Trane BCHC, BCVC, BCXC-SVX01B-EN manual Diagnostics, Manual Output Test Procedure

Diagnostics

Service LED section. Use Rover™ service tool to restore the unit to normal operation. Refer to the Rover product literature for more information.

Manual Output Test

The purpose of the manual output test sequence is to verify output and end device operation. Use the manual output test to:

•Verify output wiring and operation without using Rover™, service tool.

•Force the water valve to open and balance the hydronic system.

Note: The manual output test is not an automatic cycle. You must press the Test button to proceed through each step.

The controller observes all diagnostics that occur during the test sequence. Although an automatic diagnostic reset sequence exists as part of the controller’s normal operation, the automatic diagnostic reset feature is not active during the test sequence.

If left in an individual test step, the controller remains in test mode for 60 minutes and then exits to normal operation.

Many service calls are due to unit diagnostics. The test sequence resets unit diagnostics and attempts to restore normal unit operation prior to testing the outputs. If the diagnostics remain after a reset, the STATUS LED indicates the diagnostic condition is still present (two blinks).

Manual Output Test Procedure

Follow the procedure below to test the Tracer™ ZN010, ZN510, or ZN520 controller.

1.Press and hold the Test button for at least two seconds (not exceeding five seconds), and then release, to start the test mode.

2.The test sequence will turn off all outputs and then attempt to clear all diagnostics.

3.Press the Test button several more times (no more than once per second) to advance through the test sequence.

The outputs are not subject to minimum times during the test sequence. However, the test sequence only permits one step per second which limits minimum output time.

The green LED is turned off when the Test button is pressed. To begin the manual output test mode, press and hold the Test button (turning off the green LED) for at least two seconds. The green LED will begin to blink, indicating the controller is in test mode.

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