KMD-201AA KMD-201AWA - Hoshizaki

7. SWITCHESTwo different control switches are used for operation of KMD-201AA and KMD-201AWA.These switches are referred to as the "control switch" and the "service switch" and arelocated on the control box.[a] CONTROL SWITCHThis switch is used to place the machine into one of three modes: “OFF” (center position),“ICE” (upper position), and “SERVICE” (lower position).[b] SERVICE SWITCHWhen the control switch is placed in the “SERVICE” position, power is supplied to theservice switch. The service switch can be used to perform two functions: draining the tank(“DRAIN” = lower position) and washing the icemaking compartment (“WASH” or“CIRCULATE” = upper or center position). Both the “WASH” and “CIRCULATE” positionsactivate the same function of washing the icemaking compartment. The service switch isactivated in any of the three positions when the power is supplied to the pump motor.1) “DRAIN”KMD-201AA and KMD-201AWA employ the pump-out drain system. When the serviceswitch is active and placed in the lower position, power is supplied to the pump motor anddrain valve.2) “WASH” or “CIRCULATE”When the service switch is active and placed in the upper or center position, power issupplied to the pump motor. This function is to clean the evaporator plate.18