Honeywell 511 Manual
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21 68-0134T8624C,D TROUBLESHOOTING THERMOSTAT MOUNTED INCORRECTLY ON BASE. BATTERIES ARE INCORRECTLY INSTALLED. SYMPTOM POSSIBLE CAUSE ACTION NO ac POWER TO THERMOSTATCHECK POWER TO FURNACE OR AIR CONDITIONER. –ON-OFF SWITCH –FUSE OR CIRCUIT BREAKER –LOOSE 24V CONNECTION –AT THERMOSTAT –AT FURNACE /AIR CONDITIONER –INCORRECT WIRING –CHECK WIRING DIAGRAM FURNACE OR AIR CONDITIONER WONT OPERATE.NO ac POWER TO THERMOSTATCHECK POWER TO FURNACE OR AIR CONDITIONER. –ON-OFF SWITCH –FUSE OR CIRCUIT BREAKER –LOOSE 24V CONNECTION –AT THERMOSTAT –AT FURNACE /AIR CONDITIONER –INCORRECT WIRING –CHECK WIRING DIAGRAM THERMOSTAT INOPERATIVE CONDUCT SELF-TEST; SEE CHECKOUT. PRESENT SETTING TOO LOW/HIGHADJUST TEMPERATURE BY PUSHING WARMER/ COOLER KEYS. SYSTEM SWITCH ON THERMOSTAT IN WRONG POSITION.RESET THERMOSTAT SYSTEM SWITCH. WAIT 5 -10 MIN. OR USE SELF-TEST IN THERMOSTAT. SEE CHECKOUT. MINIMUM-OFF TIMES IN THERMOSTAT IN OPERATION ON COOLING INCORRECT WIRING CHECK CIRCUIT DIAGRAM. FURNACE OR AIR CONDITIONER INOPERATIVECONSULT FURNACE OR AIR CONDITIONER INSTRUCTIONS. PARTIAL DISPLAY INOPERATIVE THERMOSTAT REPLACE THERMOSTAT. CHECK THAT HEAT OR COOL SYSTEM POWER IS ON. NO POWER TO THERMOSTAT NO DISPLAY SEE INSTALLATION INSTRUCTIONS FOR CORRECT MOUNTING. PRESENT SETTING APPEARS INACCURATE.THERMOSTAT IS IN RECOVERY MODE.•NORMAL OPERATION THERMOSTAT TURNS ON HEATING/COOLING EARLY TO MEET TEMPERATURE SETTING AT PROGRAMMED TIMES. •RECOVERY CAN BE ENDED BY PUSHING WARMER/ COOLER KEYS. CANNOT TEMPORARILY OVERRIDE BOTH HEATING AND COOLING SETTINGS IN AUTO MODE. THERMOSTAT TEMPERATURE NEEDS TO BE ADJUSTED ON A REGULAR BASIS.WARMER/COOLER KEYS BEING USED TO ADJUST TEMPERATUREREPROGRAM THERMOSTAT TO MAKE PERMANENT CHANGE IN PROGRAM. WARMER/COOLER KEYS ARE TEMPORARY UNLESS PERIOD KEY IS PRESSED FIRST. REMOVE AND REPLACE PER MARKINGS ON THERMOSTAT. REPLACE BATTERIES. CHECK PROGRAMMING INSTRUCTIONS FOR CORRECT PROGRAM SEQUENCE. REPROGRAM ACCORDING PROGRAMMING INSTRUCTIONS (MAKE SURE BATTERIES ARE INSTALLED). PROGRAMMING HAS BEEN LOST BECAUSE OF A POWER OUTAGE. DISPLAY FLASHES DURING OPERATION.DISPLAY FLASHES WHILE PROGRAMMING.IMPROPER PROGRAM SEQUENCE PROGRAM IS LOST DUE TO POWER OUTAGE OR DISPLAY GOES BLANK WHEN POWER IS TURNED OFF. BATTERIES ARE DEAD. M5234A NOT USING PRESENT SETTING KEY. SET HEATING AND COOLING TEMPERATURES 3 F OR MORE APART.O ROOM TEMPERATURE DISPLAY IS 32˚F. PRESS AND HOLD DOWN PRESENT SETTING KEY TO ALTERNATE BETWEEN HEATING AND COOLING SETTINGS. AUTOMATIC THERMOSTAT HEATING OR COOLING TEMPERATURE CAN NOT BE SET CLOSER THAN 3 F. O
22 T8624C,D GLOSSARY Troubleshooting Glossary Comfort temperature The temperature desired when active and occupying the home. Energy-saving temperature The lower (heating) or higher (cooling) temperature that allows savings on heating and cooling costs when asleep or away. Also called the setback (heating) or setup (cooling) temperature. Period key One of the four keys—WAKE, LEAVE, RETURN or SLEEP—to check or program the start time and temperatue for a time period. Preprogrammed schedule This is the schedule programmed into the thermostat at the factory. It sets a night program that provides energy savings when homeowner sets no program, or if personal program is lost for any reason. The program, which is the same for all days of the week, is: Program The times and temperatures homeowner sets to define the comfort and energy saving periods for each day schedule.Recovery The time when the thermostat operates the heating or air conditioning equipment to return the home from the energy saving temperature to the comfort temperature. The thermostat starts the recovery period early so the home will be at the comfort setting by the time the homeowner has chosen. Saturday program schedule The schedule of WAKE, LEAVE, RETURN and SLEEP period start times and temperatures programmed to run on Saturdays. Setback Reducing the temperature in the home for a set period in heating for energy savings. The lower temperature is the energy saving temperature. Setup Raising the temperature in the home for a set period in cooling for energy savings. The higher temperature is the energy saving temperature. Setpoint The thermostat temperature setting the homeowner selects. The thermostat turns the heating or cooling equipment on and off to maintain this temperature at the thermostat location until another temperature setting (setpoint) goes into effect. Sunday program schedule The schedule of WAKE, LEAVE, RETURN and SLEEP period start times and temperatures programmed to run on Sundays. SYSTEM light This light glows whenever the thermostat is calling for heating or air conditioning. Time period One of four program periods: WAKE, LEAVE, RE- TURN and SLEEP available with the thermostat. One period begins when the previous program period ends: WAKE—The time period that the house is at a com- fortable temperature while the family gets up and gets ready to leave for work or school. This is the only period that must contain a time and temperature. LEAVE—The time period that the temperature can be set back (winter) or set up (summer) for energy savings because the family is usually away from home. RETURN—The time period that the house is at a comfortable temperature for family activities in the evening before bedtime. SLEEP—The time period that the temperature can be set back (winter) or set up (summer) for energy savings because the family is sleeping. It can be set to start at the family’s normal bedtime. Often the SLEEP program is set only for the heating season so family members can sleep cool in the cooling season. Weekday program schedule The schedule of WAKE, LEAVE, RETURN and SLEEP period start times and temperatures programmed to run Monday through Friday. StartTemperaturePeriod Time Heating Cooling WAKE 6:00 AM 70° F78° F LEAVE——— No program ———— RETURN——— No program ———— SLEEP 10:00 PM 60° F78° F
Home and Building Control Home and Building Control Honeywell Inc. Honeywell Limited—Honeywell Limitée 1985 Douglas Drive North 740 Ellesmere Road Golden Valley, MN 55422 Scarborough, Ontario M1P 2V9 Printed in U.S.A.