Hoshizaki rf28a 補足マニュアル

18

In cases where there is a discrepancy between the actual cabinet center temperature 
and the displayed temperature for a particular model, a calibration factor is used to 
correct the displayed temperature.

This unit has been factory tested with the default settings listed. Avoid using 
this function except to confirm that the setting is correct. If set incorrectly, the 
display could show an acceptable temperature even though the temperature is 
out of the proper range. This value should only be changed after consulting with 
the factory.

To view the current value, follow the steps below.

1) Turn the power on while pressing the  

 up button. The current correction calibration 

factor will be shown. If "18" is displayed, the value is 1.8°F (1.0°C). See the table below 
for the default values.

-9.0 to 9.0°F in 0.9°F increments  
(-5.0 to 5.0°C in 0.5°C increments)

18 (1.8°F) 

(10 (1.0°C))

36 (3.6°F) 

(20 (2.0°C))

2) If it is determined through discussion with the factory that the setting needs to be 

changed, press the 

 up or 

 down button to increase or decrease the value.

3)  Press the

 button to save the new value.

4) Turn the power off and then back on. The unit will start running with the new value.

[Example]
When the average cabinet temperature is 
approximately 5.4°F (3.0°C) higher than the thermistor 
detected temperature, change the correction 
calibration factor to 5.4°F (3.0°C).

This unit is equipped with a perimeter frame heater. This helps prevent the formation of 
condensate on the front frame of the unit under high humidity conditions. Draw is 0.3A.
A backup perimeter frame heater has been prerouted in the unit.