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Table of Content

ASI Controls Building Automation System Operation & Maintenance Manual

Table of Content

Section 1 - Introduction - About ASI Controls Building Automation System (BAS) - System Description

Section 2 - Overall System Architecture

- Schedule of Equipment and Its Location - M&E Equipment Monitored and Controlled by BAS

Section 3 - Overview

- Step By Step System Guide

Section 4 - System Trouble shooting

Section 5 - Maintenance Procedure - Preventive Maintenance Service - Basic Preventive Maintenance - Corrective Maintenance - Employee Attachment Service - Periodic Maintenance Schedule Checklist

Section 6 - Product Catalogs

- ASI Weblink - ASI Monitor - ASI OPC Server - ASI Expert - ASIC/2-8540 - ASIC/2-7540 - Contrec Heat Calculator – Model 212 - Euromag Flowmeter MUT2200EL - Pressure Transmitter – Huba 501 - Temperature Sensor

Section 7 - Chilled Water Piping Schematic Layout Phase 1

- Chilled Water Piping Schematic Layout Phase 1 - Uniten DDC Schematic

Section 8 - I/O Point Schedule - Testing and Comissioning Check-List

Doc: O&M/Sec1/UNITEN/2010

Section 1

ASI Controls Building Monitoring System Page 1-1 Operation & Maintenance Manual

Content

INTRODUCTION ............................................................................................................................... 2

ABOUT ASI CONTROLS BUILDING AUTOMATION SYSTEM ...................................................... 2

SYSTEM DESCRIPTION .................................................................................................................. 3

FEATURES ....................................................................................................................................... 3 THE DIRECT DIGITAL CONTROLLERS (DDC) ...................................................................................... 3

ASIC/2-8540 ............................................................................................................................... 3 ASIC/2-7540 ............................................................................................................................... 4

THE ASI WEBLINK WEB USER INTERFACE SOFTWARE ....................................................................... 4 THE ASI EXPERT SOFTWARE ............................................................................................................ 4


Section 1


Introduction Thank you for choosing ASI Controls products as your

Building Automation System (BAS). The ASI Controls

product that you have selected is proudly manufactured in

Malaysia and designed in the USA. The system installed in

Chiller Plant University Tenaga Nasional building (UNITEN)

is based on the specification outlined by the Consultant

Engineers. The System provides full control and monitoring

for various applications in the building. The applications are

specifically design for the purpose of control and monitoring

of the Air Conditioning System.

About ASI Controls Building Automation System

ASI Controls, a USA based company has developed and

distributes a range of user configurable and pre-

programmed direct digital controllers (DDC) for a variety of

control applications. The ASI Controls range of DDC is

proudly manufactured in Malaysia and designed in the

USA. Originally, the controllers were limited to air

conditioning systems controls but today, ASI controllers are

applied to a various application which include refrigeration

systems, energy monitoring and demand control, traffic and

tunnel ventilation, monitoring of production line, and

telemetry to name a few.

ASI Controls does not provide system installation and

service but concentrate its sales effort via value added

reseller. In Malaysia, ASI Controls is represented by ASI

Solutions Sdn Bhd, which in turns working very closely with

other local main-contractor.

Other range of ASI Controls products includes, Direct Digital

Controllers, Field Devices and Sensors, and ASI OPC

Software. ASI Controls uses our own developed ASI

Weblink, as the front-end Web-based Graphical User

Interface. The system installed in UNITEN is highly scalable

where expansion of system does not require a huge cost of

investment in terms of additional workstation and software.


Section 1


System Description

The ASI Controls Building Automation System (BAS) is a

centralized monitoring and control system designed to

monitor and control the Mechanical and Electrical (M&E)

equipment installed Chiller Plant Uniten building. It provides

easy and user-friendly interface through the BAS Operator

Workstations located in the Control Room at Chiller Plant.

Features

The system provides functions to : monitor Water Temperature and Pressure, Equipment

Status, Trip, Mode, etc.,

control the M&E Equipment for Start/Stop, On/Off

Valve, etc.

alarm management and monitoring,

report and alarm printing.

The Direct Digital Controllers (DDC)

There are two (2) types of DDC used in this project. They are :

ASIC/2-8540

The ASIC/2-8540 controllers are fully configurable for

HVAC and similar process applications. Additionally,

they provide communication management functions

with two separate communication busses. Built-in

remote site management features, such as auto dial-

out option is available in the ASIC/2-8540. The real-

time clock in all ASIC/2 controllers provides true

stand-alone capability. Larger mechanical

equipment, control panels, or complete small facility

control are ideal applications. This type of DDC is

used for Controls and Monitoring function.


Section 1


ASIC/2-7540

The ASIC/2-7540 can operate as part of a larger

communicating control network with other ASI

controllers. Communication at speeds up to 19,200 baud

on both the system and local bus means rapid access to

information. Temperatures, setpoints, and other

controller information may be easily reported to ASI

WebLink, or any Windows based software that is a client

for OLE for Process Control (OPC). The controller has

separate RS-485 system and local buses. No central

system is needed to supervise the controller. Red and

green LEDs indicate the controller receive and transmit

communications.

The ASI Weblink Web User Interface Software

ASI provides True Web Based Graphical User

Interface to suit all types and sizes of application. For

large applications or those needing custom

requirements, ASI Weblink provides a complete web

user interface. ASI OPC Servers provide the capability

for countless other software packages to be used with

ASI Control systems.

The ASI Expert Software

ASI Expert is a software tool used to configure the full

range of ASI Controls products. It is a Windows based

point-and-click application that allows development,

management, and commissioning of the entire project.

The software is used during the implementation,

testing and commissioning stage and also for

troubleshooting of ASI controllers.


Section 2


Content

OVERALL SYSTEM ARCHITECTURE ............................................................................................ 2

SYSTEM ARCHITECTURE ................................................................................................................... 2

SCHEDULE OF EQUIPMENT AND ITS LOCATION ....................................................................... 3

M & E EQUIPMENT MONITORED AND CONTROLLED BY BAS ................................................. 4

CONTROL STRATEGY FOR CHILLER PLANT ......................................................................................... 4 - PHASE 1 ........................................................................................................................... 5 - PHASE 2 ........................................................................................................................... 6


Section 2


Overall System Architecture

This Section will describe the overall system architecture for

the ASI Controls Building Automation System installed in

Chiller Plant Universiti Tenaga Nasional (UNITEN).

System Architecture

One (1) Operator Workstations (OWS) is located in the

Control Room (at Chiller Plant) complete with MOXA. The

OWS is connected to the ASI DDC network via an Etherlink

(place at Chiller Plant Control Room) that provides the IP

interface to the RS-485 network protocol to the ASI DDC

network. All the DDCs are network to the system bus

connector.

Diagram 2.1 below shows the overall architecture of the

system installed.

Diagram 2-1


Section 2


Schedule of Equipment and Its Location

Below are the schedules of equipment supplied under this

contract.

NO. DECRIPTION AND LOCATION ADDRESS QTY DDC TYPE

1.0 Control Room

1.1 Etherlink (MOXA) 172.16.11.212 1

1.2 RS-485 Serial Connection Cable - 1

2.0 PHASE 1

2.1 Chiller 32001 1 ASIC/2 7540

2.2 Condenser and primary pump 32002 1 ASIC/2 7540

2.3 Tie and secondary pump 32003 1 ASIC/2 7540

2.4 Control Valve 32004 1 ASIC/2 8540

2.5 Thermal Energy Storage 32010 1 ASIC/2 8540

3.0 PHASE 2

3.1 Chiller 32006 1 ASIC/2 7540

3.2 Condenser and primary pump 32007 1 ASIC/2 7540

3.3 Tie and secondary pump 32007 1 ASIC/2 7540

4.4 Control Valve 32007 1 ASIC/2 7540

4.5 Thermal Energy Storage 32010 1 ASIC/1 8655


Section 2


M&E Equipment Monitored and Controlled By BAS

The main function of the BAS is to monitor and control the

M&E equipment installed in Chiller Plant Uniten. The BAS

provides easy access to the information of the activities for

all the M&E equipment installed. The Operator Workstations

(OWS) provide a graphical interface between Users and the

Systems.

The following table depicted all the equipment monitored

and controlled by the BAS

Item Equipment Monitored Points Controlled Points

1.

Chiller

- Status - Trip - BAS/Manual Mode - Return Water Temperature - Supply Water Temperature -

- Chiller Start/Stop -

2.

Condenser Pump

- Status - Trip

- VSD Pump Output - Pump Start/Stop

3.

Primary Pump

- Status - Trip

- Pump Start/Stop

4.

Tie Pump

- Status - Trip - BAS/Manual Mode

- Pump Start/Stop

5.

Secondary Pump

- Status - Trip - BAS/Manual Mode -

- Pump Start/Stop

Control Strategy for

Chiller Plant

The following points are monitored to achieve the control

strategy.

On-Off Status Monitoring (BI)

Pump Start-stop Control (BO)

Pump Trip Alarm (BI)

Return Water Temperature Reading (AI)

Supply Water Temperature Reading (AI)

Local/BAS switch status (BI)

Difference Pressure (AI)

British Thermal Unit Meter (BTU)

The Chiller System will operate for Charging and

Discharging schedule.

