LMI Liquitron DC4500 Series Instruction Manual Download Page 26 | Manualshive

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27

ADD BIOCIDE

CONDUCTIVITY

SET POINT

LOW ALARM

HIGH ALARM

FEED

CLOCK

VIEW BIOCIDE

LOCKOUT

PREBLEED

MANUAL OUTPUT

ADVANCED SETUP

TEMPERATURE

H

2

O METER

∆

∆

∆

∆

∆

DIFFERENTIAL

3.12 Biocide Prebleed

The Biocide pump “PREBLEED” option is available in order to bleed
down the cooling tower to below conductivity limits prior to biocide
chemical addition. This option is pragrammable in one of two modes.
The prebleed may be selected for either a programmed amount of time
or a conductivity set point. If the time option is selected, then the
cooling tower will be bled down for that programmed amount of time
prior to the biocide pump “on” time. If the conductivity set point is
selected, then the cooling tower will be bled down to this set point
prior to the biocide chemical addition. This set point prebleed starts at
the programmed biocide pump “on” time. The biocide pump will
come on after this conductivity point has been reached.

BIOS

PREBLEED

BIOS

PREBLEED

BIOS

PREBLEED

BIOS

PREBLEED

BIOS

PREBLEED

Biocide Prebleed Screen

Biocide Prebleed Screen

Biocide Prebleed Screen

Biocide Prebleed Screen

Biocide Prebleed Screen

BIOS

PREBLEED

BIOS

PREBLEED

BIOS

PREBLEED

BIOS

PREBLEED

BIOS

PREBLEED

CONDUCTIVITY\

TIME

CONDUCTIVITY\

TIME

CONDUCTIVITY\

TIME

CONDUCTIVITY\

TIME

CONDUCTIVITY\

TIME

ÙÙÙÙÙ

BIOS PRE 3200

BIOS PRE 3200

BIOS PRE 3200

BIOS PRE 3200

BIOS PRE 3200

BIOS

PRE1

(M)

12

BIOS

PRE1

(M)

12

BIOS

PRE1

(M)

12

BIOS

PRE1

(M)

12

BIOS

PRE1

(M)

12

Ù

Ù

Ù

Ù

Ù

ÙÙÙÙÙ

BIOS

PRE2

(M)

09

BIOS

PRE2

(M)

09

BIOS

PRE2

(M)

09

BIOS

PRE2

(M)

09

BIOS

PRE2

(M)

09

Ù Ù Ù Ù Ù

Ù Ù Ù Ù Ù

Prebleed to 3200

Prebleed to 3200

Prebleed to 3200

Prebleed to 3200

Prebleed to 3200
µSiemens for

µSiemens for

µSiemens for

µSiemens for

µSiemens for
Bio 1 and Bio 2

Bio 1 and Bio 2

Bio 1 and Bio 2

Bio 1 and Bio 2

Bio 1 and Bio 2

12 minute

12 minute

12 minute

12 minute

12 minute
Prebleed

Prebleed

Prebleed

Prebleed

Prebleed
Bio 1

Bio 1

Bio 1

Bio 1

Bio 1

9 minute

9 minute

9 minute

9 minute

9 minute
Prebleed

Prebleed

Prebleed

Prebleed

Prebleed
Bio 2

Bio 2

Bio 2

Bio 2

Bio 2

ENTER

ENTER

ENTER

ENTER

ENTER

ENTER

(866) 433-6682 • (281) 359-8538 • [email protected] • www.novatech-usa.com

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Summary of Contents for Liquitron DC4500 Series

Page 1: ...r file reference please record the following data Model No Serial No Installation Date Installation Location When ordering replacement parts for your LMI Controller or accessory please include the com...

Page 2: ...20 3 8 Clock 21 3 9 View Biocide 22 3 10 Add Biocide 23 3 11 Biocide Lockout 24 3 12 Biocide Prebleed 25 3 13 Manual Outputs 26 3 14 Advanced Setup 27 3 15 Temperature 28 3 16 H2 O Meter 29 4 0 Start...

Page 3: ...LEEDS lockout timer limits maximum FEED time FEED time calculated as a percentage of total BLEED time FEED based on a timed cycle pump is on for a percentage of this timed cycle FEED based on flow met...

Page 4: ...LAY DISPLAY DISPLAY DISPLAY FLOW FLOW FLOW FLOW FLOW indicator lights when there is a loss of system flow Operates only if flow switch is installed BLEED BLEED BLEED BLEED BLEED indicator lights when...

Page 5: ...PE enclosure When ordered 115 VAC units come fully wired to include input power cord and relay output pigtails to allow for simple installation The unit can be hardwired through conduit to the lower j...

Page 6: ...sions When using the prewired unit the enclosure is configured as NEMA 12X If the unit is connected through watertight conduit the enclosure is configured as NEMA 4X The following clearances should be...

