Hoshizaki REFRIGERATED PREP TABLE WITH RAISED RAIL 73168 - Manual (Page 19)

19
Section Temperature Setpoint Range Default
Cabinet
21 to 53°F
(-6 to +12°C)
37°F
(3°C)
Rail
-13 to +53°F
(-25 to +12°C)
33°F
(1°C)
c) Temperature Setpoint
The temperature setpoint is the temperature setting at which the compressor turns on.
The factory default temperature setpoints are 37° (3°C) for the cabinet and 33°F (1°C)
for the rail (see the chart below).
The temperature differential for the compressor to turn off is 3.6°F (2°C) below the
temperature setpoint. The temperatures are updated every 30 seconds. If necessary,
adjust the temperature setpoint as outlined below.
Note: The cabinet and rail temperature setpoints must be changed individually.
1) Press the appropriate "SET" button to display the current temperature setpoint.
2) Press and hold the appropriate "SET" button while pressing the up or down arrow
button. See the chart below for temperature setpoint ranges.
3) Release the "SET" button. As long as the unit is not turned off, the new setpoint will be
saved automatically after 10 seconds.
d) Cabinet Defrost
The automatic cabinet defrost is factory set for once every 6 hours. See "II.D.5. Service
Menu." The cabinet defrost thermistor will signal the control board to start a defrost once
the 6 hour defrost timer has expired and the cabinet evaporator temperature is below
49°F (9.4°C). Defrost is heated, and therefore will have a tendency to raise the cabinet
temperature.
For a manual cabinet defrost press the "MANUAL DEFROST" button on the control
board for 5 seconds to initiate a defrost. This will restart the 6-hour defrost timer.
Cabinet temperature is not displayed during defrost; "dF" is displayed in its place. The
control board will terminate the cabinet defrost and begin defrost recovery when a signal
from the cabinet defrost thermistor is greater than 49°F (9.4°C). After defrost, there is a
5-minute delay before the compressor will start.
This unit has an additional defrost thermistor located behind the wire cover that connects
to the K201 connector, terminals 3 and 4. This thermistor is not used for defrost
purposes on this model, but must be in place for proper operation of the control board.
e) Energy Saving Mode
"Energy Saving Mode" is not used on this unit. The "Energy Saving Mode" LED is
located to the bottom right of the cabinet display and should be off. See "II.D.2. Control
Board Layout." If the "Energy Saving Mode" LED is on, press the "SERVICE USE
ONLY" button for 5 seconds to exit and disable the "Energy Saving Mode."