qty take off presentation-hvac

60%60%

2

1.1 WATER SIDE

1.1.1 Countable Items

Count qty of items by tag no wise/capacity wise/size wise from the drawing and schedule.

Record the qty in hard copy and xls sheet as floor/zone wise.

Compare the takeoff qty with BOQ qty.

Find out difference in items qty.

If any deviation in items qty,RFI to be raised.

Basic unit of measurement – nos, set

3

1.1 WATER SIDE

1.1.2 Measurable Items

Measure qty of items size wise from the drawing.



Note down the Scale of drawing and use particular scale/conversion.

Find out difference in qty.


Basic unit of measurement – meters

4

1.1 WATER SIDE

1.1.3 Assumable Items

List of out the assumable items.

Connect these items to primary measure/Count items qty.

Calculate the qty from primary items qty respectively.


Compare the takeoff qty with BOQ qty (if avail)

Finalize the qty

Basic unit of measurement – nos,liters,meters,sq.m

5

1.1 WATER SIDE

1.1.3.1 Assumable Items-Pipe Insulation

List out dia wise pipes take off qty.

Note down the thickness of insulation as per specification ,drawing ,BOQ.

Arrive and Segregate the pipes insulation qty based on locations.(exposed or conditioned)

Compare the takeoff qty with BOQ qty and finalize the qty.

Application(in general)Conditioned locationExposed location

6

Example

S.No ItemsPipe dia in

mmPipe qty in mtr Pipe Insulation qty in mtr

Conditioned area -25 mm thick

1 Chilled Water Pipes 25 25 25

Roof/Exposed area-50mm thick

2 Chilled Water Pipes 25 53 53

noteConditioned location -25 mm insulation thickExposed location -50 mm insulation thick

1.1.3.1 Assumable Items-Pipe Insulation

7

1.1 WATER SIDE

1.1.3.2 Assumable Items-Pipe Cladding

Indentify the requirement of cladding on pipe insulation as per speciation.

Arrive the qty of cladding(sq.m) over pipe insulation.


Compare the takeoff qty Compare the takeoff qty with BOQ qty if available and finalize the qty.

Application In generalCladding in Exposed area Pipe insulation thick 50mm

8

Pipe

nominal

dia in mm

Pipe outer dia

in mm

Ins thick both

side in mm

Pipe dia with

ins in mm

Pipe ins qty in

mtr

Perimeter m

(3.14 x D)

Surface Area

Cladding(Sq.m)

a a' b c=a*b d e=c*3.14 f=d*e

20 26.7 100 126.7 50 0.40 19.9

25 33.4 100 133.4 50 0.42 20.9

32 42.2 100 142.2 50 0.45 22.3

notePipe outer dia as per ASTM sch 40Exposed location 50mm insulation thick

1.1.3.2 Assumable Items-Pipe Cladding

Perimeter calculationPerimeter = 3.14 * D

Where D- Diameter of pipe with insulation

Assume 50mm insulation thickness

Exposed location 50mm insulation thick

9

1.1 WATER SIDE

1.1.3.3 Assumable Items-Pipe Supports(Chilled water)

List out pipes qty size wise “with insulation” from the take off qty.

Find the supports distance by specification and drawing.

Arrive the supports qty size wise from the support distance.

Compare the takeoff qty with BOQ qty (if available.)

Finalize the qty

10

Pipe

nominal dia

in mm

Pipe outer dia

in mm

Ins thick both

side in mm

Pipe dia with

ins in mm

Pipe qty in

mtr

Support

spacing in

mtr

Support

(hangers)