PHASE 1


Section 2


Mode Schedule Equipment Status

Charging

2100

to

0630

Valve 1,3,5 : OPEN

Valve 2,4,6 : CLOSE

Chiller : ON

Primary Pump: ON

Cooling Tower : ON

Condenser : ON

Tie Pump : ON

Sec Pump : OFF

Rest

1730

to

2130

Chiller : OFF

Primary Pump: OFF

Cooling Tower : OFF

Condenser : OFF

Tie Pump : ON

Sec Pump : ON

Charging

+

Discharging

0630

to

1730

Valve 1,3,5 : CLOSE

Valve 2,4,6 : OPEN

Chiller : ON

Primary Pump: ON

Cooling Tower : ON

Condenser : ON

Tie Pump : ON

Sec Pump : ON

The proposed system shall have the capability to execute

BAS On-Off. This is for time-schedule Start-Stop operation

remotely from the BAS control room.

.

PHASE 2


Section 2


Mode Schedule Equipment Status

Charging

2100

to

0700

Valve 1,3,5 : CLOSE

Valve 2,4,6 : OPEN

Chiller : ON

Primary Pump: ON

Cooling Tower : ON

Condenser : ON

Tie Pump : ON

Sec Pump : ON ( 1 units)

Discharging

0700

to

2100

Valve 1,3,5 : OPEN

Valve 2,4,6 : CLOSE

Chiller : OFF

Primary Pump: OFF

Cooling Tower : OFF

Condenser : OFF

Tie Pump : ON

Sec Pump : ON

Upon receiving the schedule on, the DDC would

automatically execute PID control loop strategy. It shall

measure PID calculation to maintain the desired delta

pressure (∆p) between supply and return header pipe by

control & modulate the variable speed drive (VSD) for tie

pump and secondary pump.


Section 3


Content

OVERVIEW ....................................................................................................................................... 2

STEP BY STEP SYSTEM GUIDE .................................................................................................... 2

HOW TO START ASI WEBLINK SYSTEM .............................................................................................. 2 GENERAL OPERATION ...................................................................................................................... 5 HOW TO OVERRIDE BINARY OUTPUT ................................................................................................. 6 HOW TO SETUP SCHEDULE .............................................................................................................. 7

Schedule for Chiller .................................................................................................................... 7 HOW TO SETUP HOLIDAY .................................................................................................................. 8 TRENDING GRAPH ............................................................................................................................ 9 REPORT GENERATION .................................................................................................................... 10


Section 3


Overview This Section will describe the flow of the ASI Weblink

Operator Workstation Graphical User Interface Software. It

also provides the step-by-step instruction on how to operate

the system.

Step by Step System Guide

This manual assist the Users to operate the system installed

in a step-by-step manner.

How to Start ASI Weblink System

Before launching the system, make sure the following

software component is active to enable the communication

between the software and the DDC. There are :

1) ASI Weblink Console

2) ASI OPC Server

The icon should appear on the bottom right hand corner as

follows :

Once this 2 Icon has been confirmed active, you can now

launch the ASI Weblink Web User Interface to the web

browser.

From the Window, click on the “USIM BAS Login Page” or

alternatively,


Section 3


Go to Start, Select ASI Weblink to launch the ASI Weblink

Login Page into the web browser.

The Login page will be displayed on the web-browser. Click

the “LOGIN” button to launch the ASI Weblink Authentication

page as below.


Section 3


Enter the authorized “Identity” and “Password” to launch the

Main Page. All the login activity will be stored in the User

Login Audit Trail with time stamp, date and IP address or

location of login.

Once the “Identity” and “Password” has been verified, the

following page will be displayed.


Section 3


The main page displays the button to access pages for

Phase 1, Phase 2 and schematic DDC within the system.

So now we will click at the ‘Phase 1’ button. The following

pages will appeared;

Each sub-pages (Phase 1 or 2) contain the button to

access pages for Chiller, Pump, Cooling Tower, Building

System, Administration and Digital power meter.

General Operation There are buttons and links provided on the display. You

should notice the following on the screen :

Previous Page Button

Next Page Button

Home Button

Trending Graph Button

Report Button

Event Button


Section 3


How to Override Binary Output

On normal circumstances, the system shall run in Auto

Mode according to the system schedule. Command can be

executed by overriding the Auto mode of the system.

Click on the “O/R” button and the following will popup.

You can override “ON” or “OFF” by clicking on the respective

button. The Override points must be clear later to enable the

Auto Control to take place. This can be done by selecting

the “O/R CLR” button.

Override Button


Section 3


How To Setup Schedule

Schedule for Charging and discharging

All system controlled by the BAS are run based on System

Schedule. There are two type of schedule in the system;

charging and discharging schedule.

Schedule for Charging and Discharging can be accessed

from the Main Menu, under the Administration Sub-Menu.

Click on the “Administration” button and the following will

popup.

Select the CHARGING or DISCHARGING SCHEDULE to

jump to the associated schedule.


Section 3


From the schedule above, slide the schedule bar to adjust it.

Alternatively, click on the respective schedule and adjust it

accordingly.

How to Setup Holiday

Holiday can be setup in advance for a year. Click on the

“Holiday Setup” from the Administration Button. The

following screen appears.

Click on the respective schedule and named it.

Then click OK and the Holiday Name will be stored in the

system. Then Click on the date. Enter the holiday date in the

format (MM/DD) then click OK. Enter the number of day(s).

Click OK. The holiday is setup. The system will now

automatically recognised days on holiday or non-holiday and

this will reflect the system schedule.


Section 3


Trending Graph

ASI Weblink provides the facility for points trending. The

trending can be defined online without the need to shut

down the system. All the points available for trending will be

listed. Click on the graph button as shown below.

The screen below will appear upon clicking on the above.

Select the points to be trend on the graph, then select the

date you want the data to be graph and time.

Trend Button


Section 3


Report Generation Reports can be generated as follows :

Click the button above to launch the report screen.

Tick the points that you want reports to be generated, select

the date and the report time span and step, then press

“Generate Report”. Data will be listed and can be saved or

exported into Microsoft Excell.csv format.

Report Button


Section 4


Content

SYSTEM TROUBLE-SHOOTING ..................................................................................................... 2

COMMUNICATION FAILURE ................................................................................................................ 2 SOFTWARE AND RS-232 CABLE ....................................................................................................... 2 CHECK THE SOFTWARE .................................................................................................................... 2 CHECK THE CABLE ........................................................................................................................... 2 COMMUNICATE WITH ASIC ............................................................................................................... 3 CHECK PICO-FUSES ......................................................................................................................... 3 RS-485 CHIP ................................................................................................................................... 3 FOR FURTHER ASSISTANCE .............................................................................................................. 4


Section 4


System Trouble-Shooting

This Section will describe how to trouble shoot the system in

case of faulty

Communication Failure Problems communicating with ASIC controllers can usually

be attributed to one (or more) of five areas:

Software not configured to use the correct serial port

Incorrect RS-232 cable attached to the serial port

Trouble with the RS-485 bus

Blown Pico-fuse

Blown RS-485 Chip

Software and RS-232

Cable

One way to test the software and cable is to connect the PC

to a SINC/3-3000 with a serial cable. It is not necessary to

connect the SINC/3-3000 to an ASIC controller for this test.

Start ASI Expert and click Find It. The Local LED should turn

off and the red Tx LED should blink as ASI Expert attempts

to find a controller. A straight-through serial cable is required

to connect the PC to the SINC/1-1030.

Check the Software You should first then check your software to make sure that

the software is set with the correct COM port, baud rate and

stop bits settings. These settings can be found by clicking

Options | System Options in ASI Expert. Typical settings are

COM1 or COM2, 9600 or 19200 baud, and 2 stop bits.

When directly connected to an ASIC controller, 2 stop bits

must always be used. The software generates a warning

message if another application is using the designated COM

port. The Multi-baud Enable box may be checked if baud

rate is not known. If the red Tx LED does blink, then the

software and serial cable are working correctly.

Check the Cable The RS-232 cable can be tested with a multi-meter by

testing for continuity (or resistance) between pin 2 at each

end of the cable. Check pin 2 for continuity If the multi-meter

shows that the pins are linked, then the cable should be fine.


Section 4


If the pins are not linked then you may have a NULL Modem

cable.

Communicate with

ASIC

To communicate with the ASIC controller connect the

SINC/1-1030 to the wall sensor of the ASIC controller. Make

sure that the end of the curly cable with the jumper is

plugged into the wall sensor. This jumper provides an

interlock to specifically identify the controller. In ASI Expert

Software Click on Options | System Options and check the

Multi-baud Enable and 2 Stop Bits boxes, if they are not

already checked. In the ASI Expert Find It dialog select

ASIC, then click Find It, leaving the address field blank. ASI

Expert will then search all baud rates for an ASIC controller.

The LED on the SINC/1-1030 will blink as it tries. If the

controller is not found at any baud rate, remove the RS-485

remote network connector, TB4, located below the wall

sensor connector and click Find It again. If the controller is

found with the connector removed, then either there is

another controller on the network that is causing the

problem, or there are problems with the network wiring.

Check Pico-fuses If the controller is still not found, then check the pico-fuses,

identified as R5 and R6 for continuity. They are located at

the edge of the board near the 24Vac power terminals.

Replace any blown fuse with a 1/8 amp fast blow pico-fuse

(ASI Part Number PFK-125). Another way to check the pico-

fuses is to disconnect the SINC/1-1030 from the wall sensor

, remove the RS-485 remote network connector, TB4, and

then measure DC voltage at the + and – communication

terminals, referenced to ground. If there is 0 VDC between

ground and +, then R5 is blown; 0 VDC between ground and

– indicates that R6 is blown.

RS-485 Chip If the pico-fuses are not damaged, then replace the RS-485

communications chip, identified as U2 above the wall sensor

connector, with one from a controller that is known to


Section 4


communicate properly. Be sure to turn off power to the

controller when removing or installing this chip. Also be sure

to install the chip at U2 correctly so that the circle identifying

pin 1 is in the upper left hand corner when the controller is

viewed with the transformer at the top. If replacing U2 fixes

the communication problem, contact ASI Controls for a

replacement chip.

