12
u-line.com
General Information
To exit the Input Status menu use Up
to select “Return to Menu”
and press Select
to confirm.
Offsets
NOTICE
Customer care MUST be notified and approve of any
changes to the differential before they are made. Failure to
notify customer care will void the warranty.
Offsets are used to adjust or correct thermistor readings. Offset
values are added to the current thermistor reading and are then used
by the control board to determine cooling and defrost cycle times.
Offsets have a range of +/- 5°C. Corrected values may be viewed
through the customer “All Temps” menu or TTY output.
To access Offsets
1. Use Down
to select “Offsets”.
2. Press Select
.
3. Use Up
and Down
to scroll through available thermistors.
To change offset
4. Press Select
, the selected thermistor will begin to flash.
5. Use Up
or Down
to modify offset value.
6. Press Select
to confirm setting.
To exit the Offset menu use Up
to select “Return to Menu” and
press Select
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. Use Down
to select “Self Test”.
2. Press Select
.
3. Use Up
and Down
to scroll through available information.
To exit the Self Test use Up
to select “Return to Menu” and press
Select
to confirm.
Differentials
Differentials are used to determine the maximum variation from set
point and have a range of 0 through 5. The table below shows the
effect of differentials on cooling cycles with a set point of 10°.
Note:
Air temperature does not reflect product temperatures.
The graph below shows a unit’s cooling cycle over time with various
differentials.
Up
Select
Down
RETURN TO MENU
OFFSETS
ZONE = 1°C
EVAP = 1°C
Up
Select
Down
RETURN TO MENU
SELF TEST
NO ERRORS
try “RELAY TOGGLE”
Differential
Cycle Start
Cycle End
0
11°
9°
1
12°
8°
2
13°
7°
3
14°
6°
4
15°
5°
5
16°
4°
Up
Select
Down
RETURN TO MENU
DIFFERENTIALS
ZONE = 1°C
45° Set Point
1° Differential
2° Differential
3° Differential
Temperatur
e (°C)