qty in nos

a a' b c=a*b d e f=d/e

20 26.7 100 126.7 50 2 25

25 33.4 100 133.4 50 2 25

32 42.2 100 142.2 50 2 25

Pipe

nominal dia

in mm

Pipe outer dia

in mm

Ins thick both

side in mm

Pipe dia with

ins in mm

Pipe qty in

mtr

Support

spacing in

mtr

Riser Clamps

qty in nos

Riser

support(angle/

channel)qty in

mtr

Ceiling suspended supports

Riser supports

1.1.3.3 Assumable Items-Pipe Supports(Chilled water)

in mm mtrmtr

a a' b c=a*b d e f=d/e g=0.4*f

20 26.7 100 126.7 50 2 25 10

25 33.4 100 133.4 50 2 25 10

32 42.2 100 142.2 50 2 25 10

Pipe

nominal dia

in mm

Pipe outer

dia in mm

Ins thick both

side in mm

Pipe dia with

ins in mm

Pipe qty in

mtr

Support

spacing in

mtr

Support

clamps

qty in nos

Support(angle

/channel)qty

in mtr

Support MS

plate qty in

no

a a' b c=a*b d e f=d/e g=(0.4+0.4)*f h=f

20 26.7 100 126.7 50 2.5 20 16 20

25 33.4 100 133.4 50 2.5 20 16 20

32 42.2 100 142.2 50 2.5 20 16 20

note:

per support 0.4m length assumesd

per support 0.4m height assumesd

MS plate size 200x200x5 mm

50mm thick pipe insulation

Roof supports

11

1.1 WATER SIDE1.1.3.4 Assumable Items-Insulation vapor barrier


Find out pipes surface area

Arrive the qty of vapor barrier from the surface area.

Record in xls or hard copy .

Finalize the qty

12

Pipe nominal

dia in mm

Pipe outer dia

in mm

Ins thick both

side in mm

Pipe dia with

ins in mm

Pipe qty in

mtr

Perimeter in

m

(3.14 x D)

Surface Area

(Sq.m)

Vapor Barrier-

ltr(2sq/ltr/coat)

a a' b c=a*b d e=c*3.14 f=d*e g=f/2*2coat

20 26.7 100 126.7200 0.40 79.6 79.6

2533.4 100 133.4

200 0.42 83.8 83.8

32 42.2 100 142.2200 0.45 89.3

89.3

note pip insulation thick 50mm

1.1.3.4 Assumable Items-Insulation vapor barrier


13

1.1 WATER SIDE1.1.3.5 Assumable Items-Insulation Adhesive Glue



Arrive the qty of Glue from the surface area.


Finalize the qty

14

Pipe nominal

dia in mm

Pipe outer dia

in mm

Ins thick both

side in mm

Pipe dia with

ins in mm

Pipe qty in

mtr

Perimeter in

m

(3.14 x D)

Surface Area

(Sq.m)

Glue-

ltr(5sqm/ltr)

a a' b c=a*b d e=c*3.14 f=d*e h=f/5

20 26.7 100 126.7 200 0.40 79.6 15.9

25 33.4 100 133.4 200 0.42 83.8 16.8

32 42.2 100 142.2 200 0.45 89.3 17.9

1.1.3.5 Assumable Items-Insulation Adhesive Glue


15

1.1 WATER SIDE1.1.3.6 Assumable Items-Self adhesive tape



Arrive the qty of self adhesive tape from the surface area & length of pipe.


Finalize the qty

16

Pipe nominal

dia in mm

Pipe outer dia

in mm

Ins thick both

side in mm

Pipe dia with

ins in mm

Pipe qty in

mtr

Perimeter in

m

(3.14 x D)

Surface Area

(Sq.m)

Al foil 3" in

roll(50 mtr/roll)

a a' b c=a*b d e=c*3.14 f=d*e j=d/1.2*e+d /50

20 26.7 100 126.7 200 0.40 79.6 5

25 33.4 100 133.4 200 0.42 83.8 5

32 42.2 100 142.2 200 0.45 89.3 5

1.1.3.6 Assumable Items-Self adhesive tape


17

1.1 WATER SIDE1.1.3.7 Assumable Items-Insulation Canvas cloth



Arrive the qty of Canvas cloth from the surface area.


Finalize the qty

18

Pipe nominal

dia in mm

Pipe outer dia

in mm

Ins thick both

side in mm

Pipe dia with

ins in mm

Pipe qty in

mtr

Perimeter in

m

(3.14 x D)

Surface Area

(Sq.m)

Canvas cloth

30 yard roll(70

sq.m/roll)

a a' b c=a*b d e=c*3.14 f=d*e i=f/70

20 26.7 100 126.7 200 0.40 79.6 1.1

25 33.4 100 133.4 200 0.42 83.8 1.2

32 42.2 100 142.2 200 0.45 89.3 1.3


1.1.3.7 Assumable Items-Insulation Canvas cloth


19

1.1 WATER SIDE1.1.3.8 Assumable Items-Vibration pad/Inertia base

List out main equipments qty from the take off qty.

