Commissioning; Water Filling, Draining And Waterproofness Inspection; Activating A Single Valve System (System #4); And #14) - Pentair FLECK 2910 NXT Installer Manual

Installer Manual Fleck 2910 - NXT - Commissioning
7.

Commissioning

A
Note
This chapter is available for standard regeneration types. Contact your supplier if the actual
regeneration is not standard and if you need assistance.
7.1.

Water filling, draining and waterproofness inspection

7.1.1. Activating a single valve system (System #4)

A With the bypass still in Bypass position (inlet and outlet of the valve closed), plug in the NXT
controller to the power source.
B Proceed to programming according to your system specification if not done yet.
C Start a manual regeneration by pressing the regen button for 5 seconds. The valve will move the
pistons, placing the lower piston into regeneration position and the upper piston into backwash
position. Once in this position, unplug the NXTcontroller from the power source.
D With the outlet manual valve still closed, slowly open the inlet manual valve. The valve and tank
will slowly get filled with raw water, allowing air to be purged by the drain. Open the inlet let
progressively until fully open position.
E Once the drain runs clear and the inlet manual valve fully open, plug in again the NXT controller
to the power source.
F Push on the regen button once to move the valve pistons to the next regeneration cycle position.
Leave the valve 1 minute in each positions and move to the next one, until C5 is displayed. When
C5 is displayed, let the valve run the entire cycle and check the level of water in the brine tank.
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.
G Once C5 is completed, the valve will automatically go back into service position. Start again a
manual regeneration by pressing for 5 seconds on the regen button. The valve will move to
backwash position.
H Press the regen button once to move to brine draw position. Check to see in the brine tank is the
water level decrease.
I Once the draw function is observed and confirm (level of water in the brine tank has decreased),
you may go through each cycle pushing on the regen button until C5, leave the water come back
to the 'full' level, and then push on the regen button so that the valve returns into service
position.
J Slowly open the outlet manual valve, and close the bypass manual valve. The system is now in
service.
K Fill the brine tank with salt. You may want to mark the level of water in the brine tank when
completely refilled with water and full of salt. In the future, after each regeneration, you can
visually control that the quantity of water refilled should be between the 2 marks done. Marking
are optional, but may allow to visually detect a irregularity during regeneration that may lead to
softener inefficiency.
L With the brine tank completely refilled and full of salt, adjust the safety brine valve in the brine
well. Make sure the overflow elbow is installed above the float level.
M After the softener has been running a few minutes in service, proceed to hardness test on outlet
water to make sure the water is treated as per requirements.
64 / 98 Ref. MKT-IM-002 / A - 18.11.2016