Owner's Manual
Page 1
Owner's Manual CT31 Low-voltage Thermostat Getting started Check to make sure your package includes the following items: CT31 thermostat Cover plate Wire labels Caution card Wall anchors and mounting screws (2 each) Before you begin, make sure you have: • Screwdriver • Hammer • Level (optional) • Pencil • Drill bit (3/16" for drywall, 7/32" for plaster) ® U.S. Registered Trademark. All rights reserved. Copyright © 2005 Honeywell International Inc. Patents pending.
Owner's Manual CT31 Low-voltage Thermostat Getting started Check to make sure your package includes the following items: CT31 thermostat Cover plate Wire labels Caution card Wall anchors and mounting screws (2 each) Before you begin, make sure you have: • Screwdriver • Hammer • Level (optional) • Pencil • Drill bit (3/16" for drywall, 7/32" for plaster) ® U.S. Registered Trademark. All rights reserved. Copyright © 2005 Honeywell International Inc. Patents pending.
Owner's Manual
Page 2
... to a terminal marked "C" or "C1" do not count that wire in your total. Do you have purchased the wrong replacement thermostat. 2 You may not be compatible with wires attached. If you purchase right thermostat? Stop installation and call 1-800-468-1502 for instructions regarding recycling ...and proper disposal. If so, see mercury notice below. Did you have 5 or more wires, your new thermostat may have 5 or more wires? Contact your old thermostat in the trash if it contains mercury in place Is there a sealed tube containing mercury? If the ...
... to a terminal marked "C" or "C1" do not count that wire in your total. Do you have purchased the wrong replacement thermostat. 2 You may not be compatible with wires attached. If you purchase right thermostat? Stop installation and call 1-800-468-1502 for instructions regarding recycling ...and proper disposal. If so, see mercury notice below. Did you have 5 or more wires, your new thermostat may have 5 or more wires? Contact your old thermostat in the trash if it contains mercury in place Is there a sealed tube containing mercury? If the ...
Owner's Manual
Page 3
... the old wallplate only after all wires are labeled. IGNORE WIRE COLORS: Use only letter designations to disconnect wires one by one.As you disconnect each wire Do not let wires fall into wall opening . Be careful not to let loose wires fall into the wall opening ! CT31 Low-voltage Thermostat Label wires and remove old wallplate Use a screwdriver...
... the old wallplate only after all wires are labeled. IGNORE WIRE COLORS: Use only letter designations to disconnect wires one by one.As you disconnect each wire Do not let wires fall into wall opening . Be careful not to let loose wires fall into the wall opening ! CT31 Low-voltage Thermostat Label wires and remove old wallplate Use a screwdriver...
Owner's Manual
Page 4
... by your system. Labels don't match? See note If this wire is present, you cannot use this thermostat with same letter on thermostat, see table below. Optional cover plate Thermostat base Connect wires 1 Match each labeled wire with your old thermostat). 4 Pull wires through thermostat base and insert screws. Existing wires R • RH • 4 • V W • W1 • H Y • Y1...
... by your system. Labels don't match? See note If this wire is present, you cannot use this thermostat with same letter on thermostat, see table below. Optional cover plate Thermostat base Connect wires 1 Match each labeled wire with your old thermostat). 4 Pull wires through thermostat base and insert screws. Existing wires R • RH • 4 • V W • W1 • H Y • Y1...