Commissioning; Water Filling, Draining And Waterproofness Inspection - Pentair FLECK 9100 SXT Installer Manual

7

Commissioning

Info
This chapter is available for standard regeneration flows. Contact your supplier if the
actual regeneration is not standard and if you need assistance.
7.1

Water filling, draining and waterproofness inspection

1. With the bypass still in bypass position (inlet and outlet of the valve closed), plug in the SXT
controller to the power source.
2. Proceed to programming according to your system specification if not done yet.
3. Start a manual regeneration by pressing the regen button for 5 seconds. The piston will move
into backwash position. If the first cycle is not backwash, quick cycle the valve until the piston
is in backwash position. Once in this position, unplug the SXT controller from the power
source.
4. With the bypass still in bypass position, put the bypass slowly in service position.
5. Open the nearest faucet close to the system.
The valve and tank will slowly get filled with raw water, allowing air to be purged by the drain
and/or by the open faucet next to the system. Open the inlet progressively until fully open
position.
6. Once the drain runs clear and the bypass valve is fully in service position, plug in again the
SXT controller to the power source.
7. Push on the regen button once to move the piston to the next regeneration cycle position.
Leave the valve 1 minute in each positions and move to the next one, until RF (brine refill
cycle) is displayed. When RF is displayed, let the valve run the entire cycle and check the level
of water in the brine tank or cabinet. The level of water in the brine tank should be about 5 cm
above the salt platform. You may want to mark the level on the brine tank as this can be used
as an indicator for the future lifetime of the softener.
8. Once RF is completed, the valve will automatically go back into service position (unless non-
standard regen sequence is programmed). Start again a manual regeneration by pressing for
5 seconds on the regen button. The valve will move to backwash position.
9. Press the regen button once to move to brine draw position. Check to see in the brine tank is
the water level decrease.
10. Once the draw function is observed and confirmed (level of water in the brine tank or cabinet
has decreased), you may go through each cycle pushing on the regen button until RF, leave
the water come back to the 'full' level, and then push on the regen button so that the valve
returns into service position.
11. Repeat above procedure, from its second step, for the second tank.
12. Slowly open the outlet manual valve, and close the bypass manual valve. The system is now in
service.
13. Close the faucet.
Ref. MKT-IM-004 / E - 06.10.2020
Installer manual Fleck 9100 SXT - Commissioning
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