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33

69-1012

Heating will not come on.
(Continued)

■

Jumper wires R and W. If heat does not come on, contact
your heating dealer.

■

If display is blank or shows 

bAt Lo, install fresh batteries.

■

If temperature setting is higher than current temperature,
and the display shows HEAT, contact Honeywell
Customer Assistance at 1-800-468-1502.

Cooling will not come on.

■

Check that the switch on the thermostat is set to COOL.

■

Check the system fuse or circuit breaker and replace or
reset if necessary.  

■

Check for correct wiring and good connections.

■

Jumper wires Rc and Y. If cooling does not come on,
contact your cooling dealer.

■

If display is blank or shows 

bAt Lo, install fresh batteries.

■

The thermostat has a built-in time delay on cooling. Allow
five to ten minutes after changing the setting before the
air conditioner starts.

■

Make sure the outdoor disconnect is energized (on).

Содержание CT3355A1003

Страница 1: ... 1012 OWNER S GUIDE MagicStat 3355 Programmable Thermostat by Honeywell Weekday Weekend 5 day 2 day Programmable Heat and or Cool Low Voltage 20 to 30 Vac Thermostat and Mounting Plate Model CT3355 69 1012 ...

Страница 2: ...on of this thermostat to Honeywell Customer Assistance at 1 800 468 1502 Monday Friday 7 00 a m 5 30 p m Central time RECYCLING THERMOSTAT If this thermostat is replacing a thermo stat that contains mercury in a sealed tube see Fig 1 do not place your old thermostat in the trash Contact your local waste management authority for instructions regarding recycling and the proper disposal of your old t...

Страница 3: ...Step 5 Adjust Fan Operation Switch as Required 18 Step 6 Adjust System On Time F C as Required 18 Step 7 Mount Thermostat Mounting Plate 21 Step 8 Wire Thermostat Terminals 23 Step 9 Mount Thermostat 27 Step 10 Check Thermostat Operation After Programming and Installing 28 Step 11 Set Fan and System Switches 30 Troubleshooting Guide 32 Limited One Year Warranty Inside Back Cover ...

Страница 4: ... Zone Valves Isolating relay required for 3 wire thermostats for zone valves Not compatible with 2 wire White Rodgers no 1361 Valves b Compatible with hot water baseboard systems Will not work efficiently on steam or gravity systems System Type Compatible With CT3355 Gas Standing Pilot Yes Gas Electronic Ignition Yes Gas Fired Boilers Yes a b Gas Millivolt No Oil Fired Boilers Yes a b Oil Fired Fu...

Страница 5: ...izer batteries M878B CROSS RECESSED SCREWDRIVER HAND OR POWER DRILL WITH 3 16 INCH DRILL BIT IF NEEDED TO DRILL HOLES IN WALL WIRE CUTTER STRIPPER OR SHARP KNIFE IF NEEDED TO STRIP WIRES MASKING TAPE IF NEEDED TO LABEL WIRES AS DISCONNECTED FROM OLD THERMOSTAT LEVEL IF NEEDED TO LEVEL THERMOSTAT FOR APPEARANCE ...

Страница 6: ...ions and receipt Remove the cover from the old thermostat If it does not snap off when pulled firmly from the bottom check for a screw used to lock on the cover Loosen screws holding thermostat to subbase wallplate or wall and lift away Disconnect wires from the old thermostat or subbase As you disconnect each wire use masking tape to label it with the old terminal designation If there are only tw...

Страница 7: ... more wires If there are six or more wires excluding clock wires attached to terminals you probably have a variation of a heat pump or multistage system The thermostat is not compatible with such systems so return the product to the place of purchase If you would like information about which programmable thermostats work with your system call Honeywell Customer Assistance at 1 800 468 1502 Three t...

Страница 8: ...ries Make sure the thermostat is set to the OFF position Use a coin to remove the battery door Install the fresh batteries as shown making sure positive and negative terminals are oriented correctly Replace the battery door As the batteries are running low a bAt Lo indicator flashes for one or two months before batteries run out completely Replace the batteries as soon as possible after the indica...

Страница 9: ...nds of removing the old ones you do not have to reprogram the thermostat However if the display is blank the batteries are dead or incorrectly installed and you must reprogram See pages 14 and 15 to reprogram IMPORTANT Although the thermostat has a low battery indicator replace the batteries once a year to prevent the thermostat and heating cooling system from shutting down due to lack of battery ...

Страница 10: ... house at a comfortable temperature when you get up and while you get ready for work or school When deciding what time to set for your WAKE period include extra lead time depending on the outside temperature and your furnace response time to give the furnace a head start to heat the house before you get up This will be a higher temperature during heating season or a lower temperature during coolin...

Страница 11: ...for weekdays and weekends If you decide not to program the thermostat it will automatically control heating at 68 F 20 C and cooling at 78 F 26 C 24 hours a day Also you do not need to enter a time and temperature program for all periods if your schedule does not require it For example a house that is occupied during weekdays would only require programs for WAKE and SLEEP If no program is entered ...

