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Remote Temperature/Humidity Sensors
Installation
1. Ensure that the location is not close to a heat or humidity source and
away from direct sunlight, skylights, and windows. When mounting
the sensor outdoors, do not place in direct sunlight, and do not place
where the sensor will be directly exposed to precipitation. Sensors are
suitable for mounting in dry or damp locations as defined by the
National Electrical Code.
2. Locate an area on the wall that is free of miscellaneous wiring and
studs.
3. Make a small hole near the center of the designated mounting site to
verify that the location is suitable.
4. Drill or cut a 1 in (2.54 cm) diameter circular hole in the wall at the
desired position.
5. Route the wires from the thermostat to the sensor. For thermostat
connection details, refer to the latest version of Crestron CHV-TSTAT
& CHV-THSTAT Thermostats Operation and Installation Guide,
Doc. 8163.
NOTE: Crestron strongly recommends low-capacitance twisted pair wire
such as CAT3 (up to 250 ft, 76.2 m) or CAT5 (up to 500 ft, 152.4 m)
network cable when using remote sensors. Maximum distance from
sensor to thermostat is 500 ft, 152.4 m
If multi-conductor cables are used, the leftover conductors must NOT be
used for other purposes and must be left unconnected at both ends.
In situations where ordinary two-conductor thermostat wire (18 to 20
gauge) has been installed, it may be used for runs up to 100 feet (30.48
meters). This is not a preferred method of installation.
Other cable types are satisfactory, provided the total capacitance is less
than 7000 pF.
6. Connect the wires from the thermostat to the 10 in (25.4 cm) sensor
pigtail (22 AWG x12" black/black twisted pair) using wire nuts. The
wires are non-polarized. (Refer to "Hardware Hookup" on page 5).
4 • Remote Temperature/Humidity Sensors
Crestron CHV-RTS/CHV-RTHS
Installation Guide – DOC. 8189A
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