Hoshizaki 73168 Refrigerator User Manual


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4. Controls and Adjustments
The cabinet and rail temperatures are updated every 30 seconds. The control board is
supplied with a service jumper on the K151 connector. Only the temperature setpoint
andthetemperaturescale("F5")maybeadjustedwiththisconnectorinplace.Toview
oradjustotherselections,see"II.D.5.ServiceMenu."
a) Switch Settings
Power Switch "OFF": Unit off (both cabinet and rail).
Power Switch "ON": Cabinet temperature is displayed and cabinet cooling begins.
Cabinet fans and perimeter heaters are on and run continuously (except during defrost).
Rail Cooling Switch "OFF": Rail cooling off, cabinet cooling continues.
Rail Cooling Switch "NORMAL: Designed for use when the rail cover is open. Rail
temperature display on and rail cooling begins. The rail fans operate continuously.
Rail Cooling Switch "LOW": Designed for use when the rail cover is closed. Rail
temperature display is on and rail cooling begins. The rail fans operate intermittently
when"F9"isatthefactorydefaultsetting.Foraccessandadjustmentstothe"F9"
setting,see"II.D.5.ServiceMenu."
Note: A Hoshizaki OEM rail cooling switch must be used if replacing the rail cooling
switch.Fordetailssee"IV.M.RailCoolingSwitch."
b) Temperature Display
The temperature display can be changed between Fahrenheit and Celsius. To change
thetemperaturedisplay,pressandholdthecabinet"SET"buttonandthe"SERVICE
USEONLY"buttonfor5seconds."F0"appearsinthedisplayscreen.Presstheup
arrowbuttonuntil"F5"appearsinthedisplayscreen."F5"istheonlyservicemenu
selection accessible with the service jumper in place.
Pressthecabinet"SET"buttontoviewthetemperaturedisplaysetting.Presstheupor
downarrowbuttontoswitchbetweenF°andC°.Pressthecabinet"SET"buttontosave
thenewsetting.Pressthecabinet"SET"buttonandthe"SERVICEUSEONLY"button
for 5 seconds to return to normal temperature display.
"SET"buttonsusedtoviewcurrenttemperaturesettings.
Cabinet"SET"buttonusedwith"SERVICEUSEONLY"
button to enter and exit the service menu.
"SERVICEUSEONLY"
button used with cabinet
"SET"buttontoenterand
exit the service menu.
"UP"and"DOWN"arrowbuttons
used to change temperature
settings, scroll through the service
menu, and to change menu settings.
"MANUALDEFROST"
button used to initiate
a manual defrost.
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