Pentair AUTOTROL LOGIX 742 User manual

Logix™ No-Salt Detector (Chlorine Generator)
Installation Instructions (North American)
The Logix 742 and 762 controls feature a check salt light
which indicates when the end user should add salt to the
regenerant tank. The Logix control can also be
programmed to produce a low level of chlorine to
chlorinate the resin bed during regeneration. Potassium
chloride or sodium chloride may be used. Installing this
feature is simple.
Step 1
Remove the Logix control from the valve and disconnect
power.
Step 2
Insert the small connector of the no-salt detector cord to
the back of the Logix control. See Figure 1.
Step 3
Remove the existing refill controller and ball from the valve
and replace it with the no-salt detector refill flow control.
See the illustrations to the right for the location of the refill
controller.
Step 4
Insert the large white connector of the no-salt detector
cord to the end of the refill flow control. Press it in firmly to
make sure there is good contact.
Step 5
Reconnect power to the Logix control and reinstall the
control to the valve.
Step 6 742/762 Programming
To activate the chlorine generator/salt detector on the
742/762, follow these instructions:
1. Power up the 742/762 control.
2. Press the UP and DOWN buttons
simultaneously for 5 seconds to enter Level
II programming.
3. Scroll to parameter P13 using the DOWN button.
The controller will display the previous setting.
4. Press the SET button. The display will begin to
flash.
5. Set to one of the following settings as desired:
0 = chlorine generator/salt detector disabled.
1 = salt detector enabled.
2 = chlorine generator with salt detector
enabled.
6. Once the correct setting above is selected, press
SET to enter your setting. After 30 seconds the
controller will return to normal operation mode.
Back of Logix Control
255 Valve Identification
Refill Controller
Injector and Cap
No-Salt Detector
Check Salt Light
Performa Valve Identification
Injector and Cap
Refill Controller
Check Salt Light
Figure 1
Figure 2
Figure 3
Release Tab
(Chlorine Generator) Outlet

© Copyright 2005 General Electric Company
Printed in USA P/N 1268103 Rev B
Step 7
Remove the overlay sticker from the Logix control and
replace with the included new overlay that features the
check salt light opening. The old overlay sticker can be
easily peeled off with a knife or screwdriver.
Summary Chlorine Generator
The chlorine generator feature is constantly checking for
salt and will produce chlorine throughout the regeneration
process. This automatic monitoring system will only
produce chlorine when a salt/regenerant is available in the
brine line.
The chlorine generator will produce up to a maximum of
4 ppm of chlorine. The chlorine generator is not designed
to be used with special medias that require chlorine for
proper application. The chlorine generator provides
chlorine for aesthetic chlorination of media bed.
No Salt Detector
The no salt detector operates like the chlorine generator,
except no chlorine is produced.
The check salt light will illuminate whenever the brine
concentration falls below 5 to 7 salometer point.
NOTE: Ensure that the refill rate of the probe
assembly matches the original refill flow
control assembly.