INQU 5025

Implementation Specifications

Scope of Work

RUM Inc. is a pharmaceutical company that

wants to implement a potable water system to

provide potable water to three buildings. The

potable water system will use well water from

an existing well and city water as a back up

source.

Implementation Specifications

Scope of Work

Engineering services are required to provide

the following:

Configuration logic flow chart (SAMA Drawings)

Pipe and Instrumentation Diagram

Input and Output List

Input and Output cards requirements

Implementation Specifications

Scope of work

Equipment available

Potable water tank (steam jacket is available at the

tank)

Potable water pumps (2)

Piping

Concentrated chlorine tank.

Implementation Specifications

User A

User B

User C

Potable Water Tank

Concentrated Chlorine

Chlorine injection pump

Pump 1

Pump 2

Well

Pump

City

Water

Base Pipe & Instruments Drawing

Implementation Specifications

Instrumentation available Discrete valves ( 24 Vdc coil)

Analog valves ( 4 to 20 mA)

Flow transmitters (4 to 20 mA) including a flow

element.

Turbidity meters ( 4 to 20 mA)

Level transmitter (4 to 20 mA)

Implementation Specifications

Instrumentation available Temperature transmitters (4 to 20 mA) including

temperature element

Pressure transmitter ( 4 to 20 mA)

Flow switch high ( dry contact)

Differential pressure switches (dry contact)

Chlorine injection pump, variable speed ( 4 to 20 mA)

Implementation Specifications

Instrumentation available Magnetic starters for pump with the following

specifications:

Coil voltage 120Vac

Auxiliary contact ( dry contact)

Auto status feedback ( dry contact)

Control Specifications

The tank level will be kept primarily by using well

water from an existing well. The tank level

should be kept between 65% and 85% when the

well water is in use.

SAMA Drawing

H/A

Set = 85%

L/A

Set = 65%

WELL STOPLT-01

WELL START

Stop

Start

Interlock

Status FB

Auto FB

Output

Fail

Motor

WELL START

WELL STOP

WE-1

S/S

WE-1

STA

WE-1

AU

Pipe & Instrument Diagram

User A

User B

User C

Potable Water Tank

Concentrated Chlorine

Chlorine injection pump

Pump 1

Pump 2

Well

Pump

City

Water

LT-01AI

WE-1

S/S

DO

WE-1

AU

DI

WE-1

STA

DI

Control Specifications

There is a pre established limit of 30,000 gallons of

maximum extraction of well water per day. The system

should be capable of monitoring the total water extracted

per day and should be capable of avoiding to exceed the

maximum extraction limit.

SAMA Drawing

Totalizer

Set = 30,000 GPM

FT-01 LIMIT ACHIEVED

Clock

Set time= 23:59

Reset

Flow InStop

Start

Interlock

Status FB

Auto FB

Output

Fail

Motor

WELL START

WELL STOP

WE-1

S/S

WE-1

STA

WE-1

AU

LIMIT ACHIEVED

Pipe & Instrument Diagram

User A

User B

User C

Potable Water Tank

Concentrated Chlorine

Chlorine injection pump

Pump 1

Pump 2

Well

Pump

City

Water

LT-01AI

WE-1

S/S

DO

WE-1

AU

DI

WE-1

STA

DI

FT-01AI

Control Specifications

The potable water system will use city water as

the alternate feed water source when well water

extraction limits is achieved. Tank level should

be kept between 30% and 50% when the city

water is in use.

SAMA Drawing

H/A

Set = 50%

L/A

Set = 30%

CITY CLOSELT-01

CITY OPEN

Close

Open

Interlock

Open Conf.

Close Conf.

In 3

In 4

In 5

Output

Fail Out 2

Valve

CITY OPEN

CITY CLOSE

LCV-

01

Pipe & Instrument Diagram

Control Specifications

If well is on and no flow is detected within 2

minutes on the make up water line a visible

alarm should be activated.

