2-2. ROWPU CONTROLS AND INDICATORS - cont.
Backwash Timer. Refer to figure 2-15. The backwash timer is mounted on the rear of the multimedia filter.
It automatically starts and stops the different stages of the backwash cycle.
Indicator lights inside the timer
cover (Models WPES-10, WPES-20, and WRES-30) or on the outside of the timer (Models H-9518-1, H-
9518-2, and H-9518-3) show which stage of the backwash cycle the unit is in.
An OVER CURRENT
PROTECTION PUSH TO RESET button resets the backwash cycle on Models WPES-10, WES-20, and
WPES-30. A circuit breaker resets the backwash cycle on Models H-9518-1, H-9518-2. and H-9518-3.
operator control is required.
Figure 2-15. Backwash Timer.
Change 2 2-21