Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Water/Refrigeration Circuit Diagram
- II. Sequence of Operation and Service Diagnosis
- III. Controls and Adjustments
- A. Control Board Layout
- B. LED Lights and Audible Alarm Safeties
- C. Settings and Adjustments
- 1. Default Dip Switch Settings
- 2. Harvest Timer (S4 dip switch 1 & 2)
- 3. Pump-Out Timer (S4 dip switch 3 & 4)
- 4. Pump-Out Frequency Control (S4 dip switch 5 & 6)
- 5. Harvest Pump Timer Operation (S4 dip switch 7)
- 6. Factory Use (S4 dip switch 8)
- 7. Freeze Timer (S4 dip switch 9 & 10)
- 8. Float Switch Selector (S5 dip switch 1)
- 9. Refill Counter (S5 dip switch 2, 3, and 5), Program Selector (4)
- D. Switches
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Appliance for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
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D. Switches
Two control switches are used to control operation in KMD and KML Series Modular
Crescent Cubers. These switches are referred to as the "control switch" and the "service
switch" and are located on the control box.
1. Control Switch
The control switch has three positions: "OFF" for power off; "ICE" for icemaking, and
"SERVICE" to activate the service switch.
2. Service Switch
When the control switch is in the "SERVICE" position, the control switch supplies power
to the service switch and the machine is in service mode. The service switch has three
positions: "DRAIN," "CIRCULATE," and "WASH." See the information below for details of
each function.
Note:
1. When the service switch is activated, power is supplied to the water pump in all
three positions.
2. When the control switch is in the "OFF" position or in the "ICE" position, the
service switch has no power and can be left in any position.
a) DRAIN
This appliance utilizes a pump-out drain system. When the service switch is active and
placed in the "DRAIN" position, power is supplied to the pump motor and drain valve.
b) CIRCULATE
When the service switch is active and placed in the "CIRCULATE" position, power is
supplied to the pump motor only. This operation can be used to circulate cleaner for
extended periods of time over the outside surface of the evaporator.
c) WASH
This appliance utilizes an electric solenoid operated cleaning (bypass) valve. When the
service switch is active and placed in the "WASH" position, power is supplied to the
pump motor and cleaning valve. This operation is used to circulate cleaner and sanitizer
over both the inside and outside of the evaporator.