Trane UCM 4.0 and WirelessVAV Communication Installation/ Operator Programming page 31

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status. Each receiver that receives this
signal checks to see if any of the UCMs
on its VAV link needs that sensor's
value. If a UCM needs the value the
receiver sends the information down
the link and the UCM reads it. This
process means all UCM's could use the
same sensor.
Specifications
Wireless Receiver Power Requirements
Input Voltage Connections: The receiver
requires 24 VAC and 60 HZ from a
dedicated 40 VA transformer (not
provided with the receiver).
Blue Wire:
24VAC (HOT wire)
Yellow Wire: 24VAC (NEUTRAL wire)
Green Wire: Earth GROUND
Red Wire:
To Positive (+)
Communication Link
Black Wire:
To Negative (-)
Communication Link
NOTE: A dedicated 24 VAC, 40VA class 2
transformer is required to power the
Wireless Receiver. Failure to comply will
result in malfunction of the Receiver due
to electrical noise.
All wiring must comply with the
National Electric Code (NEC) and local
codes. Use 16 AWG for power wiring.
Maximum wire lengths should be
based on NEC specifications.
Zone Sensor Power Requirements
The zone sensors require two 3-volt "2/
3 A" lithium batteries. Each sensor
ships with two batteries, and the
average expected battery life is approxi-
mately 1.5+ years.
NOTE: Excessive transmissions will
shorted the battery life span. See
Frequently Asked Questions for more
details.
Both batteries must be installed for
sensor/transmitter to operate properly.
Acceptable replacement battery model
numbers are Varta 123A, Panasonic
CR123A, or Duracell 123A.
VAV-SVX01B-EN
Wireless VAV
Systems
Wireless Receiver Mounting
The receiver will work best if mounted below the ceiling grid with the antennae
pointing down. The receiver is to be hung from the roof structure like a light fixture. A
hook on the back is provided for connection of a chain. A threaded nipple is provided
for attaching a handy-box when the wiring must be run in conduit.
Ideally, the receiver should be located an equal distance from all its assigned zone
sensors.
NOTE: Do not mount the wireless system near RF barriers such as elevators. Failure to
do so may result in wireless system malfunction.
Zone Sensor Mounting
Zone sensors are installed in areas where temperature control is to be maintained.
The sensor mounts directly to the wall by either using Velcro or by attaching the
backplate and then snapping the sensor body into place.
Dimensions
Receiver
Sensor
Enclosure: Sheet metal/Plastic
Height:
2.5" (64 mm)
Width:
8.5" (216 mm)
Depth:
9.0" (229 mm)
Product Specifications
— At least one (1) wireless receiver is required per com link
— Receivers per CCP:
— Receivers per Tracer Summit:
— Total Zone Sensors per CCP or Tracer Summit:
— Backup Zone Sensors per VAV box:
— Averaging Zone Sensors per VAV box:
— Zone Sensors associated with one VAV box:
— Maximum number of VAV UCMs per link:
— Maximum Distance from Receiver to Sensor:
— Minimum Time between Transmission:
— Loss of Sensor Communications Alarm:
— Average Battery Life:
— Use 18 gauge twisted shielded pair communications wire for the ICS communication
link to the receiver. The communications link is polarity sensitive.
Plastic
4.0" (102 mm)
5.0" (127 mm)
1.5" (38mm)
6
31
255
1
4
5
63
1000ft.(304 m)
30 sec
24 min
1.5 years
31

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