chemical dosing spec

7/17/2019 Chemical Dosing Spec

http://slidepdf.com/reader/full/chemical-dosing-spec 1/14

1

C

HE

MI

CA

L

TR

EA

ME

NT

AN

D

W

AT

ER

F

IL

TR

AT

ION

FO

R

H

I

LL

E

WA

TE

R

C

ON

DE

NS

ER

W

AT

ER

C

IRC

U

ITS

10

1

SY

ST

EM D

ET

AI

LS

10

1 1

C

ooli

ng To

wer

s

Qt

y o

f

C

oo

lin

g

Tow

ers

T

ype

o

f

C

ool

ing

To

we

r

R

eci

rcu

lati

on

ra

te

Tem

p

T

ota

l M

ak

eu

p

Wa

ter

Cy

cle

s

o

f

Co

nce

ntra

tio

n

W

ate

r Qu

alit

y

1

0 1

2

Ch

ille

d W

ate

r

Sys

tem

Qt

y o

f Ch

iller

s

T

yp

e

of

C

hill

ers

Ch

iller

C

apa

city

3N

os

Ind

uce

d

Dra

ft

cou

nte

r

flow

As

shown on drawings

T

o b

e calc

ula

ted

by

Sp

eci

alis

t

6

Mu

nic

ipa

lity

W

at

er

3N

os

W

at

er C

oo

led

Ch

ille

rs

A

s sho

wn

on

dr

aw

ing

s

10

2

M

A

KE

W

A

TE

R

C

HA

R

AC

TER

IS

TIC

S

The

ma

keu

p

wa

ter

to co

oli

ng

to

we

rs

sh

all b

e

v

ia

the dom

est

ic

w

ater

f

rom

Mu

nic

ipa

lity

10

3

TR

EA

TM

EN

T

P

RO

GR

AM

M

E

10

3 1

Nor

ma

l T

rea

tm

ent

P

rog

ram

T

he

c

om

ple

te

r

ecir

cul

atio

n

wa

ter

c

hem

ica

l

tre

atm

en

t

pro

gra

m

sh

all

uti

lize

cor

ros

ion

S

cal

e

In

hib

itor

fed

on

a co

nti

nuo

us

ba

sis

Th

e tr

eat

men

t

p

rog

ram

s

hal

l a

lso

inc

lude

an A

lter

nat

ing

Slu

g

app

lica

tio

n

o

f N

on

Oxi

diz

ing

M

ic

ro

bi

ocid

e

to

h

an

dle

m

icro

o

rga

nis

m

pro

blem

W

hen

req

uir

ed

P

H

adju

sti

ng

fa

cil

itie

s

s

hal

l

also

b

e inc

lud

ed

GCE

7

roposed

HV C Modif ications

t

Modern Bakery

VI



VO

LU

M

Me

ch

anic

al

Se

cti

on

05

Ai

r

C

ond

itio

nin

g Equ

ipm

en

t

10.3 .2

Initial

Dosages

Th

e ini

tial d

osa

ge sh

all

a

sl

ug dos

age o

f ch

em

ica

l

s

uff

icie

nt to

esta

bli

sh

th

e

d

esi

red re

sid

ual

.

sha

ll

on

e tim

e

app

lic

atio

n

ba

sed

on t

he

s

yst

em

v

olu

me

and pr

od

uct

r

esid

ua

l.

10.

3.3

Sta

rt

U

p

T

rea

tme

nt

L

ev

els

T

he

new sy

ste

m

sha

ll

b

e

st

arte

d w

ith

d

oub

le or

tr

iple

th

e no

rma

l lev

els of

c

ont

inu

ous

ly

fe

d

pro

duc

ts

to

en

sure

the rap

id de

velo

pm

en

t

of

cor

ros

ion

in

hib

itin

g

f

ilm

s.

T

he h

igh

trea

tm

ent dos

age

fur t

wo

or

thr

ee da

ys

sha

ll

en

sure t

he re

sid

ual

s

b

ein

g b

rou

ght

to t

hei

r

n

orm

al l

eve

ls.

10 .

3,4

Ma

inte

nan

ce

C

he

mic

als

a

Co

rro

sion

S

ca

le

In

hib

ito

r

T

he pr

odu

ct s

hall

eit

her

a Sy

ner

gis

tic

Al Org

an

ic fo

rm

ula

tion

C

or

ros

ion

o

r Sc

ale

inh

ibi

tor ba

sed

on

P

hos

pho

nat

es

o

r a Zi

nc

Pho

sp

hate

bas

ed

for

mu

lati

on with

dis

per

san

ts

fo

r m

ai

nten

an

ce

of c

lean hea

t

tr

ans

fer

su

rfac

es.

