TO
CARRIER
NETWORK "]
CONNECTION/
BLACK(-)
WHITE(GND)
POWER (+)
TO SEPARATE
(-) _ 24-VAC
(GND) JTRANSFORMER
uP UUUUu
RECESSED
MOUNT
Fig. 1 -- System Pilot Wiring
SYSTEM PILOT MOUNTING -- Perform the following to
mount the System Pilot.
1. Before installing System Pilot, turn off all power to
equipment. There may be more than one power source
to disconnect.
2. If an existing thermostat or control is being replaced,
remove existing control from wall and disconnect
wires from existing control. Mark wires for reconnec-
tion to System Pilot. Discard or recycle old thermostat
or control.
NOTE: Mercury is a hazardous waste, if existing
control contains any mercm T, it MUST be disposed of
properly.
3. Select desired System Pilot mounting backplate
(recess mount or surface mount and decorative bezel if
desired).
4. Route wires through large hole in mounting backplate.
Level rear backplate against wall and mark wall
through two mounting holes.
5. Drill two 3h6-in. mounting holes in wall where marked
in Step 4.
6. Secure mounting backplate to wall using two screws
and anchors provided.
7. Adjust length and routing of each wire to reach the
terminal on the connector backplate. Strip l/4-in, of
insulation from each wire.
8. Match and connect thermostat wires to proper termi-
nals on System Pilot backplate. See wiring diagram
Fig. 1.
The connector may be removed from the backplate to
make terminal connection easier. To remove the
connector, use a screwdriver to press the short tabs
above the connector. Do not use the screwdriver to
press the long tab at the bottom of the connector.
To replace the connector, insert the long tab at the
bottom first, then snap in the short tabs at the top.
NOTE: Existing wiring must meet wiring specifica-
tions defined in this book.
9. Push any excess wire into the wall. Seal hole in wall to
prevent any air leaks. Leaks can affect operation.
10. Attach System Pilot to the mounting backplate by
lining up the plastic guides on the back of the control
with the opening on the mounting plastic and pushing.
11. Turn on power to equipment.
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