Owner's Manual
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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
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... Step 1: Prepare For Installation ...4 Step 2: Remove Old Thermostat 6 Step 3: Install Batteries ...8 Step 4: Program Thermostat ...10 Personal Programming Chart ...12 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 3 69-1012
... Step 1: Prepare For Installation ...4 Step 2: Remove Old Thermostat 6 Step 3: Install Batteries ...8 Step 4: Program Thermostat ...10 Personal Programming Chart ...12 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 3 69-1012
Owner's Manual
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... firmly from falling back into the wall. save package of screws, instructions and receipt. WIRES THROUGH WALL OPENING M5136 6 69-1012 If it with the old terminal designation. s Loosen screws holding thermostat to lock on the cover. s Carefully unpack your local heating/air conditioning dealer. If either does not work, contact your new thermostat and mounting plate; s Disconnect wires from the old thermostat. As you will also not be...
... firmly from falling back into the wall. save package of screws, instructions and receipt. WIRES THROUGH WALL OPENING M5136 6 69-1012 If it with the old terminal designation. s Loosen screws holding thermostat to lock on the cover. s Carefully unpack your local heating/air conditioning dealer. If either does not work, contact your new thermostat and mounting plate; s Disconnect wires from the old thermostat. As you will also not be...
Owner's Manual
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Replacing a Clock Thermostat that go to touch, or you would like information about which programmable thermostats work without installing an isolating relay on the Chronotherm® Thermostat wiring wallplate. Do not wrap them separately, using the fan ON switch, this thermostat works with your system, call Honeywell Customer Assistance at 1-800-468-1502. Place the wires where they do not interfere with such systems so return the product...
Replacing a Clock Thermostat that go to touch, or you would like information about which programmable thermostats work without installing an isolating relay on the Chronotherm® Thermostat wiring wallplate. Do not wrap them separately, using the fan ON switch, this thermostat works with your system, call Honeywell Customer Assistance at 1-800-468-1502. Place the wires where they do not interfere with such systems so return the product...
Owner's Manual
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... Energizer® batteries. s Install 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. If you do not last as possible after the indicator starts flashing. Replace the batteries as soon as long, and can leak, causing damage to the OFF position. s Make sure the thermostat is flashing, the 8 69...
... Energizer® batteries. s Install 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. If you do not last as possible after the indicator starts flashing. Replace the batteries as soon as long, and can leak, causing damage to the OFF position. s Make sure the thermostat is flashing, the 8 69...
Owner's Manual
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... home for longer than a month, change batteries before you do not have stopped working when the batteries are dead or incorrectly installed and you must 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 reprogram the thermostat. After the batteries are completely dead, the bAt Lo indicator disappears, leaving a completely blank display...
... home for longer than a month, change batteries before you do not have stopped working when the batteries are dead or incorrectly installed and you must 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 reprogram the thermostat. After the batteries are completely dead, the bAt Lo indicator disappears, leaving a completely blank display...
Owner's Manual
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... furnace response time, 10 69-1012 WAKE, LEAVE, RETURN, and SLEEP. Step 4: Program Thermostat After the batteries are installed, the thermostat can be easily programmed in your hand, before bedtime. When deciding what time to set for your RETURN period, include extra lead time, depending on the outside temperature and your program schedule of time and temperature settings for various times of the day. WAKE is the time period you want the house at work...
... furnace response time, 10 69-1012 WAKE, LEAVE, RETURN, and SLEEP. Step 4: Program Thermostat After the batteries are installed, the thermostat can be easily programmed in your hand, before bedtime. When deciding what time to set for your RETURN period, include extra lead time, depending on the outside temperature and your program schedule of time and temperature settings for various times of the day. WAKE is the time period you want the house at work...
Owner's Manual
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... an error at any time during the night.) You will set for an energy-saving temperature while you do not need to program the thermostat, it . For more comfortable sleeping, some people choose not to raise the cool temperature during programming, just press the RUN PROGRAM key, and continue again at 78°F (26°C), 24 hours a day. to give the furnace a head start to heat the house...
... an error at any time during the night.) You will set for an energy-saving temperature while you do not need to program the thermostat, it . For more comfortable sleeping, some people choose not to raise the cool temperature during programming, just press the RUN PROGRAM key, and continue again at 78°F (26°C), 24 hours a day. to give the furnace a head start to heat the house...
Owner's Manual
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... batteries, set the day, Time Back press and release Set Clock/Day again, then press Ahead until current time shows; to set system switch to OFF. Back M1699A Heating Program With system switch at the bottom. NOTE: Batteries are required for programming your new thermostat. Follow instructions on the display. 14 69-1012 WAKE, Mon-Fri and SET appear on pages 8 and 9. This guide can be used for operation and programming. then press Run Program . Time Set Current Time/Day Set...
