Observer TSTAT0201CW Installation Manual page 18

b. Disconnect wires from existing thermostat.
c. Discard or recycle old thermostat.
NOTE: Mercury is a hazardous waste, if existing control con-
tains any mercury, it MUST be disposed of properly. The Ob-
server Control does not contain mercury.
®
3. Select Observer Control mounting plastic
4. Route wires through hole in mounting plastic. Level rear
plastic against wall (for aesthetic value only - Observer
Control need not be level to operate properly) and mark
wall through two mounting holes.
5. Drill two 3/16-in (4.8 mm) mounting holes in wall where
marked.
6. Secure mounting plastic to wall using two screws and
anchors provided.
7. Adjust length and routing of each wire to reach each wire
entry on the connector back-plate. Strip 1/4--in (6.4 mm)
of insulation from each wire.
8. Match and connect thermostat wires to proper terminals
on wall control back-plate. See Wiring Diagrams in
Appendix.
9. Push any excess wire into the wall. Seal hole in wall to
prevent any air leaks. Leaks can affect operation.
10. Attach Observer Control to the mounting plastic by lining
up the plastic guides on the back of the control with the
opening on the mounting plastic and push on.
11. Perform installation of all other system equipment (i.e.
humidifier, UV lights, etc.).
12. Turn on power to equipment.
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