Th

e pr

odu

ct

sh

all

b

e dos

ed con

tin

uou

sly

ba

sed

o

n

the r

ate of b

low

d

ow

n.

b

B

ioc

ide

T

he

pr

odu

ct

sha

ll

b

e

a

p

ow

erfu

l

non

-ox

idi

zin

g

qua

ter

nar

y amm

on

iur

n

co

mp

oun

d

ba

sed

mic

ro-

bio

cid

e

in liq

uid

form

wh

ich

co

ntr

ols

b

act

eria

l an

d

alg

ae

g

row

th

in

c

ool

ing w

ate

r

systems. The product shall be shock dosed alternatively with Biocide

-2

to

prevent

the

i

mm

un

ity of th

e bio

cid

e to

mi

cro

org

ani

sm .Th

e

p

rod

uct sh

all b

e do

sed o

nce

a m

on

th

bas

ed o

n th

e

sy

ste

m v

olu

me

.

c

Bi

oci

de—

2

T

he

p

rod

uct sha

ll be

a

po

we

rfu

l bro

ad spe

ctr

um

ac

tiv

ity

non

-ox

idiz

ing

iso

thi

oza

line

ba

sed mi

cro-

bio

cid

e

in

liqu

id for

m

whi

ch con

tro

ls

ba

cte

ria

fu

ng

i alg

ae g

row

th

i

n

co

olin

g

w

at

er s

yste

ms

.

It s

hou

ld al

so ef

fec

tive

aga

ins

t

Le

gio

nel

a

P

ne

umo

ph

ila and

sul

pha

te re

duc

ing

ba

cte

ria.

The p

rod

uct sh

all

be

sh

ock

dos

ed

alt

ern

ativ

ely

w

ith

R

io

cide

2

to

p

rev

ent t

he imm

un

ity

of t

he b

ioc

ide t

o

m

icr

o org

an

ism

.

Th

e pr

od

uct is

d

ose

d on

ce

a

mo

nth b

ase

d on the

sys

tem

vol

um

e.

1

0.4

CLE

AN

IN

G P

RE

-TR

EA

TM

E

NT

CH

EM

IC

AL

S

a

Pre

-tre

atm

en

t C

hem

ica

l

Th

is pro

du

ct

s

ha

ll

a

l

iqu

id

ble

nd of S

eq

ues

tran

t and D

isp

ers

ant

si

fo

r the

gra

dua

l on or o

f li

ne clea

nin

g o

f

n

on

pot

abl

e

w

ate

r

sys

tem

s to

rem

ov

e

gre

ase d

ebr

is a

nd

m

il

s

cal

e.

T

he ch

emi

cal sh

all be

do

sed dur

ing

pre

co

mm

iss

ioni

ng

o

f th

e

s

yst

em

nor

ma

lly

d

uri

ng sta

rt up.

b

H

igh

L

eve

l Pas

siv

atio

n

T

he C

orro

sio

n

S

ca

le

In

hib

ito

r

s

hal

l

dos

ed

a

t

d

ou

ble th

e

no

rma

l

leve

ls

fo

r

w

to

t

hre

e

da

ys

t

o in

sure th

e

r

api

d dev

elo

pm

ent

of

cor

ros

ion

inh

ibit

or

fi

lm s

10

.5

OP

ERA

T

ING

PA

RA

M

ETE

RS

7

Pro

pos

ed

H

V

\C

Mo

dif

icat

ion

s

at Mo

der

n Bak

ery



VO

LU

ME

II

Me

cha

nic

al

Sec

tion

0

5

A

ir

C

on

diti

oni

ng

Eq

uip

me

nt

T

he

coo

lin

g

to

we

r

p

aram

et

ers

s

hal

l

b

e

m

aint

ain

ed

a

nd o

per

ate

d u

nde

r

t

he Ibli

ow

ing

con

dit

ion

s:

P

AR

AM

ET

ER

OP

ER

AT

IO

N

RA

NG

E

P

H

8.2

—8

.8

To

uil

D

iss

olv

ed

So

lids

(mg

/i)

1

500

M

ax

Tot

al

Su

spe

nd

ed So

lid

s

(

mg

/l)

10

50

To

tal A

lka

lin

ity

(m

g/l)

200

-3

00

Z

inc

(m

g/

I)

3

Phosphonate (mg/I)

2

I

nor

gan

ic

P

hos

pha

tes

(m

g/I

)

6

8

T

ota

l H

ard

nes

s

(mg

/i)

200

-

300

T

ota

l

I

ron

mg

’ )

<3

Chl

ori

des (mg

/i)

4

00

Oil

G

re

ase

m

/l

10

Co

ros

ion

Rat

e

5

mi

ls

per ye

ar

To

tal V

iab

le

C

ou

nt

x

10

5

S

ulf

ate

Red

uc

ing

Bac

ter

ia

1

00 /

10

0

m

l

S

cal

ing

3

0

mg

c

m2

/ yea

r

M

g

X

Sio

2

(mg

/ )

< 3

5,0

00

S

ilic

a (m

g/

i)

10

0

-1

25

10

.6

GU

AR

AN

TE

ES

:

a

C

orr

osio

n

rate

s

F

or

M

ild

Ste

el

5

M

PY

.

