Owner's Manual
Page 1
...: CT54 (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); select models; for plaster) TURN OFF POWER at heating/cooling system (or fuse/circuit-breaker panel). Old thermostat Cover M23786 ® U.S. Remove cover and thermostat, but leave wallplate with wires attached. Copyright © 2009 Honeywell International Inc. Leave...
...: CT54 (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); select models; for plaster) TURN OFF POWER at heating/cooling system (or fuse/circuit-breaker panel). Old thermostat Cover M23786 ® U.S. Remove cover and thermostat, but leave wallplate with wires attached. Copyright © 2009 Honeywell International Inc. Leave...
Owner's Manual
Page 2
... old thermostat. (Adhesive labels are supplied in your old thermostat has 7 or more wires (not counting terminals C or C1), you may have purchased the wrong replacement thermostat. Stop now and call 1-800-468-1502 for advice. M23789 69-2040EFS-01 2 M23790 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...
... old thermostat. (Adhesive labels are supplied in your old thermostat has 7 or more wires (not counting terminals C or C1), you may have purchased the wrong replacement thermostat. Stop now and call 1-800-468-1502 for advice. M23789 69-2040EFS-01 2 M23790 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...
Owner's Manual
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... for plaster). 2. Pull wires through thermostat base and insert screws. If labels do not use. [3] Do not use [3] CT50/CT53/CT54 Wiring CT50/CT53/CT54 • 2-wire heat-only system: Connect one wire to R terminal, one wire to both R and Rc terminals, remove the metal jumper. [2] Do not connect both O and B if you have a heat pump. CT51/CT55 Wiring CT51/CT55 M23792 [1] If wires will be connected to W terminal. Connect only the O wire. English: Page 1 •...
... for plaster). 2. Pull wires through thermostat base and insert screws. If labels do not use. [3] Do not use [3] CT50/CT53/CT54 Wiring CT50/CT53/CT54 • 2-wire heat-only system: Connect one wire to R terminal, one wire to both R and Rc terminals, remove the metal jumper. [2] Do not connect both O and B if you have a heat pump. CT51/CT55 Wiring CT51/CT55 M23792 [1] If wires will be connected to W terminal. Connect only the O wire. English: Page 1 •...
Owner's Manual
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... gently until the cover snaps into place. 2. CT50 Series • Owner's Manual Set fan operation switch (CT51/CT55) Move the switch to the proper setting for your system: F: For gas or oil heating systems, leave the fan operation switch in 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 control the fan in a call...
... gently until the cover snaps into place. 2. CT50 Series • Owner's Manual Set fan operation switch (CT51/CT55) Move the switch to the proper setting for your system: F: For gas or oil heating systems, leave the fan operation switch in 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 control the fan in a call...
Owner's Manual
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... whether a replacement product can be free from defects in the possession of incidental or consequential damages, so this product to be sent to set desired indoor temperature. Do not operate cooling system when outdoor temperature is defective, (i) return it is shown by Honeywell that the defect or malfunction was in the workmanship or materials, under normal use and service, for a period...
... whether a replacement product can be free from defects in the possession of incidental or consequential damages, so this product to be sent to set desired indoor temperature. Do not operate cooling system when outdoor temperature is defective, (i) return it is shown by Honeywell that the defect or malfunction was in the workmanship or materials, under normal use and service, for a period...
Owner's Manual
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... le site Web http://DIYthermostats.honeywell.com ou vous adresser aux Services à la clientèle de Honeywell en composant le 1 800 468-1502 ¿Necesita ayuda? on recycled paper containing at 1-800-468-1502 Besoin d'aide? Registered Trademark. © 2009 Honeywell International Inc. 69-2040EFS-01 M.S. CT50 Series • Owner's Manual Need Help? Rev. 08-09 For assistance...
... le site Web http://DIYthermostats.honeywell.com ou vous adresser aux Services à la clientèle de Honeywell en composant le 1 800 468-1502 ¿Necesita ayuda? on recycled paper containing at 1-800-468-1502 Besoin d'aide? Registered Trademark. © 2009 Honeywell International Inc. 69-2040EFS-01 M.S. CT50 Series • Owner's Manual Need Help? Rev. 08-09 For assistance...