U-Line 3024DWR, User Manual & Service Manual

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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Control Operation - Service 5
USER GUIDE
u-line.com
To access Offsets
1. Press to select “Offsets”.
2. Press
3. Press to scroll through
available thermistors.
To change offsets
4. Press , the selected
thermistor will begin to flash.
5. Press to modify offset value.
6. Press to confirm setting.
To exit the Offset menu, press to select “Return to
Menu” and press to confirm.
Self Test
Self test is used to initiate a self diagnostic report.
Any system faults will be displayed under Self test. If
no errors are present “no errors” will be displayed and
the main control board is functioning properly. The
main control board is extremely robust and should
rarely require service. Most issues are external to the
control. Reference troubleshooting for more
information.
To access Self Test
1. Press to select “Self Test”.
2. Press
3. Press to scroll through available information.
the Self Test, Press to select To exit
“Return to Menu” and press to
confirm.
Differentials
(DO NOT MAKE AN ADJUSTMENT TO THIS WITHOUT
CONTACTING TECH LINE: 800-779-2955)
Differentials are used to determine the maximum
variation from set point and have a range of 0 through
10. The table below shows the effect of differentials on
cooling cycles with a set point of 45°F (7°C).
NOTE: Air temperature does not reflect product
temperatures.
Differential Cycle Start °F (°C) Cycle End °F (°C)
0 45° (7°) 43° (6°)
1 46° (8°) 43° (6°)
2 47° (8°) 41° (5°)
3 48° (9°) 41° (5°)
4 49° (10°) 39° (4°)
5 50° (10°) 37° (3°)
The graph below shows a unit’s cooling cycle over
time with various differentials.
Evap Fan (excludes ZWC)
Up
Select
Down
RETURN TO MENU
SELF TEST
NO ERRORS
try “RELAY TOGGLE”
Up
Select
Down
RETURN TO MENU
DIFFERENTIALS
ZONE = 1°F
Can be displayed in Celsius
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