Zone Sensor Installation - Trane VUV Installation, Operation And Maintenance Manual

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.
• 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.
Location Considerations for Wireless Zone
Sensors
Placement of the sensor is critical to proper operation (the
receiver is factory mounted). For most installations, barriers
limit proper radio signal strength more than distance. For best
radio transmission range and reliability, mount the receiver and
sensor in line of sight. Where this is not possible, try to
minimize the number of barriers between the pair of devices.
In general, sheetrock walls and ceiling tiles offer little restriction
to the transmission range for the sensor is as follows:
• Open range: 2,500 ft (packet error rate = 2%)
• Usable range: 200 ft
• Typical range: 75 ft
Height Requirements
It is recommended that you mount the back plate a maximum
distance of 54 inches above the floor. If a parallel approach by
a person in a wheelchair is required, reduce the maximum
height to 48 inches.
Note: Consult section 4.27.3 of the 2002 ADA (Americans
with Disability Act) guideline, and local building codes,
for further details regarding wheelchair requirements.
UV-SVX005G-EN
Mounting Surfaces
Using the hardware provided, mount the back plate of the
sensor to a flat surface such as sheetrock or plaster, or an
electrical junction box. The sensor must be mounted plumb for
accurate temperature control and to ensure proper air
movement through the sensor.
• If mounting onto sheetrock or plaster, use the plastic
threaded anchors (pre-drilling holes is not usually
necessary) and the two M3.5 x 20 mm mounting screws.
• For mounting onto an electrical junction box, use the two 6-
32 x 3/4 in. screws.
Zone Sensor Dimensions
Reference the wall-mounted zone sensor dimensions in the
following figure. Position the sensor on an inside wall three to
five feet above the floor and at least 18 inches from the nearest
outside wall. Installing the sensor at a lower height may give
the advantage of monitoring the temperature closer to the
zone, but it also exposes the sensor to airflow obstructions.
Ensure that air flows freely over the sensor.
Figure 43. Wall-mounted wired and wireless zone
sensor dimensions
0.31 in.
2.90 in.
4.68 in. 3.39 in.
0.63 in.
1.45 in.
2.62 in.
Installation - Controls
TYP R.07 in.
(R1.9)
TYP 0.24 in.
1.08 in.
0.12 in.
2.48 in.
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