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c) Cabinet Light/Heated Glass Door (S3 dip switch 2)
When the cabinet light option is selected (S3 dip switch 2 "OFF"), the control board
energizes the K1 connector pin #5 light blue (LBU) wire and turns on the cabinet light
(solid door models) each time the door and door switch open.
When the heated glass door option is selected (S3 dip switch 2 "ON"), the control board
energizes the K1 connector pin #5 when the compressor is off, and de-energizes when
the compressor turns on. Professional Series SSE glass doors are not heated.
Factory set, no adjustment required. Do not adjust to "ON" position on SSE models.
S3 Dip Switch Setting
Cabinet Light/Heated Glass Door
No. 2
OFF
Cabinet Light (Solid Door)
ON
Heated Glass Door (No Longer Applicable)
d) Door Switch Type (S3 dip switch 3)
Hoshizaki has utilized both normally open and normally closed door switch contact
styles. S3 dip switch 3 is used to select the type of switch used on a particular model.
Factory set, no adjustment required.
S3 Dip Switch Setting
Door Switch Type (Rocker or Plunger)
No. 3
OFF
Rocker Door Switch (square): Open Contacts when Doors are Open
ON
Plunger Door Switch (round): Closed Contacts when Doors are Open
e) Reach-In/Pass Thru Defrost Initiation Temperature (S3 dip switch 4)
Refrigerators only. Pass Thru refrigerator models require a defrost initiation temperature
that is different from the reach-in refrigerator models.
Factory set, no adjustment required.
S3 Dip Switch Setting
Model
Defrost Initiation
Temperature
No. 4
OFF
All Refrigerators Except Pass Thru
13°F (-10.5°C)
ON
Pass Thru
8°F (-13.3°C)
f) Display Board Operation (S3 dip switch 5)
The display board may be disabled by moving S3 dip switch 5 to the "ON" position. When
the display board is disabled, the control board operates in default mode.
Default Mode: Compressor on 5-minutes then off 5-minutes. See "II.D.2.f) Default Safety
Program."
Factory set, no adjustment required.
S3 Dip Switch Setting
Display Board Status
No. 5
OFF
Enabled
ON
Disabled