Owner's Manual
Page 1
MagicStat®/3355 Programmable Thermostat by Honeywell OWNER'S GUIDE Weekday/Weekend (5-day/ 2-day) Programmable Heat and/or Cool Low Voltage (20 to 30 Vac) Thermostat and Mounting Plate Model CT3355 1 6699--11001122
MagicStat®/3355 Programmable Thermostat by Honeywell OWNER'S GUIDE Weekday/Weekend (5-day/ 2-day) Programmable Heat and/or Cool Low Voltage (20 to 30 Vac) Thermostat and Mounting Plate Model CT3355 1 6699--11001122
Owner's Manual
Page 2
... recycling and the proper disposal of your new Honeywell MagicStat® Programmable Thermostat. Fig. 1. Direct any questions concerning the application of this thermostat to Honeywell Customer Assistance at 1-800-468-1502. If you comfortable while saving energy when programmed according to the instructions in this thermostat is replacing a thermostat that contains mercury in a sealed tube, see...
... recycling and the proper disposal of your new Honeywell MagicStat® Programmable Thermostat. Fig. 1. Direct any questions concerning the application of this thermostat to Honeywell Customer Assistance at 1-800-468-1502. If you comfortable while saving energy when programmed according to the instructions in this thermostat is replacing a thermostat that contains mercury in a sealed tube, see...
Owner's Manual
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... 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...
... 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...
Owner's Manual
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...on steam or gravity systems. 4 69-1012 Isolating relay required for 3-wire thermostats for Installation s Check Table 1 to the retailer. b Compatible with any 120/240 volt circuit. Not compatible with 2-wire Honeywell Zone Valves. a Compatible with 2-wire White-Rodgers no. 1361 Valves. ...Step 1: Prepare for zone valves. If not, return to make sure this thermostat is compatible with your system. Compatibility Chart. For more information...
...on steam or gravity systems. 4 69-1012 Isolating relay required for 3-wire thermostats for Installation s Check Table 1 to the retailer. b Compatible with any 120/240 volt circuit. Not compatible with 2-wire Honeywell Zone Valves. a Compatible with 2-wire White-Rodgers no. 1361 Valves. ...Step 1: Prepare for zone valves. If not, return to make sure this thermostat is compatible with your system. Compatibility Chart. For more information...
Owner's Manual
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we recommend Energizer® batteries. 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 5 M878B 69-1012 Also purchase two AA alkaline batteries; s Acquire tools and items below as needed.
we recommend Energizer® batteries. 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 5 M878B 69-1012 Also purchase two AA alkaline batteries; s Acquire tools and items below as needed.
Owner's Manual
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... to make certain that is below 50°F (10°C). If it to label it with the old terminal designation. s Loosen screws holding thermostat to system at the furnace, or at the fuse/circuit breaker panel. WIRES THROUGH WALL OPENING M5136 6 69-1012 s TURN OFF POWER to subbase, wallplate ...or wall, and lift away. save package of screws, instructions and receipt. If either does not work, contact your new thermostat and mounting plate; If there is an extra wire that your heating and cooling systems are only two wires, they do not operate the cooling...
... to make certain that is below 50°F (10°C). If it to label it with the old terminal designation. s Loosen screws holding thermostat to system at the furnace, or at the fuse/circuit breaker panel. WIRES THROUGH WALL OPENING M5136 6 69-1012 s TURN OFF POWER to subbase, wallplate ...or wall, and lift away. save package of screws, instructions and receipt. If either does not work, contact your new thermostat and mounting plate; If there is an extra wire that your heating and cooling systems are only two wires, they do not operate the cooling...
Owner's Manual
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...and wrap them separately, using the fan ON switch, this thermostat works with your transformer. Replacing a Clock Thermostat that go to the C or C1 clock terminals on these systems. For details, call Honeywell Customer Assistance at 1-800-468-1502. 7 69-1012 ...), you would like information about which programmable thermostats work without installing an isolating relay on the Chronotherm® Thermostat wiring wallplate. If there are replacing a Honeywell Chronotherm® Thermostat, you may damage your system, call Honeywell Customer Assistance at 1-800-468-1502. Three...
