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Section Two
POWER CLEAN FILTER MODELS
WITH TOWER WATER FEED
Models: DU910PFG, DP920PFG, DU920PFG
THEORY OF OPERATION
Console Configuration
Model DU910PFG
Models DP920PFG, DU920PFG
1. Once the tub has filled with hot water the motor begins to rotate forcing the water up through the
pump chamber and out through the spray arms. Two spray jets on the underside of the lower spray
arm direct water down onto the fine mesh screen of the pump housing to clear soils that may
collect there during the wash cycle.
(Fig. 2-2)
2. As water and soils return to the lower pump area, the chopper blade grinds the particles into
smaller sizes that then pass through the perforated plate into the upper chamber of the pump. The
pump impeller causes the soil ladened water to be lifted and moved to the outer edges of the pump
chamber where they are forced into the separator. Clean water is then forced up through the spray
arms and fine mesh screen.
(Fig. 2-3)
3. When the drain cycle begins, the drive motor changes direction. This relieves the pressure on the
two check balls, opening the drain system.
4. Water is pumped from the tub carrying soils from the separator into the drain sump of the pump.
(Fig. 2-4)
5. Soiled water is pumped out of the dishwasher through the check valve and drain hose.
(Fig. 2-4)
Fig. 2-2
Fig. 2-4Fig. 2-3
POWER CLEAN FILTER Pump and Motor Operation
Fig. 2-1