Co

ppe

r:

0.5

MP

Y.

SS

<

0.1

MP

Y.

b

Sc

alin

g

1

5-3

Om

g/c

m2

/yea

r.

c

To

tal

Vi

able

Co

unt

5 x

10 5

d

Su

lph

ate

R

edu

cin

g

B

act

eria

’s

1

1

m

l.

1

0.7

CH

EM

IC

AL

DO

SA

GE

S

10

.7.

1 Ma

int

ena

nce

C

he

mic

al

fo

r one y

ear

P

ro

duc

t

D

os

age

I

niti

al

M

ai

nt.

K

gs

/da

y

K

gs/

K

g/

Pa

ck

s

ize

Dr

um

s

(

pp

m)

till

(k

g’h

r)

m

on

th

yea

r

pe

r D

rum

/y

ear

Corrosion 80

100

0.6179

3 9

28 110

S

cal

e I

nhib

ito

r

Sl

it

Di

spe

rsan

t

5

0

.038

6

1

93

34

6

r

i

e

—

l

100

90

108

0

2

5

44

C

E

7

ro

oos

ed [I

VA

C

M

od

ific

ati

ons

at

M

od

ern

B

ak

ery

‘



V

OL

UM

II

M

ech

ani

cal

S

ect

ion

05

Ai

r

Co

nd

itio

ning

Eq

uip

men

t

Product Dosage Initial Maint. Kgs/day Kgs/ Kg/ Pack size Drums

p

pm

fill

kg’

hr)

m

on

th

ye

ar

p

er

D

ru

m

y

ear

kg

s)

Bio

cid

e2

10

0

90

10

80

2

5

9

8

2

5

In

itial F

ill

H

igh

Le

vel P

ass

iva

tion

P

rod

uct

D

osa

ge

Ini

tial

Ma

int.

K

gs

/

d

ay

K

gs

’

Kg

/

Pac

k

siz

e D

rum

s

ppm

)

fill

kg/

hr)

m

on

th

y

ea

r

per

Dru

m

/ye

ar

kgs)

h

igh

L

eve

l

1

15

35

5

P

as

siva

tio

n

Bio

cid

e—

1

100

45

25

2

B

io

cide

-

2

100

4

5

25

2

Cle

anin

g

150

0

60

0

28

2

2

he

nuc

al

NO

TE

:

a

A

ll hou

rly

ch

em

ica

l co

nsu

mp

tion

sh

all

be b

as

ed

on

th

e

f

ollo

win

g

c

alc

ulat

ion

:

Q

uan

tity

kg

s/h

r)

Blo

w dow

n

m

3/hr

x D

os

age

1

00

0

b

A

ll s

lug do

sin

g

of bio

cid

e s

hal

l

b

e

b

ase

d

o

n

the

fol

low

ing

cal

cul

atio

n:

Qu

ant

ity

k

gs/

dos

e)

Sy

stem

Vo

lum

e

m

3

x Do

sag

e

1

000

1

0.8

AU

TO

MA

TI

C

C

ON

DU

CT

IV

ITY

C

ON

TR

OL

LE

D

Ch

EM

IC

AL

OS

IN

SY

ST

EM

10.

8.1

Con

cep

t

T

he

aut

om

atic dos

ing

sy

ste

m

sha

ll

pr

ovi

de

a

n

ef

fec

tive

an

d f

ool

pro

of

wa

y o

f

Co

rro

sion

inh

ibi

tor

d

osin

g. Th

e

s

yste

m

s

hal

l be

b

ase

d

on Co

nd

ucti

vity

con

tro

l,

blo

w

do

wn

an

d ma

keu

p qu

ant

ity,

wi

th an

cill

ary

e

qui

pme

nt

se

lec

ted

to

m

ee

t

t

he

ex

act

ap

plic

atio

n.

10

.8.2

C

oo

lin

g

To

wer

C

on

trol

ler

W

ate

r M

ete

r

I

npu

t, for

Volumetric / Proportional Dosing.

Me

asu

rem

en

t

of C

ond

uct

ivit

y

f

or B

lee

d C

ont

rol.

Me

asu

rem

en

t

of

R

ed

ox

fo

r

C

hlo

rine

Ozo

ne

Add

itio

n.

D

ire

ct co

nne

cti

on

o

f

all Pu

mp

s

V

alv

es.

Ble

ed

In

hib

it

dur

ing

an

d

a

fte

r

d

osi

ng.

c

CE

7

ro

pos

ed

HV

o

dlil

cat

ion

s t

od

ern

ak

ery



VO

U

M

Me

cha

nic

al

Se

ctio

n

05

ir

on

diti

oni

ng

Eq

uip

me

nt

Real Time Clock for Timed Dosing.

Sim

pl

e

I

ntu

itiv

e

Pro

gra

mm

ing

L

arg

e

Ba

klit

n

M

ulti

fun

ctio

n

Dis

pla

y.

