EVAPCO PulsePure Integrated Controller-2 Istruzioni per l'installazione e il funzionamento

E V A P C O

Integrated Controller

Evapco

Pulse~Pure® Integrated Controller-2

Instruction, Operation and

Installation Manual Addendum

EVAPCO, Inc. World Headquarters; PO Box 1300; Westminster, MD USA

Pulse~Pure® Integrated Controller Addendum Rev.2 TEL: 410-756-2600

TABLE OF CONTENTS

1.0

INTRODUCTION...........................................................................................................................................1

2.0 SPECIFICATIONS.........................................................................................................................................2

2.1

Measurement Performance...................................................................................................................2

2.2

Electrical: Input/Output..............................................................................................................................2

2.3

Mechanical............................................................................................................................................. 2

2.4

Variables and their Limits.......................................................................................................................3

3.0 INSTALLATION..................................................................................................................................................4

3.1

Installation..............................................................................................................................................4

3.2

Icon Definitions ......................................................................................................................................4

3.3

Typical Mounting....................................................................................................................................4

3.4

General Panel Layout............................................................................................................................6

3.5

Conductivity Probe, Flow Switch and Water Meter Connections............................................................7

3.6

Blowdown Valve and Timer Connections..............................................................................................8

4.0 FUNCTION OVERVIEW....................................................................................................................................9

4.1

Front Panel ............................................................................................................................................ 9

4.2

Display...................................................................................................................................................9

4.3

Touch Screen Display..........................................................................................................................10

4.3.1 Icons...................................................................................................................................................10

4.4

Password.............................................................................................................................................11

4.5

Startup .................................................................................................................................................11

4.6

Shut Down ........................................................................................................................................... 11

5.0 OPERATION................................................................................................................................................12

5.1

Main Menu...........................................................................................................................................12

5.2

Configuration........................................................................................................................................13

5.2.1 Global Settings…………………………………………………………………………………..…………...13

5.2.2 Security Settings……………………………………………………………………………………………...13

5.2.3 Display Settings……………………………………………………………………………………..………..14

5.2.4 File Utilities …………………………………………………………………………………………………...14

5.2.5 Controller Details……………………………………………………………………………………………..15

5.3

Inputs...................................................................................................................................................16

5.3.1 Conductivity…………………………………………………………………………………………………..16

5.3.2 Temperature.…………………………………………………………………………………………………16

5.3.3 Flow Switch…………………………………………………………………………………………………...17

5.3.4 Water Meters…………………………………………………………………………………………………17

5.3.5 Other Inputs…………………………………………………………………………………………………..17

5.4

Outputs ................................................................................................................................................17

5.4.1 Bleed…………………………………………………………………………………………………………..17

5.4.2 Biocide Timer and Alarm…………………………………………………………………………………….18

6.0 MAINTENANCE..............................................................................................................................................21

6.1

Sensor Cleaning ..................................................................................................................................21

6.2

Replacing Fuse………………………………………………………………………………………………..21

7.0 TROUBLESHOOTING................................................................................................................................22

7.1

Alarm/Error Messages.........................................................................................................................22

7.2

Procedure for Evaluation of Conductivity Probe..................................................................................24

1.0 INTRODUCTION

The Evapco Pulse~Pure Integrated Controller offers conductivity control of evaporative cooling water

integrated into Evapco’s patented water treatment system. This addendum should be used in

conjunction with Evapco’s standard Pulse~Pure® Installation, Operation,

and Maintenance Manual.

The Pulse~Pure Integrated Controller is microprocessor-driven with on/off control outputs. It is

supplied with a temperature compensated toroidal conductivity sensor and associated mounting

assembly for the sensor. Set points and operating parameters may be viewed without interrupting

control. Each set point change will take effect as soon as entered.

The Timer output is scheduled on a user selectable daily, weekly, two week or four week recurring

cycle. It may be

programmed for one cycle per day (in weekly, two week or four week cycle) or up to

10 times per day (in daily cycle). The Timer output is equipped with a pre-bleed and bleed lockout

feature.

All control outputs are interlocked with a flow input via the X-1 connector on the Pulse~Pure circuit

board. An alternative arrangement allows only the blowdown and timer relays to be interlocked with

flow while the Pulse~Purechamber is continuously energized.

Our unique USB feature provides the ability to:

Export Config file to a standard USB flash stick to save all controller set points and load settings

into another controller.