For Further Assistance If you still are unable to communicate with the ASIC

controller after following the above instructions, contact ASI

Solutions Sdn Bhd at 603-5510 3885 for further assistance.


Section 5


Content

MAINTENANCE PROCEDURE ........................................................................................................ 2

PREVENTIVE MAINTENANCE SERVICE ....................................................................................... 2

PERFORMANCE CRITERIA ................................................................................................................. 2

BASIC PREVENTIVE MAINTENANCE ............................................................................................ 3

TASK 1 - REVIEW OF OPERATIONS .................................................................................................... 3 TASK 2 - CENTRAL EQUIPMENT MAINTENANCE .................................................................................. 4 TASK 3 - FIELD EQUIPMENT MAINTENANCE (DIGITAL CONTROLLERS) .................................................. 4 TASK 4 - VERIFY INPUTS AND OUTPUTS POINTS ................................................................................. 4

Critical Point Verification ............................................................................................................ 5 Database Protection ................................................................................................................... 5

CORRECTIVE MAINTENANCE ....................................................................................................... 5

PERFORMANCE CRITERIA ................................................................................................................. 5 SERVICE LEVEL 3 - NO REPAIRS INCLUDED ............................................................................. 6 SERVICE LEVEL 2 - MINIMUM REPAIR COVERAGE .................................................................... 6 SERVICE LEVEL 1 - COMPREHENSIVE REPAIR COVERAGE ........................................................ 7

EMPLOYEE ATTACHMENT SERVICE ............................................................................................ 7

PERFORMANCE CRITERIA ................................................................................................................. 7 ENGINEER ATTACHMENT SERVICE .................................................................................................... 8

PERIODIC MAINTENANCE SCHEDULE CHECKLIST ................................................................... 8


Section 5


Maintenance Procedure

This Section will describe ASI standard maintenance

procedure.

Preventive Maintenance Service

Performance Criteria Preventive maintenance are the equipment tasks to be

performed to prolong the life cycle of the BAS components

as well as the calibration procedures necessary to ensure

accurate readings and control response. Proper preventive

maintenance will extend the equipment component life and

reduce the costs associated with repair calls. ASI Controls

System hardware was designed to require less preventive

maintenance than our competitors’ systems. The major

problem areas with older generation systems were identified

and the solutions were designed and rectified into ASI

Controls System.

The periodic maintenance requirements of ASI Controls

System equipment are minimal. This is primarily due to

improvements in the product design. Most of other BAS

manufacturer uses Network Control Unit (NCU) that has a

complete set of BAS features for the connected DDC

Controllers and integrated subsystems. As the NCUs

provide essential functions for a large number of points

(about 1000 points), the DDC will be fully dependent on the

NCU. Upon failure of any NCU, the DDC process will be

halted and the system scheduling is no longer in functional.

ASI Controls System does not depending on the NCU as our

DDC are all equipped with the features that most of other

NCU performs. Some of the BAS manufacturers are

proposing a hot and standby system for an NCU. This will

force the building owner to spend more in order to have a

reliable system without single point of failure in the NCU. In


Section 5


current technology, the NCU shall be acting as a

communication manager only where it only gathers

information from the DDC and manages the system network.

Today's system is a system that can operate independently

and standalone and therefore do not require the hot and

standby system.

In addition, software supervises all system command

operations. Error messages are generated to alert the

operations staff whenever a manual request or an

automatically initiated request fails to perform as expected.

Advisory messages are also generated when

communication between various elements on the network is

interrupted for an extended period of time.

The Operator Workstations provide information management

for the system. The loss of an Operator Workstation will not

affect any of the BAS features of the system. In addition,

historical data is archived concurrently at multiple Operator

Workstations (if any) so that the failure of a hard disk does

not result in the loss of information. Our ASI Operator

Workstation is installed with the powerful ASI Weblink web

based GUI. The software act as the front-end web-user

interface and also as a communication manager.

Basic Preventive Maintenance

We propose quarterly scheduled service visits to the site.

Each visit will include:

Review of operations

Central Equipment Maintenance

Field Equipment Maintenance (each visit will cover 25%

of the field equipment)

Following this preventive maintenance strategy, operations

and central equipment is checked quarterly and field

equipment is checked annually.

Task 1 - Review of Operations

A scheduled service visit to the site will begin with a review


Section 5


of job site system event log and a discussion with the

system operators. A number of key summaries will be

printed. Within one week of the visit, the ASI service

representative will submit a report on the visit as a proof of

service. This report will include the following:

List of services performed on the central equipment with

results, if any

List of field equipment serviced and services performed

with results, if any

Copies of the summaries with comments.

List of concerns expressed by operations staff,

identifying person responsible and time frame for follow-

up

Task 2 - Central Equipment Maintenance

On each quarterly visit, the service representative will:

Scan hard disk for common “virus” programs

Check database, directory structure of hard disk

Check hard disk for lost chains

Optimize hard disk

Verify PC memory self-test and initialization processes

Listen for fan, floppy and Winchester drive motor or

bearing problems

Clean exterior surfaces

Task 3 - Field Equipment Maintenance (Digital Controllers)

Our experience is that the Digital Controllers require very

little servicing once they have been set up. The types of

tasks performed as part of preventive maintenance include:

Verify field power supply voltage

Check and record system DC isolation from chassis

ground

Change a setpoint and verify a change in the controlled

output

Clean exterior surfaces

Task 4 - Verify Inputs and Outputs Points

The trustworthiness of each point in the system is verified

once per year. For analog points, this means measuring the


Section 5


sensed variable and comparing the reading to the display on

the BAS. For binary points, this means actually simulating a

change of state on the equipment and verifying that the

message reports back to the BAS. It is not sufficient to

merely short the input at the controller, the actual field

condition being monitored must be simulated such as a trip

alarm or flow switch closure. Only in this way can problems

caused by people disabling input devices be detected.

Critical Point Verification

We recognize that there may be points or control loops,

which are critical to your operation. The reliability of these

points and loops must be verified by direct visual inspection

due to the serious impact their failure would have on your

operation. ASI will establish with the operations personnel

those points, which fall into this category and establish a test

plan for each point.

Database Protection We shall periodically back-up from your operator

workstations, the system database, any user-defined

software enhancements, trends and point history. Regular

database back-up are designed to significantly reduce

downtime in the event of hardware or software failure.

Corrective Maintenance

Performance Criteria The Corrective Maintenance Service is intended to minimize

the equipment downtime in the event of a failure. Depending

on the level of coverage selected, the customer will have

varying levels of protection against unbudgeted costs.

The customers has a choice of selecting one of three levels

of corrective maintenance as part of the service contract:

No Repair Included

Minimum Repair Coverage

Comprehensive Repair Coverage


Section 5


Irrespective of the level of corrective maintenance chosen,

ASI provides a defect liability period of twelve months.

During the defect liability period, there will be no charge for

any material replacements required due to normal wear and

tear on the system. The labour required to effect such

replacements will not be charged.

Service Level 3 - No Repairs Included

If this option is chosen, parts that require replacement and

are not covered by the defect liability clause will be charged.

Labour for work not covered by the defect liability clause will

be charged. Examples of parts and labour costs that are not

covered by the defect liability clause include costs

associated with fire, vandalism, water damage, tampering,

etc.

If this option is chosen, there is no guarantee of response

time and complaint calls, for which ASI is not responsible,

such as a switch being left in the hand position, will be

charged out. If this option is chosen, there is no guarantee

that repair parts will be kept locally.

Service Level 2 - Minimum Repair Coverage




be charged. If this option is chosen, a preferred labour

charge out rate for engineers is applied. After the defect

liability period, all parts and labour will be charged.

Examples of parts and labour costs that are not covered by

the defect liability clause are costs associated with fire,

vandalism, water damage, tampering, etc.

If this option is chosen, there is a guaranteed response time

of 4 hours. Complaint calls, for which ASI is not responsible,

such as a switch being left in the Hand position, will not be

charged out during normal office hours. Outside of office

hours, complaint calls will be charged out. If this option is


Section 5


chosen, there is no guarantee that repair parts will be kept

locally.

Service Level 1 - Comprehensive Repair Coverage




be charged. If this option is chosen, a preferred labour

charge out rate for engineers is applied. After the defect

liability period, parts and labour required due to fair wear and

tear will not be charged. Examples of parts and labour costs

which are not covered by the defect liability clause and are

not considered to be fair wear and tear are costs associated

with fire, vandalism, water damage, tampering, etc.

If this option is chosen, there is a guaranteed response time

of 2 hours. Complaint calls, for which ASI is not responsible,

such as a switch being left in the Hand position, will not be

charged out. ASI will guarantee that all required repair parts

manufactured by ASI will be stocked locally.

Employee Attachment Service

Performance Criteria Employee Attachment is designed to provide the following

benefits to the customer:

The customer’s engineers will understand ASI Controls

System capabilities before the software database is

generated. The engineers can then make suggestions

and provide input to ASI so that the system is designed

to meet operational requirements.

The customer’s technicians will be better equipped to

carry out daily functions, as they will have a better

understanding of the system operations.

To meet these two objectives, the following type of

employee attachments are available :

Engineer attachment service


Section 5


Engineer Attachment Service

This training takes place from the beginning of the system

configuration. The customer’s engineer will work closely with

the ASI application engineer. This provides an informal

interactive learning environment with practical “hands-on”

experience. An operator workstation with attached field gear

is set up in the branch to develop the system with the

customer’s engineer. The areas covered during this

attachment include:

ASI Controls System architecture

ASI Controls System capabilities and features

Hands-on system application

System design interaction

System expansion capabilities

During the attachment process, the ASI engineer will discuss

with the customer’s engineering the operational

requirements for the facility. Together they will design the

application of the features to best suit the requirements.