SAMA Drawing

WE-1

STA

FT-01

Timer

ON Delay

Set = 2 min.AND

WELL ALARM

L/A

Set = 5 GPM

OR

In 2

WELL ALARM

SL-01

Pipe & Instrument Diagram

Concentrated Chlorine

User A

User B

User C

Potable Water Tank

Chlorine injection pump

Pump 1

Pump 2

Well

Pump

City

Water

LT-01AI

WE-1

S/S

DO

WE-1

AU

DI

WE-1

STA

DI

FT-01AI

FCV-

01

DO

SL-01

DO

Strobe

LCV

-01

XStrobeSL-01

DO

Control Specifications

Water entering the tank should be monitored for

turbidity.

On the event of a high turbidity the system should

divert the make up water to drain and keep the

turbidity monitoring. If situation is solved then the

make up could be established.

If high turbidity parameter remains high for more than

10 minutes a visible alarm should be generated.

SAMA Drawing

H/A

Set = 20%

L/A

Set = 5%

TO DRAINAT-01

TO TANK

Close

Open

Interlock

Open Conf.

Close Conf.

In 3

In 4

In 5

Output

Fail Out 2

Valve

TO TANK

TO DRAIN

FCV-

01 Close

Open

Interlock

Open Conf.

Close Conf.

In 3

In 4

In 5

Output

Fail Out 2

Valve

TO DRAIN

TO TANK

FCV-

02

SAMA Drawing

H/A

Set = 20%

TURBIDITY ALM.AT-01Timer

ON Delay

Set = 10 min.

OR

WELL ALARM

SL-01

TURBIDITY ALM.

Pipe & Instrument Diagram

XStrobeSL-01

DO

Control Specifications

Potable water distribution will be implemented by a pump pair sequence having pump 1 as the lead pump and pump 2 as the stand by pump.

The lead pump will be always on and the stand by pump will operate based on high demand of the three users of in the event of a failure of the lead pump.

This high demand will be determined based on distribution header pressure. If the header pressure goes under 25 psig the lag pumps should be started.

If the header pressure returns to a normal pressure of 50 pumps the lag pumps should be turned off.

SAMA Drawings

H/A

Set = 50 PSIG

L/A

Set = 25 PSIG

DEMAND OKPT-01

HIGH DEMAND

Stop

Start

Interlock

Status FB

Auto FB

In 3

Output

Fail

Motor

PU-1

S/S

1

PU-1 FAIL

PU-1

STA

PU-1

AU

Stop

Start

Interlock

Status FB

Auto FB

In 3

Output

Fail

Motor

PU-2

S/S

PU-2

STA

PU-2

AU

DEMAND OK

OR

PU-1 FAIL

HIGH DEMAND

Pipe & Instrument Diagram

Concentrated Chlorine

User A

User B

User C

Potable Water Tank

Chlorine injection pump

Pump 1

Pump 2

Well

Pump

City

Water

LT-01AI

WE-1

S/S

DO

WE-1

AU

DI

WE-1

STA

DI

FT-01AI

LCV-

01

DO

SL-01

DO

Strobe

AT-01

AI

FCV-

01

DO

Drain

FCV-

02

DO

PU-2

S/S

DO

PU-2

AU

DI

PU-2

STA

DI

PU-1

S/S

DO

PU-1

AU

DI

PU-1

STA

DI

PT-01

AI

XStrobeSL-01

DO

Control Specifications

Off line pump should be isolated by keeping an

individual pump discharge valve closed when

pump is off.

