Hoshizaki rh1-aac Manual Suplementar
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3. Calibrate Control Module
15) Make a note of the display temperature.
16) Enter the menu for the control module by pressing the down arrow button and the "°F"
15) Make a note of the display temperature.
16) Enter the menu for the control module by pressing the down arrow button and the "°F"
button at the same time and release. The display should now read "dIF." Press the "°F"
button until it reads "CAL" - press "°F" once more it should read "00."
button until it reads "CAL" - press "°F" once more it should read "00."
17) Press the up or down arrow button to change "00" to the number in the chart below that
corresponds to the display temperature noted at step 15.
If temperature is:
Change 00 in Cal
(Step 1)
8°F
04
9°F
03
30°F
0
31°F
01
3°F
Do Not Change
33°F
-01
34°F
-0
35°F
-03
36°F
-04
18) Press the "SET" button and wait for the temperature display to stabilize.
19) If the display reads 3°F, the control is properly calibrated. Go to step 0. If the display
19) If the display reads 3°F, the control is properly calibrated. Go to step 0. If the display
does not read 3°F, restart from step 11.
4. Thermistor Installation
0) Place the power switch in the "OFF" position.
1) Unplug the unit from the electrical outlet.
) Open the control box cover and gain access to the back of the control module.
3) Remove the calibration resistor.
4) Remove the cabinet thermistor. Install the new cabinet thermistor. Route the cabinet
0) Place the power switch in the "OFF" position.
1) Unplug the unit from the electrical outlet.
) Open the control box cover and gain access to the back of the control module.
3) Remove the calibration resistor.
4) Remove the cabinet thermistor. Install the new cabinet thermistor. Route the cabinet
thermistor (white and black) in the same manner as the original one.
Note: It may be helpful to pull the wire leads of the new thermistor through the
Note: It may be helpful to pull the wire leads of the new thermistor through the
protective sheathing at the condenser using the old thermistor.
5) Connect the new cabinet thermistor leads (white and black) to the terminals of SEN1.
Connect the white lead to terminal "S" and the black lead to terminal "G".
Note: There is a blank terminal between terminals "S" and "G".
Note: There is a blank terminal between terminals "S" and "G".
6) Remove the defrost thermistor (red and black) from the evaporator. Route the
replacement defrost thermistor using the same routing as the original. Be careful not
to pull or damage the metal end cap of the thermistor sensor. Wire tie the thermistor
wiring to the plastic clip. To prevent condensate water from running into the thermistor,
provide a low point in the wiring below the thermistor.
to pull or damage the metal end cap of the thermistor sensor. Wire tie the thermistor
wiring to the plastic clip. To prevent condensate water from running into the thermistor,
provide a low point in the wiring below the thermistor.
7) Connect the new defrost thermistor leads (red and black) to the terminals of SEN.
Connect the red lead to terminal "S" and the black lead to terminal "G".