Trane BCVC, BCHC manual Zone Sensor, Space Temperature Measurement, Binary output configuration

Start-Up

Table 29. Binary output configuration

Binary output
pin connection	Configuration	ZN010	ZN510	ZN520
J1-1	Fan high	•	•	•
J1-2	N/A	•	•	•
J1-3	Fan low			•
J1-4	(Key)			•
	Fan low	•	•
J1-5	Main valve – open, or 2 pos. valve(a)	•	•	•
J1-6	Aux. valve/elec. ht.	•	•
	Aux. valve – close(a)			•
J1-7	2-pos. damper	•	•
J1-9	Heat valve – open, or 2 pos. valve, or first stage elec. ht.(a)			•
J1-10	Heat valve – close or sec. stage elec. ht.(a)			•
J1-11	Fresh air damper – open			•
J1-12	Fresh air damper – close			•
TB4-1	Generic / baseboard heat output			•
TB4-2	24 VAC			•

Notes:

1.If no valves are ordered with the unit, the factory default for Tracer™ ZN010 and ZN510 controllers are: main valve configured as normally closed and aux. valve configured as normally open.

2.If the fresh air damper option is not ordered on the unit, 2-pos. damper is configured as none.

3.Pin J1-2 can be configured for an exhaust fan with the use of Rover™ software. Factory default is none.

(a)Two-pipe hydronic heat/cool changeover units use terminals J1-5 and J1-6 to control the primary valve for both heating and cooling. Units configured and applied as 2-pipe hydronic heat/cool changeover with electric heat, use terminals J1-5 and

J1-6 to control the primary valve (for both cooling and heating), and terminals J1-9 and J1-10 for the electric heat stage. For those 2-pipe changeover units, electric heat will not energize while the hydronic supply is hot (5 or more degrees above the space temperature). In a 4-pipe application, pin J1-5 is for cooling and pin J1-6 for heating.

Zone Sensor

The Tracer™ ZN controller accepts the following zone sensor module inputs:

•Space temperature measurement (10kW thermistor)

•Local setpoint (either internal or external on the zone sensor module)

•Fan mode switch

•Timed override, using “on” and “cancel” buttons (Tracer ZN510 and ZN520 only)

•Communication jack (Tracer ZN510 and ZN520 only)

Table 30. Zone sensor wiring connections

TB1 Description

1Space temperature

2Common

3Setpoint

4Fan mode

5Communications

6Communications

Space Temperature Measurement

Zone sensors use a 10kW thermistor to measure the space temperature. Wall-mounted zone sensors include a space temperature thermistor. Unit-mounted zone sensors have a return air sensor mounted in the unit’s return airstream. If both a hardwired and communicated space

60 BCXC-SVX01B-EN