© by WilTec Wildanger Technik GmbH
Item 51792, 51793
Page 6
06 2021
-1
Installation notes
•
Make sure that the max. working pressure is not exceeded. Use a pressure control valve when
the system has a booster pump.
•
If the pump position is higher than the water level, a back-water control valve must be installed.
•
If the pump position is lower than the water level, an isolation valve must be installed. It could
stop the water return while the device is inspected.
•
Make sure that the connecting adaptors and hose are as little bent as possible, connections
should be shortened.
•
Ensure that solvents are not excessively applied to fittings as these, touching the O-ring, might
cause sealing problems.
•
Do not over-tighten fittings or adapters
Commissioning
1. Inspect all connections to see if they are correct and secure.
2. Press the adjustment handle upwards and to BACKWASH position.
3. Install and start the pump accordingly to the instructions.
Note:
All suction and discharge valves must be open when starting the system. Failure to do so
could cause injuries. Make sure that the filter vessel is filled with water before starting up the
pump, or the pump will be damaged.
4. Once water steadily flows out of the waste line, run the pump for at least another 2 min. The
initial filter back-washing is recommended to remove any impurities out of the sand.
5. Set the adjustment lever to RINSE position. Start the pump and operate it until the water in the
sight glass is clear (after about 1½ to 2 min).
6. Turn the pump off, set the adjustment handle to FILTER position, and restart the pump. The
filter now operates in the normal filter mode, filtering particles from the pool water.
NOTES:
•
Note the initial pressure gauge value when the filter is clean. It will vary depending upon the
pump and pipes. As the filter removes dirt and impurities from the pool water, the accumulation
in the filter will cause the pressure to rise and flow to diminish.
•
When the pressure gauge value is 0.55
–0.69 bar (8–10 psi) higher than the initial “clean” pres-
sure noted, it is time for a filter backwash (cleaning).
•
IMPORTANT!
To prevent unnecessary strain on pipes and valves, always shut off the pump
before changing the adjustment handle position.
•
To prevent quick wear and tear or damage to the pump and filter and for proper operation of the
system, regularly clean the pump filter and skimmer baskets.
Filter control valve functions
FILTER
Set valve to FILTER for normal filtering.
BACKWASH
For cleaning filter. When filter pressure gauge rises 0.55
–0.69 bar (8–10 psi) above
start-up (clean pressure), stop the pump, set the handle to BACKWASH. Start the pump
and backwash until the water in the sight glass is clear (approx. 2 min or less depending
on the dirt accumulation).
RINSE
After backwashing, with the pump switched off, set the valve to RINSE. Start the pump
and operate it for about 2 min. This ensures that all dirty water from backwashing is
rinsed out of the filter to waste, preventing a possible return to the pool. Stop the pump,
set the valve to FILTER, and restart the pump for normal filtering.
WASTE
To bypass filter for draining or lowering water level and for suck heavy debris directly
to waste.