Troubleshooting; Diagnostics - Trane Tracer Uc

Programmable bacnet controller for variable-air-volume (vav) units
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Troubleshooting

This section provides information about the following:
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 components could
result in death or serious injury.

Diagnostics

The following table provides information about controller diagnostics.
Table 10. Controller Diagnostics
Diagnostic
Discharge air temperature failure (space
temperature control)
Discharge air temperature failure (ventilation
flow control without reheat)
Discharge air temperature failure (ventilation
flow control with reheat)
Discharge air temperature failure (flow tracking
control)
Low airflow (space temperature control)
Low airflow (ventilation flow control)
Supply air temperature failure (space
temperature control)
Supply air temperature failure (ventilation flow
control)
Supply air temperature failure (flow tracking
control)
Space temperature fail (space temperature
(b)
control)
Space temperature fail (ventilation flow
(b)
control)
Space temperature fail (flow tracking control)
Local setpoint failure
Flow sensor failure or flow sensor calibration
failure (space temperature control)
Flow sensor failure or flow sensor calibration
failure (ventilation flow control)
Flow sensor failure or flow sensor calibration
failure (flow tracking control)
VAV-SVX07B-EN
"Diagnostics"
"Troubleshooting Procedures, " p. 60
Air Valve
Normal
Normal
Closed
Normal
Normal
Normal
Normal
Normal
Normal
Occupied: cool minimum flow
setpoint Unoccupied: closed
Normal
(b)
Normal
Normal
Normal pressure dependent control Normal
Normal pressure dependent control Do not care
If the configured airflow tracking
offset is positive, configure
maximum airflow If the configured
airflow tracking offset is negative,
configure minimum airflow
WARNING
Fan
Reheat
Normal
Normal
Do not care
Do not care
Do not care
Off
Do not care
Do not care
Local electric heat is Off; local
Normal
hydronic and all remote heat is
normal
Local electric heat is Off; local
Do not care
hydronic is normal; remote is Don't
Care
Local electric heat is Off
Normal
hydronic and all remote heat is
normal
Do not care
Normal
Do not care
Do not care
Series fan enabled;
Off
parallel fan Off
Do not care
Normal
Do not care
Do not care
Normal
Normal
Normal
Normal
Do not care
Do not care
(a)
; local
59

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Tracer uc400

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