As the customer’s is involved with the design decisions for

the system, he will feel grater ownership, understanding and

involvement with the system. Familiarizing the engineer with

the system at this early stage will help him plan as to how

the facility operations will be affected by the system.

Periodic Maintenance Schedule Checklist

The following table shows the proposed maintenance

schedule and the checklist of task that is to be undertaken

during the visit.

Please note that the schedule visit will be made quarterly.

Task that has been identified to be service quarterly will be

done at every visit. At least 25% of those equipments that is

under annual service will be service during each of the visit.


Section 6


Content PRODUCT CATALOG

ASI WEBLINK ......................................................................................................................

ASI EXPERT ........................................................................................................................

ASI OPC SERVER ...............................................................................................................

ASIC/2 8540 .........................................................................................................................

ASIC/2 7540 .........................................................................................................................

CONTREC HEAT CALCULATOR – MODEL 212 ...............................................................

EUROMAG FLOWMETER MUT2200EL .............................................................................

PRESSURE TRANSMITTER – HUBA 501 ..........................................................................

TEMPERATURE SENSOR .................................................................................................................

ASI Controls ASI WebLink User Interface Software

DOC-1630 (2006-05-30) 2202 Camino Ramon, San Ramon, CA 94583 925 866-8808 http://www.asicontrols.com

ASI WebLink User Interface software enables web connectivity for any ASI Controls digital control system.

ASI WebLink displays live control system data and/or historical trend data in a web browser. The browser can be accessed over the Internet, through a LAN or WAN, or on the local PC. Depending on their access level, users can initiate overrides, change schedules, and otherwise control system behavior. WebLink enables real time remote monitoring and control from anywhere on a network.

The WebLink Editor makes building custom screens simple through drag and drop editing, OPC tag browsing, graphics manipulation capabilities, support for scripting and many other features. A built-in Web Server handles data updates using XML. WebLink connects to ASI Controls networks through the ASI LinkOPC Server and supports reads and writes on any network point.

WebLink supports common web graphic, audio and video formats, and includes a library of 3D animated HVAC graphics. Any element on a screen can be automated using JavaScript, giving developers flexibility and power to create functional, feature-rich screens for users. Tool bars, menus, colors and other skin elements can be customized. Graphics can be added, layered, and scripted. Video and audio clips can be embedded on screen.

ASI WebLink connects to all ASI products through the ASI LinkOPC Server. Active read/write data can be dragged onto the view by browsing the ASI OPC Server. Dynamic data is updated onscreen in real time, and WebLink supports writing data back to controllers. The ASI LinkOPC Server enables remote connections and does not need to be on the same machine as ASI WebLink.

Data trends can be created for any point on the system. Trended values can be displayed on any WebLink screen. WebLink saves trend data to disk, and provides an interface to report and/or graph the trend data at user-selected time intervals. Custom graphs can be displayed in your web browser, and templates

can be saved for later re-use. Reports data can be exported in CSV format.

ASI WebLink is designed for multiple remote access over LAN, WAN, or Internet. ASI WebLink makes it very easy to develop and deploy feature-rich, compelling and intuitive control system front ends. It requires Internet Explorer 4.0 or later. Setting up the web server requires only a few parameters - IP address, port number and idle timeout.

With logins secured by 160-bit SHA-1 encoding, plus optional support for HTTPS/SSL protocol, ASI WebLink enables secure, convenient access to your systems

ASI WebLink Features

• Web-enabled User Interface supports multiple remote users

• Integrated development environment using standard graphic, audio, video formats

• Simple interface for creating powerful, intuitive front ends

• OPC Client application, with OPC tag browser

• Reads ODBC data sources, exports CSV format data

• Includes HVAC graphics library

• Create reports, graphs using current or archived trend data

• Read/Write capability, with real time data updates

• Support for Internet security standards HTTPS/SSL, SHA-1

ASI Controls ASI WebLink User Interface Software


License WebLink is licensed both standalone and in a suite combined with ASI Monitor. The WebLink Suite features integrated alarm and event monitoring, with automated delivery of notifications to an individual or group of individuals via email, cell phone, fax (Windows XP Professional only), and/or alphanumeric pager.

WebLink requires a valid LinkOPC (ASI OPC Server) license. A 30-day trial version is available that supports one user connected locally on the PC running the WebLink web server for evaluation.

WebLink pricing is based on the number of simultaneous remote users who can connect. Licenses are available for up to 10 simultaneous remote users. You can upgrade a WebLink license at any time to include a larger number of simultaneous remote connections.

System Requirements ASI WebLink screens are viewable on a wide variety of platforms supporting the Internet Explorer browser. Development and deployment of WebLink is supported on the Windows 2000 Professional and Windows XP Professional platforms.

The ASI WebLink Server requires:

• Pentium-class Personal Computer (recommended minimum 500 MHz processor, 256MB RAM)

• Windows 2000 Professional or XP Professional • 25 MB free hard disk space

How to Order: Order Number ASI WebLink Software ASI WebLink

All software is supplied on CD-ROM or Web Download

ASI Controls ASI Visual Expert Configuration Software


ASI Visual Expert is the software for configuring ASI control systems. Visual Expert provides an integrated development environment for controller configuration, debugging and commissioning systems, setting-up control networks, documenting projects, and performing updates and maintenance.

ASI Visual Expert makes configuration simple. Users drag functional objects on screen, make connections between onscreen objects, then set each object’s properties. There is no line programming involved, and the real-time data display provides feedback so that sequences can be verified as they are being developed.

Configuration data stored at the controller level can be backed up in Visual Expert, simplifying swapping out a device or devices in an existing network. Configuration data can also be read directly from the controller, so that any Visual Expert user can remotely connect and monitor or reconfigure an existing system. Any instance of Visual Expert can upload configuration data from any connected controller and/or download data to any controller.

Visual Expert operates in either Online or Offline mode. In Online mode users can upload current data from any connected controller, modify configurations, and download configuration data to any connected controllers. In Offline mode users can view and modify only the configuration information stored locally on the computer running Visual Expert. Changes are downloaded to controllers when they are connected.

The software can connect to controllers directly over a wire or modem, or across Local or Wide Area Networks or the Internet - using either TCP/IP or UDP - so that system start-up and maintenance can be performed remotely from a convenient location. A hierarchical tree provides access to all controllers in the currently connected project, and to all controllers in all the projects archived on the local computer.

Users can create Function Groups to implement a common sequence or logical task. The Function Groups can be exported for re-use on other projects, increasing productivity while also ensuring consistency across projects. Some examples of Function Groups include Time of Day Scheduling, Economizer Sequence, Heating and Cooling Calculation, and Compressor Staging with minimum on and off times.

ASI Visual Expert is a simple, intuitive interface to configure ASI Controls systems, with a robust set of features designed to increase your productivity.

ASI Visual Expert Features

• Integrated Development Environment

• Drag and Drop Configuration with no Line Programming

• Real-time Data Display

• Supports Common Graphic Formats for User Screens

• Connects via TCP/IP, UDP, RS-232, or RS-485

• Modem Dialout Capability

• Integrates with ASI Monitor

• Export/Import Reusable Logic Sequences

ASI Controls ASI Visual Expert Configuration Software


ASI Expert comes with a self-installing one-time demo license valid for 30 days.

System Requirements ASI Expert software is a 32-bit application that includes features designed to work on personal computers with Pentium-class processors or better. The minimum system should have:

• Pentium-class processor • Windows 2000 Professional or Windows XP Professional • 256 MB RAM (512 MB or more recommended) • 100 MB free hard disk space • RS-232 serial port, or USB port with USB-to-serial converter

Software is available on CD-ROM or by download

How to Order: Order Number ASI Expert Configuration Software ASI Expert

Accessories: Order Number ASI OPC Server OPC ServerEtherLink/2 EtherLink/2

ASI Controls ASI LinkOPC Server OPC Data Server


ASI LinkOPC is an OPC Server software application. LinkOPC connects Windows-based applications to ASI Controls systems, and enables a wide range of third-party OPC enabled software and hardware products to interoperate and communicate with ASI Controls systems.

OPC is an open, vendor-neutral set of standards originally created by a number of leading industrial automation companies in collaboration with Microsoft. The OPC Data Access (OPC-DA) standards define the methods for exchanging real-time automation data among OPC Clients.

OPC-DA eliminates the need for vendor-specific drivers for each control system by defining a common, high performance data exchange interface layer that is open and accessible by HMI, SCADA, control, and custom applications.

ASI LinkOPC is compatible with both OPC-DA 1.0 and 2.0. It is optimized for data retrieval to ensure fast throughput. Built-in tag optimization minimizes the overall number of data transactions, reducing system traffic

ASI LinkOPC includes tag browsing to assist with rapid development of client applications. ASI points can be mapped to OPC tags and exposed to OPC Client applications by pointing and clicking in the OPC tag browser window.

Polling prioritization is a LinkOPC feature that allows the developer of the HMI client to update ASI control points at different intervals. This feature is useful when tuning the responsiveness of HMI screens displaying multiple points. Static data can be assigned a lower polling frequency to allow dynamic data to be updated at more frequent intervals.

LinkOPC can communicate with ASI devices through a serial port, modem connection, or over TCP/IP and UDP connections. LinkOPC can support simultaneous connections using any or all of the methods. The LinkOPC OPC Server can be located on the same computer as an OPC Client application, in which case communications will utilize Microsoft COM, or be on a different computer and communicate over a network using DCOM. LinkOPC can communicate with an ASI Controls system using a com port or via modem.

