Trane Force Flo Cabinet Heater - Typical wiring diagram for Tracer ZN520 unit with two-stage electric heat and unit-mounted zone sensor

Wiring Diagrams
UNT-SVX07E-EN 155
Table 97. Typical wiring diagram for Tracer ZN520 unit with two-stage electric heat and unit-mounted zone sensor
Legend
Device
Designation
Adapter Board/ECM Engine
Description
Line
Number
28/44
1U2/1U3
Fan Motor
J
Jack (Cap) Connector
P
Plug connector
Device Prefix Location Code
Area
Location
Control Panel
Control End
Piping End
Fan Section
Coil Section
Customer Installed
Field Supplied Device
1
2
3
4
5
6
7
Terminal Block
5
5HR1-3
1T1
Transformer
25
24
1U1
Main Board - ZNX20
23
Zone Sensor Module
2U2
23
481
7RT4
Generic Thermistor 46
Discharge Air Temp Sensor5RT5 38
Return Air Sensor
4RT2
21
1TB1