Page 7: ...rd and four 4 12 inch output pigtails for plug in connec tion of controlled devices A four pin connector is provided for the conductivity probe and temperature compensation probe The DC4500 controller...

Page 8: ...2 1 Neutral TB1 4 Ground TB4 4 Bleed Blowdown Control Relay Output Bleed Blowdown Control Relay Output Bleed Blowdown Control Relay Output Bleed Blowdown Control Relay Output Bleed Blowdown Control Re...

Page 9: ...put Flowmeter Input Flowmeter Input The inputs are reversible when the flowmeter connection is a relay and has no polarity TB10 1 TB10 2 Flow Switch Input Flow Switch Input Flow Switch Input Flow Swit...

Page 10: ...les that may cause electrical interference Signal Output TB11 1 Signal Return TB11 2 Conductivity Probe Hardwire Only Conductivity Probe Hardwire Only Conductivity Probe Hardwire Only Conductivity Pro...

Page 11: ...gure 5 Bottom of controller with cover open Figure 5 Bottom of controller with cover open Figure 5 Bottom of controller with cover open Figure 5 Bottom of controller with cover open 866 433 6682 281 3...

Page 12: ...4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 TB4 TB5 TB6 TB2 TB1 TB3 TB7 TB8 TB9 TB11 TBIO FUSE DC4500 TEST SWITCH AC POWER LINE N O LINE N C NEUTRAL SOLENOID VAL...

Page 13: ...4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 TB4 TB5 TB6 TB2 TB1 TB3 TB7 TB8 TB9 TB11 TBIO FUSE DC4500 ALARM INPUT POWER MAIN AC POWER VIO ORG GREY RED AC POWER LINE N O LINE N C NEUTRAL...

Page 14: ...in the test mode After reviewing or changing the conductivity controller programming setpoints the unit must be returned to the System Run or conductivity reading screen to allow automatic control to...

Page 15: ...w to another line item When not in the System Run mode the outputs to the control relays are disabled The following is the order of items in the main menu CONDUCTIVITY SET POINT DIFFERENTIAL LOW ALARM...

Page 16: ...3400 S 3400 S 3400 S 3400 S 3400 CAL CAL CAL CAL CAL S 1700 S 1700 S 1700 S 1700 S 1700 CALIBRATION LIMIT CALIBRATION LIMIT CALIBRATION LIMIT CALIBRATION LIMIT CALIBRATION LIMIT CONDUCTIVITY SET POIN...

Page 17: ...nd allows the value to be changed The value will have a flashing cursor indicating that it can be changed Press the UP or DOWN key to increase or decrease the value Press ENTER to save the value SET P...

Page 18: ...s screen to change the value The value will have a flashing cursor indicating that it can be changed Press the UP or DOWN key to increase or decrease the value Press ENTER to save the DIFFERENTIAL val...

Page 19: ...o save the value CONDUCTIVITY SET POINT LOW ALARM HIGH ALARM FEED CLOCK VIEW BIOCIDE ADD BIOCIDE LOCKOUT PREBLEED MANUAL OUTPUT ADVANCED SETUP TEMPERATURE H2 O METER DIFFERENTIAL LO ALARM LO ALARM LO...

Page 20: ...e the value CONDUCTIVITY SET POINT LOW ALARM HIGH ALARM FEED CLOCK VIEW BIOCIDE ADD BIOCIDE LOCKOUT PREBLEED MANUAL OUTPUT ADVANCED SETUP TEMPERATURE H2 O METER DIFFERENTIAL HI ALARM HI ALARM HI ALARM...

Page 21: ...above Use the UP or DOWN key to change the settings and press ENTER to save that setting CONDUCTIVITY SET POINT LOW ALARM HIGH ALARM FEED CLOCK VIEW BIOCIDE ADD BIOCIDE LOCKOUT PREBLEED MANUAL OUTPUT...

Page 22: ...ck is currently running in Again press the UP or DOWN key to change the value and ENTER to save The next screen displayed is the DAY screen Pressing the UP or DOWN key changes the setting and pressing...

Page 23: ...pump will run for 55 minutes Based on the above example biocide pump 1 is programmed to turn on at 3 00 pm for 55 minutes during week 4 on Monday VIEW BIOCIDE VIEW BIOCIDE VIEW BIOCIDE VIEW BIOCIDE V...

Page 24: ...CIDE LOCKOUT PREBLEED MANUAL OUTPUT ADVANCED SETUP TEMPERATURE H2 O METER DIFFERENTIAL BIOCIDE ADD BIOCIDE ADD BIOCIDE ADD BIOCIDE ADD BIOCIDE ADD BIOCIDE ADD BIOCIDE ADD BIOCIDE ADD BIOCIDE ADD BIOCI...