ASI controllers and control systems can also be connected to ASI LinkOPC via Ethernet TCP/IP networking using an ASI EtherLink/2 serial-to-Ethernet router. The LinkOPC server connects to the EtherLink/2 and transfers ASI message requests via TCP/IP. The LinkOPC server can connect with multiple EtherLink/2 devices simultaneously to efficiently monitor and control multiple remote sites in a single OPC Client front end such as ASI WebLink.

ASI LinkOPC Features

• Provides Interoperability

• Easy to Configure

• Communicates over Ethernet

• Integrates with ASI Visual Expert and WebLink

• Fast Response Times

• OPC Tag Browser

ASI Controls ASI LinkOPC Server OPC Data Server


System Requirements The minimum system on which ASI LinkOPC is to run should have:

• Pentium-class or better processor • Windows 2000 Professional or XP Professional • Mininum 128MB RAM (Win2000), 256MB RAM (WinXP),

at least 512MB is recommended • 100 MB free hard disk space • RJ-45 10BASE-T connector IEEE 802.3/Ethernet compliant • Modem, serial port, or Ethernet connection to communicate

with ASI Controls system

Software is available on CD-ROM or by download

How to Order: Order Number ASI OPC Server OPC Server

Accessories: Order Number ASI WebLink Software ASI WebLinkEtherLink/2 EtherLink/2

Software & Documentation: Order Number ASI OPC Server Manual ASI OPC

ASI Controls ASIC/2-8540 Configurable Unitary Controller

The ASIC/2-8540 is designed for energy management and control for a wide range of building systems including air handlers, chillers, cooling towers, pumps, lighting, etc. Applications range from control of small air handling units and roof top air conditioners in networked systems, to stand alone control of small buildings, such as branch banks, retail stores, and utility company sites. The ASIC/2-8540 configurable unitary controller has a switching power supply for AC operation, and flash and NVRAM memory for program and data storage.

ASIC/2-8540 Features

• 8 Universal Inputs

• 8 Relay Outputs, Form C

• 4 Analog Outputs, 0-10 Vdc

• Battery-backed hardware clock

• System bus for communication access

• Local bus for supervision of terminal controllers, or Modbus Master RTU

• Direct RS-232 communication user access.

• Optional Ethernet Adapter (future release)

• Compatible with ASI WebLink & ASI Data Server products

The controller is easily configured using Windows™ based ASI Visual Expert configuration software that links ready-made objects for scheduling, PID control, alarm notification, optimum start, trending, run-time accumulation, event logging, electrical demand management, and more. The ASIC/2-8540 has an on-board battery-backed calendar clock and allows special events, holidays, and schedules to be defined in advance. Configuration data is stored in non-volatile memory that is retained through power loss. Comprehensive product documentation is available.

In stand-alone applications a modem may be connected to allow dial-in from a remote location to review conditions and/or to modify schedules or setpoints. The controller can dial-out and send notify messages to a pager, printer, or computer running ASI Monitor software. An ASI EtherLink/2, or optional Ethernet Adapter card, ETH-8540 can enable the ASIC/2-8540 to receive and send information via an Ethernet network.

The ASIC/2-8540 can operate as part of a larger communicating control network with other ASI controllers at speeds up to 19,200 baud.. Controller information may be easily reported to ASI WebLink, or any Windows based software that is a client for OPC.

The controller has separate RS-485 system and local buses. The system bus is used to network multiple ASIC/2 controllers. The controllers may be polled or be configured for peer-to-peer communication using token passing. On a separate local bus the ASIC/2-8540 can poll ASIC/1 terminal controllers and

make control decisions based on the data received. No central system is needed to supervise the controller. Red and green LEDs indicate the controller system and local bus communications. Alternately the local bus supports Modbus Master RTU.


le input.

Eight on-board Form C 24 Vac relays are ideal for driving low voltage contactors and starters. The four 0-10 Vdc analog outputs capable of 20 mA are used for modulated actuators, electro-pneumatic transducers, variable speed drives and other analog signal devices. The 8 universal inputs may be used for counting pulses, direct reading of thermistors, reading 4 to 20 mA, 0 to 5 Vdc or 1 to 5 Vdc input signals, or multiplex reading of up to four dry contacts on a sing

ASI Controls ASIC/2-8540 Configurable Unitary Controller

DOC-1660 (2009-03-25) 2202 Camino Ramon, San Ramon, CA 94583 925 866-8808

ROUT3

NC NOOUT2

NC NOR

OUT1NC NO

OUT4NC NO

OUT7NC NO

OUT6NC NO

RROUT5

NC NOOUT8

NC NO

DS1

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TPU

TS

OU

TPU

TS

Rel

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elay

Rel

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elay

Rel

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elay

Rel

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elay

24 VacCOM 24Vac

D3

D2

L1

Q1

J1

U21 RTC

J8

PWR

DS2 DS3 DS4 DS5 DS6 DS7 DS8

+ SYSTEM c + LOCAL c

B1

1

28

DS10

DS9

DS24

DS25 DS23

DS22

U18U19 U17

U14PSD

J2

U26

TB1 TB2

J6

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27

DS21

ASSY 30071

ASIC

U20UART

RS-485232

RS-485LOCAL

3 2 1

LOCALSYSTEM

3 2 1

W3

W4

J7

RS-232

AO

4

AO

3

AO

2

AO

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CC

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U1380C196NT

IN8 IN7 IN6 IN5IN4 IN3 IN2 IN1INP

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Specifications

Control Power Supply Voltage: 24 Vac +/- 15%, 50/60 Hz Power Consumption: 17 VA (plus loads) Protection: 1.35 A Polyswitch & MOV

Relay Outputs 8 Type: Dry Contacts Form "C" 2 groups with common return Voltage rating: 24 Vac or Vdc, 1 A .

Analog Outputs 4 Type: 4 Analog 0-10Vdc Resolution: 0.4% full scale Current Rating: 20 mA at 9.4 V, 14 mA at 10Vdc Protection: TVS, 10 V,600 W peak

Universal Inputs 8 Type: Universal Analog/Binary Range: 0 to 5 Vdc, 0.1% full scale

http://www.asicontrols.com

Communications Format: RS-485,RS-232 DB-9 Baud Rate: Up to 19200 baud Protection: 100 mA Polyswitch fuse Maximum Length: 4000 ft (1.2 km) RS-485 with Repeater every 32 devices Ethernet: Optional EtherLink/2 or Optional Ethernet Adapter Alternate Local Bus Protocol: Modbus MasterRTU

UL-916 Listing Rated as a Class 2 device, Pilot Duty Meets CE requirements. Complies with FCC Part 15 (CISPR 22) Class A

Connections Power, Input & Output: 2-part screw terminals RS-485: 2-part screw terminals, 3 Position,

Other Memory: Firmware, 128 kbytes Flash Indication: Red LED, 1-Power, 8-Output Red LED 2-Receive, Green LED 2-Transmit Overall Dimensions: 5.5" x 9.2" x 2.0" (WxLxH) 140 mm x 234 mm x 51 mm with mounting holes on center 6.20" x 5.20" (157 mm x 132 mm ) Weight: 1.6 lb (0.7 kg)

Environmental Operating: 0 to 50 oC (32 to +122 oF), 10 to 95% rh non-condensing Storage: -37 to 80 oC (-35 to +180 oF), 5 to 95% rh non-condensing

How to Order: Order Number Configurable Controller ASIC/2-8540

Accessories: Order Number Ethernet Adapter Board ETH-8540

Four Input Multiplex Kit QUADMUX

Software and Documentation: Order Number ASI Expert Configuration Software ASI Expert

ASIC/2-8540 Installation Manual 8540 Manual

UL 916, Open Energy Management

E123287 ASIC/2-8540

ASI Controls ASIC/2-7540 Configurable System Controller


The ASIC/2-7540 is designed for energy management and control systems for a wide range of building systems including air handlers, chillers, cooling towers, pumps, lighting, etc. Applications range from autonomous control of retail stores, branch banks, and telephone company buildings to networked control of very large buildings. It has an isolated switching power supply for AC or DC operation and flash and NVRAM memory for program and data storage. The ASIC/2-7540 configurable unitary controller provides the same functionality and features as the ASIC/2-7040.

The controller is easily configured using Windows based ASI Visual Expert configuration software that links ready-made objects for scheduling, logic, PID control, alarming, optimum start, trending, run-time accumulation, event logging and electrical demand management. The ASIC/2-7540 has an on-board battery-backed calendar clock and allows special events, holidays, and schedules to be defined in advance. Configuration data is stored in non-volatile memory that is retained through power loss. Comprehensive product documentation is available on-line while using ASI Expert software.

A plug-in USB Connector slot enables remote communication via a LAN or WAN using an Ethernet USB Adapter; or via a telephone line using a USB Modem. Under selected event conditions the controller can send notify messages to a pager, printer, or computer running ASI Monitor software. Similarly, an ASI EtherLink can be attached to receive and send information via an Ethernet network.

The controller has separate RS-485 system and local buses. The system bus is used to network multiple ASIC/2 controllers. The controllers may be polled or be configured for peer-to-peer communication using token passing. On a separate local bus the ASIC/2-7540 can poll ASIC/1 terminal controllers and make control decisions based on the data received. No central system is needed to supervise the controller. Red and green LEDs indicate the controller receive and transmit communications. Alternately the local bus supports Modbus Master RTU.

The ASIC/2-7540 can operate as part of a larger communicating control network with other ASI controllers. Communication at speeds up to 19,200 baud on both the system and local bus means rapid access to information. This enables integrated control of the complete mechanical system to ensure optimum building performance. Temperatures, setpoints, and other controller information may be easily reported to ASI WebLink, or any Windows based software that is a client for OLE for Process Control (OPC).

