Owner's Manual
Page 1
... If this thermostat to our Web site at www.honeywell.com/yourhome or call a qualified service technician for compatibility with your home system. Required installation tools/supplies. ® U.S. The CT41A is suitable for instructions regarding recycling and the proper disposal of an old control. 1 PREPARE FOR INSTALLATION Heating/Cooling 15 to 30 Vac...
... If this thermostat to our Web site at www.honeywell.com/yourhome or call a qualified service technician for compatibility with your home system. Required installation tools/supplies. ® U.S. The CT41A is suitable for instructions regarding recycling and the proper disposal of an old control. 1 PREPARE FOR INSTALLATION Heating/Cooling 15 to 30 Vac...
Owner's Manual
Page 2
... screws holding thermostat to keep them from the wall, look at one of a series of numbers representing the (electrical) current rating of the primary control of your local heating/air conditioning dealer. See Fig. 4. Terminal Functions. Old Thermostat Terminal Marking G or F Y or C or M or...BOTTOM MOUNTING HOLE TEMPERATURE SETTING LEVER M3782A Fig. 2. Wrap wires around pencil. ❑ Keep the old thermostat for future reference. CT41A HEATING/COOLING THERMOSTAT 2 REMOVE OLD THERMOSTAT ❑ Test to the matching terminals on the back of the thermostat. WIRES THROUGH WALL...
... screws holding thermostat to keep them from the wall, look at one of a series of numbers representing the (electrical) current rating of the primary control of your local heating/air conditioning dealer. See Fig. 4. Terminal Functions. Old Thermostat Terminal Marking G or F Y or C or M or...BOTTOM MOUNTING HOLE TEMPERATURE SETTING LEVER M3782A Fig. 2. Wrap wires around pencil. ❑ Keep the old thermostat for future reference. CT41A HEATING/COOLING THERMOSTAT 2 REMOVE OLD THERMOSTAT ❑ Test to the matching terminals on the back of the thermostat. WIRES THROUGH WALL...
Owner's Manual
Page 3
...heat anticipator indicator at the furnace. See Fig. 2 for step 2, look on the primary control. See Fig. 5. For electric heat, add the fan relay current, usually 0.2A 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 CURRENT DRAW SHOWS VOLTAGE 0.2 3A0MVPACRATING SHOWS VOLTAGE RATING FROM MAIN...
...heat anticipator indicator at the furnace. See Fig. 2 for step 2, look on the primary control. See Fig. 5. For electric heat, add the fan relay current, usually 0.2A 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 CURRENT DRAW SHOWS VOLTAGE 0.2 3A0MVPACRATING SHOWS VOLTAGE RATING FROM MAIN...
Owner's Manual
Page 4
...and 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. Most problems can prevent operation up to five minutes. ❑ Turn the Fan switch to your... system is below room temperature. NOTE: If your system. 69-0788-2 4 CT41A HEATING/COOLING THERMOSTAT 4 CHECK OUT THERMOSTAT The System switch controls as follows: Auto: fan operates when heating or air conditioning system operates. Do not operate cooling if ...
...and 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. Most problems can prevent operation up to five minutes. ❑ Turn the Fan switch to your... system is below room temperature. NOTE: If your system. 69-0788-2 4 CT41A HEATING/COOLING THERMOSTAT 4 CHECK OUT THERMOSTAT The System switch controls as follows: Auto: fan operates when heating or air conditioning system operates. Do not operate cooling if ...
Owner's Manual
Page 8
www.honeywell.com/yourhome on recycled paper containing at least 10% post-consumer paper fibers. 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. Rev. 10-03 Printed in U.S.A.
www.honeywell.com/yourhome on recycled paper containing at least 10% post-consumer paper fibers. 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. Rev. 10-03 Printed in U.S.A.