Honeywell B Guía De Instalación

69-0274-6

6 

1. Use the wiring cross-reference table below to match each old 

thermostat wire with its corresponding terminal on the CT87 wallplate 

or subbase.  See Fig. 8 through 13 wiring diagrams.  

*Never attach wires to both the B and O terminals.

2. Strip the wire insulation as needed to fit the wires underneath the ter-

minal screws (Fig. 7).

3. Loosen the terminal screws and slip each wire beneath its matching 

terminal. 

4. Securely tighten the terminal screws.

5. Push any excess wire back into the wall.

R, RH, 4, V

R

RH

R

Rc, R

Rc

W, W

1

, H

W

W

W

Y, Y

1

, M

Y

Y

Y

G, F

G

G

B

See Fig. 9

B*

O

O*

See Fig. 13

P

M1279

FOR STRAIGHT
CONNECTION—
STRIP 5/16 in. [8 mm]

FOR WRAPAROUND
CONNECTION—
STRIP 7/16 in. [11 mm]

BARRIER