Trane LO - Manual (Page 48)

Tracer
®
ZN.010
and ZN.510
48 UNT-IOM-6
The outputs are not subject to minimum times during the test se-
quence. 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.
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). See the Green STATUS LED section in Table 11 on page 47.
Follow the procedure below to test the Tracer ® ZN.010 and ZN.510
controller.
1. Press and hold the Test button for at least two seconds (not
exceeding 5 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.
Manual Output
Test
Manual Output Test
Procedure