Lakewood Model 1575e Cooling Tower Controller

Includes 1575e with cooling tower Left Exit flowswitch and sensor

The Model 1575e uses the latest in microprocessor capability,

giving the user a high level of application flexibility. A large

illuminated graphics screen, multiple inputs, and very easy setup

characterize this new technology. The Model 1575e is ETL


Cooling Tower Water Treatment Controller, Including Flow Switch Plumbing

And Conductivity Sensor On A Mounting Plate

  • Removable power cord and receptacles for simple conduit installations.
  • Scheduled feed, which can use three relays for biocides or other chemicals.
  • Two (2) water meter inputs, two (2) drum switch inputs, conductivity input, a flow switch input, a 4-20 mA

output, and a 4-20 mA input are all standard features.

  • The 4-20 mA input can be used with a transmitter for one of the following: remote conductivity, makeup

conductivity, pH, ORP, percent, pressure, milliamps, flow rates, or traced chemistry control. This transmitter

can be added in the field.

  • Designed with a single circuit board for better reliability and lower cost.
  • Large open shallow enclosure for easy wiring.
  • Ball valve delay feature allows accurate control of motorized ball valves.
  • Heavy-duty stainless steel domed numeric keypad and illuminated graphical display allow for quick and

easy programming. Steel domed switches improve the tactile sensing and life expectancy of the keypad.

  • LED indicators for power, alarm and relay status.
  • Easy to program with the Lakewood plain English, intuitive, and user friendly menu interface.
  • Controller can be used in boiler, cooling tower, or condensate applications when used with the appropriate conductivity sensor.
  • Single circuit board design improves reliability.
  • No add-on options. 4-20 mA output and feed schedule clock features are standard.

Conductivity range                              50-10,000 μS

Conductivity sensor                            2 electrode

Conductivity Resolution                      ± 10 μS (conductivity <5000 μS)

±100 μS(conductivity > 5000 μS)


Temperature comp.                            500NTC, NONE

Accuracy & repeatability                    ± 1.0%

Deadband/Setpoint                             Programmable

Auto/Manual outputs                           Menu selectable

Keypad 16 tactile push-buttons

Display illuminated                              128x64 pixel LCD

Drum Switch Inputs                            2 digital contact inputs

Water meter inputs (2)                        2 digital contact inputs. Contact head, paddle wheel, or turbine

Timers                                                 Max. blowdown time exceeded and relay run time exceeded

Output Signal                                      One 4 – 20 mA, isolated or non-isolated optionally powered output for conductivity

Input Signal                                         One 4-20 mA, non- isolated internally powered input for conductivity

Output                                                 Four (4) relays. 3 for selectable use, 1 for blowdown.

Relay ratings                                       3A each, 10A total

Power                                                  120/240 VAC 50/60 Hz

Ambient                                               32° - 120°F (0 - 49°C)

Enclosure                                            NEMA 4X, ETL


Sensors/Plumbing                            Cooling Tower

Max Pressure                                     140 psi (9.65 bar)@ 100 °F

Max Temp                              140°F (60°C)

Min flow                                  1 gpm (3.785 Lpm)


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