 DAY 10 When you have completed entering your heating program press RUN PRGM This display window shows that for the weekday MOR period the start time is 5 00 AM and 70 is...
Page 27: ...es and temperatures in sequence for weekday then weekend MOR DAY EVE and NHT program periods 3 Press RUN PRGM CAUTION If outside temperature is below 50 F we recommend that you remove the thermo stat...
Page 28: ...s SYSTEM SWITCH until OFF is displayed Reattach thermostattosubbase Turnonpowertothesystem Then press SYSTEM SWITCH to select the operation mode you want HEAT COOL AUTO Press FAN SWITCH until FAN AUTO...
Page 29: ...emperature will not change when the EVE period begins See PROGRAMMING YOUR THERMOSTAT QUESTIONS AND ANSWERS 3 How can I finish my programming if the display has already changed to time tem perature Du...
Page 30: ...rogrammed in the HEAT and COOL modes Please refer to sec tion PROGRAMMING YOUR THERMOSTAT 6 What can cause the thermostat display to freeze or go blank A completely blank display may indicate that pow...
Page 31: ...read the cautionary state ment below Then if conditions permit until OFF is displayed Replace the thermostat on the wall Then press RUN PRGM to begin the factory preset program Or you may reprogram t...
Page 32: ...ing The EMR function will bring on the system to automati cally bring the temperature to the selected level by the beginning of the next program period Please refer to OPERATING YOUR THERMOSTAT You ha...
Page 33: ...rn the system back on press SYSTEM SWITCH until HEAT COOL etc is displayed The system will automatically begin operating according to the current thermostat program unless the thermostat is in the HOL...
Page 34: ...YOUR PROGRAMMING to determine whether your programming was maintained If the ther mostat maintains programming press SYSTEM SWITCH until OFF is displayed put the thermostat back on the wall press SYS...
Page 35: ...unreasonable use In no event shall American Standard be liable for incidental or consequentialdamages Innoeventshallanyimplied warranty of merchantability or fitness for use exceed the term of the lim...
Page 36: ...l for service D E L s u t a t S e d o M l o o C e d o M t a e H e d o M y c n e g r e m E n e e r G g n i h s a l F O L r o s s e r p m o C O L r o s s e r p m o C A N n e e r G y d a e t S e g a t S...
