Zone Sensor Options; Zone Sensor Installation; Location Considerations - Trane BCHE Installation, Operation And Maintenance Manual

Zone Sensor Options

A variety of wall-mounted zone sensors are available for
design flexibility. Zone sensors have an internal thermistor
Figure 61. Wall-mounted zone sensor with
occupied/unoccupied, COMM (Digit 38 = A)
Figure 64. Air-Fi Wireless Communications
Sensor (WCS) with setpoint, OALMH (UC400-B
only) (Digit 38 = E)

Zone Sensor Installation

Location Considerations

When selecting a location for the zone sensor, avoid the
following:
• Dead spots, such as behind doors, projection screens,
or in corners that do not allow free air circulation.
• Air drafts from stairwells, outside doors, or unsectioned
hollow walls.
• Airflow from adjacent zones or other units.
• Unheated or uncooled spaces behind the controller,
such as outside walls or unoccupied spaces.
• Concealed pipes, air ducts, or chimneys in partition
spaces behind the controller.
• Areas in the direct airstream of air diffusers.
BCX-SVX002A-EN
and operate on 24 Vac. Options with setpoint knobs are
available in Fahrenheit or Celsius.
Figure 62. Wall-mounted zone sensor with
setpoint dial, OALMH, occupied/unoccupied,
COMM (Digit 38 = C)
Figure 65. Wall-mounted fan speed switch
(Digit 38 = F)
•
•
•
•
•
•
•
Figure 63. Wall-mounted wired display sensor
(WDS) with setpoint adjustment, OALMH (Digit
38 = D)
Exterior walls and other walls that have a temperature
differential between the two sides.
Areas that are close to heat sources such as sunlight,
appliances, concealed pipes, chimneys, or other heat-
generating equipment.
Walls that are subject to high vibration.
Areas with high humidity.
High traffic areas (to reduce accidental damage or
tampering).
Metal barriers between the receiver and the sensor (for
example, plastered walls with metal lathe or metal roof
decks).
Thick, solid concrete walls between the receiver and
the sensor.
Installation - Controls
71