7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 1/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 1284cfm

 A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.0**

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

14 Feet

C. Fittings Equivalent Feet of traight DuctDec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 1 * *

$aeff 1 40 40

El5o- 60 2 1* 30

$otal !"

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

14 7* $%

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.0** 86 '.'"

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal( in. -) ( in. -) ( in. -)

$ype of <nit= )all *ounted +lit #,+e

+ocation= -oof Dec /-F01

<nit Deination= 2 3 1

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 2/19

0.046 0.61 '.%

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 3/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 116/cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.0**

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

14 Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 1 * *

$aeff 1 40 40

El5o- 60 2 1* 30

$otal !"

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

14 7* $%

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.0** 86 '.'"

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.046 0.61 '.%

$ype of <nit= &acaged 2nit #,+e

+ocation= First Floor /F011

<nit Deination= &2 3 11

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 4/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 11*8cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.0**

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

14 Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 1 * *

$aeff 1 40 40

El5o- 60 2 1* 30

$otal !"

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

14 7* $%

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.0** 86 '.'"

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.046 0.61 '.%

$ype of <nit= &acaged 2nit #,+e

+ocation= First Floor /F01'

<nit Deination= &2 3 1'

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 5/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 4330cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.02/

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

"1 Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 4 * 20

$aeff 4 40 1/0

El5o- 60 * *0 2*0

$otal 45'

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

*1 430 4$1

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.02/ 481 '.15

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.12* 0.61 1.'4

$ype of <nit= &acaged 2nit #,+e

+ocation= First Floor /F0%

<nit Deination= &2 3 %

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 6/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 681cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.0/*

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

55 Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 1 * *

$aeff 1 40 40

El5o- 60 4 1* /0

$otal 1'"

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

33 10* 15$

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.0/* 138 '.'%

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.060 0.61 1.''

$ype of <nit= &acaged 2nit #,+e

+ocation= First Floor /F0$

<nit Deination= &2 3 $

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 7/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 1026cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.0/*

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

1! Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 1 * *

$aeff 1 40 40

El5o- 60 2 1* 30

$otal !"

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

17 7* %6

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.0/* 62 '.'

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.0/0 0.61 '.%!

$ype of <nit= &acaged 2nit #,+e

+ocation= First Floor /F0!

<nit Deination= &2 3 !

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 8/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 4*6cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.11

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

1' Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 1 * *

$aeff 1 40 40

El5o- 60 1 1* 1*

$otal '

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

10 /0 !'

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.11 70 '.'$

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.077 0.61 '.%%

$ype of <nit= Ceiling Concealed #,+e

+ocation= First Floor /F0"

<nit Deination= FC2 3 "

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 9/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 864cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.0/7*

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

14 Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 1 * *

$aeff 1 40 40

El5o- 60 2 1* 30

$otal !"

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

14 7* $%

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.0/7* 86 '.'

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.0/0 0.61 '.%!

$ype of <nit= &acage 2nit #,+e

+ocation= First Floor /F04

<nit Deination= &2 3

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 10/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 4260cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.02/

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

" Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 3 * 1*

$aeff / 40 240

El5o- 60 4 40 1/0

$otal 41"

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

*/ 41* 4!1

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.02/ 471 '.16

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.122 0.61 1.'5

$ype of <nit= &acage 2nit #,+e

+ocation= First Floor /F05

<nit Deination= &2 3 "

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 11/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 1313cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.0**

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

5! Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 2 * 10

$aeff 3 40 120

El5o- 60 3 1* 4*

$otal 1!"