Find vibration pad and inertia base /unit

Arrive the total qty


Finalize the qty

20

1.1.3.8 Assumable Items-Vibration pad/Inertia base

Item Qty in nosVibration Pad

qty/Unit in no

Toltal Vibration

Pad qty/Unit in

no

Inertia base

qty/Unit in no

Total Inertia

base qty/Unit in

no

a b c=a*b d e=a*d

Chiller 2 12 14

Pump5

1 5 Pump5

1 5

note per chiller 12 no assumed

per pump1 no assumed

21

1.1 WATER SIDE

1.1.3.9 Assumable Items-Pipe Painting

Indentify the requirement of painting on pipe as per speciation.

Arrive the qty of paint(ltrs) over pipe


Finalize the qty

22

1.1.3.9 Assumable Items-Pipe Painting

Pipe nominal

dia in mm

Pipe outer dia

in mm

Pipe qty in

mtr

Perimeter m

(3.14 x D)

Surface Area

pipe(Sq.m) No of Coat

Paint qty in

ltrs

a a' b c=a*3.14 d=c*b e f=c/14*e

20 26.7100 0.08 8.4 2.0 1.2

2533.4

100 0.10 10.5 2.0 1.5

32 42.2100 0.13 13.3 2.0 1.9

4.6 4.6

note assume 14 sq.m per ltr

assume 2 coat

23

1.1 WATER SIDE

1.1.3.10 Assumable Items-BMS System I/O Point

List out main equipments from all service take off qty.

Identify the BMS control equipments from drawing/specification/schedule

Arrive the I/O point of equipments as per specification.

Finalize the qtyRecord the total I/O qty in hard/xls copy

24

S.No Item DescriptionNo Of Item in

NosDI DO AI AO

No of I/O

pointsNo Of Unit

Total No of

I/O points

1 Chiller 4 3 8 3 14 4 56

2 SCHWP 4 3 1 7 1 12 4 48

3 PCHWP 4 3 1 5 9 4 36

4 CHW Prs 1 3 1 4 1 4

5 Parking Fresh fans 25 7 2 9 25 225

6 Parking Exh fans 10 7 2 9 10 90

1.1.3.10 Assumable Items-BMS System I/O Point

6 Parking Exh fans 10 7 2 9 10 90

7 FCU 33 2 4 1 7 33 231

8 Waste pump 2 4 4 2 8

9 Water Pumps 6 3 3 6 18

10 Fire pumps 1 4 1 5 1 5

11 FM200 1 2 2 1 2

12 Water Tanks 4 2 2 4 8

13 MV panel 2 5 5 2 10

14 Transforemer Room 1 3 3 1 3

25

1.2 AIR SIDE

1.2.1 Countable Items

Count qty of items by tag no wise/capacity wise from the drawing and schedule.



Find out difference in qty.


Basic unit of measurement – nos

26

1.2 AIR SIDE

1.2.2 Measurable Items

Measure qty of items size wise from the drawing.






Basic unit of measurement – meters,sq.m

27

1.2 AIR SIDE

1.2.2.1 Measurable Items- GI/Pre insulated Ducting

Measure qty of items size wise and duct type wise from the drawing.


Find out Surface area of duct from the perimeter of duct.





28

Duct Size in mm

Gauge

thick in

mm

Duct Length

in m

Perimeter

in m

Duct

Area(Sq.m)

W H a b=2*(w+h)/1000

c=a*b

200 400 0.6 100 1.20 120.0

250 300 0.6 150 1.10 165.0

1.2.2.1 Measurable Items- GI/Pre insulated Ducting

300 300 0.6 200 1.20 240.0

29

1.2 AIR SIDE

1.2.3 Assumable Items

List of out the assumable items.

Connect these items to primary measure/Count items qty.

Calculate the qty from primary items qty respectively.


Compare the takeoff qty with BOQ qty(if avail)

Finalize the qty

Basic unit of measurement – nos,liters,meters,sq.m

30

1.2 AIR SIDE

1.2.3 .1Assumable Items-Duct Thermal Insulation

List out size wise duct take off qty.


