Manualshelf

Installation and Maintenance Manual

ManualsBrandsTrane ManualsVariable Air Volume ControllerTrane Single-Duct
11121314151617181920
12 VAV-SVX07A-EN
VAV Start Up/Check Out Procedure
This chapter contains information about the following:
• Tracer™ UC400 Controller Pre-Power Check-Out
• Tracer UC400 Controller Power Wiring
• Communication Wiring
• Space Temperature Control Wiring
• Zone Sensor Wiring
• Duct Temperature Sensor Wiring
• Binary Input Wiring
• Binary Output Wiring
• Zone Sensor Check-Out
• Ventilation Flow Control
• Flow Tracking Control
• Wireless Zone Sensor
Tracer UC400 Controller Pre-Power Check-Out
WARNING
Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it may be necessary
to work with live electrical components. Have a qualified licensed electrician or other individual
who has been properly trained in handling live electrical components perform these tasks.
Failure to follow all electrical safety precautions when exposed to live electrical components
could result in death or serious injury.
• Check the supply voltage at XFRM. Proper polarity must be maintained. The 24 VAC is the hot
side (+) and is the ground side (-) of the 24 VAC input. Refer to Figure 4, p. 18 for the Tracer
UC400 controller terminal locations. The Tracer UC400 controller cannot be powered from a
common 24 VAC transformer that is supplying power to a device containing a full-wave rectifier
bridge in its power supply. The acceptable voltage is 19 to 30 VAC (24 VAC nominal). However,
voltages at either extreme may result in increased system instability.
• Verify communications wiring has properly been terminated to link plus and negative at XFRM
24 VAC (+) and (-) terminals. Polarity must be maintained on the BACnet communications
link.
• Verify that the zone sensor connections are correct as detailed in the Tracer UC400 controller
wiring section.
• If heat has been added to the unit, verify that the proper output connections have been made
as detailed in the Tracer UC400 controller wiring section.
• Verify that the tubing is properly connected to the differential pressure transducer.