Owner's Manual
Page 1
... (24 Vac heating systems) CT55 (24 Vac heating and cooling systems) Temperature Control Range • 45°-95°F (7°-35°C) • 35°-85°F (2°-29°C); Registered Trademark. Leave wallplate in place. Old thermostat Cover M23786 ® U.S. Patents pending. Remove cover and thermostat, but leave wallplate with wires attached. All rights reserved. for plaster) TURN OFF POWER at heating/cooling system (or fuse...
... (24 Vac heating systems) CT55 (24 Vac heating and cooling systems) Temperature Control Range • 45°-95°F (7°-35°C) • 35°-85°F (2°-29°C); Registered Trademark. Leave wallplate in place. Old thermostat Cover M23786 ® U.S. Patents pending. Remove cover and thermostat, but leave wallplate with wires attached. All rights reserved. for plaster) TURN OFF POWER at heating/cooling system (or fuse...
Owner's Manual
Page 2
CT50 Series • Owner's Manual Label wires and remove old wallplate Use a screwdriver to identify wire types. For CT50/CT53/CT54: If your old thermostat has 3 or more wires (not counting terminals C or C1), you may have purchased the wrong replacement thermostat. M23789 69-2040EFS-01 2 M23790 Stop now and call 1-800-468-1502 for advice. CT51/CT55 1. Level base if desired. 3. Mark positions of...
CT50 Series • Owner's Manual Label wires and remove old wallplate Use a screwdriver to identify wire types. For CT50/CT53/CT54: If your old thermostat has 3 or more wires (not counting terminals C or C1), you may have purchased the wrong replacement thermostat. M23789 69-2040EFS-01 2 M23790 Stop now and call 1-800-468-1502 for advice. CT51/CT55 1. Level base if desired. 3. Mark positions of...
Owner's Manual
Page 3
... wire to loosen screw terminals, insert bare wires beneath screws, then tighten screws. 3. M23791 Connect wires 1. English: Page 1 • Français : Page 6 • Español: Página 11 Mount thermostat base 1. Use hammer to both R and Rc terminals, remove the metal jumper. [2] Do not connect both O and B if you have a heat pump. Wrap B wire with electrical tape. 3 69-2040EFS-01 Match each labeled wire with wall...
... wire to loosen screw terminals, insert bare wires beneath screws, then tighten screws. 3. M23791 Connect wires 1. English: Page 1 • Français : Page 6 • Español: Página 11 Mount thermostat base 1. Use hammer to both R and Rc terminals, remove the metal jumper. [2] Do not connect both O and B if you have a heat pump. Wrap B wire with electrical tape. 3 69-2040EFS-01 Match each labeled wire with wall...
Owner's Manual
Page 4
... place. 2. Restore power at the heating/cooling system, or at the fuse/circuit-breaker panel. E: Change the switch to this setting for heat pump or electric heat systems. (This setting is for systems that control the fan in a call for heat, if a fan wire is connected to the G terminal.) Set heat anticipator (select models) Move the adjustment arrow to the proper setting for your system: F: For gas or oil heating systems, leave the fan operation switch in a call for...
... place. 2. Restore power at the heating/cooling system, or at the fuse/circuit-breaker panel. E: Change the switch to this setting for heat pump or electric heat systems. (This setting is for systems that control the fan in a call for heat, if a fan wire is connected to the G terminal.) Set heat anticipator (select models) Move the adjustment arrow to the proper setting for your system: F: For gas or oil heating systems, leave the fan operation switch in a call for...
Owner's Manual
Page 5
... consumer. or (ii) call 1-800-468-1502. If you . English: Page 1 • Français : Page 6 • Español: Página 11 Operation Fan switch (CT51/CT55) • Auto: Fan runs only when heating or cooling system is on how long an implied warranty lasts, so the above . Temperature setting Adjust to repair or replace the product within the terms stated above limitation may...
... consumer. or (ii) call 1-800-468-1502. If you . English: Page 1 • Français : Page 6 • Español: Página 11 Operation Fan switch (CT51/CT55) • Auto: Fan runs only when heating or cooling system is on how long an implied warranty lasts, so the above . Temperature setting Adjust to repair or replace the product within the terms stated above limitation may...
Owner's Manual
Page 16
...honeywell.com or call Honeywell Customer Care toll-free at least 10% post-consumer paper fibers. ® U.S. Pour obtenir de l'aide concernant le produit, veuillez consulter le site Web http://DIYthermostats.honeywell.com ou vous adresser aux Services à la clientèle de Honeywell... http://DIYthermostats.honeywell.com o llamando sin cargo a atención al cliente de Honeywell 1-800-468-1502 Automation and Control Solutions Honeywell International Inc. Registered Trademark. © 2009 Honeywell International Inc. 69-2040EFS-01 M.S. CT50 Series • Owner's Manual Need Help?
...honeywell.com or call Honeywell Customer Care toll-free at least 10% post-consumer paper fibers. ® U.S. Pour obtenir de l'aide concernant le produit, veuillez consulter le site Web http://DIYthermostats.honeywell.com ou vous adresser aux Services à la clientèle de Honeywell... http://DIYthermostats.honeywell.com o llamando sin cargo a atención al cliente de Honeywell 1-800-468-1502 Automation and Control Solutions Honeywell International Inc. Registered Trademark. © 2009 Honeywell International Inc. 69-2040EFS-01 M.S. CT50 Series • Owner's Manual Need Help?