Trane LO Tracer ZN.010 and ZN.510, Steps, Cool Output, Heat Output, Damper, BOP1-3, BOP4, BOP5

Tracer® ZN.010

and ZN.510

Table 13. Test Sequence for 1-Heat /1-Cool Configurations

Steps	Fan	Cool Output	Heat Output	Damper
	BOP1-3	BOP4 (1)	BOP5	BOP6
1. Off	Off	Off	Off	Closed
2. Fan High	High	Off	Off	Closed
3. Fan Medium	Medium	Off	Off	Closed
4. Fan Low	Low	Off	Off	Closed
5. Cool	High	On	Off	Closed
6. Heat	High	Off	On	Closed
7. Fresh Air	High	Off	Off	Open
Damper (3)
8. Exit	(2)

Notes:

(1)At the beginning of step 2, the controller attempts to clear all diagnostics.

(2)For all 1-heat/1-cool applications including 2-pipe changeover, BOP4 energizes in the cooling test stage and BOP5 energizes in the heat test stage.This occurs even though during normal 2-pipe changeover operation BOP4 controls the unit valve for both cooling and heating.

(2)After the Fresh Air Damper step, the test sequence performs the Exit step.This initiates a reset and attempts to return the controller to normal operation.

(3)The fresh air damper (BOP6) only energizes during this step if binary output 6 has been configured as a fresh air damper.

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