Additional Tips; Sanitization; System Disinfection - Pentair Autotrol 255 Installer Manual

Installer Manual 255/LOGIX 742-762-764 - Commissioning
7. Draw water from the brine tank.
→ From the treated water position (cycle C0), advance the valve to the draw brine position. Press
for 5 seconds.
The controller will begin a manual regen, and advance the control valve to the cycle C1
(Backwash). Press
→ With the controller in this position, check to see that the water in the brine tank is being drawn
out of the tank. The water level in the tank should recede very slowly.
→ Observe the water being drawn from the brine tank for at least 3 minutes. If the water level
does not recede, or goes up, check all hose connections. C2 should be displayed.
8. If the water level is receding from the brine tank you can then advance the controller back to the
treated water (C0) position by pressing
the C0 position.
9. Finally, turn on a faucet plumbed after the water softener. Run the faucet until the water runs
clear. Add salt to the brine tank.

7.1.2. Additional tips

• When the controller is first plugged in, it may display a flashing hourglass and the message
"Err 3", this means that the controller is looking for home position. If the "Err 2" is displayed,
check that the incoming power frequency matches the controller;
• with 764 controller programmed in A or P mode "Err.4" may also be displayed on the screen
when the controller is looking for secondary valve's home position;
• the preset default time of regeneration is 2:00 AM;
• power supply? The World controller senses the electrical input and decides which is needed;
• the 700 Series controller can be programmed to regenerate on specific days of the week;
• if electrical power is not available, the camshaft can be rotated counter-clockwise by hand if the
motor is removed;
• the 700 Series controllers send commands to the motor for camshaft movement. However,
water pressure/flow are required during the regeneration cycle for backwash, purge and refill,
and brine draw to actually take place;
• make sure the control power source is plugged in. The transformer should be connected to a
non-switched power source;
• you can start programming from the beginning by resetting the amount of media, see chapter
6.7. Resetting the controller, page 57.
7.2.

Sanitization

7.2.1. System disinfection

The construction materials of the modern water softener will not support bacterial growth, nor will
these materials contaminate a water supply. During normal use, a softener may become fouled with
organic matter, or in some cases with bacteria from the water supply. This may result in an off-taste
or odour in the water.
Some softeners may need to be disinfected after installation and some softeners will require periodic
disinfection during their normal lifetime.
Depending on the conditions of use, the softener type, the type of ion exchanger, and the disinfectant
available, a choice can be made among the following methods.
60 / 92
and to advance to cycle C2 (Draw).
and simultaneously to advance the controller to
Ref. MKT-IM-021 / A - 20.02.2019