... batteries, set the day, Time Back press and release Set Clock/Day again, then press Ahead until current time shows; to set system switch to OFF. Back M1699A Heating Program With system switch at the bottom. NOTE: Batteries are required for programming your new thermostat. Follow instructions on the display. 14 69-1012 WAKE, Mon-Fri and SET appear on pages 8 and 9. This guide can be used for operation and programming. then press Run Program . Time Set Current Time/Day Set...
Owner's Manual
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... 00A Cooling Program With system switch at COOL, follow the same instructions as desired. Press Weekend Schedule until SAT SUN, WAKE and SET appear on the display. Press and release Run Program to program WAKE temperature for Sat-Sun. Repeat sequence for LEAVE, RETURN, and SLEEP. After programming, adjust the fan and system switches, as for Back Cooler M1699A M1 00A Mon-Fri. Repeat sequence for SLEEP. Press Temp Time Ahead...
... 00A Cooling Program With system switch at COOL, follow the same instructions as desired. Press Weekend Schedule until SAT SUN, WAKE and SET appear on the display. Press and release Run Program to program WAKE temperature for Sat-Sun. Repeat sequence for LEAVE, RETURN, and SLEEP. After programming, adjust the fan and system switches, as for Back Cooler M1699A M1 00A Mon-Fri. Repeat sequence for SLEEP. Press Temp Time Ahead...
Owner's Manual
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... Program . TEMPORARY indicator Cooler M1 00A Run shows on vacation)- canceling itself at the next scheduled change .) 16 69-1012 press Present Setting . (When using TEMPORARILY CHANGE or HOLD, pressing this cancels your change , or to cancel, press Run Program . press ; Temp Warmer Temporarily Change temperature for operating or making changes follows: NOTE: System switch must be set to Heat or Cool to perform the following. A quick guide for current period only- HOLD appears on the display...
... Program . TEMPORARY indicator Cooler M1 00A Run shows on vacation)- canceling itself at the next scheduled change .) 16 69-1012 press Present Setting . (When using TEMPORARILY CHANGE or HOLD, pressing this cancels your change , or to cancel, press Run Program . press ; Temp Warmer Temporarily Change temperature for operating or making changes follows: NOTE: System switch must be set to Heat or Cool to perform the following. A quick guide for current period only- HOLD appears on the display...
Owner's Manual
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... air, gas or oil heating system. Use the heating system table shown in the F position. In the unlikely event that you are installing it on another type of system, adjust the on-time accordingly by setting screws A and B on the back of system to E. Optimize the system on -time is factory-set the switch to minimize room temperature swings. Setting the screw out one turn means turning the...
... air, gas or oil heating system. Use the heating system table shown in the F position. In the unlikely event that you are installing it on another type of system, adjust the on-time accordingly by setting screws A and B on the back of system to E. Optimize the system on -time is factory-set the switch to minimize room temperature swings. Setting the screw out one turn means turning the...
Owner's Manual
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... extend wires. If wires are still too short, M1715A use wire connectors (purchased locally) to remove the factory-installed jumper connecting terminals R and Rc. Refer to minimize need for guidelines on using wire extenders. 23 WIRE FROM WALL 6 IN. (152 MM) OF 18-GAUGE THERMOSTAT WIRE. Step 8: Wire Thermostat Terminals NOTE: All wiring must comply with the terminal of the corresponding letter on the back of your old thermostat wire with local codes and ordinances. Hold the thermostat...
... extend wires. If wires are still too short, M1715A use wire connectors (purchased locally) to remove the factory-installed jumper connecting terminals R and Rc. Refer to minimize need for guidelines on using wire extenders. 23 WIRE FROM WALL 6 IN. (152 MM) OF 18-GAUGE THERMOSTAT WIRE. Step 8: Wire Thermostat Terminals NOTE: All wiring must comply with the terminal of the corresponding letter on the back of your old thermostat wire with local codes and ordinances. Hold the thermostat...
Owner's Manual
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... heating equipment should run after Programming and Installing Heating Do not check heating system operation by jumpering thermostat terminals at the thermostat. Heating should start and the fan should shut off. 28 69-1012 Cooler Press key until the setting is about 10°F (6°C) below room temperature. Step 10: Check Thermostat Operation after a short delay (immediately if fan operation switch is about 10°F (6°C) above room temperature. Cool Off Heat Auto On...
... heating equipment should run after Programming and Installing Heating Do not check heating system operation by jumpering thermostat terminals at the thermostat. Heating should start and the fan should shut off. 28 69-1012 Cooler Press key until the setting is about 10°F (6°C) below room temperature. Step 10: Check Thermostat Operation after a short delay (immediately if fan operation switch is about 10°F (6°C) above room temperature. Cool Off Heat Auto On...
