Technical information

12/01/02

RESERVOIR FLUSH SYSTEM

A displacement device ( cap or assembly ) is positioned

over the top of the overflow stand pipe. This device al-

lows sediment to be pulled from the bottom of the reservoir

and flush down the drain when overflow occurs. Water

should always overflow the stand pipe for a short period

towards the end of harvest to allow this flushing action. To

extend this flushing action, adjust dip switches 1 & 2 for

longer harvest. If overflow does not occur, you likely have

restricted water flow into the unit. Check the inlet water

valve screen, incoming water line size, or the external filter

system. The displacement device must be in position for

proper operation. If not, water goes down the drain during

freeze and short cycling occurs.

PUMP-OUT CHECK VALVE

A mechanical spring & seat check valve is located in

the pump-out housing. If this check valve sticks open,

water flows down the drain during freeze and a 5 minute

freeze cycle occurs. In this case, check for a displaced

seat, trash or a weak spring. Replace the spring if it is

weak. When reinstalling the check valve, the seat always

faces the pump supply.

KML PUMP OUT

The Standard KM series has a dual winding pump motor

that reverses direction during the pump-out cycle. The

reverse rotation pumps sediment down the drain. The KML

models have a single winding pump motor that does not

reverse. Instead of a pump-out check valve and reversing

pump, a drain solenoid and the pump motor are energized

by a relay so that sediment is pumped out.

KM CONTROL SWITCH

The standard KM models have a three position control

switch. The switch positions are “ICE-OFF-WASH”. Also, a

manual cleaning valve includes a micro-switch which opens

the control transformer circuit to the control board during

the cleaning process. This cleaning valve must be in the

horizontal position to make ice.

The KML models have 2 switches. The control switch po-

sitions are “ICE- OFF-SERVICE”. With the control switch in

the SERVICE position, the SERVICE switch is energized.

12/20/03

2/20/03