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®
ZN.520
84 UNT-IOM-6
LED Operation
The green status LED is off when you press the Test button.To begin
the manual output test mode, press and hold the Test button (which
causes the green LED to go off) for at least two seconds, then
release the button.The green LED blinks, indicating the controller is in
manual test mode.
The procedure for testing is:
1.Press and hold the Test button for at least two seconds, then
release the button to start the test mode. When manual output test
mode begins, the controller turns off all outputs and calibrates
modulating end devices closed.
2. Press the Test button (no more than once per second) to advance
through the test sequence. Alternatively, the manual output test can
be controlled over the communications network by using Rover.
Manual Output Test
Table 34. Test Sequence
Step Fan Main valve Electric heat Fresh Generic/
or aux. valve air baseboard
damper heat
J1-1 J1-2 J1-3 J1-5 J1-6 J1-9 J1-10 J1-11 J1-12 TB4-1
1: Off
1
Off Off Off Off On Off aux: on Off On Off
EH: off
2: Fan High
2
High Off Off Off Off Off Off Off Off Off
3: Fan Med Off Med Off Off Off Off Off Off Off Off
4: Fan low Off Off Low Off Off Off Off Off Off Off
5: Main open High Off Off On Off Off Off Off Off Off
6: Main close, High Off Off Off On On Off Off Off Off
EH1 on
7: Aux open, High Exh Off Off Off On Off Off Off Off
EH1 on
8: Aux close, High Off Off Off Off Off On On Off Off
EH1 off, EH2 on,
damper open
9: Damper close High Off Off Off Off Off Off Off On Off
10: Generic/ High Off Off Off Off Off Off Off Off On
baseboard
heat energized
11: Exit
6
Exit
1
Upon entering manual output test mode, the controller turns off all fan and electric heat outputs and drives
Test Sequence