Wire - Honeywell Round CT87A Installation Instructions Manual

CT87A,B,J ROUND® THERMOSTAT
6
Wire the thermostat
1. Use the wiring cross-reference table below to match each old
2. Strip the wire insulation as needed to fit the wires underneath the ter-
3. Loosen the terminal screws and slip each wire beneath its matching
4. Securely tighten the terminal screws.
5. Push any excess wire back into the wall.
69-0274-6
thermostat wire with its corresponding terminal on the CT87 wallplate
or subbase. See Fig. 8 through 13 wiring diagrams.
Wire Label
R, RH, 4, V
Rc, R
W, W , H
1
Y, Y , M
1
G, F
B
O
See Fig. 13
*Never attach wires to both the B and O terminals.
minal screws (Fig. 7).
Fig. 7. Fitting wires under the terminal screws.
FOR STRAIGHT
CONNECTION—
STRIP 5/16 in. [8 mm]
terminal.
Wiring Cross-reference
Connect to Connect to
CT87A
R RH
Rc
W W
Y Y
G
See Fig. 9
FOR WRAPAROUND
CONNECTION—
STRIP 7/16 in. [11 mm]
BARRIER
6
Connect to
CT87B CT87J
R
W
Y
G
B*
O*
P
M1279