...and wrap them separately, using the fan ON switch, this thermostat works with your transformer. Replacing a Clock Thermostat that go to the C or C1 clock terminals on these systems. For details, call Honeywell Customer Assistance at 1-800-468-1502. 7 69-1012 ...), you would like information about which programmable thermostats work without installing an isolating relay on the Chronotherm® Thermostat wiring wallplate. If there are replacing a Honeywell Chronotherm® Thermostat, you may damage your system, call Honeywell Customer Assistance at 1-800-468-1502. Three...
Owner's Manual
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...or two months before batteries run out completely. Replace the batteries as soon as long, and can leak, causing damage to the thermostat or the wall surface. nonalkaline batteries do not replace the batteries sometime while bAt Lo is set to remove the battery door. s... the fresh batteries as shown, making sure positive and negative terminals are running low, a bAt Lo indicator flashes for programming and operation of the thermostat and heating/cooling system. M1719C REMOVING BATTERY DOOR As the batteries are oriented correctly. s Use a coin to the OFF position. s Replace the...
...or two months before batteries run out completely. Replace the batteries as soon as long, and can leak, causing damage to the thermostat or the wall surface. nonalkaline batteries do not replace the batteries sometime while bAt Lo is set to remove the battery door. s... the fresh batteries as shown, making sure positive and negative terminals are running low, a bAt Lo indicator flashes for programming and operation of the thermostat and heating/cooling system. M1719C REMOVING BATTERY DOOR As the batteries are oriented correctly. s Use a coin to the OFF position. s Replace the...
Owner's Manual
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... See pages 14 and 15 to 30 seconds of battery power. 9 69-1012 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 on the left ends of battery power. INSTALL TWO AA ... batteries are completely dead, the bAt Lo indicator disappears, leaving a completely blank display. bAt Lo stays on without flashing, indicating the thermostat and heating/cooling system have to prevent the system from shutting down due to lack of the batteries to lack of removing the old ...
... See pages 14 and 15 to 30 seconds of battery power. 9 69-1012 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 on the left ends of battery power. INSTALL TWO AA ... batteries are completely dead, the bAt Lo indicator disappears, leaving a completely blank display. bAt Lo stays on without flashing, indicating the thermostat and heating/cooling system have to prevent the system from shutting down due to lack of the batteries to lack of removing the old ...
Owner's Manual
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...include extra lead time, depending on the outside temperature and your furnace response time, to give the furnace a head start to program the thermostat after it is the time period you can set for various times of time and temperature settings for your RETURN period, include extra lead...or school. (This will be a lower temperature during heating season, or a higher temperature during cooling season.) Four time periods are installed, the thermostat can be easily programmed in your hand, before it is the time period you want the house at a comfortable temperature when you get ready ...
...include extra lead time, depending on the outside temperature and your furnace response time, to give the furnace a head start to program the thermostat after it is the time period you can set for various times of time and temperature settings for your RETURN period, include extra lead...or school. (This will be a lower temperature during heating season, or a higher temperature during cooling season.) Four time periods are installed, the thermostat can be easily programmed in your hand, before it is the time period you want the house at a comfortable temperature when you get ready ...
Owner's Manual
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... of your schedule does not require it will probably be different for cooling. Fill in the times and temperatures you desire for the weekends, the thermostat will operate on the weekday SLEEP program all periods if your finger or a soft pencil eraser. Before programming, remove the clear plastic overlay covering the... damage the keypad. If you make an error at the step where you left off. 11 69-1012 If you decide not to program the thermostat, it . to give the furnace a head start to heat the house before you arrive home. (Again, this is lower for heating or higher for each...
