Model 1575 - Water Treatment Controller

The Model 1575 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. Water meters, sensors and plumbing assemblies are purchased separately.

• Use this Controller for Cooling towers, Chill loops, Boilers, and condensate systems.


• 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, flow switch input, and 4-20 mA output are all standard features.


• 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.

• Easy to program, the Model 1575 Controller menu is just like the Lakewood 2000 Series controllers.
• Controller can be removed from a cooling tower and be placed in another type of application when used with the appropriate conductivity sensor.
• Single circuit board design improves reliability.
• No add-on options. 4-20 mA output and biocide features are standard.

Model 2430 - Microprocessor-Based ORP & Conductivity Cooling Tower Controller

LONWORKS* Technology is the latest in microprocessor capability that gives the user the highest level of application flexibility. A large graphic screen, multiple inputs and very easy setup with easy field upgrades characterize this new technology.

• 4-electrode conductivity includes fouling compensation and alarm.
• Differential ORP sensor with diagnostics indicate fouled reference or open pt band.
• Integral flowsight & flow switch lockout.
• Records both makeup (MTR1) and blowdown (MTR2) water meter totals.
• Configure blowdown water meter (MTR2) as second makeup meter.
• Blowdown Relay options:
  - Bleed x gallons for every x gallons makeup
  - Bleed x minutes for every x gallons of makeup
  - Bleed by setpoint
  - Bleed by cycles of concentration with NCON/NCKT Option
  - Bleed by multi-setpoint selected with NCON/NCKT Option
• Three user-selectable relay options (four additional with NRLY):
  - Feed by setpoint, direct or reverse;
  - Water meter actuated feed. MTR1, MTR2 orsum;
  - Feed after blowdown by percent of bleed time;
  - Feed by percentage of time;
  - Schedule feed timer (-RTC Option);
  - General alarm contact.
• Three security levels:
  - View only
  - Operator
  - Technician
• Four different languages.
  - English Spanish (standard)
  - English French (optional)
  - English German (optional)

• Multiple control options in a single economical package.
• Very accurate control of chemical feed and cycles of concentration.
• Very low maintenance.
• Tolerant to power surges and brownouts.
• Power cord, plug outlets and attached plumbing make installation easy. There is plenty of protected room inside the enclosure for electrician wiring.
• Very accurate monitoring of the evaporated water.
• Feeds chemical AFTER blowdown.
• Has expansion slots to add additional control, such as chiller loop monitor and cycles of concentration based on incoming makeup water.

*LONWORKS is a registered trademark of Echelon Corporation.