Spectra Watermakers Farallon 1800, Installation And Operating Manual

Page: 31 / 53

31
Storage & Winterizing
Warning! Use only potable water antifreeze (Propylene Glycol). That does
not contain any Ethyl Alcohol.
Do not use automotive antifreeze (Ethylene Glycol).
Propylene Glycol is an effective biocide and antifreeze only at concentrations above 25%.
Commercially available products range from 25 to 60 percent. They are usually labeled with a
temperature rating. “Minus 50” antifreeze is already diluted to 25%. “Minus 100” is a 60%
solution. Purchase the strongest antifreeze available. Use enough to ensure that the system
contains at least a 25% solution even after dilution with the residual water inside the
watermaker.

Step 1: Flush the system twice . Push the “Auto Flush” button on the MPC-5000 display,
when the first flush has been completed, press “Stop” to cancel the 5 day interval timer,
then press “Auto Flush” again.

Step 2: Open pressure relief valve on the Spectra-Pearson Pump .

Step 3: Pour the propylene glycol into a bucket. Follow the instructions on the container.

Step 4: Connect the intake service hose to the service port of the Intake Service Module .
Lead the hose into the bucket. Turn the service valve on the Intake Service Module 180°, so
the intake is now coming from the bucket.

Step 5: Set the switch on the Electrical Box to “Service System” to turn on the Spectra
Pearson Pump. Pump as much of the water remaining inside the water maker overboard as
possible. Run the feed pump until you see antifreeze begin to appear in the brine overboard
hose. Set the switch to “Run Auto” to stop the Spectra-Pearson Pump.

Step 6: Attach the brine discharge service hose from your service kit, to the Brine
Discharge Service Module and lead the hose to the bucket.
 Step 7: Set the switch to “Service System” to circulate the antifreeze for about 20 minutes.
Clean Up:
 You may at this point pump the bucket dry by using the feed pump switch and turning the
brine discharge service valve back to the run position. Stop when the bucket is empty.

Remove the service hoses from the Intake Service and Brine Discharge Service Modules
and return the valves to the run positions.

Turn off the power to the system and the MPC control.

LEAVE THE PRESSURE RELIEF VALVE ON THE SPECTRA-PEARSON PUMP
OPEN.