20
(OC5000 only). Pushing
START once will initiate Forward Flush 1,
pushing
START twice in 0.5 seconds or less will initiate
Forward Flush 2, pushing
STOP will bring on Stop mode. If high
feed pressure, low feed pressure, or high permeate conductivity
condition occurs, the controller will go into Fault mode.
FORWARD FLUSH 1
During Forward Flush 1, membranes are rinsed with high flow of
raw water allowing both permeate and concentrate run freely to
drain. Forward Flush 1 occurs during normal operation with
frequency set in configuration steps 1.5, 1.6. It is also activated in
Service mode if the controller is going to transition to Standby after
reading high tank level or pressure. It can be manually activated
while in Service by pushing
START button.
Status of outputs in FF1
High pressure and
antiscalant pumps
on
Entry valve
open
Forward flush valve
open
Bypass valve
closed
Alarm
off
Pushing
STOP will abort Forward Flush 1 and bring the
controller to Stop mode. Pushing
START will cycle the controller to
Forward Flush 2 mode. If high feed pressure or low feed pressure
occurs, the controller will go into Fault mode. Low feed pressure
fault during Forward Flush 1 can be disabled in configuration step
1.7.
FORWARD FLUSH 2
Forward Flush 2 consists in rinsing membranes with permeate
supplied from permeate tank by permeate pump.
Forward flush 2 with permeate is only possible if the RO
system is equipped with rinsing electric valve.
Содержание MO-12
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