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

37 17* 616

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.0** 212 '.16

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.117 0.61 1.'5

$ype of <nit= &acaged 2nit #,+e

+ocation= First Floor /F01

<nit Deination= &2 3 4

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 12/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) *3/0cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.023

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

1'1 Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition * * 2*

$aeff 6 40 3/0

El5o- 60 * 70 3*0

El5o- 4* 2 3* 70

$otal $'"

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

101 80* %'

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.023 60/ '.61

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.208 0.61 1.16

$ype of <nit= &acaged 2nit #,+e

+ocation= Ground Floor /G04

<nit Deination= &2 3 6

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 13/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) //*0cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.021

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

15$ Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 4 * 20

$aeff 13 40 *20

El5o- 60 4 70 280

$otal $6'

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

138 820 %"$

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.021 6*8 '.6'

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.201 0.61 1.11

$ype of <nit= Ceiling Concealed #,+e

+ocation= Basement

<nit Deination= FC2 3 1

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 14/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 2*20cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.03/

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

65 Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 4 * 20

$aeff 3 40 120

El5o- 60 1 1* 1*

$otal 1""

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

23 1** 1!$

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.03/ 178 '.'

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.0/4 0.61 '.%!

$ype of <nit= Ceiling Concealed #,+e

+ocation= Ground Floor /G01 7 G06

<nit Deination= FC2 3 6

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 15/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 4637cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.02*

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

1'4 Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition / * 30

$aeff 10 40 400

El5o- 60 / *0 300

$otal !5'

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

104 730 $54

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.02* 834 '.61

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.206 0.61 1.16

$ype of <nit= &acaged 2nit #,+e

+ocation= Ground Floor /G05

<nit Deination= &2 3 1

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 16/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 11/0cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.0*/

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

1' Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 1 * *

$aeff 1 40 40

El5o- 60 1 1* 1*

$otal '

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

10 /0 !'

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.0*/ 70 '.'4

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.036 0.61 '.%"

$ype of <nit= Ceiling Concealed #,+e

+ocation= Ground Floor /G0"

<nit Deination= FC2 3 5

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 17/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 4100cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.028

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

1'! Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition * * 2*

$aeff 6 40 3/0

El5o- 60 / *0 300

$otal $"

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

107 /8* !%6

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.028 762 '.66

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.222 0.61 1.15

$ype of <nit= &acaged 2nit #,+e

+ocation= Ground Floor /G0

<nit Deination= &2 3 5

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 18/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 73*cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.0**

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

14 Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 2 * 10

$aeff 1 40 40

El5o- 60 2 1* 30

$otal $'

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

14 80 %4

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.0** 64 '.'"

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.0*2 0.61 '.%

$ype of <nit= Ceiling Concealed #,+e

+ocation= First Floor /F06

<nit Deination= FC2 3 4

7/26/2019 AC Duct Cal.

http://slidepdf.com/reader/full/ac-duct-cal 19/19

A. General Design Criteria:

 A.1 Elevation (ft) 2,047ft.

 A.2 Fan Capacity (cfm) 1034cfm A.3 Initial Dct !elocity (fpm) 800fpm

 A.4 Dct "ate#ial $ype %alvani&e' I#on eet

 A.* F#iction +o (in. -..) 0.0/

 A./ Dct i&e "eto' Eal F#iction

B. Length of straight duct for the farthest terminal

1' Feet

C. Fittings Equivalent Feet of traight Duct

Dec#iption antity Eivalent $otal

( ft ) ( ft )

$#anition 1 * *

$aeff 1 40 40

El5o- 60 1 1* 1*

$otal '

D. #otal Length

+ent of Dct Fittin E. $otal

( ft ) ( ft ) ( ft )

10 /0 !'

E. Duct tatic &ressure :

F#iction +o $otal +ent $otal ..

( in. -) ( ft ) ( in. -)

0.0/ 70 '.'4

F. Additional Friction Loss

Dec#iption antity $otal

( in. -)

Elect#ic Dct 9eate# 1 0.13

on' Attenato# 1 0.*0

!olme Dampe# 1 0.08

pply : ;et#n Ai# 1 0.20

$otal '.%1

G. #otal E(ternal tatic&ressure

Dct .. A''itional F.+. $otal

( in. -) ( in. -) ( in. -)

0.042 0.61 '.%"

$ype of <nit= Ceiling Concealed #,+e

+ocation= First Floor /F0

<nit Deination= FC2 3