Control Switch And Service Switch - Hoshizaki KMS-1122MLH Service Manual

D. Control Switch and Service Switch
2 switches are used to control the operation of the appliance. These switches are referred
to as the control switch and service switch. They are located on the KMS 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 water pump. The service switch has three positions: "DRAIN,"
"CIRCULATE," and "WASH."
Note:
1. When the service switch is active (control switch in the "SERVICE" position), power
is supplied to the water pump in all three positions.
2. When the control switch is in the "OFF" or "ICE" position, the service switch is
de-activated. In this state, it can be left in any position.
a) DRAIN
The appliance utilizes a pump-out drain system. When the control switch is in the
"SERVICE" position and the service switch is placed in the "DRAIN" position, power is
supplied to the water pump and drain valve.
b) CIRCULATE
When the service switch is active and placed in the "CIRCULATE" position, power is
supplied to the water pump only. This setting is used during cleaning to circulate cleaner
for extended periods of time over the outside surface of the evaporator.
c) WASH
The appliance utilizes a solenoid operated cleaning 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.
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