SAMA Drawings

Stop

Start

Interlock

Status FB

Auto FB

In 3

Output

Fail

Motor

PU-1

S/S

1

PU-1 FAIL

PU-1

STA

PU-1

AU

FCV-

03

Stop

Start

Interlock

Status FB

Auto FB

In 3

Output

Fail

Motor

PU-2

S/S

PU-2

STA

PU-2

AU

DEMAND OK

OR

PU-1 FAIL

HIGH DEMAND

FCV-

04

Pipe & Instrument DiagramConcentrated Chlorine

User A

User B

User C

Potable Water Tank

Chlorine injection pump

Pump 1

Pump 2

Well

Pump

City

Water

LT-01AI

WE-1

S/S

DO

WE-1

AU

DI

WE-1

STA

DI

FT-01AI

LCV-

01

DO

SL-01

DO

Strobe

AT-01

AI

FCV-

01

DO

Drain

FCV-

02

DO

PU-2

S/S

DO

PU-2

AU

DI

PU-2

STA

DI

PU-1

S/S

DO

PU-1

AU

DI

PU-1

STA

DI

PT-01

AI

FCV-

03

DO

FCV-

04

DO

XStrobeSL-01

DO

Control Specifications

As the well water is not chlorinated, a chlorine injection control loop should be provided monitoring the total free chlorine a recirculation line available from the distribution pump discharge to the tank level and keeping this parameter at a set point of 2 PPM.

Concentrated chlorine should be injected on this recirculation line using a variable speed injection pump.

The chlorine parameter should be monitored and alarmed for high and low alarms. If the chlorine parameter is over a high high or a low low predetermined set points the system should shut down the potable water distribution pumps and an a visible alarm should be generated.

SAMA DrawingsAT-02

PID

SC-01

AT-02 HH/A

Set = 2.5 PPM

LL/A

Set = 0.5 PPM

HIGH CHLORINE

LOW CHLORINE

OR

HIGH CHLORINE

LOW CHLORINE

PUMP

SHUTDOWN

CHLORINE

ALARM

OR

WELL ALARM

SL-01TURBIDITY ALM.

CHLORINE

ALARMSL-02

SAMA Drawings

Stop

Start

Interlock

Status FB

Auto FB

Output

Fail

Motor

PU-1

S/S

1

PU-1 FAIL

PU-1

STA

PU-1

AU

FCV-

03

PUMP

SHUTDOWN

Stop

Start

Interlock

Status FB

Auto FB

Output

Fail

Motor

PU-2

S/S

PU-2

STA

PU-2

AU

DEMAND OK

OR

PU-1 FAIL

HIGH DEMAND

FCV-

04

PUMP

SHUTDOWN

Pipe & Instrument DiagramConcentrated Chlorine

User A

User B

User C

Potable Water Tank

Chlorine injection pump

Pump 1

Pump 2

Well

Pump

City

Water

LT-01AI

WE-1

S/S

DO

WE-1

AU

DI

WE-1

STA

DI

FT-01AI

LCV-

01

DO

SL-01

DO

Strobe

AT-01

AI

FCV-

01

DO

Drain FCV-

02

DO

PU-2

S/S

DO

PU-2

AU

DI

PU-2

STA

DI

PU-1

S/S

DO

PU-1

AU

DI

PU-1

STA

DI

PT-01

AI

FCV-

03

DO

FCV-

04

DO

AT-02AI

SC-01

AO

SL

-02

XStrobeSL-01

DO

Control Specifications

Concentrated chlorine is kept on a small

tank and low level condition of this tank

should be monitored and alarmed. A

visible alarm should be generated if the

concentrated chlorine is at low level

condition.

SAMA Drawings

OR

WELL ALARM

SL-01TURBIDITY ALM.