Download the last 2 months of data including, conductivity, temperature, water use (if

equipped with optional water meters), and Pulse~Pure status onto a standard USB flash disk.

2.0

SPECIFICATIONS

2.1 Measurement Performance

Conductivity Range

0 - 12,000 µS/cm (microSiemens/centimeter)

Conductivity Resolution

1 µS/cm

Conductivity Accuracy

500 - 12,000 µS/cm ±1% of reading

Temperature Range

32 - 158°F (0 - 70°C)

Temperature Resolution

0.1°F or oC

Temperature Accuracy

± 1% of reading

2.2 Electrical: Input/Output

Input Power

115 or 460 VAC 60 Hz

230 VAC 50 Hz (Europe)

Input Signals

Conductivity probe

Passive Electrodeless, RTD, PT1000 Temp. Element

Flow Switch (if equipped)

Isolated, dry contact closure required (i.e. relay, reed

switch)

Water Meter (optional)

Digital 0-10 Hz, 50 msec minimum width

Outputs

Mechanical Relays

Two - 6 Amp Total 115/230 VAC (resistive) fused

One mechanical relay assigned to blowdown valve

2.3 Mechanical

Enclosure Material

Stainless Steel

NEMA Rating

NEMA 4X

Dimensions

16” x 16” x 9”

Display

320 x 240 pixel monochrome backlit display

with touchscreen

Operating Ambient Temperature

32 –122°F (0 –50°C)

Storage Temperature

-20 –180°F (-29 –80°C)

Electrodeless Sensor Pressure Rating

140 psi (9.7 Bar)

2.4 Variables and their Limits

Low Limit

High Limit

Default

Conductivity Menu

Units

µS/cm, mS/m, S/m

µS/cm

Bleed Menu

Set Point

0 µS/cm

15,000 µS/

1000

Dead Band

Low end of range

High end of range

Water Meter Menus

Units

Gallons, Liters, Cubic Meters

Gallons

Gallons per Contact

1 gal/contact

500 gal/contact

100

Liters per Contact

1 L/contact

500 L/contact

Not set

Cubic Meters per contact

0.001 cu. meters/contact

1000 cu. meters/contact

Not set

Timer Menu

Pre-Bleed (0 disables pre-bleed)

1µS/cm

99 µS/cm

Lockout

0 minutes

9 hrs:59 min

Add Time

Mode

Daily, weekly, two-week, four-week

Not Set

Daily Adds

0 minutes

144 minutes

All other modes

0 minutes

1440 minutes

Time of Day (Military)

0:00:00

23:59:00

0:00

Password Menu

New Value

0000

9999

Not Set

3.0

INSTALLATION

3.1 Installation

Once the Pulse~Pure Integrated Controller panel is mounted, the blowdown valve may be located at any

distance from the controller. The conductivity probe should be placed as close to the panel as possible.

For field installed integrated controllers the probe and flow switch assembly must be located within 20

ft. of the integrated controller. Sufficient flow to the probe assembly should be ensured by piping supply

from the discharge side of

recirculating pump and return to either the basin or the suction side of

recirculating pump. Always route low voltage (sensor) signals with at least a 6” separation from AC

voltage wiring.

Locate the probe assembly where an active sample of cooling tower water is available. The probe and

flow switch (system dependent) must be located where they can easily be removed for cleaning and

inspection. They must be situated so that the assembly is always full of water when the tower is

operating. Refer to Figure 1 and Figure 2 for typical installations.

IMPORTANT: To avoid cracking the female pipe threads on the supplied plumbing parts, use no

more than 3 wraps of Teflon tape and thread in the pipe FINGER tight plus 1/2 turn! Do not use

pipe dope to seal the threads of the flow switch because the clear plastic will crack!

3.2 Icon Definitions

3.3 Typical Mounting

Mount the Pulse~Pure Integrated Controllerpanel so that the Chamber cable will reach the bottom

connector. It is advisable to mount the Pulse~Pure Purification Chamber before mounting the

panel to

ensure that the shielded cable reaches the bottom of the panel without stress. The panel

should be

mounted at a height and location that allows operators to fully open the panel door for routine

access. Locate the conductivity probe in side stream piping which supplies a representative portion of

evaporative cooling water and is within 20 feet of the panel. Install side stream piping with isolation

valves so that the probe and flow switch (system dependent) can

be easily removed for periodic cleaning

and inspection. See Figure 1 and Figure 2 for typical

mounting options. Contact your Evapco

representative for specific installation recommendations.

