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VCCX2 Controller Technical Guide
E-BUS Horizontal or Vertical Outdoor
Air Temperature & Humidity Sensor
The ASM01836 (Horizontal) or ASM01838 (Vertical) E-BUS
Outdoor Air Temperature & Humidity Sensor connects to the
VCCX2 Controller. A 25-foot EBC E-BUS cable (provided)
plugs into the sensor’s attached 3-foot cable and then plugs
into the E-BUS port of the VCCX2 Controller or other E-BUS
Expansion Board. The sensor should be mounted in the upright
position as shown in an area that is protected from the elements
and direct sunlight. See Figure 17, this page for details.
CAUTION: Be sure to mount the Outdoor Air Temperature
& Humidity Sensor in an area that is not
exposed to direct sunlight. The shaded area
under the HVAC unit rain hood is normally
a good location. Unused conduit opening(s)
must have closure plugs installed and must
be coated with sealing compound to provide
a rain-tight seal. Water can damage the sensor.
NOTE: If using multiple E-BUS Sensors or Modules, the
E-BUS Hub (ASM01635 or G033970) or E-BUS
Adapter Board (ASM01878) may be required.
Figure 17: E-BUS Outdoor Air Temperature & Humidity Sensor Wiring
WIRING
E-BUS Outdoor Air Temperature and Humidity Sensor
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