Spectra Watermakers LB-1800C, Installation And Operating Manual

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Handling Spectra Connect Alarms or Faults
Faults are (potentially hazardous) conditions that might occur during running of your watermaker. The
control board has the ability to monitor these faults in real time and take necessary actions to prevent
damaging your equipment.
HIGH PRESSURE FAULT
High pressure fault is triggered if
Outlet pressure (Feed/Membrane pressure) > Pressure Limit
If a high pressure fault is triggered, the system goes to low production mode if it is running in high
production mode, or stops the operation if it is already running in low production mode. Then the
system will begin the Auto Store mode.
Resolutions
Check for kinked or blocked hoses.
Confirm “#3 Sensor PSI High limit ” and “#3 Sensor PSI Offset ” options on Outlet Settings.
Clean membrane.
SYSTEM STALL FAULT
System stall fault is triggered if
There is no product flow for 1 minute continuously.
If system stall fault is triggered, machine will stop the current run cycle and will prompt to restart. If
restarted it will retry the previous running mode. If the stall condition persists even after restart,
the system will begin the Auto Store mode.
Resolutions
Confirm product water at membrane endcap.
Check intake line for restrictions, blockages or air leaks.
Close Pressure Relief Valve on Pump.
Confirm controller settings correct.
SERVICE PREFILTER FAULT
The Service Prefilter fault is triggered if
Inlet Pressure(boost pressure) < Low Vacuum Limit
If the Service Prefilter fault triggers, the system goes to low production mode if it is running in high
production mode or stops the operation if it is already running in low production mode. Then the
system will begin the Auto Store mode.
Resolutions
Change prefilters and the sea strainer screen.
Confirm adequate boost pressure in inlet pressure settings.
Check for obstructions in intake line.
Check sensor for proper operation
POOR QUALITY FAULT
The High Salinity fault triggers if
The Salinity of the product water is above the threshold (measured salinity > Salinity 1
threshold) for more than 8 minutes.
If the High Salinity fault is triggered, the machine will stop the current run cycle and will prompt to
restart. If restarted it will retry the previous running mode. If the High Salinity fault condition per-
sists even after restart, the system will begin the Auto Store mode.
Resolutions
Check pump operation - Clark Pump (pressure relief valve closed), Feed Pump (moving wa-
ter).
Confirm product water quality.
Membrane damage - clean or replace.
Salinity probe out of calibration.
Clean or replace salinity probe.