... of your schedule does not require it will probably be different for cooling. Fill in the times and temperatures you desire for the weekends, the thermostat will operate on the weekday SLEEP program all periods if your finger or a soft pencil eraser. Before programming, remove the clear plastic overlay covering the... damage the keypad. If you make an error at the step where you left off. 11 69-1012 If you decide not to program the thermostat, it . to give the furnace a head start to heat the house before you arrive home. (Again, this is lower for heating or higher for each...
Owner's Manual
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NOTE: If you decide not to heat the house. 2 The temperatures cannot be set any higher than 88°F (31°C) or any lower than 45°F (7°C). Weekdays WAKE 1 LEAVE RETURN 1 SLEEP Cooling Program Start Time 2 Heating Temperature Weekends WAKE 1 SLEEP 1 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 program the thermostat, it automatically controls heating at 68°F (20°C), and cooling at 78°F (26°C), 24 hours a day. 13 69-1012
NOTE: If you decide not to heat the house. 2 The temperatures cannot be set any higher than 88°F (31°C) or any lower than 45°F (7°C). Weekdays WAKE 1 LEAVE RETURN 1 SLEEP Cooling Program Start Time 2 Heating Temperature Weekends WAKE 1 SLEEP 1 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 program the thermostat, it automatically controls heating at 68°F (20°C), and cooling at 78°F (26°C), 24 hours a day. 13 69-1012
Owner's Manual
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...current day shows; Remove the battery door (on the display. 14 69-1012 to OFF. WAKE, Mon-Fri and SET appear on the thermostat left side) using a coin at HEAT, press and release Weekday Schedule once. then press Run Program . NOTE: Batteries are required for programming ...your new thermostat. Follow instructions on pages 8 and 9. This guide can be used for operation and programming. Time Set Current Time/Day Set Ahead To set...
...current day shows; Remove the battery door (on the display. 14 69-1012 to OFF. WAKE, Mon-Fri and SET appear on the thermostat left side) using a coin at HEAT, press and release Weekday Schedule once. then press Run Program . NOTE: Batteries are required for programming ...your new thermostat. Follow instructions on pages 8 and 9. This guide can be used for operation and programming. Time Set Current Time/Day Set Ahead To set...
Owner's Manual
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The E setting allows the fan to turn . If you want a longer system on -time according to the type of the thermostat. Step 5: Adjust Fan Operation Switch, as Required s The thermostat fan operation switch, labeled FUEL SWITCH (see illustration on -time is factory-set for most systems. If your system is factory-set the...
The E setting allows the fan to turn . If you want a longer system on -time according to the type of the thermostat. Step 5: Adjust Fan Operation Switch, as Required s The thermostat fan operation switch, labeled FUEL SWITCH (see illustration on -time is factory-set for most systems. If your system is factory-set the...
Owner's Manual
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s The thermostat is set to read the temperature in degrees Fahrenheit. Cycles would not be long enough for system type: • Warm Air Furnace-Set at the ... a high efficiency furnace such as shown in illustration. 19 69-1012 First, turn in both screws completely, then adjust for accurate temperature control. NOTE: This thermostat does not have a setting for steam/gravity air.
s The thermostat is set to read the temperature in degrees Fahrenheit. Cycles would not be long enough for system type: • Warm Air Furnace-Set at the ... a high efficiency furnace such as shown in illustration. 19 69-1012 First, turn in both screws completely, then adjust for accurate temperature control. NOTE: This thermostat does not have a setting for steam/gravity air.
