Owner's Manual
Page 1
...below. Copyright © 2009 Honeywell International Inc. Registered Trademark. All rights reserved. Patents pending. 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... OFF POWER at heating/cooling system (or fuse/circuit-breaker panel). Leave wallplate in place. MERCURY NOTICE If your old thermostat contains mercury, contact your old thermostat Before you begin, make sure you have: • No. 2 Phillips & small pocket screwdrivers • Hammer •...
...below. Copyright © 2009 Honeywell International Inc. Registered Trademark. All rights reserved. Patents pending. 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... OFF POWER at heating/cooling system (or fuse/circuit-breaker panel). Leave wallplate in place. MERCURY NOTICE If your old thermostat contains mercury, contact your old thermostat Before you begin, make sure you have: • No. 2 Phillips & small pocket screwdrivers • Hammer •...
Owner's Manual
Page 2
...Mark positions of both screw holes. Wrap supplied labels securely around each wire, wrap it with the label matching the letter on your old thermostat. (Adhesive labels are labeled. CT51/CT55 1. M23789 69-2040EFS-01 2 M23790 Stop now and call 1-800-468-1502 for advice. As... each wire. Mark mounting position CT50/CT53/CT54 For CT51/CT55: If your old thermostat has 7 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...
...Mark positions of both screw holes. Wrap supplied labels securely around each wire, wrap it with the label matching the letter on your old thermostat. (Adhesive labels are labeled. CT51/CT55 1. M23789 69-2040EFS-01 2 M23790 Stop now and call 1-800-468-1502 for advice. As... each wire. Mark mounting position CT50/CT53/CT54 For CT51/CT55: If your old thermostat has 7 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...
Owner's Manual
Page 3
... for drywall, 7/32" holes for plaster). 2. CT51/CT55 Wiring CT51/CT55 M23792 [1] If wires will be connected to W terminal. Pull wires through thermostat base and insert screws. M23791 Connect wires 1. Use a screwdriver to tap anchors into the wall opening. English: Page 1 • Français ...: Page 6 • Español: Página 11 Mount thermostat base 1. Wrap B wire with electrical tape. 3 69-2040EFS-01 Use hammer to loosen screw terminals, insert bare wires beneath screws, then tighten screws...
... for drywall, 7/32" holes for plaster). 2. CT51/CT55 Wiring CT51/CT55 M23792 [1] If wires will be connected to W terminal. Pull wires through thermostat base and insert screws. M23791 Connect wires 1. Use a screwdriver to tap anchors into the wall opening. English: Page 1 • Français ...: Page 6 • Español: Página 11 Mount thermostat base 1. Wrap B wire with electrical tape. 3 69-2040EFS-01 Use hammer to loosen screw terminals, insert bare wires beneath screws, then tighten screws...
Owner's Manual
Page 4
... Warm air (high efficiency) Warm air (standard) Electric heat Setting 1.2 0.8 0.8 0.4 0.3 Finish installation 1. E: Change the switch to this factory-set position (for systems that allow the thermostat to the proper setting for heat).
... Warm air (high efficiency) Warm air (standard) Electric heat Setting 1.2 0.8 0.8 0.4 0.3 Finish installation 1. E: Change the switch to this factory-set position (for systems that allow the thermostat to the proper setting for heat).