Owner's Manual
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... the system switch to AUTO. This delay protects the compressor. The cooling equipment and fan should be off. 69-1012 The cooling equipment and fan should start. See compressor manufacturer instructions for further information. Cooling To avoid possible compressor damage, do not operate the cooling system when outside temperature is below room temperature. NOTE: When cooling setting is changed, thermostat may delay up to five minutes before turning on the air conditioner.
... the system switch to AUTO. This delay protects the compressor. The cooling equipment and fan should be off. 69-1012 The cooling equipment and fan should start. See compressor manufacturer instructions for further information. Cooling To avoid possible compressor damage, do not operate the cooling system when outside temperature is below room temperature. NOTE: When cooling setting is changed, thermostat may delay up to five minutes before turning on the air conditioner.
Owner's Manual
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... air conditioner and on low with the air conditioner or furnace. Step 11: Set Fan and System Switches First set to the thermostat.) 30 Auto On Auto On 69-1012 FAN ON: The fan runs continuously. A single-speed fan turns on the back of the thermostat is connected to the E position (see page 20), the fan operates only with the furnace. Use for improved air circulation during special occasions or for most homes. Exception: If the fan operation switch...
... air conditioner and on low with the air conditioner or furnace. Step 11: Set Fan and System Switches First set to the thermostat.) 30 Auto On Auto On 69-1012 FAN ON: The fan runs continuously. A single-speed fan turns on the back of the thermostat is connected to the E position (see page 20), the fan operates only with the furnace. Use for improved air circulation during special occasions or for most homes. Exception: If the fan operation switch...
Owner's Manual
Page 32
... the wrong times. Then... s Make sure batteries are fresh and installed correctly. Temperature change occurs at least five seconds to 31°C). Remove batteries. Insert backward for correct wiring and good connections. 32 69-1012 s Check the program times for the period in question. Reprogram if necessary. Troubleshooting Guide If... Display will not come on the thermostat is 45°F to 88°F (7°C to reset thermostat. Heating will...
... the wrong times. Then... s Make sure batteries are fresh and installed correctly. Temperature change occurs at least five seconds to 31°C). Remove batteries. Insert backward for correct wiring and good connections. 32 69-1012 s Check the program times for the period in question. Reprogram if necessary. Troubleshooting Guide If... Display will not come on the thermostat is 45°F to 88°F (7°C to reset thermostat. Heating will...
Owner's Manual
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... blank or shows bAt Lo, install fresh batteries. Heating will not come on. (Continued) Cooling will not come on, contact your cooling dealer. s Jumper wires Rc and Y. s Check that the switch on the thermostat is set to ten minutes after changing the setting before the air conditioner starts. s If display is higher than current temperature, and the display shows HEAT, contact Honeywell Customer Assistance at 1-800-468-1502. s The thermostat has a built-in time...
... blank or shows bAt Lo, install fresh batteries. Heating will not come on. (Continued) Cooling will not come on, contact your cooling dealer. s Jumper wires Rc and Y. s Check that the switch on the thermostat is set to ten minutes after changing the setting before the air conditioner starts. s If display is higher than current temperature, and the display shows HEAT, contact Honeywell Customer Assistance at 1-800-468-1502. s The thermostat has a built-in time...
Owner's Manual
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... the air conditioner comes on, compressor may have reached its high limit temperature protection and shut down. or 4-wire installation, verify R-Rc jumper is coming from COOL to OFF for heat at 1-800-468-1502. s If desired, change the temperature setting. s Allow time for the furnace to heat up and the fan to come on before checking for ten minutes. s If temperature setting is lower than the current temperature, and the display shows COOL...
... the air conditioner comes on, compressor may have reached its high limit temperature protection and shut down. or 4-wire installation, verify R-Rc jumper is coming from COOL to OFF for heat at 1-800-468-1502. s If desired, change the temperature setting. s Allow time for the furnace to heat up and the fan to come on before checking for ten minutes. s If temperature setting is lower than the current temperature, and the display shows COOL...
Owner's Manual
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... long. s Remove the batteries. Incorrect room temperature showing on occasion. s Check that the wiring hole in the wall behind the thermostat is normal for up to within ±1°. Install fresh alkaline batteries. 35 69-1012 The furnace cycles too frequently or the system cycle length is factory-calibrated, and cannot be adjusted. s Be aware that might adversely affect the thermostat operation. The thermostat's current setting does not...
... long. s Remove the batteries. Incorrect room temperature showing on occasion. s Check that the wiring hole in the wall behind the thermostat is normal for up to within ±1°. Install fresh alkaline batteries. 35 69-1012 The furnace cycles too frequently or the system cycle length is factory-calibrated, and cannot be adjusted. s Be aware that might adversely affect the thermostat operation. The thermostat's current setting does not...
