UNT-SVX07B-EN 87
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BIP2: Condensate Overflow Detection Option
The factory hard wires the condensate overflow sensor to binary input #2 (BIP2) on the Tracer
ZN010 and ZN510. The sensor defaults normally closed (N.C.), and will trip off the unit on a
condensate overflow diagnostic if condensate reaches the trip point. In addition, the Tracer ZN010
and ZN510 control unit devices as listed below:
Fan: Off
Valves: Closed
Electric heat: Off
BIP3: Occupancy Sensor
Binary input #3 (BIP3) on Tracer ZN010 and ZN510 is available for field- wiring an occupancy sensor,
such as a binary switch or a timeclock, to detect occupancy. The sensor can be either normally open
or normally closed. Refer to Table 16 .
Binary Outputs
Refer to Tab l e 17 for the Tracer ZN010 and ZN510’s six binary outputs.
Both Tracer ZN010 and ZN510 accept a maximum of five analog inputs. Refer to Table 18, p. 88.
Table 16. Occupancy sensor state table
Sensor Type Sensor Position Unit Occupancy Mode
Normally open Open Occupied
Normally open Closed Unoccupied
Normally closed Open Unoccupied
Normally closed Closed Occupied
Table 17. Binary outputs
Binary output Description Pin
BOP1 Fan high speed J1-1
BOP2 Fan medium speed J1-2
BOP3 Fan low speed J1-4
BOP4 Main valve J1-5
BOP5 Auxiliary valve/electric heat J1-6
BOP6 2-position fresh air damper J1-7
Notes:
1. In a four-pipe application, BOP4 is used for cooling and BOP5 is used for heating.
2. If no valves are ordered with the unit, the factory defaults for the Tracer ZN010 and ZN510 controller are:
BOP4 configured as normally closed
BOP5 configured as normally open
3. If the fresh air damper option is not ordered on the unit, BOP6 will be configured as none.
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