The twelve 24 Vac relay outputs are ideal for driving contactors and starters. Four yellow LEDs may be configured to indicate specific alarm or other conditions. The eight analog outputs are used for modulated actuators, electronic-pneumatic transducers, variable speed drives and other analog signal devices. The 16 universal inputs may be used for counting pulses, for reading thermistors and contact closures directly, and for reading 4 to 20 mA, 0 to 5 Vdc or 1 to 5 Vdc input signals.

ASIC/2-7540 Features

• 16 Universal Inputs

• 12 Binary relay outputs

• 8 analog outputs.

• 10 Year hardware clock

• Switching Power Supply for AC or DC operation

• System bus for communication access

• Local bus for supervision of terminal controllers, or Modbus Master RTU

• Direct RS-232 communication user access

• Network Connectivity with EtherLink or USB Adapter.

• Compatible with ASI WebLink & ASI Data Server products

• USB Connector for expansion

ASI Controls ASIC/2-7540 Configurable System Controller


Features Analog Input Monitoring Binary Input Monitoring Maintained Outputs Pulsed Outputs Tristate Outputs Analog Outputs Scheduled Start/Stop Afterhour Override Calendar Events Special Day Schedules Multiple Control States Multiple PID Loop Counters and Timers Optional Demand Limit Conditional Logic Display and Keypad Cooling Tower Boiler Notify Alarm Configuration Value Trending Polling Communications Optional Token Passing Local Bus Polling Local Bus Broadcast Hardware Clock Brownout Protection Optional Modbus Master RTU Specifications Control Power Supply Voltage: 24 Vac +/- 15%, 50/60 Hz or -+/- 24 to 48 Vdc Power Consumption: 18 VA (plus loads) Protection: PS6, 0.75 A Polyswitch, MOV Binary Outputs 12 Type: Form "A" Relay SPST N.O. Dry Contacts Voltage Rating: 24 Vac or 24 Vdc Current Rating: 2A General Analog Outputs 8 Type: Analog 0-10Vdc Resolution: 0.4% full scale Current Rating: 20 mA at 10Vdc Protection: TVS, 10 V, 600W peak Aux Power Aux Power: 12V, 100 mA max Inputs 16 Type: Universal Analog/Binary Range: 0 to 5 Vdc Accuracy: 0.1% full scale Communications Format: RS-485 1/2 duplex RS-232 DB-9 Connector Protection: 100 mA Polyswitch Transient Protection: 500 mW-s TVS, 7 V BiPolar Maximum Length: 4000 ft (1.2 km) RS-485 Repeater: ASI Converter/Repeater every 32 devices System Bus Communication Address Range: 32,001 to 32,255 Maximum Size: Up to 255 devices with repeaters System Baud Rate: Up to 19,200 baud Local Bus Communication ASI Address Range: 1 to 32,000 Maximum Size: Up to 64 devices with repeaters Local Baud Rate: Up to 19,200 baud Second UART: TL16C450 Alternate Protocol: Modbus Master RTU

Connections Power: Molex 3 pin plug connector Input: 2 Molex 15 pin plug connector Binary Output: 2 Molex 12 pin plug connector Analog Output: Molex 15 pin receptacle connector Aux Power: Screw Terminals Communications: 2, 3 Position, screw terminals Mini-Molex 8 pin connector for DAK-002-E 9 position DE-9 female for RS-232 USB Other Memory: Firmware, 128 KBytes Flash Volatile, 30 KBytes RAM Non-volatile, 30 kbytes NVRAM Hardware Clock: Real Time Clock with 10 year Battery Backup Optional Ethernet: USB Ethernet Adapter (future) Optional Modem: USB Modem (future) Indication: 1 Red LED, Power 2 Red LED Receive, 2 Green LED Transmit 4 Amber LED programmable. 12 Red LED, Binary Outputs Overall Dimensions with base: 7.7" x 10.2" x 1.75" (WxLxH) 196 mm x 259 mm x 45 mm with mounting holes on center 7.2" x 7.2" (183 mm x 183 mm ) Weight: 3.22 lb (1.46 kg ) Environmental Operating: 0 to 40 oC (32 to 104 oF) 10 to 95% rh non-condensing Storage: -37 to 80 oC (-35 to +180 oF) 5 to 95% rh non-condensing UL Listing UL 916, Open Energy Management

E123287 11PK ASIC/2-7540

Rated as a Class 2 Device Includes MCK-003 Molex connector kit with wiring instructions Use provided connectors. Meets CE requirements. Complies with FCC Part 15 (CISPR 22) Class A

How to Order: Order Number Configurable Controller with enclosure ASIC/2-7540

Accessories: Order Number Four Input Multiplex Kit QUADMUX

Software & Documentation: Order Number ASI Expert Configuration Software ASI ExpertASIC/2 Object Definitions OBJ DEFASIC/2-7540 Users’ Manual 7540 Manual

Overview

The 212 Heat Calculator is designed tomeasure the energy consumed in hotwater heating systems and chilled watercooling systems.

The 212 is supplied complete with temperature probes and will interface with a wide range of flowmeters, includingpositive displacement and inferential water meters, magnetic flowmeters withpulse outputs, turbine and paddle wheelflowmeters.

Provides flexibility tomeet all applicationsThe 212 is able to cross internationalboundaries in heat meter applications.

Multilingual capability, datalogging andpeak/off-peak operation are standard. Inaddition, four modes of operation coveringheating and cooling ensure that the 212 is flexible enough to meet all energymeasurement applications.

The high accuracy of the 212 ensures thatit meets European and Internationalapprovals for heat calculators.

Accuracy to OIML R75Class 4 and EN1434The 212 can be supplied with two precision 4-wire Pt100 RTDs and hasinbuilt correction for the non-linearity ofthe RTDs. For chilled water measurementwhere the temperature difference (∆t) islikely to be small, provision is made in theset-up program to zero out any offsetbetween RTDs.

The 212 is fully programmable and all set-up data and totals are stored in a non-volatile memory for a minimum of 10 years.

Watertight wall or panelmount enclosureThe 212 Heat Calculator is housed in arugged yet attractive IP66 (Nema 4X) rated polycarbonate enclosure which iscompletely watertight.

Mounting is either by a wall bracket or bypanel mount.

Features• Complies with OIML R75

and EN1434 standards• Multilingual capability• Heating, cooling and

air conditioning• Built-in density and

enthalpy tables• Meter-bus interface and

RS485 communications• Metric or US units• 4-wire Pt100 RTD

temperature inputs• Fully programmable• Calculates and displays

Volume, Energy, Temperaturesand Peak Energy

• Watertight to IP66 (Nema 4X)• High accuracy• 4-20mA output option• CE Compliant

A c c u r a c y • Q u a l i t y • P e r f o r m a n c e

Heat CalculatorModel 212

Heat CalculatorModel 212

Integration with energymanagement systemsA Meter-bus interface enables the 212 HeatCalculator to be incorporated into energymanagement systems complying withEuropean IEC 870-5 protocol standards.

The 212 is also supplied with an RS485 bus,which uses industry standard Modbus RTUprotocol, for interfacing to computers andDCS systems.

Datalogging flexibility

The 212 Heat Calculator will store energytotals by hour, day, week or month for up to31 periods. The totals are stored for eachperiod and can be downloaded to a computervia the Meter-bus or RS485 communicationsports.

Peak and off-peak registers

If selected, the peak/off-peak feature willassign two separate registers which willtotalise peak energy and off-peak energy.

The changeover times between peak and off-peak are fully programmable.

4-20mA Output

A 4-20mA output option is available and canbe programmed to output flow rate, energyflow rate, feed or return temperature or ∆t.

Note that the high and low alarms are notavailable if the 4-20mA option is installed.

Modes of Operation

The 212 Heat Calculator is flexible enough tohandle a wide range of applications. Fouroperating modes are available.

❿ Heating Mode where positive ∆t’s only are totalised.

❿ Cooling Mode where negative ∆t’s onlyare totalised.

❿ Heating/Cooling Mode where the flow of energy may be for heating or cooling.In this mode the energy total is increasedregardless of whether ∆t is positive or negative.

❿ Charge/Discharge Mode where two separate registers totalise positive andnegative totals.

Calculates the density andenthalpy of water

The 212 Heat Calculator measures the temperature in the feed and return lines and, from this, calculates the density andenthalpy of the water.

By also measuring the volume of water flowing in the system, the 212 will then compute the energy consumed.

Power is calculated as:

P = V x p x (hTV - hTR)

where P = Power (W)V = Volumetric flow rate (m3/s)p = Density (kg/m3)hTV = Specific enthalpy (J/kg) at

Feed temperaturehTR = Specific enthalpy (J/kg) at

Return temperature

The volume, energy, temperatures and peak energy are all calculated and can bedisplayed on the large LCD.

General

DisplayType: 7 digit LCD - 7 numeric digits and 11 alpha characters.Digits: 15.5mm (0.6") high.Characters: 6mm (0.24") high.Display Units: kWh, MWh, MJ, GJ, therm, BTU x 1000, tons

x hours (refrigeration).Maximum Thermal Power: 3000MW.Measurement Time: 0.5s.Accuracy: OIML R75 Class 4 and EN1434.Approvals: Approved by Swiss Federal Office of Metrology

to OIML Class 4.Interference: CE Compliance.Power Requirements

dc Power: 12 to 24V dc @ 100mA maximum.ac Power: Supplied via power adaptor.

Physical

TemperatureOperating: 5 to 55°C.Storage: -20 to 70°C.

Environmental Class: EN1434 Classes A & C.