Arrive and Segregate the duct insulation qty based on locations.(exposed or conditioned)



Finalize the qty

31

1.2.3 .1Assumable Items-Duct Thermal Insulation

Duct Size in mm Type Of Duct Insulation

Thick in mm

Duct Length

in m Perimeter in m

Duct

insulation

Area(Sq.m)

W H a b=2*(w+h)/1000 c=a*b

200 400 SAD 50 100 1.2 120.0

250 300 RAD 50 100 1.1 110.0

300 300 EAD 25 100 1.2 120.0

500 600 RAD 25 100 2.2 220.0

500 550 EAD 25 100 2.1 210.0

note assume condition area 25 mm thick

assume exposed area 50 mm thick

32

1.2 AIR SIDE

1.2.3.2 Assumable Items-Duct Acoustic Insulation

List out equipment qty with size of duct connected to equipment.


Arrive the duct insulation qty based.



Finalize the qty

33

1.2.3.2 Assumable Items-Duct Acoustic Insulation

Duct Size in mm Type Of

Equipment No of side

Qty of

equipment in

no

Insulation Thick

in mm

Duct Length

in m

Perimeter in

m

Area of

insulation Sq.m

W H a b c d=2*(w+h)/1

000

e=a*b*c*d

500 500 AHU 2 10 25 3 2 120.0

450 300 FAHU 2 5 25 3 1.5 45.0

300 300 FCU 1 15 25 3 1.2 54.0

250 250 Fan 2 5 25 3 1 30.0

note assume condition area 25 mm thick

assume insulation lengtho 3 mtr

34

1.2 AIR SIDE

1.2.3.3 Assumable Items-Duct Cladding

Indentify the requirement of cladding on duct insulation as per speciation.

Arrive the qty of cladding(sq.m) over duct insulation.


Compare the takeoff qty Compare the takeoff qty with BOQ qty if available and finalize the qty.

Application In generalCladding in Exposed area duct insulation thick 50mm

35

Duct Size in mm Insulation

thick in mm

Duct Size with insulation in

mm Duct Length in m Perimeter in m

Area

of

claddin

g Sq.m

W H a W' H' b c=2*(w'+h')/1000 d=c*b

500 500 50 550 550 25 2.2 55.0

450 300 50 500 350 50 1.7 85.0

1.2.3.3 Assumable Items-Duct Cladding

450 300 50 500 350 50 1.7 85.0

300 300 50 350 350 30 1.4 42.0

250 250 50 300 300 45 1.2 54.0

note assume insulation thick exposed 50 mm

36

1.2 AIR SIDE1.2.3.4 Assumable Items-Insulation vapor barrier

List out Duct qty size wise “with insulation” from the take off qty.

Find out duct surface area

Arrive the qty of vapor barrier from the surface area.


Finalize the qty

37

1.2.3.4 Assumable Items-Insulation vapor barrier


Thick in mm


mm

Duct Length in

m Perimeter in m

Surface

Area(Sq.

m)

Vapour Barrier-

ltr(2sq/ltr/coat)

W H W' H' a b=2*(w’+h’)/1000 c=a*b d=c/2*2 coat

200 400 50 250 450 100 1.40 140.0 140.0

250 300 50 300 350 150 1.30 195.0 195.0

300 300 50 350 350 200 1.40 280.0 280.0

assume thick of insulation 50mmNote

38

1.2 AIR SIDE1.2.3.5 Assumable Items-Insulation Adhesive Glue

List out Duct qty size wise “with insulation” from the take off qty.

Find out Duct surface area

Arrive the qty of Glue from the surface area.


Finalize the qty

39

1.2.3.5 Assumable Items-Insulation Adhesive Glue


Thick in mm


mm

Duct Length in

m

Perimeter in

m

Surface

Area(Sq.m)

Glue-

ltr(5sqm/ltr)

W H W' H' a b=2*(w+h)/100

0

c=a*b h=f/5

200 400 50 250 450 100 1.40 140.0 28.0

250 300 50 300 350 150 1.30 195.0 39.0 250 300 50 300 350 150 1.30 195.0 39.0

300 300 50 350 350 200 1.40 280.0 56.0


40

1.2 AIR SIDE1.2.3.6 Assumable Items-Self adhesive tape

List out duct qty size wise “with insulation” from the take off qty.


