Pentair Autotrol 255 Logix 740-760 - Page 53

Installer Manual 255-LOGIX 740-760 - Maintenance
Ref. MKT-IM-001 / C - 08.10.2019 53 / 76
* Electronic parts – durability strongly affected by power source quality and stability.
** Elastomer durability is strongly affected by raw water concentration in chlorine and its derivatives.
*** 255 being already equipped with an aircheck, the safety brine valve should not be equipped with an aircheck too otherwise
this may create hydraulic interferences and cause brine draw malfunction due to safety brine valve aircheck not opening.
**** Wear part.
Motor, motor
cable and
optical sensor
harness
Check Check Check Check Replace
Optical sensor Check Check Check Check Replace
Inlet Hardness Check Check Check Check Check
Residual
hardness
Check / adapt
mixing screw if
necessary
Check / adapt
mixing screw if
necessary
Check / adapt
mixing screw if
necessary
Check / adapt
mixing screw if
necessary
Check / adapt
mixing screw if
necessary
Electronic /
settings*
Check Check Check Check
Check / replace
if necessary
Transformer* Check Check Check Check
Check / replace
if necessary
Chlorine
generator (if
present)
Check / clean Check / clean Check / clean Check / clean
Check / clean /
replace if
necessary
Turbine
manifold****
Check / clean Check / clean Check / clean Check / clean Replace
Turbine cable
(if turbine
manifold
present)
Check Check Check Check Replace
Valve
watertightness
Check Check Check Check Check
Valve to piping
watertightness
Check Check Check Check Check
Items 1 year 2 year 3 year 4 year 5 year