EnclosureProtection: IP66 (Nema 4X) watertight.Materials: Polycarbonate and ABS.

Mounting OptionsWall: Wall mount bracket.Panel: Mounting clips.

Inputs

FlowmeterType: Frequency or pulse between 0.01Hz to 20KHz.

Default low frequency cutoff is 0.25Hz.K-factor Range: Programmable in the range 0.001 to

999,999.9 pulses per litre, m3, US gallon or ft3.Signal Type: Pulse, open collector, reed switch, proximity switch

or coil.Location: In either the return or feed lines.

Inputs (con’d)

TemperatureType: 4-wire Pt100 RTD’s to IEC 751. 1/10 DIN.Location: 1 x Feed Line and 1 x Return Line.Linearisation: Built-in RTD linearisation.Temp Range: -10 to 220°C (1 to 200°C approved).Temp Difference: 1 to 200K (3 to 199K approved).Measurement Time: 3s.Cable Length: < 50m.Connection: G2B.

Outputs

PulseType: Open collector will sink up to 100mA, 30V dc maximum.Width: 10ms.Function: Volume or Energy (scaled).Frequency: 1 pulse every preset number of units of energy or

volume total.

Alarm (Not available with 4-20mA output)Type: Two solid state opto-isolated relays which will sink up to

100mA, 30V dc maximum.Function: High and low alarms individually programmable as

unsigned values for flow rate, energy flow rate, feed temperature, return temperature or temperature difference.

4-20mA Output OptionFunction: Volumetric flow rate, energy flow rate, feed or return

temperature, ∆t.Accuracy: 0.1%.Span: Programmable.Load: Maximum of 300 ohms at 12V.

Meter-BusType: Conforms to CEN/TC176 Meter-bus standard.Protocol: IEC 870-5.

RS485Data Transmitted: All data calculated can be transmitted.Baud Rate: 300 to 9600 baud.Parity: Odd, even or none.Stop Bits: One or two.Bus Address: Programmable for multiple instruments on the

same bus.Protocol: Modbus RTU.

Specifications

Important: Specifications are subject to change without notice.

<7mm ø

85, 120 or 210mm

Inlet for signalcable <9mm ø

G1/2B

Terminal Descriptions

Dimensional Diagrams Product Codes

212D

DS

- 05

/03

Typical Part Number: 212.20E1S

Contrec Pty. Ltd. 22 Hall Street, Hawthorn East

Melbourne 3123 AUSTRALIA

Tel: +61 3 9804 4200 Fax: +61 3 9822 8329

Email: [email protected]

Contrec Europe LimitedPO Box 436 Sowerby Bridge

West Yorkshire HX6 3YA, UK

Tel: +44 1422 829 940 Fax: +44 1422 829 941


Contrec - USA, LLC916 Belcher Drive, Pelham AL 35124 USA

Tel: (205) 685 3000 Fax: (205) 685 3001


a Delft Instruments company

Low temp RTD Current (+)

High temp RTD Input (-)

1 2 3 4 5 6 7 8

Low temp RTD Current (-)

High temp RTD Input (+)

High temp RTD Current (+)High temp RTD Current (-)

No.

High temp RTD Input (+)

High temp RTD Input (-)

RTD Connections

Coil Reference

9101112 1617

Flow Signal Common

Pulse Output (+)

Namur Switch (+)Flow Signal Input

No.

Pulse Output (-)

Flowmeter Signals

2425

5657

RS485 (+)

Meter-BusMeter-Bus

No.

RS485 (-)

5051

58 Shields

12V dc Supply (+)12V dc Supply (-)

No.52535455 Relay 1 (-) dc voltage only

4-20mA (+)4-20mA ( - )

Relay 0 (+) dc voltage onlyRelay 0 (-) dc voltage onlyRelay 1 (+) dc voltage only

No.

5253

No.

Communications Alarm Relays

4-20mA Output

Power Supply

Product Codes

212 • Heat Calculator

Enclosure 0 Wall Mounting (no gland holes)and Mounting 1 Panel Mount

2 Wall Mounting (Standard glands)

Output Option 0 No Option1 4-20mA

Power Option N DC PoweredE European Adaptor (220 Vac)U UK Adaptor (220 Vac)A USA Adaptor (100 Vac)H Australian Adaptor

Temperature Sensor No Probe8 85mm insertion1 120mm insertion2 210mm insertion

Approvals S OIML R75 CompliantNo Approvals

Panel Mount

Panel Mount BracketOption 1

Rear View

www.contrec.com.au

RTD Typical Configuration

43mm1.7"

87mm3.4"

Wall Mount

26mm1.0"

Wall Mount BracketOption 2

152mm(6.0”)

98mm(3.9”)

141mm(5.6”)

501

Huba ControlFEINE MESSIDEEN FÜR DRUCK UND STRÖMUNGFOR FINE PRESSURE AND FLOW MEASUREMENTLA FINESSE DES MESURES DE PRESSION ET DE DEBIT

Relative and absolute pressure transmitter

0 … 2.5 – 40 bar

Technical overview

The pressure transmitter of type series 501 with proven ceramic technology, features adjusted and amplified sensor signals which are available as standardised current outputs.

Various application specific pres sure and electrical connections can be provided.

MediumLiquids and neutral gases

Pressure rangeRelative 0 … 2.5 – 40 barAbsolute 0 … 2.5 – 16 bar

Tolerable overload2 x Measuring range (fs)

Rupture pressure 3 x Measuring range (fs)but as a maximum 90 bar

Materials in contact with the medium Pressure connection: Stainless steel 1.4305 / AISI 303Diaphragm: Ceramic Al

2O

3 (96%)

Sealing material: FPM, EPDM, NBR, MVQ

Case materialCover PA 6, colour red

TemperatureMedium and ambiance –15 … +80 °CStorage –40 … +80 °C

Output Power supply3-wire0 … 5 VDC 9 … 33 VDC1 … 6 VDC 10.4 … 33 VDC0 … 10 VDC 16.2 … 33 VDCRatiom. 10 … 90% 5 VDC (4.75 … 5.25)

2-wire4 … 20 mA 8 … 33 VDC4 … 20 mA 10 … 33 VDC

Load3-wire > 10 kOhm / < 100 nF

2-wire < supply voltage – 10 V

0.02 A

[Ohm]

Current consumptionAt nominal pressure3-wire0 … 5 V < 5 mA1 … 6 V < 5 mA0 … 10 V < 6 mARatiom. 10 … 90% < 3 mA

2-wire4 … 20 mA 20 mA

Dynamic response Suitable for static and dynamic measurements Response time < 5 msLoad cycle < 50 Hz

Electrical connection Cable 1.5 meters Connector DIN EN 175301-803-A Connector DIN EN 175301-803-C (mini DIN)

Polarity reversal protectionShort circuit proof and protected against polarity reversal. Each connection is protected against crossover up to max. supply voltage.

Protection standardIP 65

Pressure connection Inside thread G1/4Outside thread G1/4 DIN 3852 form EOther pressure connections on request

Installation arrangementUnrestrictedRecommended: Pressure connection downwards

Tests / AdmissionsCE conform

Weight Inside thread, connector DIN approx. 95 gOutside thread, connector DIN approx. 110 gWith cable 1.5 m, additional approx. 40 g

PackagingPlease state on order

Single packagingin cardboard

Multiple packagingin cardboard (25 pcs)

Legend to cross-section drawing

1 Pressure connection2 Seals3 Ceramic element4 Hybrid electronics5 Connector DIN EN 175301-803-A

The distinct advantages

• Compact construction

•Automated manufacture in large quantities for ideal price / performance ratio

•Robust ceramic sensor technology

•High resistance to extreme temperatures

•No mechanical creepage

501 / EDITION 07/2006, Technical data subject to change.

Relative pressure 9Absolute pressure 8 Pressure range 0 ... 2.5 bar 1 4 0 ... 4 bar 1 5 0 ... 6 bar 1 7 0 ... 10 bar 3 0 0 ... 16 bar 3 1 0 ... 25 bar 9 3 2 0 ... 40 bar 9 3 3 ▲ Fullscale signal at these pressures Sealing material 2) FPM Fluo ro-elastomer 0 EPDM Ethylene propylene 1 NBR Butadiene Acrylonitrile 2 MVQ Silicone polymer 3Adjustment Factory 0Output and power supply 0 … 5 V 9 … 33 VDC 3-wire cable 1 1 … 6 V 10.4 … 33 VDC 3-wire cable 6 0 … 10 V 16.2 … 33 VDC 3-wire cable 2 4 … 20 mA 10 … 33 VDC 2-wire cable 3 4 … 20 mA 8 … 33 VDC 2-wire cable 8 10 … 90% ratiom. 4.75 … 5.25 VDC 3-wire cable 4 Electrical connection Cable 1.5 m IP 65 0 Connector 3) DIN EN 175301803-A IP 65 1 Connector 3) DIN EN 175301803-C (mini DIN) IP 65 2 Pressure connection Inside thread G1/4 with O-ring sealing 1 Outside thread G1/4 sealed at back, DIN 3852 form E 4Pressure tip orifice Without 1 With 2Pressure range variation Indicate W and state range on order W

Order code selection table 501. X X X X X X X X X X

1) TC = Temperature coefficient 2) According to ISO standard R 1629, other sealing materials on request 3) Delivery without female connector, see accessories

Versions

A – Inside thread G1/4

B – Outside thread G1/4

C – Connector DIN EN 175301-803-A

D – Cable junction with PG7 screw

connection

Test conditions: 25 °C, 45% RH, Power supply 24 VDC TC z.p. / TC s. –15 … +80 °C

Tolerance zero point max. % fs ± 1.0Tolerance full scale max. % fs ± 1.0Resolution % fs 0.1

