27
Flush Adjustments
Adjustments for your Catalina 340c are typically calibrated from the factory to ensure that sea
water is thoroughly flushed out of the watermaker using the least amount of fresh water.
However, due to different lengths of hose runs, different rates of flow, and different pressures
in shipboard fresh water systems, the flush duration should be optimized for your boat. The
flush cycle is adjusted with 2 settings: the pump speed and the flush duration.
Check the pump speed
1.
Close the thru
-
hull for the raw water inlet.
2.
Push the Fresh Water Flush button. The flush valve will open and the feed pump will start
at Flush Speed. If the flush completes normally, then the Flush Cycle is set properly.
3.
If the display alarms
‘
Service Prefilters
’
then the fresh water pump is not supplying enough
water, and the feed pump needs to be slowed down.
Slowing down the pump during a Fresh Water Flush
Inside the feed pump module, under the Conn box, is the pump
speed controller. On the speed controller board are two magnetic
reed switches for adjusting the pump motor speed. The switches are
narrow black bars,
5/8”
(16mm) long. The increase speed switch is
labeled S2; the decrease speed switch is labeled S3. Each time a small
magnet is placed near the switch with the pump
is running, the speed will change slightly.
1.
Open the thru
-
hull for the raw water inlet.
2.
Push the Fresh Water Flush button.
3.
Gently tap a magnet on the S3 Reed Switch (Decrease Speed Switch). Wait 3 seconds
between each pass of the magnet.
4.
Gently tap the magnet 3 times, then go back to step 3. Repeat
this process until the Spectra Connect controller no longer
alarms Service Prefilters.
Once you
’
ve adjusted the speed correctly, the speed controller will
stay programmed for this speed during fresh water flushes.
Calibration continued...
Increase
speed
switch
Decrease
Speed
switch
Содержание Spectra Catalina 340C
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