Delfield F15MC48D-E, Installation, Operation And Maintenance Manual

Page: 17 / 24

Part Number: 9291460 11/17 17
Section 3 Operation
TEMPERATURE CONTROL & DISPLAY
Operation / Indication
Status Displayed Comments
Normal (°C) Temp. [°C] Unit depends on setting
(parameters in control)
Normal (°F) Temp. [°F]
Show set-point Temp.
Set to Defrost dEF / Temp Depends on setting
(parameters in control
or as chosen by upper
left button)
Sensor 1 defect E01 X Air sensor
Sensor 2 defect
E02
X Coil sensor
Sensor 3 defect E03 X Open
Sensor 4 defect E04 X Open
High temperature
alarm Hi X Automatically switching
at 2 sec rate
Low temperature alarm Lo X
Line voltage too high uHi X
Line voltage too low uLi X
Control calls for cooling
for more than 24 hours
straight
LEA
X Time includes defrost.
Error will go away if the
control cycles off the
compressor or if the
power is shut off. If error
is on a cold pan it could
be related to a high
ambient temperature or
not shutting the rail off
nightly.
Temperature Control & Display Operation
V
V
Press upper or lower right button.
• Display show actual set-point (blinking).
• If buttons untouched for 3 seconds returns to
normal.
• Increase set-point by pressing upper button. Max value
depends on parameters in control.
• Decrease set-point by pressing lower button. Min value
depends on parameters in control.
• If buttons untouched for 3 seconds returns to
normal and stores new set-point.
Press upper left button for 5 seconds.
• Start defrost.
Press lower left button for 5 seconds.
• Unit goes into stand-by mode.
• The display will read Off, then a period.
• Press the lower left button again for 5 seconds.
• The display will read On.
• The unit will then start up in the defrost mode,
and display will read dEF.
Temperature Alarm
The alarm will sound and flash HI or LO 90 minutes after the
unit has reached its alarm temperature point or after any
power interruption if the temperature is above or below
the alarm set points. Refrigerators are factory set at mid-
range to maintain about 38ºF (3ºC) box temperature. The
high refrigerator temperature point is 50°F (10°C). The low
refrigerator temperature point is 25°F (-4°C).