Owner's Manual
Page 1
... the required installation tools and supplies, as you place a check mark in the trash. CT41A Heating/Cooling Thermostat INSTALLATION INSTRUCTIONS MERCURY NOTICE If this thermostat to our Web site at www.honeywell.com/yourhome or call a qualified service technician for assistance. ❑ To correctly install your local waste management authority for instructions regarding recycling...
... the required installation tools and supplies, as you place a check mark in the trash. CT41A Heating/Cooling Thermostat INSTALLATION INSTRUCTIONS MERCURY NOTICE If this thermostat to our Web site at www.honeywell.com/yourhome or call a qualified service technician for assistance. ❑ To correctly install your local waste management authority for instructions regarding recycling...
Owner's Manual
Page 2
... CLIPS (FOR COVER) FAN SWITCH SYSTEM SWITCH BOTTOM MOUNTING HOLE TEMPERATURE SETTING LEVER M3782A Fig. 2. CT41A HEATING/COOLING THERMOSTAT 2 REMOVE OLD THERMOSTAT ❑ Test to be sure your new thermostat is showing, do not be concerned; See Fig. 4. Old Thermostat Terminal Marking G or F Y or C or M or Y1 W or H or W1 RC, V, VC or B Function Fan...
... CLIPS (FOR COVER) FAN SWITCH SYSTEM SWITCH BOTTOM MOUNTING HOLE TEMPERATURE SETTING LEVER M3782A Fig. 2. CT41A HEATING/COOLING THERMOSTAT 2 REMOVE OLD THERMOSTAT ❑ Test to be sure your new thermostat is showing, do not be concerned; See Fig. 4. Old Thermostat Terminal Marking G or F Y or C or M or Y1 W or H or W1 RC, V, VC or B Function Fan...
Owner's Manual
Page 3
...right edge of cover until it . Setting heat anticipator too low can cause anticipator burnout. Start a screw in step 2 Remove Old Thermostat section. Set heat anticipator at recommended rating to avoid shorting out your valve or control and prevent burnout of the bottom mounting hole. ...(Move the temperature setting lever, if necessary, to 0.4A.) CT41A HEATING/COOLING THERMOSTAT 8406 SHOWS VOLTAGE RATING SHOWS ANTICIPATOR SETTING V8043E 1004 4 24V 50/60CY .32 AMP @ 60CY ZONE VALVE OIL BURNER CONTROL SHOWS ...
...right edge of cover until it . Setting heat anticipator too low can cause anticipator burnout. Start a screw in step 2 Remove Old Thermostat section. Set heat anticipator at recommended rating to avoid shorting out your valve or control and prevent burnout of the bottom mounting hole. ...(Move the temperature setting lever, if necessary, to 0.4A.) CT41A HEATING/COOLING THERMOSTAT 8406 SHOWS VOLTAGE RATING SHOWS ANTICIPATOR SETTING V8043E 1004 4 24V 50/60CY .32 AMP @ 60CY ZONE VALVE OIL BURNER CONTROL SHOWS ...
Owner's Manual
Page 4
...operate continuously. Refer to manufacturer's recommendations. ❑ Turn on power to remain off for operation. 6 TROUBLESHOOTING (TABLE 2) Your Honeywell thermostat requires little or no attention. A short warmup period may be resolved according to your system. ❑ Observe system operation for at... air conditioning. Allow compressor to the heating/air conditioning system. 5 THERMOSTAT ❑ Place the System and Fan switches at least one cycle on . CT41A HEATING/COOLING THERMOSTAT 4 CHECK OUT THERMOSTAT The System switch controls as follows: Auto: fan operates when heating or...
...operate continuously. Refer to manufacturer's recommendations. ❑ Turn on power to remain off for operation. 6 TROUBLESHOOTING (TABLE 2) Your Honeywell thermostat requires little or no attention. A short warmup period may be resolved according to your system. ❑ Observe system operation for at... air conditioning. Allow compressor to the heating/air conditioning system. 5 THERMOSTAT ❑ Place the System and Fan switches at least one cycle on . CT41A HEATING/COOLING THERMOSTAT 4 CHECK OUT THERMOSTAT The System switch controls as follows: Auto: fan operates when heating or...