IP

66 Wa

ll

P

ipe Mo

unt

ing

O

pti

ons

.

M

ult

ilin

gua

l

Te

xt Err

or

M

ess

ag

es.

10.8.3 Sp

eci

fica

tion

Rel

ay

Ou

tpu

ts Fo

ur rel

ay

o

utpu

ts B

lee

d,

B

ioc

ide 1 Bi

oci

de

2

and C

orro

sio

n

Inh

ibi

tor

sha

ll

b

e

pro

vid

ed

tbr p

um

p

/s

ole

noi

d

o

per

atio

n

ea

ch

wi

th

live a

nd n

eutr

al

t

erm

ina

l.

A

lar

m R

elay

Vo

lt free con

tac

t to be pro

vid

ed

t

o

giv

e

ext

ern

al

in

dic

atio

n

of s

elec

ted ins

trum

en

t

conditions.

Ti

me

D

os

ing

— T

he

em

bed

ded

real

tim

e

cl

ock

sha

ll

p

rov

ide

a

u

ser

se

lect

abl

e

d

ose p

eri

od

f

rom 5

m

inu

tes

to

24

ho

urs o

r day

of

w

ee

k do

sin

g.

Vol

um

etri

c

D

osi

ng

Th

e

wa

ter

m

ete

r input

sha

ll

p

rov

ide

a

co

ntin

uo

us

co

unt

of

w

at

er in

put

,

u

sin

g

de

fina

ble K

fa

cto

r

al

low

ing vo

lum

e

pro

por

tion

al dos

ing

.

D

osin

g

by

co

nd

ucti

vity Th

e

b

lee

d

out

put

sh

all

be tr

igg

ere

d from

the

c

ond

uct

ivit

y

i

npu

t

op

era

tin

g

wh

en

t

he

i

npu

t

ris

es ab

ov

e

th

e level

Do

sin

g

by

Re

do

x Th

e

bio

cide

o

utp

uts

sh

all

be

trig

ger

ed

fr

om the R

edo

x

s

ens

or in

put

op

era

ting

when the input goes above the

set

level

Se

nso

r I

npu

t

E

lec

trod

les

s

C

on

duc

tivi

ty

S

ens

or

w

ith a m

ea

sur

eme

nt

r

ang

e

of

0

to

9

999

us

/cm

.

Re

dox S

ens

or inp

ut

-2

000

mv

to

+

2

000

mv

.

Po

we

r Su

ppl

y

—

85

to

250

V

C

10.8.4

Eq

uipm

en

t

D

et

ails

a Co

rros

ion I

nhi

bito

r

Do

sin

g

T

ank

.

C

lo

sed

Pol

yet

hyl

ene s

int

ered

UV sta

bil

ized w

ith

s

inte

red

s

cale a

nd scr

ew caps

Ca

pac

ity

3OUS

Ga

llon

s.

b Co

rro

sio

n In

hib

ito

r

D

osi

ng

Pum

p.

E

lect

ron

ica

lly

c

ont

rol

led

so

len

oid

d

riv

en

di

aph

rau

m

m

ete

rin

g

p

um

p

in

pla

stic ho

usin

g.

W

ith

ext

erna

l

pu

lse an

d level

con

tro

l

con

ne

ctio

n

2

30V

,5O

Hz

,IP

65 .

C

ap

—0-4

Iph

:

ba

r

c

B

ioc

ides D

osin

g Ta

nks

.

C

los

ed

Po

lye

thy

lene

s

inte

red

U

V

st

abi

lize

d wit

h

si

nte

red

s

cal

e

a

nd

scr

ew

c

aps

.

Ca

pac

ity

30

US

ga

llon

s.

d

Bi

ocid

es Dos

ing Pu

mp

s.

E

lec

tron

ica

lly co

ntr

olle

d

s

ole

noi

d

d

rive

n

d

iap

hra

gm

m

et

erin

g

p

um

p

in p

last

ic ho

usi

ng.

With

exte

rna

l

pu

lse co

ntro

l and level

c

ont

rol con

nec

tio

n

2

30

V.

5OHz.lP

65 .

