C7089OUTDOOR SENSOR
Wiring
CAUTION
Electrical Interference (Noise) Hazard.
Can cause erratic system operation.
Keep wiring at least one foot away from large
inductive loads such as motors, line starters,
lighting ballasts and large power distribution
panels.
Use shielded cable to reduce interference when
rerouting is not possible.
IMPORTANT
Erratic temperature readings from a sensor can
occur as a result of any of the wiring practices
described below. Avoid these practices to
assure correct operation. Use shielded cable to
reduce interference if rerouting of sensor widng
is not possible
-- Be sure wires have a cable separate from the
thermostat cable.
-- Do not route temperature sensor wiring with
building power wiring, next to control contactors
or near light dimming circuits, electric motors or
welding equipment.
-- Avoid poor wiring connections.
-- Avoid intermittent or missing building earth
ground.
CAUTION
Electrical Shock Hazard.
Can cause electrical shock or equipment
damage.
Disconnect power supply before connecting
wiring.
Wiring must comply with applicable codes, ordinances
and regulations:
1. Wire the C7089 Outdoor Sensor to $1 and $2
terminals on the thermostat. If leadwire provided
with C7089 is not long enough (60 in.), run a cable
to a hole at C7089 location.
a. Using color-coded, 18-gauge thermostat wire is
recommended. For example of general wiring
of C7089, see Fig. 2.
b. Pigtail wiring can be used.
2. Mount C7089 in its mounting clip.
3. Plug wiring hole using nonhardening caulk or putty.
WIRING HOLE
THROUGH
Z_STRUCTURE
z_USE APPROPRIATEMOUNTINGMEANS FORTHE
TYPE OFSTRUCTURE.
Z_ PLUGWIRING HOLEWITHNON-HARDENINGCAULK
ORPUTTY. M_997o
Fig. 2. Wiring C7089 Outdoor Sensor to thermostat.
69-1709EFS 2
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