2
2
Removing an existing thermostat
1.
Disconnect the power to the control transformer.
2.
Remove the cover to the existing thermostat.
3.
Disconnect the wires going to each terminal on the thermostat. Label each wire with the letter or number
at the terminal.
4.
Remove the existing plate or base from the wall.
MOUNTING
When mounting the RC-90BZ, grasp the thermostat by the sides, avoiding the keys, and unsnap the base from
the face.
Holding the base to the wall so that the word "TOP" is upright and facing you:
1.
Mark the two mounting holes on the wall using a pencil.
2.
Drill a hole using a 3/16" bit at each mounting hole marking.
3.
Install the two wall anchors supplied.
4.
Slide the system wires through the opening in the base.
5.
Mount the base to the wall using the two #6 x 1/2" self-tapping screws supplied -
See
Figure 1
.
Figure 1