Страница 12: ...LEAVE RETURN SLEEP Weekends WAKE SLEEP WAKE and RETURN start times should include extra lead time based on outside temperature and furnace response time to give your furnace a head start to heat the house The temperatures cannot be set any higher than 88 F 31 C or any lower than 45 F 7 C 1 2 2 1 1 1 ...

Страница 13: ... extra lead time based on outside temperature and furnace response time to give your furnace a head start to heat the house The temperatures cannot be set any higher than 88 F 31 C or any lower than 45 F 7 C NOTE If you decide not to program the thermostat it automatically controls heating at 68 F 20 C and cooling at 78 F 26 C 24 hours a day 2 2 1 1 1 1 ...

Страница 14: ... at the bottom Follow instructions on pages 8 and 9 Set Current Time Day To set the time press and release once then press until current time shows to set the day press and release again then press until current day shows then press Heating Program With system switch at HEAT press and release once WAKE Mon Fri and SET appear on the display Ahead Back M1699A Set Clock Day Set Clock Day Ahead Back M...

Страница 15: ...E time and to program WAKE temperature for Sat Sun Repeat sequence for SLEEP Cooling Program With system switch at COOL follow the same instructions as for the Heating Program After programming adjust the fan and system switches as desired Press and release to start the program Ahead Back M1699A p Warmer Cooler M1 00A Weekend Schedule Ahead Back M1699A Warmer Cooler M1 00A Run Program Time Temp Ti...

Страница 16: ...hows on display canceling itself at the next scheduled change or to cancel sooner press Hold a temperature indefinitely such as when on vacation press then press HOLD appears on the display to cancel press Check Current Temperature Setting press When using TEMPORARILY CHANGE or HOLD pressing this cancels your change Present Setting Warmer Cooler M1 00A Hold Temp p Warmer Cooler M1 00A Run Program ...

Страница 17: ... for yesterday s usage press again for cumulative press to clear cumulative reading if desired then press Permanently Change a program Repeat steps in Heating Program section or Cooling Program section pages 14 through 16 as applicable Return to normal program or start program press Usage Clear Run Program Run Program Clear Weekday Schedule Weekend Schedule Weekday Schedule Weekend Schedule Run Pr...

Страница 18: ...stem On Time F C as Required The system on time is factory set for a warm air gas or oil heating system If you are installing it on another type of system adjust the on time accordingly by setting screws A and B on the back of the thermostat Use the heating system table shown in the illustration page 20 as a guide Optimize the system on time according to the type of system to minimize room tempera...

Страница 19: ...at does not have a setting for steam gravity air Cycles would not be long enough for accu rate temperature control IMPORTANT When using a high efficiency furnace such as a 90 or greater AFUE Average Fuel Utilization Efficiency unit adjust screw A out one turn and leave screw B in The thermostat is set to read the tempera ture in degrees Fahrenheit If readings are desired in degrees Celsius adjust ...

Страница 20: ... EFFICIENCY FURNACE 90 AFUE ADJUST SCREW A OUT ONE TURN SCREW B IN FUEL SWITCH F POSITION F E FUEL SWITCH WARM AIR FURNACE HOT WATER BOILER ELECTRIC FURNACE A IN A OUT 1 TURN A IN ADJUST SCREWS THROUGH HOLES TO SELECT OPERATION DESIRED B IN B IN B OUT 1 TURN FUEL SWITCH POSITION F F E HEATING SYSTEM ...

Страница 21: ...e wall and drill 3 16 inch holes in the wall if drywall as marked For firmer material such as plaster or wood drill 7 32 inch holes Gently tap anchors provided into drilled holes until flush with the wall Reposition mounting plate over the holes pulling wires through the wiring opening Loosely insert two mounting screws into the holes WALL WIRES THROUGH WALL OPENING WALL ANCHORS 2 MOUNTING PLATE M...

Страница 22: ...22 69 1012 Level for appearance only thermostat functions properly even when not level Tighten the mounting screws LEVEL M1714A ...

Страница 23: ...ding letter on the back of your new thermostat Refer to illustrations on pages 25 and 26 Hold the thermostat as shown to minimize need for wire extenders If wires are still too short use wire connectors purchased locally to extend wires See illustration for guidelines on using wire extenders In 5 wire installations only be sure to remove the factory installed jumper connecting terminals R and Rc M...

Страница 24: ...wire insertion technique Securely tighten the terminals Plug the hole in the wall with insulation to help prevent drafts from adversely affecting the thermostat operation M1712A JUMPER FACTORY INSTALLED REMOVE IF 5 WIRE SYSTEM INSERT STRAIGHT UNDER SCREW HEAD 5 16 in 8 mm STRIP END OF WIRE VISIBLE HERE R R c W Y G M3002A ...

