Owner's Manual
Page 1
...• Wire labels Remove your local waste management authority for garages or other outbuildings. Old thermostat Cover M23786 ® U.S. Copyright © 2009 Honeywell International Inc. for proper disposal instructions. 69-2040EFS-01 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 ...
...• Wire labels Remove your local waste management authority for garages or other outbuildings. Old thermostat Cover M23786 ® U.S. Copyright © 2009 Honeywell International Inc. for proper disposal instructions. 69-2040EFS-01 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 ...
Owner's Manual
Page 2
...your old thermostat. (Adhesive labels are supplied in your thermostat package.) Remove the old wallplate only after all wires are labeled. CT50/CT53/CT54 CT51/CT55 M23787 M23788 IGNORE WIRE COLORS: Use only letter designations to let loose wires fall into the wall opening ! Stop now and call... advice. Stop now and call 1-800-468-1502 for advice. Do not let wires fall into wall opening . Mark mounting position CT50/CT53/CT54 For CT51/CT55: If your old thermostat has 3 or more wires (not counting terminals C or C1), you may have purchased the wrong replacement ...
...your old thermostat. (Adhesive labels are supplied in your thermostat package.) Remove the old wallplate only after all wires are labeled. CT50/CT53/CT54 CT51/CT55 M23787 M23788 IGNORE WIRE COLORS: Use only letter designations to let loose wires fall into the wall opening ! Stop now and call... advice. Stop now and call 1-800-468-1502 for advice. Do not let wires fall into wall opening . Mark mounting position CT50/CT53/CT54 For CT51/CT55: If your old thermostat has 3 or more wires (not counting terminals C or C1), you may have purchased the wrong replacement ...
Owner's Manual
Page 3
... don't match? 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... 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. CT51/CT55 Wiring CT51/CT55 M23792 [1] If wires will be connected to W terminal. Connect only the O wire.
... don't match? 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... 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. CT51/CT55 Wiring CT51/CT55 M23792 [1] If wires will be connected to W terminal. Connect only the O wire.