GC E 147

Proposed

[IVAC

Modifications

Modern

Bakery

‘4

36



VO

U

M

II

Me

cha

nic

al

Se

ctio

n 0

5

A

ir

C

on

diti

oni

ng Eq

uip

me

nt

Cap

aci

ty

20

45

Iph

5

bar

e Co

oli

ng T

ow

er

Wa

ll

M

ou

nte

d C

ond

uc

tivi

ty

C

on

tro

ller

0

999

9

m

icro

s

iem

ens

/

cm

an

d

se

nso

r

f

Wa

ter

M

ete

r—

50

mm

di

a

g

E

lect

rica

lly

Act

uat

ed

S

olen

oid

V

alv

e in

Bl

ow

dow

n

li

ne

10 9

TEC

H

NIC

AL

S

ER

VI

CES

Technical services and monitoring shall be an integral part

of

the Treatment program

Con

sid

era

ble

st

ress

s

hal

l

b

e

lai

d on p

rop

er

and

sys

tem

ati

c

m

onit

ori

ng

of s

yst

em

w

ith

de

tail

ed

p

roc

edu

res

A hi

ghl

y

exp

erie

nc

ed

f

ield En

gin

eer

sha

ll be

ass

ign

ed

fo

r

thi

s job

w

ho

sha

ll arra

nge

to i

niti

ate

im

plem

en

t

an

d

s

tab

ilize

th

e

tr

eatm

en

t

pro

gra

m

T

he s

up

plie

r s

hal

l

vi

sit

the pla

nt

for

serv

ice

on a free

of

co

st b

asi

s

wh

ich s

ha

ll inc

lud

e t

he

f

ollo

wi

ng:

a

Ch

eck

and

in

spe

ct

eac

h

plan

t

be

ing tr

eate

d

b

D

is

cus

swi

th

ope

rati

ng

pe

rso

nne

l

the

per

form

an

ceo

f pro

gra

m

c R

evi

ew

l

ogg

ed

an

d

a

nal

yze

s

th

e

sar

nea

t si

te

d

Ta

ke s

am

ple

s

an

d ana

lyz

e

the s

am

e at

s

ite

e

P

rep

are

o

n ea

ch

vi

sit de

tail

ed ha

ndw

rit

en

re

po

rt dis

cus

s

the f

md

ing

of

rep

ort

wit

h

ma

na

gem

en

t

10

10

M

ON

ITO

RI

NG

Th

e p

rog

ram sha

ll inc

lud

e

the

foll

ow

ing

:

a

Corrosion control

Wa

ter An

alys

is

Ir

on An

alys

is

b

D

ep

osit

C

ont

rol

W

at

er

An

alys

is

D

ep

osit A

nal

ysis

Calcium balance

c

Fo

uli

ng

Con

tro

l

\lic

roh

iolo

gic

al

A

na

lysi

s

G

E

47

Pr

opo

sed

F

IV

M

od

ifi

cati

ons M

od

ern

Bak

ery

M

7



VO

U

M

II

M

ech

an

ical Se

ctio

n 0

5

A

ir

Co

ndi

tion

ing Eq

uip

me

nt

Co

rro

sion

Ra

te

Mo

nito

rin

g

10.

11

SEP

AR

AT

OR

Fo

r

s

ide str

eam

filt

rati

on a

cen

trif

uga

l

se

para

tor

sha

ll be

su

ita

bly

si

zed

a

t

10

of

t

he tota

l

flow r

ate o

f

c

ool

ing

to

we

rs.

Th

e sep

arat

or

sh

ll be

of c

arb

on s

tee

l

con

stru

cti

on

wi

th

c

lass 1

50 f

lan

ges

.

M

ate

ria

l

th

ick

nes

s s

hal

l

be

¼”

o

r

sch

ed

ule

40 co

nne

ctio

n

si

ze,

w

hi

che

ver

is le

ss

Separator shall

be

a

cleanout connection

T

he wor

kin

g

p

res

sure

o

f the se

par

ato

r

sha

ll b

e

15

0 ps

i.

Th

e sep

arat

or sha

ll

be

sa

ndb

las

ted

and ex

tern

ally

fi

nish

ed

w

ith a

fus

e

c

oat

ed

pol

yes

ter.

T

he s

epa

rat

or s

yst

em sh

all

als

o incl

ude

a

rec

ove

ry ta

nk s

yste

m w

ith mo

nit

orin

g s

yst

em,

cir

cula

tin

g pu

mp

set du

ty / s

tan

dby

),

pre

ssur

e

gau

ge

s,

p

ipin

g, iso

lati

on

valv

es

a

nd con

tro

l

p

ane

l.

Th

e se

par

ator d

esi

gn sha

ll b

e o

f

lo

w

p

res

sure

ty

pe

wit

h

mi

nim

um

3

ps

id op

era

tion

po

int

.

Se

par

atio

n

pe

rfo

rma

nce

sh

all be

97.

4

by w

ei

ght

, o

f

p

arti

cle

s

4

5 mic

ron

a

nd la

rge

r,

w

ith

sp

ecif

ic

gravity

of

2.6 greater

in

fluids with specific gravity

of

one l.O)

and

less

1

0.1

2

FL

US

HI

NG A

ND

C

LE

AN

ING

Flu

sh all

flui

d-c

arry

ing sy

ste

ms afte

r

co

mp

leti

on

wi

th

a

stre

am

of wat

er

or

ap

pro

pri

ate

flu

id at

th

e

hi

ghe

st

o

bta

ina

ble

p

ress

ure

an

d

v

elo

city

f

or a p

erio

d of

tw

o hou

rs.

D

isc

har

ge

the flus

hin

g flu

id

th

rou

gh

al l

str

ain

ers

nd

out t

hro

ugh

lin

e s

ize

d

v

alv

es

wit

h

h

ose

en

ds

.

