Honeywell CT87A Owner's Manual - Page 3
Install the cover ring and wallplate or subbase - thermostat instructions
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CT87A,B,J ROUND® THERMOSTAT 5. Label the wires using the wiring labels that came with the CT87. Fig. 2. Labeling wires. Identify each wire using the letter of the terminal on the old thermo- stat (Fig. 2). Do not label the wires by color. 6. Disconnect the wires from the old thermostat and wrap them around a pencil to keep them from falling back into the wall (Fig. 3). M19086 MERCURY NOTICE Fig. 3. Wrapping wires. WIRES THROUGH WALL OPENING If this thermostat is replacing a control that contains mercury in a sealed tube, do not place your old control in the trash. Contact your M20133 local waste management authority for instructions regarding recycling and the proper disposal of this control, or of an old control containing mercury in a sealed tube. 4 Install the cover ring and wallplate or subbase If installing on the wall Refer to Fig. 4 as you work. Fig. 4. Installing wallplate/subbase on the wall (wallplate shown). COVER RING WALLPLATE NO. 4 X 1 INCH SHEET METAL SCREWS (2) 3 THERMOSTAT WIRING OPENING M20188 69-0274-6