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VAV Start Up/Check Out Procedure
Chapter Overview
This chapter contains information about the following:
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VV550 Pre-Power Check-Out
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.
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VV550 Pre-Power Check-Out
Power Wiring Requirements
Light Emitting Diode (LED) Operations
Communication Wiring
Space Temperature Controller Analog Inputs
• Zone Sensor Wiring
• Auxiliary Sensor Wiring
• Binary Input Wiring
• Binary Output Wiring
Ventilation Flow Control
• Auxiliary Sensor Wiring
Flow Tracking Control
Wireless Zone Sensor
WARNING
Check the supply voltage at TB1. Proper polarity must be maintained. TB1-1 is the hot side (+)
and TB1-2 is the ground side (-) of the 24VAC input. Refer to
for the VAV VV550 Controller terminal locations. The VAV VV550 Controller cannot be powered
from a common 24VAC transformer that is supplying power to a device containing a full-wave
rectifier bridge in its power supply. The acceptable voltage is 18 to 32 VAC (24VAC cataloged).
However, voltages at either extreme may result in increased system instability.
Verify that communications wiring has properly been terminated at TB2-1 (+) and TB2-2 (-).
Polarity is not important on the communications link.
Verify that the zone sensor connections are correct as detailed in this IOP .
If heat has been added to unit, verify that the proper output connections have been made as
detailed in this IOP .
Verify that the tubing is properly connected to the transducer.
Figure 2, p. 17
and
Figure 3, p. 18
VAV-SVP01A-EN
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Troubleshooting
