Dacor Dishwasher Wartungshandbuch PDF herunterladen (Seite 5)

Page 2-2

seCTion 2 - oPeraTion

Wash System

Once filling is complete, the dishwasher enters the

pre-wash phase. The pre-wash phase conditions the

soil with water and detergent to prepare it for removal

in the main wash phase.

Once water enters the tub, the pump draws the water

into the sump through a primary filter at the bottom

of the tub to prevent food from circulating through the

wash system and redepositing on the dishes. In the

center of the primary filter is the lower spray arm and

drain filter assembly. The drain cap, snapped into the

drain cup, prevents food particles from entering the

drain section of the sump.

As the wash water flows through the filters, soil levels

and water temperatures (see Soil Sensing section, this

page) are measured by the Soil Sensor/Thermistor

assembly. The wash motor discharges the wash water

through two ports, feeding the lower, center, and

upper spray arms. The larger of the ports feeds water

through a “Y” hose to separate the lower and center

spray arm wash water. The water flowing to the center

spray arm first passes through an inline water heater

before entering the delivery tube. The water flowing to

the lower spray arm passes through the sump on its

way to the lower spray arm.

Soil Sensing

Soil sensing is performed in all wash cycles except the Rinse Only cycle. Mounted on the right side of

the sump, the soil sensor transmits light from a transmitter to a receiver to measure the amount of soil

in the water. This information will be used by the control to determine the length of the cycle.

Once pre-wash loosens food on the dishes, the motor stops for 30 seconds. This allows the wash water

and food soils to settle for the soil sensor to check the soil levels in the water.

Now that this reading is taken, the dishwasher drains the dirty water and fills again for the pre-wash

rinse. Once this rinse is complete, the wash motor pauses again, a soil level measurement is again

taken. The control uses these readings to adjust the wash cycle to ensure a clean load of dishes.

FIGURE 3

FIGURE 2

Sump

“Y” Hose

Inline Heater

Wash

Motor

Thermistor

Soil Sensor

1 2 3 4 5 6 7 8 9 10 ... 33 34

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