SECTION 4-3
OPERATION
FLOWMAX RO MANUAL REV: B 05/1999
USFilter
United States Filter Corporation
4.2 NORMAL OPERATION
Use this section for daily startup or to restart the system after a short term shutdown.
1.
BEFORE starting the RO unit, verify that the following conditions exist:
DEVICE
CONDITION
RO system H-O-A switch (HAND-OFF-AUTO)
OFF
Starter Panel disconnect switch (MCP)
ON
Control Panel circuit breaker (inside Control Panel)
ON
Control Panel GFCI circuit breaker (for instrumentation)
ON
manual feed water isolation valve (V-1)
OPEN
instrument isolation air valve
OPEN
flush mode selector switch (MANUAL-OFF-AUTO)
AUTO
pump discharge throttling valve
1/8 to 1/4 OPEN
reject globe valve
open 4 full turns
reject bypass ball valve
1/8 to 1/4 OPEN
any valves in the reject to drain line
OPEN
any valves in the process supply line
open
manual product divert valve
closed
pre treatment equipment
ready for use
post treatment equipment
ready for use
storage tank
ready for use
IF ALL THE ABOVE CONDITIONS EXIST, THE SYSTEM IS
READY TO START. CLOSE AND LATCH THE CONTROL
PANEL DOOR BEFORE STARTING THE RO UNIT. IF ONE
OF THE SETTINGS IS INCORRECT, CORRECT THE
SETTING PRIOR TO PROCEEDING.
2.
Turn the H-O-A switch to the AUTO position. This will start the system.
NOTE:
The pump will not start for 60 seconds. When you turn the H-O-A switch to AUTO, the
feed inlet valves opens to fill the unit with water under low pressure. This purges any air
out of the unit. (If any leaks are noticed at this time, turn off the system and correct the
leaking component before the pump starts.) After the 60 second delay, the pump will
start. Be prepared to adjust the pump discharge and reject valves to correctly set the
product and reject flow. If the system does not start up after the initial 60 second delay,
check the storage tank. If it is full, the system will not start until the tank drops below the
setup point by the tank level sensing device. If the low feed pressure light is on, the
system also will not start.
