Owner's Manual
Page 1
... © 2009 Honeywell International Inc. Owner's Manual English: Page 1 Mode d'emploi Français : Page 6 Manual de Uso Español: Página 11 M23785 CT50 Series Thermostat Vertical Mount: CT50 (24 Vac heating systems) CT51 (24 Vac heating and cooling systems) CT53 (750 mV or 12Vdc heating systems) Horizontal Mount: CT54 (24 Vac heating systems) CT55 (24 Vac heating and cooling systems) Temperature Control Range • 45...
... © 2009 Honeywell International Inc. Owner's Manual English: Page 1 Mode d'emploi Français : Page 6 Manual de Uso Español: Página 11 M23785 CT50 Series Thermostat Vertical Mount: CT50 (24 Vac heating systems) CT51 (24 Vac heating and cooling systems) CT53 (750 mV or 12Vdc heating systems) Horizontal Mount: CT54 (24 Vac heating systems) CT55 (24 Vac heating and cooling systems) Temperature Control Range • 45...
Owner's Manual
Page 2
... the wall opening ! Level base if desired. 3. Mark positions of both screw holes. For CT50/CT53/CT54: If your thermostat package.) Remove the old wallplate only after all wires are supplied in your old thermostat has 3 or more wires (not counting terminals C or C1), you may have purchased the wrong replacement thermostat. CT50 Series • Owner's Manual Label wires and remove old wallplate Use a screwdriver to identify wire types...
... the wall opening ! Level base if desired. 3. Mark positions of both screw holes. For CT50/CT53/CT54: If your thermostat package.) Remove the old wallplate only after all wires are supplied in your old thermostat has 3 or more wires (not counting terminals C or C1), you may have purchased the wrong replacement thermostat. CT50 Series • Owner's Manual Label wires and remove old wallplate Use a screwdriver to identify wire types...
Owner's Manual
Page 3
... on thermostat, see table below. Existing wires Connect to: R • RH • 4 • V Terminal "R" [1] Rc Terminal "Rc" [1] O Terminal "O" [2] B Terminal "B" [2] G • F Terminal "G" W • W1 • H Terminal "W" Y • Y1 • M Terminal "Y" C • X • B Do not use C, X or B. Use hammer to W terminal. Match each labeled wire with wall. 3. Use a screwdriver to both R and Rc terminals, remove the metal jumper. [2] Do not connect both O and B if you have a heat pump. Labels don't match? Connect only the O wire. Drill...
... on thermostat, see table below. Existing wires Connect to: R • RH • 4 • V Terminal "R" [1] Rc Terminal "Rc" [1] O Terminal "O" [2] B Terminal "B" [2] G • F Terminal "G" W • W1 • H Terminal "W" Y • Y1 • M Terminal "Y" C • X • B Do not use C, X or B. Use hammer to W terminal. Match each labeled wire with wall. 3. Use a screwdriver to both R and Rc terminals, remove the metal jumper. [2] Do not connect both O and B if you have a heat pump. Labels don't match? Connect only the O wire. Drill...
Owner's Manual
Page 4
... Series • Owner's Manual Set fan operation switch (CT51/CT55) Move the switch to the proper setting for heat). E: Change the switch to the proper setting for your system: F: For gas or oil heating systems, leave the fan operation switch in this factory-set position (for systems that allow the thermostat to 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 this setting for heat pump or electric heat systems. (This setting is...
... Series • Owner's Manual Set fan operation switch (CT51/CT55) Move the switch to the proper setting for heat). E: Change the switch to the proper setting for your system: F: For gas or oil heating systems, leave the fan operation switch in this factory-set position (for systems that allow the thermostat to 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 this setting for heat pump or electric heat systems. (This setting is...
Owner's Manual
Page 5
... to repair or replace the product within the terms stated above. Some states do not allow limitations on . • On: Fan runs continuously. This warranty shall not apply if it (at Honeywell's option). Honeywell's sole responsibility shall be to you . System switch (select models) • Heat: Controls the heating system. • Off: All systems are off. • Cool: Controls the cooling system (CT51/ CT55). Temperature setting Adjust to...
... to repair or replace the product within the terms stated above. Some states do not allow limitations on . • On: Fan runs continuously. This warranty shall not apply if it (at Honeywell's option). Honeywell's sole responsibility shall be to you . System switch (select models) • Heat: Controls the heating system. • Off: All systems are off. • Cool: Controls the cooling system (CT51/ CT55). Temperature setting Adjust to...
Owner's Manual
Page 16
... aux Services à la clientèle de Honeywell en composant le 1 800 468-1502 ¿Necesita ayuda? Consulte sobre este producto en 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...
... aux Services à la clientèle de Honeywell en composant le 1 800 468-1502 ¿Necesita ayuda? Consulte sobre este producto en 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...