V.
START-UP AND OPERATION
CAUTION !!!!!!!!!!!!
Please be aware that when the main power disconnect is turned to the “ON”
position the STS system valves and linkage will automatically rotate into a
backwash configuration and will stay in the backwash cycle for 3 minutes.
The valves and linkage should then rotate back into the filter operation
mode.
NOTE
:
Make sure that all suction valves (from the source of water to the pump
intake) are fully opened when the pump is running. Operating the system
with a partially closed suction valve can damage the pump and/or affect
the system’s performance. Each model requires a minimum liquid
submergence level (above the pump intake) to meet the pump’s Net
Positive Suction Head Required (NPSHR) to avoid air intrusion or
cavitation (vortexing at point of source). See appropriate pump curve
included with this manual. This is also very important when LAKOS
Hydroboosters are in use
1.
Make sure that there is water in the main inlet line to provide flooded suction
to the STS system pump.
DO NOT DRY RUN THE PUMP!
All pumps
require a wet/primed suction before starting, using water as a lubricant for
their seals. John Crane-type seals (e.g., Silicon Carbide Seals) can wear out
in 20 seconds of dry operation. It only takes a small amount of water to
lubricate the seal, and it vaporizes during pump operation.
2.
Turn the main disconnect switch to the “ON” position. The valves and linkage
should move and rotate in the backwash mode. After 3 minutes the valves
should rotate back into the filter mode.
3.
Turn the HOA switch to “HAND” and “bump” the pump motor to check fan
rotation to make sure pump is rotating in the correct direction. Turn the HOA
switch back to “HAND” and check the system for any leaks. If leaks start to
develop turn the HOA and main disconnect off immediately and fix the
problems.
4.
Once the STS system is running any air in the system should be vented
automatically out of the air relief valve located at the top of the STS system
piping.
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