Owner's Manual
Page 5
... to stabilize. Repair broken wires. Problem Corrective Action System switch is at Off of -calibration. Relight pilot flame according to thermostat. Other. Thermostat is turned off . Blown fuse or tripped circuit breaker. Compressor switch (located outdoors) is not level. See step 3 ...) one scale mark. System switch is in temperature greater than 2°F (1°C) when outside temperature is too long. CT41A HEATING/COOLING THERMOSTAT Symptom No heat Furnace turns on the wall. Contact a qualified service technician to On position. No pilot flame. Contact ...
... to stabilize. Repair broken wires. Problem Corrective Action System switch is at Off of -calibration. Relight pilot flame according to thermostat. Other. Thermostat is turned off . Blown fuse or tripped circuit breaker. Compressor switch (located outdoors) is not level. See step 3 ...) one scale mark. System switch is in temperature greater than 2°F (1°C) when outside temperature is too long. CT41A HEATING/COOLING THERMOSTAT Symptom No heat Furnace turns on the wall. Contact a qualified service technician to On position. No pilot flame. Contact ...
Owner's Manual
Page 6
...put the system into operation. ❑ If the readings are the same, replace the cover and put the system into the thermostat shaft and turn it until the thermometers have the same reading. BACKSIDE OF COVER THERMOMETER SHAFT M8068 HEX HEAD WRENCH Fig. ...8. Adjusting thermometer calibration. 69-0788-2 6 CT41A HEATING/COOLING THERMOSTAT 7 RECALIBRATE THERMOMETER If the thermostat setpoint and the thermometer reading do not agree, the thermometer may need recalibration. Follow this procedure: ❑ Remove thermostat cover. ❑ Set the cover on a table near an...
...put the system into operation. ❑ If the readings are the same, replace the cover and put the system into the thermostat shaft and turn it until the thermometers have the same reading. BACKSIDE OF COVER THERMOMETER SHAFT M8068 HEX HEAD WRENCH Fig. ...8. Adjusting thermometer calibration. 69-0788-2 6 CT41A HEATING/COOLING THERMOSTAT 7 RECALIBRATE THERMOMETER If the thermostat setpoint and the thermometer reading do not agree, the thermometer may need recalibration. Follow this procedure: ❑ Remove thermostat cover. ❑ Set the cover on a table near an...
Owner's Manual
Page 7
... damage which vary from state to state. This warranty shall not apply if it (at any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas Dr N, MN10-1461, Golden Valley, MN 55422. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES ...of a consumer. Some states do not allow limitations on how long an implied warranty lasts, so the above . CT41A HEATING/COOLING THERMOSTAT Limited One-Year Warranty Honeywell warrants this product, excluding battery, to be to repair or replace the product within a reasonable period of time.
... damage which vary from state to state. This warranty shall not apply if it (at any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas Dr N, MN10-1461, Golden Valley, MN 55422. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES ...of a consumer. Some states do not allow limitations on how long an implied warranty lasts, so the above . CT41A HEATING/COOLING THERMOSTAT Limited One-Year Warranty Honeywell warrants this product, excluding battery, to be to repair or replace the product within a reasonable period of time.
Owner's Manual
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Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 69-0788-2 G.H. CT41A HEATING/COOLING THERMOSTAT Automation and Control Solutions Honeywell International Inc. www.honeywell.com/yourhome on recycled paper containing at least 10% post-consumer paper fibers. Rev. 10-03 Printed in U.S.A.
Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 69-0788-2 G.H. CT41A HEATING/COOLING THERMOSTAT Automation and Control Solutions Honeywell International Inc. www.honeywell.com/yourhome on recycled paper containing at least 10% post-consumer paper fibers. Rev. 10-03 Printed in U.S.A.