Cle

an

all s

trai

ners

,

R

epe

at

f

lush

ing o

per

atio

n

to

th

e ap

pro

val

o

f

t

he Co

nsu

ltan

t u

ntil n

o fo

reig

n

m

att

er

col

lec

ts

in the

st

rain

ers

.

D

rain

all

tan

ks a

nd clea

n t

ank

s.

I

f th

e wat

er pr

ess

ure

n

orm

all

y

av

aila

ble

on

sit

e

is

in

th

e

C

ons

ult

ants o

pin

ion

,

i

nad

eq

uate

to

perform proper flushing, then The Contractor shall provide

at

his

own expense, pumps, tanks.

etc.

to

g

ive p

res

sure

an

d

v

olu

me

flo

ws

to

the

C

on

sul

tant

’s

s

atis

fac

tion

.

Ens

ure th

at

all

v

alv

es

inc

lud

ing

co

ntro

l valv

es

a

re

f

ully

op

en

d

uri

ng

the f

lus

hin

g

a

nd c

lea

nin

g.

B

ef

ore

s

tar

ting

up

an

y fa

ns, ins

pec

t an

d d

ean

the

ins

ide of al

l

air

h

and

ling

sy

ste

ms

i

ncl

udi

ng

fan

s,

d

uct

s, coi

ls,

ter

min

al u

nit

s,

t

o en

sur

e th

at th

ey

are fre

e fr

om

du

st

a

nd

de

bri

s.

C

ar

ry

out

a

dd

itio

nal

cle

ani

ng

op

erat

ion

s of

sys

tem

s

as sp

ecif

ied

in oth

er

sec

tio

ns

of

this D

ivi

sio

n.

10.1

3

CH

IL

LE

D

W

AT

ER

SY

ST

EM

TR

EA

TM

EN

T

CH

EM

IC

AL

CL

EA

NIN

G

)

Th

e chi

lled

wa

ter

sys

tem

sha

ll

h

e

pre

pare

d as

de

tai

led el

sew

he

re

h

erei

n-T

he s

yst

em

wil

l

the

n

be

fur

the

r

t

rea

ted.

Pr

ior

to

t

est

ing

a

nd

co

mm

iss

ion

ing

,

th

e con

sul

tant

sh

all

b

e

pro

vid

ed w

ith wa

ter c

ond

itio

nin

g

pr

ogr

am

, to c

on

trol

w

ater

q

ual

ity.

Cle

ani

ng

s

hall be

sup

erv

ise

d,

nd

p

rog

ram

of

c

ond

itio

nin

g

a

dm

inis

tere

d

b

y

t

he

co

ndi

tio

ning

co

mp

any

.

CE

47

r

opo

se

H

V o

dili

ca t

ions

a

t o

de

rn

ak

ery

3

8



V

OL

UM

E

II

M

ec

han

ica

l

S

ect

ion

05

A

ir

o

n

d

iti

o

ni

ng

q

u

ip

m

e

nt

For Pre-commission cleaning, the system shall be dosed with Die prescribed am

ou

nt

of th

e

non

-

acid

cle

anin

g

age

nt

an

d

a

su

rfa

ctan

t

a

s

ad

vise

d

by

the

ch

em

ical

com

pa

ny.

Cle

ane

r

s

hal

l

be

run

int

o

the

sy

ste

m

a

nd ret

ain

ed

fo r

a

per

iod

of 7

2

hrs

o

r

m

ore

as a

dvi

sed

by th

e

ch

em

ica

l

c

omp

an

y,

at

th

e en

d

of

thi

s p

erio

d

t

he s

yst

em

sha

ll

be

dr

ain

ed

and

flu

she

d w

ith

cl

ean

w

ater

.

Al

l

str

ain

ers

an

d tra

pp

ing

po

int

s

sha

ll

be

insp

ect

ed,

and

an

y

deb

ris

rem

ov

ed.

S

yst

em

sha

ll

b

e r

efil

led w

ith

cl

ean

wa

ter,

re

-cir

cul

ate

d

o

r

ru

n th

rou

gh

for a

fu

rth

er

fou

r

hou

rs,

an

d

aga

in

dra

ine

d

a

nd

flus

hed

.

Th

e

fl

ush

ing

s

hall

co

ntin

ue

till

the

e

fflu

en

t

is

cle

ar, col

our

les

s,

od

ou

rles

s,

f

ree

fr

om s

usp

end

ed

sol

ids

an

d

suc

h

that

th

e

ir

on

lev

el i

s

n

ot m

or

e

t

han

1

pp

m

an

d

the conductivity

is

no

more than

3

ts/cm

t r

than the make

up wa

ter

.

u

pon

co

mp

leti

on

of flu

shi

ng

all stra

ine

rs

sh

all

he

in

spe

cte

d

and

any d

ebr

is

r

em

ove

d.

