SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE •
SERVICE
Control Operation - Service 6
USER GUIDE
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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
The Evap Fan option in the service menu allows
servicers to change the Evaporator Fan runtime (in
minutes) from 0 to 98 and OFF cycle time 0 to 98.
To access Evap Fan
1.
Press
to select “Evap Fan”.
2.
Press
3.
Press to scroll through
available settings.
To exit the Evap Fan menu, press
to select “Return
to Menu” and press
to confirm.
Mullion
The MULL option in the service menu allows servicers
to change the ON/OFF time in minutes of the mullion
heater (DWR only) from 0 to 98.
To access Mullion
1.
Press
to select “MULL”.
2.
Press
3.
Press to scroll through
available settings.
Up
Select
Down
RETURN TO MENU
DIFFERENTIALS
ZONE = 1°F
Can be displayed in Celsius
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HUHQWLDO
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HUHQWLDO
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HUHQWLDO
Up
Select
Down
RETURN TO MENU
EVAP FAN
EVAP FAN ON = 1
EVAP FAN OFF = 60
Up
Select
Down
RETURN TO MENU
MULL
MULL ON = 5
MULL OFF = 30
.
and
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and