Trane FARRAR ULC Series Installation, Operation And Maintenance Manual page 29

Ultra low storage chamber
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Use the following TECHNICAL FUNCTIONS to alter additional, major operations of the system:
4.
TECH SUMMARY: Touch the right arrow to enter the detailed technical screens.
VIEW TEMPS – S.P. & ACTUAL: Touch the right arrow to enter the detailed temperature technical screens.
VIEW TIMERS – S.P. & ACTUAL: Touch the right arrow to enter the detailed timer technical screens.
PERFORM CALIBRATION: Touch the right arrow to enter calibration of the control probe for this system.
Note:
TECH SUMMARY, VIEW TEMPS – S.P. & ACTUAL, VIEW TIMERS – S.P. & ACTUAL, and PERFORM CALIBRATION
requires Operator privileges or above to access. Operator privileges to access. Refer to the Update Existing User
Account section of this manual for more information.
5.
Press the right arrow
PRESENT TEMP PROBE VALUE displays the current reading from the temperature control probe.
6.
Touch the display next to the DESIRED PROBE VALUE and use the keypad to enter the control probe value based on
7.
an independent temperature sensor.
8.
The PRESENT OFFSET displays the current value of the offset to the raw temperature probe value due to calibration.
Note: If the PRESENT OFFSET value is more than +/- 5°C, a message will appear warning of this excessive
calibration offset. However, the software will still accept the calibration value.
Press the house icon
9.
to go to the CALIBRATION screen.
Figure 24: Calibration Screen
to return to the HOME screen.
ULC SERIES INSTRUCTION MANUAL
29

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