Arrive the qty of self adhesive tape from the surface area & length of pipe.


Finalize the qty

41

1.2.3.6 Assumable Items-Self adhesive tape


Thick in mm


mm

Duct Length in

m

Perimeter in

m

Surface

Area(Sq.m)

Al foil 3"

in roll(50

mtr/roll)

W H W' H' a b=2*(w+h)/100

0

c=a*b j=(a/1.2*b)+(

a*4))/50

200 400 50 250 450 100 1.40 140.0 10

250 300 50 300 350 150 1.30 195.0 15

300 300 350 350 200 21 300 300 50 350 350 200 1.40 280.0 21


42

1.2 AIR SIDE1.2.3.7 Assumable Items-Insulation Canvas cloth



Arrive the qty of Canvas cloth from the surface area.


Finalize the qty

43

1.2.3.7 Assumable Items-Insulation Canvas cloth


Thick in mm


mm

Duct Length in

m

Perimeter in

m

Surface

Area(Sq.m)

Oven cloth

30 yard

roll(70

sq.m/roll)

W H W' H' a b=2*(w+h)/100

0

c=a*b i=f/70

200 400 50 250 450 100 1.40 140.0 2.0 200 400 50 250 450 100 1.40 140.0 2.0

250 300 50 300 350 150 1.30 195.0 2.8

300 300 50 350 350 200 1.40 280.0 4.0


44

1.2 AIR SIDE1.2.3.8 Assumable Items-Vibration pad/Vibration hanger

List out main equipments qty by type of installation from the take off .

Find vibration pad and hanger qty/unit

Arrive the total qty


Finalize the qty

45

ItemCeilng mount

qty in nos

Floor mount

qty in nos

Vibration Pad

qty/unit in no

Toltal

Vibration Pad

qty/Unit in

no

Hanger qty/Unit

in no

Total hanger

qty/Unit in no

a a b c=a*b d e=a*d

Fans 5 10 0 4 20

1.2.3.8 Assumable Items-Vibration pad/Vibration hanger

Fans 5 10 0 4 20

FCU 5 10 0 4 20

AHU 5 15 10 150 4 20

note per unit 4 hanger

per unit 10 vibration pad

46

1.2 AIR SIDE

1.2.3.9 Assumable Items-Duct Flexible Connector

List out equipment qty with size of duct connected to the equipment.

Note down the size of flexible connector as per specification ,drawing ,BOQ.

Arrive the duct flexible connector.



Finalize the qty

47

Duct Size in mm Type Of

Equipment No of side

Qty of

equipment in

no

Perimeter in m

Length of

flexible

connector in m

W H a b d=2*(w+h)/1000 e=d

500 500 AHU 2 10 2 2

450 300 FAHU 2 5 1.5 1.5

300 300 FCU 1 15 1.2 1.2

250 250 Fan 2 5 1 1

1.2.3.9 Assumable Items-Duct Flexible Connector

note assume size of flexible connector 4"x6"4"

48

1.2 AIR SIDE

1.2.3.9 Assumable Items-Duct Supports


Find the supports distance by specification and drawing.

Arrive the supports qty size wise from the support distance.

Compare the takeoff qty with BOQ qty (if available.)

Finalize the qty

49

Duct size in mm

length

except roof

mtr

Roof Length

in mtr

No of floor

support in

no

No of roof

support in no

Angle/support

- 40x4xx3mm

in mtr

Angle-

40x40x3mm

in mtr

C-channel

75x40x5mm/

support in

mtr

C-channel

75x40x5m

m/support

in mtr

Ms Plate

/support

in no

W H a b c d e f=c*e g h=d*g i=d*2

500 500 100 25 50 12.5 0.7 35 1.15 14.38 25

600 450 75 15 37.5 7.5 0.8 30 1.3 9.75 15

400 450 65 10 32.5 5 0.6 19.5 1 5.00 10

note assume roof duct support spacing 2m

assume other than roof duct support spacing 2m

assume 2 MS plate/support

1.2.3.9 Assumable Items-Duct Supports

50

qty take off presentation-hvac

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