Tracer Summit®
Communication
Wiring
Tracer® ZN.520
Tracer® ZN.520
Tracer® ZN.520 is a communicating or standalone device. It is easily accessible in the control end panel for service. The control end panel is on the end opposite the piping.
Sequence of Operations
OFF: Fan is off; control valve options and fresh air damper options close. The low air temperature detection option is still active.
Auto: Fan speed control in the auto setting allows the modulating (3- wire floating point) or
Low/Med/High: The fan will run continuously at the selected speed and the valve option will cycle to meet setpoint.
For Tracer® ZN.520 controlled units that will interface with the Trane Tracer Summit® building management system, terminate the commu- nication wiring in the control box at the designated terminals on the board. Reference the unit wiring diagram or submittals.
Ground shields at each Tracer® ZN.520, taping the opposite end of each shield to prevent any connection between the shield and anther ground. Refer to Trane publication,
Communication wire must conform to the following specification:
1)Shielded twisted pair 18 AWG
2)Capacitance 23
3)Listing/Rating – 300V 150C NEC
4)Trane Part No.
59 |