460TC or Logix 740 - Which Timer Replacement is Best?
Hello. I am helping my father purchase an Autotrol 255 Valve Module and I noticed that there are two option I can choose from.
There is one that comes with the 460TC timer and one that comes with the 740 Logix timer.
I basically want to know what the best choice is.
Please let me know what the pros and cons are of each and ultimately which one I should be purchasing. Thanks.
It has improved drive motor, electronic timer, and only 3 drive gears ( old 440 had 8 and 4 that loved to break ).
Note: Once programmed and running, there is no way to tell when the next regenerate is going to occur by looking at the timer assembly.
Same is true of the Logix 740.
Only the metered controls ( Logix 760 or 762 ) would be able to tell you when to expect the next regeneration,
based on Gallons remaining. This amount is shown on the screen, counting down, as water is used.
The Logix 740 upgrade 255, or Logix 740 upgrade for Performa 263,268 is a better design ( all the cycle times are controlled by the electronics ) , and since it uses a rear drive motor ( with 1 gear ) , it is less likely to fail mechanically.
It's a little more involved to program, and requires you know your resin capacity ( amount in cu.ft. ).
However, please NOTE: The 740 Logix is only available for use on the 255, 263, or 268 Valve Bodies, and if you have an older 155 or 163, 168, and just need / want to replace your 440 timer, you should use the 460TC or replace the Entire Valve Head ( with newer 255 or Performa 263 / 268 Valve ).
Review the information on the two ( we have photos, videos, copies of directions, etc ), and you can make an informed decision. Either will work.
see:
460TC timer assembly
and
255 upper valve body with 460TC timer
OR
255 Upper valve body with Logix 740 timer
740 and 760 Logix Timer Programming Instructions
AND The BEST would be the complete metered ( regenerates based on actual demand - water used ) control Logix 760 on complete new 255 Valve,
see:
Complete Valve Head 255 with 760 Logix Controller
and
Old Valve Replacement Guide / Directions