Page 25: ...T BIOS LOCKOUT BIOS LOCKOUT BIOS LOCKOUT BIOS LOCK 1 45 BIOS LOCK 1 45 BIOS LOCK 1 45 BIOS LOCK 1 45 BIOS LOCK 1 45 BIOS LOCK 2 12 BIOS LOCK 2 12 BIOS LOCK 2 12 BIOS LOCK 2 12 BIOS LOCK 2 12 Bleed wil...

Page 26: ...PREBLEED BIOS PREBLEED BIOS PREBLEED BIOS PREBLEED Biocide Prebleed Screen Biocide Prebleed Screen Biocide Prebleed Screen Biocide Prebleed Screen Biocide Prebleed Screen BIOS PREBLEED BIOS PREBLEED...

Page 27: ...s the MANUAL OUTPUT sub menu screens MANUAL OUTPUT MANUAL OUTPUT MANUAL OUTPUT MANUAL OUTPUT MANUAL OUTPUT ADD BIOCIDE CONDUCTIVITY SET POINT LOW ALARM HIGH ALARM FEED CLOCK VIEW BIOCIDE LOCKOUT PREBL...

Page 28: ...DEFAULTS ADD BIOCIDE CONDUCTIVITY SET POINT LOW ALARM HIGH ALARM FEED CLOCK VIEW BIOCIDE LOCKOUT PREBLEED MANUAL OUTPUT ADVANCED SETUP TEMPERATURE H2 O METER DIFFERENTIAL ADVANCED SETUP ADVANCED SETU...

Page 29: ...screen accesses this option change Pressing the UP or DOWN key toggles between displaying F or C Pressing ENTER a second time saves the displayed Tempera ture selection TEMP F 032 TEMP F 032 TEMP F 0...

Page 30: ...AL TOTAL 00000 GAL TOTAL 00000 GAL TOTAL 00000 GAL TOTAL 00000 GAL TOTAL 00000 GAL Use or key Use or key Use or key Use or key Use or key to to to to to select RATIO or RESET select RATIO or RESET sel...

Page 31: ...nd that the probe is fully emersed This prevents the electrode from becoming air bound System shut off isolation valves are recommended for installation on either side of the conductivity sensing elec...

Page 32: ...rcent of the total bleed blowdown time 4 LIMIT Chemical inhibitor feed at the same time as system bleed or blowdown The Feed pump can be controlled by either a powered relay output or by direct variab...

Page 33: ...eed Control mode supplies a low voltage signal to the pump for pump stroke rate control The terminal connections on the I O pc board for these modes are shown ON OFF ON OFF ON OFF ON OFF ON OFF VARIAB...

Page 34: ...Option Trip Actuation 4 20 mAmp settings Display Mode Pulse Output Pump Control and ControlCoolingTower Go to the CLOCK menu screen see CLOCK programming sheet in manual and enter the current day and...

Page 35: ...s conductivity is brought back to the desired setpoint This is done when the probe is installed on the drain line itself It allows for minimal piping installa tion The programmed settings for this met...

Page 36: ...board test switch to aid in troubleshooting the unit and system The switch is located under the access cover on the lower section of the controller see Figure 5 The conductivity test switch allows the...

Page 37: ...own in Figure 7 The probe should be cleaned parallel to the carbon electrodes NOT perpen dicular Frequency The probe should periodically be cleaned to maintain accurate measurements The frequency of c...

Page 38: ...ct wiring to valve Check wiring by using Relay Test program Valve has failed Test per manufacturers instructions Incorrect Blowdown setpoint Verify setpoint and rising falling trip selection Low Condu...

Page 39: ...Bleed 10 Feed after Bleed Limit 10 minutes Limit Feed Bleed 10 minute limit Flow Alarm On Off Off Trip Rise Fall Rise 4 mAmp setting 0 S 20 mAmp setting 20 000 S Display uS PPM TDS S Pump Pulse Feed...

Page 40: ...0 C to 100 C Temperature resolution 1 8 F 1 C Probe Input Probe Input Probe Input Probe Input Probe Input Cell constant of 1 5 ESD Protection 700 Volts Three 3 sample readings second display updated e...

Page 41: ...42 10 0 Product Exploded View 866 433 6682 281 359 8538 sales novatech usa com www novatech usa com...

Page 42: ...C4500 terminal cover 12 34074 Gasket foam 13 34088 Cover utility box 14 32094 Label 15 35378 Label DC4500 16 36526 Front panel assembly 17 31617 Cover Liquitron 18 30588 Label 19 32211 Cap 0 125 x 0 3...

Page 43: ...MI Milton Roy All Rights Reserved Printed in USA Specifications subject to change without notice sales novatech usa com www novatech usa com Tel 866 433 6682 Fax 866 433 6684 Tel 281 359 8538 Fax 281...

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