The

sys

tem

sh

all b

e re

fill

ed

wit

h

cle

an w

at

er

and

a s

pec

ifie

d

am

ou

nt

of

inh

ibi

tor

ad

de

d.

T

he

C

he

mic

al

C

om

pan

y

r

epr

ese

nta

tive

s

hal

l con

du

ct

an

a

nal

ysis

o

f

t

he

s

yst

ems

wa

ter

a

fte

r

th

e

cl

ean

ing

o

per

atio

n.

and

sh

all

s

ubm

it

a

rop

ed

t

o

th

e Co

nsu

ltan

t.

N

ot

e: Th

e

M

ech

ani

cal

Co

ntra

cto

r

sh

all

ad

vis

e

on

the

ho

ldi

ng

ca

pac

ity

o

f

th

e s

yst

ems

to

be

c

lean

ed

to

the

Che

mi

cal

Com

pa

ny

,

in ord

er

t

hat t

ie a

mo

un

t

o

f

cle

ane

r

req

uire

d

may

b

e ca

lcul

ate

d.

T

he

m

ec

han

ica

l

Co

ntr

acto

r

sh

all

pr

ovi

de

a

utom

at

ic

c

losi

ng

s

yste

m

co

mpl

ete

w

ith

ch

em

ical

t

ank

,

pump and control panel.

1

14

CH

ILL

ED WA

TE

R

S

YS

TE

M

TR

EA

TM

EN

T

C

HE

M

ICA

L

DO

SA

GE

1

14

1

In

itia

l

Re

qu

irem

en

t

o

f Ch

em

ical

s:

The

qu

ant

itie

s

sho

wn

be

low

ar

e

ind

ica

tive

.

The

a

ctu

al q

uan

titie

s

to

be che

ck

ed

by t

he

spe

cia

list

su

ppl

ier

bas

ed

o

n t

he

sys

tem

dem

an

d.

Cl

ean

ing

C

hem

ic

al

1

-

150

Kgs

Corrosion Inhibitor

2

250 Kgs

Mic

rob

ioc

ide

1

Kg

s

Bio

cid

e

5

K

gs

P

ass

iva

tion

Ch

em

ica

l

1

—

15

Kgs

1

1

4 2

Ch

em

ica

ls

for

one

Ye

ar

con

sum

pt

ion

:

C

lean

ing

C

he

mic

al

4 d

rum

s

Co

rro

sion

I

nhi

bito

r

8

d

rum

s

M

ic

rob

ioci

de

2 dr

um

s

Pas

siva

tio

n

Ch

em

ica

l

4

d

rum

s

11

L

T

R

I

MO

TO

RS

U

nle

ss

oth

erw

ise

s

pec

ifie

d

in

the

equ

ipm

en

t

spe

cifi

cati

ons

,

all

m

oto

rs

sup

pli

ed

an

d in

sta

lled

as

a

of m

ec

han

ica

l

w

ork

s

sha

ll co

nf’o

nn

to

th

e

fol

low

ing

r

equ

ire

men

ts:

G 47

Pro

po

sed

H

V

Mo

difi

cat

ion

s

at

Mo

der

n

B

ake

ry

M

9



VOLUME

II

Mechanical Section

05

Air

Conditioning

Equipment

d

et

weight.

e Purchase

order

number.

11 11 All motor

shafts

shall

be

provided

with

a

key way unless

the motor is of

the

flange mounted

type

in

which case they

shall

be

complete

with adjustable

rails.

11 12

The

frame shall

be

painted

in accordance

with

manufacturers standards.

However,

the

painting

shall

at

least

consist of one

coat

of

primer

and two coats

of

oil-resistant

finishing

paint.

12 0

MOTOR

STARTERS,

CONTROLS SWITCHGEAR

All starters and

other control components

shall

be supplied

and

installed

under

this section

but

the

contractor

shall ensure

that

all components

supplied

shall

comply

with the

requirements

of the

relevant

sections

of

the electric

specifications.

13 0 PANEL

BOARDS

AND

MOTOR

CONTROL

CENTRE.

Construction

of all

panel board. motor

control

centres,

control

panels etc

shall

comply with

the

relevant

sections

of

the

electrical

specifications.

13 1

Air handling unit

/

fan

starter

panels:

Each

air handling

unit shall

be

supplied

with a

starter cubicle

including the

following:

a

A

door

interlocked

isolator

handle.

b

A

three

position

HAND/OFF/AUTO

control

switch.

c

“motor

run” lamp

green .

d

A

“motor

trip”

lamp

red .

e

Motor speed

selector

switch

f

Motor

starter assembly.

g Control fuse

h

Filter pressure drop

filter

clog

indication

j

Inter-connection

with fire

alarm

system

and extract fhns

k

Power

fuses

with

carriers

and

bases.

Moisture

elimination heating

coil.

rn Heating

element

contactors and

controls.

n

leating

element

energized’ lamp

Green

GCE 147 Proposed

HVAC

Modifications at

Modern

Bakery

41



VOLUME

II Mechanical

Section

05

Air

Conditioning Equipment

o)

Heating element

tripped

lamp

Red

Note:

Control switch “Off’ Motor shall not run.