CHLORINE

ALARM

LSL-

01SL-03

Concentrated Chlorine

User A

User B

User C

Potable Water Tank

Chlorine injection pump

Pump 1

Pump 2

Well

Pump

City

Water

LT-01AI

WE-1

S/S

DO

WE-1

AU

DI

WE-1

STA

DI

FT-01AI

LCV-

01

DO

SL-01

DO

Strobe

AT-01

AI

FCV-

01

DO

Drain

FCV-

02

DO

PU-2

S/S

DO

PU-2

AU

DI

PU-2

STA

DI

PU-1

S/S

DO

PU-1

AU

DI

PU-1

STA

DI

PT-01

AI

FCV-

03

DO

FCV-

04

DO

AT-02AI

SC-01

AO

FSH-

01DI

LSL-

01DI

Pipe & Instrument Diagram

SL

-02

SL

-03

XStrobeSL-01

DO

Pipe & Instrument DiagramConcentrated Chlorine

User A

User B

User C

Potable Water Tank

Chlorine injection pump

Pump 1

Pump 2

Well

Pump

City

Water

LT-01AI

WE-1

S/S

DO

WE-1

AU

DI

WE-1

STA

DI

FT-01AI

LCV-

01

DO

SL-01

DO

Strobe

AT-01

AI

FCV-

01

DO

Drain

FCV-

02

DO

PU-2

S/S

DO

PU-2

AU

DI

PU-2

STA

DI

PU-1

S/S

DO

PU-1

AU

DI

PU-1

STA

DI

PT-01

AI

FCV-

03

DO

FCV-

04

DO

AT-02AI

SC-01

AO

FSH-

01DI

LSL-

01DI

FT-02

AI

FT-03

AI

FT-04

AI

SL

-03

SL

-02

XStrobeSL-01

DO

Control Specifications

Header temperature should be monitored

for high and low temperature conditions.

Both conditions should generate a visible

alarm.

SAMA Drawings

OR

HIGH HDR TEMP.

LOW HDR TEMP

HDR TEMP ALM.

OR

WELL ALARM

SL-01

TURBIDITY ALM.

CHLORINE

ALARM

LSL-

01

HDR TEMP ALM.

TT-01 H/A

Set = 80 oF

L/A

Set = 60 oF.

HIGH HDR TEMP.

LOW HDR TEMP.

Pipe & Instrument DiagramConcentrated Chlorine

User A

User B

User C

Potable Water Tank

Chlorine injection pump

Pump 1

Pump 2

Well

Pump

City

Water

LT-01AI

WE-1

S/S

DO

WE-1

AU

DI

WE-1

STA

DI

FT-01AI

LCV-

01

DO

SL-01

DO

Strobe

AT-01

AI

FCV-

01

DO

Drain

FCV-

02

DO

PU-2

S/S

DO

PU-2

AU

DI

PU-2

STA

DI

PU-1

S/S

DO

PU-1

AU

DI

PU-1

STA

DI

PT-01

AI

FCV-

03

DO

FCV-

04

DO

AT-02AI

SC-01

AO

FSH-

01DI

LSL-

01DI

FT-02

AI

FT-03

AI

FT-04

AITT-01

AI

SL

-03

SL

-02

XStrobeSL-01

DO

Control Specifications

Tank temperature should be kept at a set

point of 25 oC. Steam is available to be

used on the tank jacket for temperature

control purposes

SAMA Drawings

TT-02

PID

TCV-

01

Pipe & Instrument Diagram

Concentrated Chlorine

User A

User B

User C

Potable Water Tank

Chlorine injection pump

Pump 1

Pump 2

Well

Pump

City

Water

LT-01AI

WE-1

S/S

DO

WE-1

AU

DI

WE-1

STA

DI

FT-01AI

LCV-

01

DO

SL-01

DO

Strobe

AT-01

AI

FCV-

01

DO

Drain

FCV-

02

DO

PU-2

S/S

DO

PU-2

AU

DI

PU-2

STA

DI

PU-1

S/S

DO

PU-1

AU

DI

PU-1

STA

DI

PT-01

AI

FCV-

03

DO

FCV-

04

DO

AT-02AI

SC-01

AO

FSH-

01DI

LSL-

01DI

FT-02

AI

FT-03

AI

FT-04

AITT-01

AI

Steam

TCV-

01

AO

SL

-03

SL

-02

XStrobeSL-01

DO