TM 10-4610-229-10
2-1. OPERATOR'S CONTROLS AND INDICATORS (CONT)
PRETREATMENT ASSEMBLY (CONT)
Control or
Indicator
Function
Valves:
V-1,
Valves V-1, V-2, and V-3 look the same.Each valve
V-2, and V-3
controls flow to and from one multimedia filter.
Their settings are as follows:
SERVICE: Directs water to multimedia filter.
CLOSED: Cuts off water flow.
BACKWASH: Directs water to waste during-backwash
operations.
Valve: V-4
Same as V-1 through V-3 except for settings.
Its
settings are as follows:
SERVICE: Directs water to cartridge filter.
CLOSED: Cuts off water flow.
BYPASS: Bypasses multimedia filters during reverse
osmosis membrane cleaning procedure.
2-9
