Owner's Manual
Page 1
CT2700 An Electronic Round™ Programmable Thermostat USER'S GUIDE MERCURY SWITCH Programmable Heat and/or Cool Low Voltage (20 to 30 Vac) Thermostat and Wallplate Model CT2700 Congratulations on the purchase of this thermostat to Honeywell Customer Assistance at 1-800-468-1502, Monday - Direct any questions concerning the application of your system. Friday 7:00 a.m. - 5:30 p.m., Central time. at 1-800-468-1502. ®U.S. Registered Trademark Copyright © 1997 Honeywell Inc. • • All...
CT2700 An Electronic Round™ Programmable Thermostat USER'S GUIDE MERCURY SWITCH Programmable Heat and/or Cool Low Voltage (20 to 30 Vac) Thermostat and Wallplate Model CT2700 Congratulations on the purchase of this thermostat to Honeywell Customer Assistance at 1-800-468-1502, Monday - Direct any questions concerning the application of your system. Friday 7:00 a.m. - 5:30 p.m., Central time. at 1-800-468-1502. ®U.S. Registered Trademark Copyright © 1997 Honeywell Inc. • • All...
Owner's Manual
Page 2
... avoid compressor damage, do not wrap them separately using electrical tape; Not compatible with the old terminal designation. CROSS-RECESSED SCREWDRIVER HAND OR POWER DRILL WITH 3/16 INCH DRILL BIT, IF NEEDED TO DRILL HOLES IN WALL Loosen screws holding thermostat to subbase, wallplate, to avoid interfering with the new thermostat operation. If there are six or more wires connected to the thermostat (excluding clock wires attached to...
... avoid compressor damage, do not wrap them separately using electrical tape; Not compatible with the old terminal designation. CROSS-RECESSED SCREWDRIVER HAND OR POWER DRILL WITH 3/16 INCH DRILL BIT, IF NEEDED TO DRILL HOLES IN WALL Loosen screws holding thermostat to subbase, wallplate, to avoid interfering with the new thermostat operation. If there are six or more wires connected to the thermostat (excluding clock wires attached to...
Owner's Manual
Page 3
... cover plate and wallplate, pulling wires through 6 for some hot water (zoned) heating systems have three wires for heating only and can operate the fan using the FAN ON switch, this thermostat works with the wall. M12543 Fig. 5. Mounting decorator cover plate and wallplate to Figs. 4 through the wiring opening. CT2700 wiring diagram, 3-wire, cool-only system. M12525 Fig. 4. CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT CO N O N A F AUTO Three Thermostat Wires If you install an isolating relay on the wall. The thermostat will work...
... cover plate and wallplate, pulling wires through 6 for some hot water (zoned) heating systems have three wires for heating only and can operate the fan using the FAN ON switch, this thermostat works with the wall. M12543 Fig. 5. Mounting decorator cover plate and wallplate to Figs. 4 through the wiring opening. CT2700 wiring diagram, 3-wire, cool-only system. M12525 Fig. 4. CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT CO N O N A F AUTO Three Thermostat Wires If you install an isolating relay on the wall. The thermostat will work...
Owner's Manual
Page 4
... matching terminal. See Fig. 8. CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT All wiring must comply with insulation to help prevent drafts from adversely affecting thermostat operation. Refer to the masking tape labels you removed your local heating and air conditioning contractor. This is the correct setting for wiring connection. The E setting allows the fan to the E (electric) position. CT2700 methods for most systems. If this system is set the switch to turn on wires...
... matching terminal. See Fig. 8. CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT All wiring must comply with insulation to help prevent drafts from adversely affecting thermostat operation. Refer to the masking tape labels you removed your local heating and air conditioning contractor. This is the correct setting for wiring connection. The E setting allows the fan to the E (electric) position. CT2700 methods for most systems. If this system is set the switch to turn on wires...
Owner's Manual
Page 5
... to normal operational mode within five minutes. 2. Press . End is displayed. 5 69-1085 Press or to change is displayed. If you wish to set for five seconds indicating the end of programming. The thermostat then displays the current time and room PM temperature. 8 OPERATE YOUR THERMOSTAT Display Temperature Setting a. CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT Press the thermostat straight on both sides and pull the thermostat straight out. NOTE: The heating and cooling program times are sleeping. AM...
... to normal operational mode within five minutes. 2. Press . End is displayed. 5 69-1085 Press or to change is displayed. If you wish to set for five seconds indicating the end of programming. The thermostat then displays the current time and room PM temperature. 8 OPERATE YOUR THERMOSTAT Display Temperature Setting a. CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT Press the thermostat straight on both sides and pull the thermostat straight out. NOTE: The heating and cooling program times are sleeping. AM...
Owner's Manual
Page 6
... the heating equipment turns on (on most homes. To exit at too low of the thermostat case. b. The fan should run continuously. and 12- sary to change the heating cycle rate to ON. System Switch The System switch settings control thermostat operation as follows: COOL: The thermostat controls the cooling system. Slide the System switch to COOL and the Fan switch to OFF position. OFF: Both heating and cooling are : ON: The fan runs continuously. CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT Hold Function To hold...
... the heating equipment turns on (on most homes. To exit at too low of the thermostat case. b. The fan should run continuously. and 12- sary to change the heating cycle rate to ON. System Switch The System switch settings control thermostat operation as follows: COOL: The thermostat controls the cooling system. Slide the System switch to COOL and the Fan switch to OFF position. OFF: Both heating and cooling are : ON: The fan runs continuously. CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT Hold Function To hold...
Owner's Manual
Page 7
.... CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT c. d. b. Press once to the normal operational mode. Upon exiting, the temperature setting will not operate No AC power to thermostat. Pressing six times returns the thermostat to exit the Installer Setup. Check power to thermostat. at 52°F (11°C). Heating/cooling equipment inoperative. Check power to heating/cooling equipment: - temperature setting range is configured for exit instructions. Cycles Per Hour a. Celsius Temperature a. Fuse or circuit breaker - Reset System switch. Use or...
.... CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT c. d. b. Press once to the normal operational mode. Upon exiting, the temperature setting will not operate No AC power to thermostat. Pressing six times returns the thermostat to exit the Installer Setup. Check power to thermostat. at 52°F (11°C). Heating/cooling equipment inoperative. Check power to heating/cooling equipment: - temperature setting range is configured for exit instructions. Cycles Per Hour a. Celsius Temperature a. Fuse or circuit breaker - Reset System switch. Use or...
Owner's Manual
Page 8
... or materials, under normal use and service, for a particular purpose is defective or malfunctions, Honeywell shall repair or replace it (at any questions concerning this product. If you . Home and Building Control Honeywell Inc. Honeywell shall not be free from the date of reinstallation costs. Honeywell Plaza P.O. CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT PERCENT OF HEATING COSTS YOU CAN SAVE SAVINGS FOR ONCE-A-DAY 10°F (5°C) DECREASE...
... or materials, under normal use and service, for a particular purpose is defective or malfunctions, Honeywell shall repair or replace it (at any questions concerning this product. If you . Home and Building Control Honeywell Inc. Honeywell shall not be free from the date of reinstallation costs. Honeywell Plaza P.O. CT2700 AN ELECTRONIC ROUND ™ PROGRAMMABLE THERMOSTAT PERCENT OF HEATING COSTS YOU CAN SAVE SAVINGS FOR ONCE-A-DAY 10°F (5°C) DECREASE...
