Trane Tracer ZN524

Installation & Wiring
CNT-SVX11A-EN 11
Binary input Pin Location Function Configuration Valid range
BI 1 J2 - 1 24 VAC Low evaporation temperature Normally open
J2 - 2 Input Normally closed
BI 2 J2 - 3 24 VAC Condensate overflow Normally open
J2 - 4 Input Normally closed
BI 3 J2 - 5 24 VAC Occupancy/Generic Normally open
J2 - 6 Input Normally closed
BI 4 J2 - 7 24 VAC Fan status or not used Normally open
J2 - 8 Input Normally closed
1. Trane Rover service tool uses the unit type to help determine and download the proper default binary input configuration.
Binary Inputs
Each binary input associates an input
signal of 0 VAC with open contact and
24 VAC with closed contacts.
Binary Outputs
Outputs are load side switching triacs.
The triac acts as a switch, either making
or breaking the circuit between the load
(valve, damper, contactor, relay) and
ground.
Table 1: Binary input summary for the J2 terminal board connections
1
Binary Pin Function Valid range Output Load Load
Output Location Rating Energized De-Energized
BOP-1 J1-1 Fan NA 12VA 1 VAC RMS 24 VAC RMS
BOP-2 J1-2 Reversing valve NA 12VA 1 VAC RMS 24 VAC RMS
BOP-3 J1-3 Electric heat or reheat NA 12VA 1 VAC RMS 24 VAC RMS
J1-4 (Key) NA 12VA 1 VAC RMS 24 VAC RMS
BOP-4 J1-5 Compressor 1 Normally open or 12VA 1 VAC RMS 24 VAC RMS
normally closed
2
BOP-5 J1-6 Compressor 2 NA 12VA 1 VAC RMS 24 VAC RMS
BOP-6 J1-9 Isolation valve 1 Normally open or 12VA 1 VAC RMS 24 VAC RMS
normally closed
2
BOP-7 J1-10 Isolation valve 2
4
NA 12VA 1 VAC RMS 24 VAC RMS
BOP-8 J1-11 Economizer valve NA 12VA 1 VAC RMS 24 VAC RMS
BOP-9 J1-12 Outdoor air damper NA 12VA 1 VAC RMS 24 VAC RMS
BOP-10
3
TB4-1/ Generic output NA 12VA 1 VAC RMS 24 VAC RMS
TB4-2
Table 2: Binary output summary
1
1. Trane Rover service tool uses the unit type to help determine and download the proper default binary output configuration.
2. The normally open/closed configuration item refers to the inactive state of the controller output.
3. BOP-10 is a generic output but requires a 24 VAC source for usage.
4. Typical factory installation has only one (1) ISO valve.