Control switch

“Test”

Motor shall run except

for

local lock-off stop

buttons.

Control switch “Auto” Motor shall start and stop under dictation from

remote

control

circuit.

Starter panels, where installed outdoor,

shall

be

of

the

weatherproof

type

in IP 65

enclosure.

13.2 Fan Coil Unit Control Enclosure

Control

components

of each fan

coil

unit like contactors, transformers, controllers, etc. shall be

housed within

an

enclosure located besides

the unit

within the ceiling

void.

13.3

Motor Control Centre

Motor

control centre shall be of

the

cubicle type, floor mounted and shall

contain

the

following:

Incoming

as

shown

on the

schematic

diagram.

Busbars

for

each phase, neutral

and earth.

-Outgoing as

shown

on the

schematic

diagram.

Starter

as

indicated on

the schematic diagram.

Pilot light for each phase

-Pilot light for each motor in the plant room

Push

button start-stop

for

each motor

and plant

room.

-One ammeter

with selector switch

fo r

each

motor

in

plant

room.

One

ammeter

for each phase fo r the incomer power supply

-Volt meter

with selector

switch.

-All required interlock wiring

Motor

duty

selector

switch.

Phase monitor relay

for

each motor

Low

voltage protection device.

-Bank

of

capacitors for

power

factor

improvement

as

required by

DEW

Where

motor

control centres are installed outdoor, the panel shall be of the

weather

proof type IP

iCE 147

Proposed

HVAC

Modifications Modern Bakery

M 42



VOLUME

II

Mechanical

Section

03

Chilled

Water

Pipework

manufacturer imposes

more

stringent requirements.

14 13

The positioning

of

anchors and guides immediately adjacent

to

angular expansion devices

shall

be in

accordance with

the manufacturer’s

recommendation

for

the application

concerned

and shall

be

submitted to

the Consultant

for approval

before

installation

commences.

The

remainder

of

the

pipework

shall

be

set

in guides

at

a maximum

of twice

the maximum

interval

for

support

spacings specified

elsewhere

for

the pipe

size to which

the

expansion

device

is

fitted.

15.0

WATER SYSTEM

TREATMENT

CLEANING

15 1

The chilled

water

system shall

be prepared

as

detailed

elsewhere

herein.

The

system will

then

be further

treated.

15 2

Prior

to

testing

and

commissioning,

the

consultant

shall be

provided with water conditioning

programme,

to

control

water

quality.

Cleaning

shall

be supervised,

and

programme

of

conditioning

administered

by

the

conditioning

company.

15 3

For

Precommission

cleaning,

the

system

shall be

dosed

with the

prescribed

amount of the

non

acid

cleaning

agent

and

a

surfactant as advised

by the

chemical

company.

15 4

Cleaner

shall

be

run into

the

system

and retained for

a

period of 72

hrs.

or

more

as

advised

by

the

chemical

company. At the

end of

this period

the

system

shall

be

drained and

flushed with

clean water.

15 5

All

strainers and trapping

points

shall

be

inspected,

and

any debris

removed.

15 6

System shall

be

refilled

with

clean

water,

re-circulated

or

run

through

for

a

further

four

hours,

and

again

drained and

flushed. The flushing shall

continue

till

the

effluent is clear,

colourless.

odourless,

free from

suspended

solids

and such

that the

iron

level

is

not more

than

10

ppm

and the

conductivity is no

more

than

30 ps/cm greater

than the

make

up

water.

15 7

Upon completion

of flushing

al l strainers shall

be inspected

and any

debris removed.

15 8

The system shall

be refilled

with

clean

water

and

a

specified

amount of inhibitor added.

15 9

The Chemical

Company representative

shall

conduct

an

analysis of the

system’s

water

after

the

cleaning

operation,

and

shall

submit a report

to the

Consultant.

Note:

The Mechanical

Contractor

shall

advise on

the holding

capacity

of the

systems to

be

cleaned to

the

Chemical

Company, in

order that

the amount

of

cleaner

required

may

be

calculated.

16

START

UP

CHEMICALS

16 1

The

supply

of all chemicals

for system startup

shall

be

the

scope

of

this

contract. Chemicals

sufficient

for

contractual maintenance

period

shall

be

arranged

by the

Contractor.

17.0

VIBRATION

ISOLATION

See

Ductwork

Specification.

CE

147-

Proposed

FIVAC

Electrical Modifications

at Modern

Bakery

13



2 8

Chemical

Treatment Unit

The

chiller plant

manager

via

the

volt

free contacts from

the unit

control panel

shall monitor

the

fo iowng

Pump

set in auto

GCE

47

Proposed HVAC Modifications at Modern

Bakery

M



VOLUM

Mechanical

Section 7

Automatic

Controls

Pump

u status

Pump

trip

alarm

chemical dosing spec

Documents