Owner's Manual
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THERMOSTAT BACK A DISPLAY °F C-IN DISPLAY °C C-OUT 1 TURN B FOR HIGH EFFICIENCY FURNACE (90%+ AFUE) ADJUST: SCREW A-OUT ONE TURN SCREW B-IN FUEL SWITCH - F POSITION FUEL SWITCH F E C ADJUST SCREWS THROUGH HOLES TO SELECT OPERATION DESIRED HEATING SYSTEM FUEL SWITCH POSITION D WARM AIR A-IN B-IN F FURNACE HOT WATER A-OUT B-IN F BOILER 1 TURN ELECTRIC A-IN B-OUT E FURNACE 1 TURN W Y G R Rc M8796 20 69-1012
THERMOSTAT BACK A DISPLAY °F C-IN DISPLAY °C C-OUT 1 TURN B FOR HIGH EFFICIENCY FURNACE (90%+ AFUE) ADJUST: SCREW A-OUT ONE TURN SCREW B-IN FUEL SWITCH - F POSITION FUEL SWITCH F E C ADJUST SCREWS THROUGH HOLES TO SELECT OPERATION DESIRED HEATING SYSTEM FUEL SWITCH POSITION D WARM AIR A-IN B-IN F FURNACE HOT WATER A-OUT B-IN F BOILER 1 TURN ELECTRIC A-IN B-OUT E FURNACE 1 TURN W Y G R Rc M8796 20 69-1012
Owner's Manual
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... Use a pencil to make sure the mounting plate is level. Loosely insert two mounting screws into drilled holes until flush with the wall. Step 7: Mount Thermostat Mounting Plate s Position the mounting plate on the wall. s Remove the mounting plate from the wall, and drill 3/16-inch holes in the wall (if...
... Use a pencil to make sure the mounting plate is level. Loosely insert two mounting screws into drilled holes until flush with the wall. Step 7: Mount Thermostat Mounting Plate s Position the mounting plate on the wall. s Remove the mounting plate from the wall, and drill 3/16-inch holes in the wall (if...
Owner's Manual
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s Level for appearance only; Tighten the mounting screws. LEVEL M1714A 22 69-1012 thermostat functions properly even when not level.
s Level for appearance only; Tighten the mounting screws. LEVEL M1714A 22 69-1012 thermostat functions properly even when not level.
Owner's Manual
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...wire extenders. Refer to masking tape labels you placed on using wire extenders. 23 WIRE FROM WALL 6 IN. (152 MM) OF 18-GAUGE THERMOSTAT WIRE. If wires are still too short, M1715A use wire connectors (purchased locally) to remove the factory-installed jumper connecting terminals R and Rc. s... In 5-wire installations only, be sure to extend wires. Hold the thermostat as shown to illustrations on pages 25 and 26. MATCH INSULATION COLORS OR MARK WIRE ENDS. 69-1012 METHOD TO INCREASE WIRE LENGTH WIRE NUT...
...wire extenders. Refer to masking tape labels you placed on using wire extenders. 23 WIRE FROM WALL 6 IN. (152 MM) OF 18-GAUGE THERMOSTAT WIRE. If wires are still too short, M1715A use wire connectors (purchased locally) to remove the factory-installed jumper connecting terminals R and Rc. s... In 5-wire installations only, be sure to extend wires. Hold the thermostat as shown to illustrations on pages 25 and 26. MATCH INSULATION COLORS OR MARK WIRE ENDS. 69-1012 METHOD TO INCREASE WIRE LENGTH WIRE NUT...
Owner's Manual
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s Plug the hole in the wall with insulation to help prevent drafts from adversely affecting the thermostat operation. 5/16 in. (8 mm) STRIP INSERT STRAIGHT UNDER SCREW HEAD Rc JUMPER (FACTORYINSTALLED) REMOVE IF 5-WIRE SYSTEM R END OF WIRE VISIBLE HERE WY G M1712A 24 M3002A 69-1012 s Loosen the terminal screws and slip each wire beneath its matching terminal. See illustration (lower right) for wire insertion technique. Securely tighten the terminals.
s Plug the hole in the wall with insulation to help prevent drafts from adversely affecting the thermostat operation. 5/16 in. (8 mm) STRIP INSERT STRAIGHT UNDER SCREW HEAD Rc JUMPER (FACTORYINSTALLED) REMOVE IF 5-WIRE SYSTEM R END OF WIRE VISIBLE HERE WY G M1712A 24 M3002A 69-1012 s Loosen the terminal screws and slip each wire beneath its matching terminal. See illustration (lower right) for wire insertion technique. Securely tighten the terminals.