Auto-Commissioning Test Sequence - Trane Tracer VV550 Installation, Operation And Maintenance Manual

Table 19.Manual output test sequence (continued)
a
Step
5. Heat 1 turns Off; Heat 2 turns On/water valve
opens
6. Heat 2 turns Off; Heat 3 turns On/water valve
closes
7. Heat 3 turns Off; air valve 1 closes; fan turns Off
e
8. Exit
a. The invalid unit configuration diagnostic causes the controller to exit manual output test.
b. On activating the manual output test function, all outputs are turned Off or closed. The green status LED blinks in a one-blink
pattern during the manual output test if no diagnostics are present. The green status LED blinks in a two-blink pattern during
the manual output test if a diagnostic is present.
c. At the beginning of step 2, the controller attempts to reset all diagnostics. The low airflow diagnostic prevents local electric
reheat from energizing. A ventilation flow controller with a freeze protection active diagnostic will not run the manual output
test.
d. A series fan stays On until the air valve is closed.
e. After the last step, the test sequence performs an exit. This initiates a reset and attempts to return the controller to normal
operation.
To perform manual output testing:
1. Press and hold the TEST push button for at least three seconds. The green status LED
2. Release the Test button to start the manual output test. The manual output test is in
3. Press the TEST button (no more than once per second) to advance through the test
Alternatively, the service override mode enables the Rover
outputs over the communications network. This mode is useful for water balancing, air
balancing, test, and commissioning. The implementation mimics the manual output test.
The mode field of reported unit status and reported heat/cool mode reports TEST during
the manual output test.
A manual override timer is used to limit the length of the override request. This timer is
set to 60 minutes at the start of the manual output test, and reset to 60 minutes each time
the manual output test is advanced to the next step either by pressing the Manual Test
button or on receipt of a communicated value.

Auto-commissioning Test Sequence

The controller auto-commissioning test sequence (see
the proper operation of all outputs and the capability to measure all inputs. The purpose
of the test sequence is to minimize the labor required to commission the unit in the field.
CNT-SVX17G-EN
turns Off, confirming the Test button was pressed.
step one. The green status LED is blinking in one of two patterns. If the green status
LED blinks once, no diagnostics are present. If the green status LED blinks twice,
diagnostics are present.
sequence. Test steps are not skipped. For example, if the unit does not have Heat 3,
advancing to step 6 has no effect, but you still must advance to step 6 before
advancing to step 7.
Heat 1 or
Air water
valve Air valve valve
close open close
Off Off Off
Off Off Off/On
On Off Off
Sequence of Operations
Heat 2 or
water Heat 3 or
valve fan On/
open Off
On Off/On
Off On/On
Off Off/Off
™
service tool to override all
Table 20 below) validates both
d
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