4B. Cabinet Temperature Control - Cabinet Control Module 4A7053-01 - Hoshizaki Steelheart Series Service Manual

4b. Cabinet Temperature Control - Cabinet Control Module 4A7053-01

PR46B: M50053H-M50072H
PR60B: M50008H-M50024H
The cabinet temperature is controlled by the cabinet control module in conjunction with
the cabinet thermistor and cabinet fan motor relay. The cabinet control module energizes
the cabinet fan motors when needed, if cabinet fan motor relay is energized. The cabinet
control module does not energize or de-energize the compressor.
WARNING! Adjusting cabinet setpoint only affects cabinet fan motor(s) operation.
It does not control compressor operation.
a) Cabinet Temperature Setpoint Adjustment: The cabinet temperature is displayed
on the cabinet control module. To change the cabinet setpoint, press the up or down
arrow button and release. See Fig. 10. The current cabinet setting flashes. Press the
up or down arrow button to the desired setpoint. 5-sec. later, the setpoint is saved
and the display returns to normal display.
NOTICE! Do not adjust the setpoint more than 2
temperature to stabilize for a minimum of 8 hours before making further
temperature setpoint adjustments.
b) Cabinet Temperature Display Scale (
To change the temperature display scale, follow the steps below.
1) Press and hold both the up and down buttons for 5 seconds,"EHE" is displayed.
2) Press the up or down arrow button until "diS" is displayed.
3) Press the power button, "din" is displayed. Press the up or down arrow until "CFu" is
displayed. Press power button, current temperature display scale flashes. Press up or
down arrow to select between "-F" or "-C".
4) Press the power button to save the selection. "CFu" is displayed. To return to normal
display mode, wait 1 min. or press the back button twice to return to temperature
display.
Back
Button
Power
Button
F (1
°
F or C):
° °
V
Up Button
°F
V
Down Button
Fig. 10
29
C) at a time. Allow the
°
Front Panel