Total of linearity,

hysteresis and repeatability max. % fs ± 0.5Long term stability acc. to DIN IEC 60770 % fs ± 1.0TC zero point max. % fs/10 K ± 0.4TC sensitivity 1) typ. % fs/10 K – 0.15TC sensitivity 1) max. % fs/10 K – 0.3

Parameter

Accuracy

Unit

Order numberFemale connector DIN EN 175301-803-A with seal (IP 65, when installed and latched) 103510Female connector DIN EN 175301-803-C (mini DIN) with seal (IP 65, when installed and latched) 104244

Accessories

Storage versions

Output 4 … 20 mA Pressure ranges Order numberPower supply 10 … 33 V –1 … 0 bar 501.914023151W –1…0 barElectrical connection 3) Connector DIN EN 175301-803-A, IP 65 0 … 10 bar 501.930023151Pressure connection G1/4 sealed at back with manometer 0 … 25 bar 501.932023151Sealing material FPM Fluo ro-caoutchoucColour of cover Black


Dimensions in mm Electrical connections

CE conformity (EMC) by application of harmonized standards: Interference stability EN 61000-6-2 and EN 61326-1, Interference emit EN 6100063 and EN 61326-1

Interference stability Test standard EffectElectrostatic discharge (ESD) EN 61000-4-2 8 kV air, 6 kV contact no effectHigh-frequency electromagnetic radiation (HF) EN 61000-4-3 10 V/m, 80 … 1000 MHz no effect 3 V/m, 1 … 3 GHzConducted HF interference EN 61000-4-6 10 V, 0.15 ... 80 MHz no effectFast transients (burst) EN 61000-4-4 2 kV no effect Line-Line, Line-Case 500 V, 12 Ohm, 9 µF Surge EN 61000-4-5 1 kV, 42 Ohm, 0.5 µF no failure Line-Line 500 V, 2 Ohm, 18 µFMagnetic fields EN 61000-4-8 30 A/m, 50 Hz no effectInsulation voltage 500 VDC no effect 350 VAC

Interference emit Test standard EffectConducted interference EN 55022 (CISPR 22) 0.15 ... 30 MHz no emissionRadiation from housing 30 ... 1000 MHz, 10 m no emission

Electromagnetic compatibility


3-wire

brown

white

green

2-wire

brown

green

Female connectorDIN EN 175301-803-A

Female connectorDIN EN 175301-803-C

Inside thread G1/4

Connector version Cable version

Cable

SW19

3-wire 2-wire

SW19

SW19

Female connectorDIN EN 175301-803-A

Storage version

ASI Controls

DOC-1487 (06/14/01) 2202 Camino Ramon, San Ramon, CA 94583 925 866-8808 http://www.asicontrols.com

Product Specifications Output: 3,000 Ohms @ 77 oF (25 oC) Temperature Range: -40 to 100 oC -40 to 212 oF Interchangeability: 0.2 degrees C (0 to 70 oC) Dissipation Constant: 3 mW per degree Celsius Connections: flying leads.

The TS Series temperature sensors are thermistor type sensors. They may be used with the ASIC/1-8x55, and ASIC/2 products that include conversion tables for these. These sensors are a perfect complement to the WS-R and WS-0xx series. The TS Series temperature sensors are offered with options including: Duct Insertion, Immersion, Averaging, Strap-on, and Outside Air Temperature.

TS-D-x Duct Insertion temperature sensors with J-box where x is the length 4", 8", 12", or 18". Sensor is mounted through hole in duct and attached with mounting bracket.

TS-I-x Immersion temperature sensors (including 304 series stainless steel thermowell 1/2” NPT thread) where x is the length 4” or 8”.

TS-A-x Averaging temperature sensors where x is the length 8 ft, 12 ft, or 24ft. The sensor is inserted through hole in duct, and then strung in a fashion that covers the greatest surface area.

TS-S Strap-on temperature sensors includes junction box. Mounted on bottom side of pipe with 2”-5” pipe clamp.

TS-O Outside Air Temperature sensor in weatherproof enclosure with mounting hardware. Mount downward and out of direct sunlight.

TS SeriesTemperature Sensors

Temperature Sensors

TS Series Options

• Temperature via thermistor 3 kohm @ 77 oF (25 oC)

• Duct Insertion

• Immersion with Well

• Duct Averaging

• Strap-on

• Outside Air Temperature

• Flying leads for easy wiring

ASI Controls

925 866-8808 2202 Camino Ramon, San Ramon, CA 94583 DOC-1487 (06/14/01) http://www.asicontrols.com

Dimensions

TS-I-04, -08 IMMERSION WELL

1/2" NPT

1 1/8" HEX NUT

AUTOMATED TIG WELD

(CROSS SECTION)

1/2" NPT

Immersion sensor well.

WormGear

4.00

1.50

ArmaflexPad

PipeSt

TS-S, Strap-on sensor.

TS-O, Outside Air Sensor.

.175 DIA

0.75

X .600

4" X .25 DIASTAINLESS STEEL PROBE

3.900"

Duct/Immersion sensor shown without box.

1.50

4.00

4" X .25 DIASTAINLESS STEEL PROBE

2.00

Duct/Immersion sensor shown with box.

How to Order: Order Number Duct Insertion Temperature Sensor Length 4 inches Length 8 inches Length 12 inches Length 18 inches

TS-D-04 TS-D-08 TS-D-12 TS-D-18

ImmersionTemperature Sensor Length 4 inches Length 8 inches

TS-I-04 TS-I-08

AveragingTemperature Sensor Length 8 ft Length 12 ft Length 24 ft

TS-A-08TS-A-12 TS-A-24

Strap-On Temperature Sensor TS-S Outside Air Temperature TS-O

Temperature Sensors

TS Series


Section 7

ASI Controls Building Automation System Page 7-1 Operation & Maintenance Manual

Content

1. CHILLED WATER PIPING SCHEMATIC LAYOUT PHASE 1. .................................................... 1

2. CHILLED WATER PIPING SCHEMATIC LAYOUT PHASE 2. .................................................... 2

3. UNITEN DDC SCHEMATIC. ......................................................................................................... 3


Section 8

ASI Controls Building Automation System Page 8-1 Operation & Maintenance Manual

Content

I/O POINT SCHEDULE .......................................................................................................................

TESTING & COMMISSIONING CHECK-LIST ...................................................................................

DESCRIPTION QTY AI AO DI DO HLI DEVICES

PHASE 1

CHILLER 4

START/STOP 4 24 VAC RELAY

STATUS 4 VOLTAGE FREE CONTACT

TRIP 4 VOLTAGE FREE CONTACT

AUTO/MANUAL SELECTOR 4 VOLTAGE FREE CONTACT

SUPPLY WATER TEMP 4 WATER TEMP SENSOR

RETURN WATER TEMP 4 WATER TEMP SENSOR

3 PHASE VOLTAGE,CURRENT,POWER 30 DIGITAL POWER METER

COOLING TOWER 4

START/STOP 4 24 VAC RELAY 3 units for duty

STATUS 4 VOLTAGE FREE CONTACT 1 unit for standby




CONDENSOR WATER PUMP 5




PRIMARY CHILLER WATERPUMP 5




SECONDARY CHILLER WATERPUMP 5





VARIABLE SPEED DRIVE (VSD) 1 FREQUENCY INVERTER

TIE PUMP 3


STATUS 3 VOLTAGE FREE CONTACT 3rd pump for standby



PIPING HEADER SUPPLY WATER TEMP 1 WATER TEMP SENSOR

PIPING HEADER RETURN WATER TEMP 1 WATER TEMP SENSOR

HEADER WATER SUPPLY PRESSURE 1 WATER PRESSURE SENSOR

HEADER WATER RETURN PRESSURE 1 WATER PRESSURE SENSOR

WATER FLOWRATE READING 1 FLOWRATE SENSOR

BTU READING 1 BTU READING

CONTROL VALVE 6 6 24 VAC RELAY Control Valve for Charging

and Discharging Mode

For Incoming Power

REMARKS

I/O POINT FOR PROJECT UNITEN KAMPUS PUTRAJAYA

DESCRIPTION QTY AI AO DI DO HLI DEVICES REMARKS

PHASE 2

CHILLER

START/STOP 2 2 24 VAC RELAY



AUTO/MANUAL 2 VOLTAGE FREE CONTACT



3 PHASE VOLTAGE,CURRENT,POWER 15 DIGITAL POWER METER

COOLING TOWER

START/STOP 2 2 24 VAC RELAY





TIE PUMP 3

START/STOP 3 24 VAC RELAY



PRIMARY CHILLER WATERPUMP 3


STATUS 3 VOLTAGE FREE CONTACT 3rd pump for standby


For Incoming Power

SECONDARY CHILLER WATERPUMP 4


STATUS 4 VOLTAGE FREE CONTACT 1 units for standby

TRIP 4 VOLTAGE FREE CONTACT 1 units for night load

VARIABLE SPEED DRIVE (VSD) 1 1 FREQUENCY INVERTER

PIPING HEADER SUPPLY WATER TEMP 1 WATER TEMP SENSOR

PIPING HEADER RETURN WATER TEMP 1 WATER TEMP SENSOR

HEADER PRESSURE 2 WATER PRESSURE SENSOR

HEADER FLOWRATE 1 FLOWRATE SENSOR

WATER FLOWRATE READING 1 FLOWRATE SENSOR

BTU READING 1 BTU READING

CONTROL VALVE 6 6 24 VAC RELAY Control Valve for Charging

and Discharging Mode

28 2 98 54 54 236 TOTAL IO POINT

uniten manual operation for chiller plant

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