26
Flush Cycle Adjustment
Before shipping from the factory the Farallon watermaker flush cycle is adjusted to factory
default settings. After initial start up, and annually thereafter, the flush cycle should be
checked. The water going overboard at the end of the flush cycle should not taste salty
(<1000ppm). If the water at the end of the flush is still salty, or to minimize the amount of
fresh water used during the flush cycle, follow these instructions to optimize the cycle.
Next adjust the Flush Duration
. Follow the instructions in section 2 of this manual to access
the program mode from the remote display. Scroll through the menus until you reach the
display titled
‘Flush Duration’
. This is set to a factory default of 7 minutes and can be
increased or decreased by whole minute values only. If the system requires less water for a
fresh water flush, then this number can be decreased. If the membranes are not completely
flushed at the end of the factory default flush cycle then this number should be increased until
the brine discharge salinity is within acceptable limits.
After setting the ‘Flush Duration’, scroll to the
‘Pump On Time’
menu. This is set at a factory
default of
360 seconds
, and should only be adjusted in
increments of 60 seconds
. If you
increased the flush time in the step above, then you
MUST increase the ‘Pump On Time’
accordingly
. An
increase of 1 minute
in the flush duration will require the ‘Pump On Time’ to
be
increased by 60 seconds
. If the system required more water to properly flush the
membranes, then increase the ’Pump On Time’ value to
420 seconds
, if the system required
less water, then decrease the value to
300 seconds
. Run the machine for 10 minutes, then
perform a fresh water flush and test the brine discharge after each time you change the value to
see if the you have achieved the desired affect. See the formula below for the relationship
between ‘Flush Duration’ and ‘Pump On’ and ‘Pump Off Time’.
Flush Duration in minutes X 60 = Pump On Time + (Pump Off Time X 2)
Ex:
Flush Duration = 7
Pump On Time = 360
Pump Off Time = 30
7 X 60 = 360 + (30 X 2)
420 = 420
Note: If after adjusting the fresh water flush regulator and the Flush Duration the flush cycle
is still not operating properly, please contact the factory for further instructions.
Содержание Farallon 1800
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Страница 15: ...15 John Guest Super Speedfit Fittings...
Страница 39: ...39 Oil nipple threads and inside of hose with silicone oil or diluted soapy water DO NOT OIL HOSE COVER...
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Страница 44: ...44 Farallon 1800 Settings Farallon 2800 Settings...
Страница 45: ...45 Float Switch Wiring...
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