Страница 25: ...ISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 1 HEATING RELAY OR VALVE COIL JUMPER R Rc W Y G B D A C 4 WIRE HEAT COOL JUMPER INTACT L1 HOT L2 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 JUMPER HEATING RELAY OR VALVE COIL M8794 COOLING CONTACTOR COIL FAN RELAY ...

Страница 26: ...MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 M8795 L1 HOT L2 COOLING CONTACTOR COIL FAN RELAY HEATING RELAY OR VALVE COIL 1 1 R Rc W Y G B D A C 3 WIRE COOL ONLY JUMPER INTACT L1 HOT L2 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 JUMPER M8792 COOLING CONTACTOR COIL FAN RELAY ...

Страница 27: ... To remove the thermostat from the wall first pull out at the bottom of the thermostat then remove the top M1734A B PRESS LOWER EDGE OF CASE TO LATCH SWING OPEN COVER TO CHECK OPERATION A ENGAGE TABS AT TOP OF THERMOSTAT AND MOUNTING PLATE C ...

Страница 28: ... the thermostat instead jumper R and W wires at the thermostat Move the system switch to HEAT and the fan switch to AUTO Press key until the setting is about 10 F 6 C above room tempera ture Heating should start and the fan should run after a short delay immediately if fan operation switch is set in E position Press key until setting is about 10 F 6 C below room temperature The heating equipment s...

Страница 29: ... on the air conditioner This delay protects the compressor Move the system switch to COOL and the fan switch to AUTO Press key until setting is about 10 F 6 C below room tempera ture The cooling equipment and fan should start Press key until the setting is about 10 F 6 C above room tempera ture The cooling equipment and fan should stop Move the system switch to OFF with the fan switch at AUTO The ...

Страница 30: ...ir conditioner and on low with the furnace Exception If the fan operation switch on the back of the thermostat is set to the E position see page 20 the fan operates only with the furnace FAN ON The fan runs continuously Use for improved air circulation during special occa sions or for more efficient electronic air cleaning In a heat only system fan runs continuously only if the fan relay is connec...

Страница 31: ...tem switch COOL The thermostat controls your air conditioning system OFF Both the heating and air conditioning systems are off HEAT The thermostat controls your heating system Heat Cool Off Heat Cool Off M1703 Heat Cool Off M1707 ...

Страница 32: ... display will not go lower than 45 F 7 C or higher than 88 F 31 C during programming You have reached the temperature setting limit The setting range is 45 F to 88 F 7 C to 31 C Temperature change occurs at the wrong times Check the program times for the period in question Be sure that AM and PM indications are correct Make sure the current day and time are correct Reprogram if necessary Heating w...

Страница 33: ...oling will not come on Check that the switch on the thermostat is set to COOL Check the system fuse or circuit breaker and replace or reset if necessary Check for correct wiring and good connections Jumper wires Rc and Y If cooling does not come on contact your cooling dealer If display is blank or shows bAt Lo install fresh batteries The thermostat has a built in time delay on cooling Allow five ...

Страница 34: ...oes not come on after the ten minutes and the display shows COOL contact Honeywell Customer Assistance at 1 800 468 1502 If 2 or 4 wire installation verify R Rc jumper is installed The house is too warm or too cool Press PRESENT SETTING key to check the current temperature setting If desired change the temperature setting See page 16 SYSTEM ON indicator is lit but no heat is coming from the regist...

Страница 35: ... Be aware that it is normal for the current setting and display temperature to differ on occasion During recovery from setback or setup setting and display temperatures may differ for up to 30 minutes after recovery period Incorrect room temperature showing on thermostat display Make sure the hole behind the thermostat is plugged with insulation to help prevent drafts from adversely affecting the ...

Страница 36: ...apolis Cincinnati Kansas City St Louis Columbus New York Philadelphia Seattle Louisville Portland Wash D C San Francisco Dallas Atlanta Los Angeles Approximate percentage of energy cost savings Savings for Once A Day 10 F 5 C decrease Savings for Twice A Day 10 F 5 C decrease Savings for 5 F 3 summer increase TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U S AND CANADA Based on 10 F 5 C ...

Страница 37: ...37 69 1012 ...

Страница 38: ...38 69 1012 ...

Страница 39: ...uct was in the possession of a consumer Honeywell s sole responsibility shall be to repair or replace the product within the terms stated above HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING DIRECTLY OR INDIRECTLY FROM ANY BREACH OF ANY WARRANTY EXPRESS OR IMPLIED OR ANY OTHER FAILURE OF THIS PRODUCT Some states do not a...

Страница 40: ...mark Helping You Control Your World Home and Building Control Honeywell Limited Honeywell Limitée 155 Gordon Baker Road North York Ontario M2H 2C9 Home and Building Control Honeywell Inc Honeywell Plaza P O Box 524 Minneapolis MN 55408 0524 Printed on recycled paper containing at least 10 post consumer paper fibers ...

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