Symbol

Publication

Description

IEC 417, No.5019

Protective Conductor Terminal

IEC 417, No. 5007

On (Supply)

IEC 417, No. 5008

Off (Supply)

ISO 3864, No. B.3.6

Caution, risk of electric shock

IEC 3864, No. B.3.1

Caution

Figure 1 Typical Installation –Closed-Circuit Cooler or Condenser (self-draining sidestream)

Figure 2 Typical Installation –Single Tower

3.4 General Panel Layout

Figure 3 PPIC2 General Panel Layout

Figure 4 Interface Board Located on Left Side of Panel

Pre-wired Display Board

Pulse~Pure Board –X-1

Terminal is located here

DIN Rail to connect

blowdown valve and

timer

Interface Board –Connect

conductivity probe, flow switch

and water meters here

FLOW SW

H20 METER #1

H20 METER #2

Conductivity Probe connections

(Position #1 at top)

JP1 For Alternate Procedure

Move JP1 Jumper to center and

“COND ONLY” pins

If using alternate procedure

connect flow switch leads

to terminals shown.

Connect water meters to

terminals as shown.

3.5 Conductivity Probe, Flow Switch and Water Meter Connections

3.5.1 Conductivity Probe

The conductivity probe contains eight wires. Lace

conductivity probe wires through the

probe’s locking nut before wiring into panel. Bring wire into panel through supplied

waterproof strain-relief cord grip located on the bottom of Integrated Panel.

Connect wires to connector on Interface Board located on the left-hand side of panel door. Be

sure to connect the named, color-coded

wires to the proper connector. See door label or Figure

5for wiring sequence. From top of connector the sequence is:

Position

Wire Label

Wire Color

TEMP -

BLACK

TEMP+

GREEN

R-SHLD

CLEAR

NOT USED

RCV -

BLACK

RCV+

RED

X-SHLD

CLEAR

NOT USED

XMT+

BLACK

XMT-

WHITE

12 - 18

NOT USED FOR CONDUCTIVITY PROBE

Figure 5 Conductivity Probe Wiring Connections

3.5.2 Flow Switch (System Dependent)

In the preferred configuration, a secondary contact (dry) from the tower recirculating water

pump-starter is wired into the X1 connection on the main Pulse~Purecircuit board. (See the

Pulse~PureIOM for details of this connection). For an installation with multiple pumps where it

is impractical to connect the Pulse~PureIntegrated Controller Panel in this manner, the alternate

procedure should be used.

3.5.2.1 Alternate Procedure

A flow switch is used to control the conductivity-actuated blowdown-relay and

timer-relay while the Pulse~Pure Chamber operates continuously. Flow

switches require regular maintenance and may fail in the open (No Flow)

position. For the alternate procedure, jumper the X1 terminal on the Pulse~Pure

circuit board and move jumper JP-1 on the Interface Board from “PP +

COND” and center pins to center and “COND ONLY” pins. Connect a dry-

contact flow switch to the “FLOW SW” terminals on the Interface Board. See

Figure 4.

3.5.3 Water Meters (Optional)

Water meter totalizers are digital counters designed to operate with a contacting head water

meter. Two water meters can be connected to the Pulse~Pure® Integrated Controller. See

Figure 4.

3.6 Blowdown Valve and Timer Connections

The Pulse~Pure Integrated Controller allows 5 Amps of current for incoming power of

120V, 230V or 460V for operatingaconductivity-actuated blowdown valve and timer-

actuated device.

Make all connections to the DIN rail located inside the Pulse~Pure Panel at the bottom.

Feed wires from the devices through waterproof stress-relief cord

grips provided.

Connect the HOT lead from blowdown valve to the BLDN

terminal and NEUTRAL to #2

terminal. Connect the HOT lead from a timer-actuated device, to the TMR terminal and

NEUTRAL wire to #2 terminal. See Figure 6.

Figure 6 DIN Rail Connections for Blowdown

Valve and Timer-Actuated Device

Connect HOT lead from Timer-

Actuated Device to TMR terminal.

Connect HOT lead from Blowdown

Valve to BLDN terminal.

Connect NEUTRAL leads

from Blowdown Valve and

Timer-Actuated Device to

#2 terminals.

Indice

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