Catalogue

UNT-PRC001-EN 53
Controls
Two-Position Fresh Air Damper Actuator, Model Number Digit 13 = D, E, or F
(Available with all control options except ZN520)
This damper actuator uses a 24 V signal and is factory-wired and mounted to the damper assembly.
It allows zero to 50 percent fresh air. The damper will drive open to an adjustable mechanical stop-
position whenever the fan is running during occupied mode and will spring-return closed when the
fan turns off.
Note: Trane recommends using the low temperature detection option with fresh air dampers to
detect possible freeze conditions.
Economizer Fresh Air Damper Actuator (Tracer ZN520 and UC400), Model
Number
Digit 13 = G, H, or J
Figure 22. Wiring harness
Figure 23. Two-position fresh air damper actuator
Figure 24. Economizer fresh air damper actuator
End Device Options
UNT-PRC001-EN.book Page 53 Tuesday, May 8, 2012 10:54 AM