mcquay duct sizer

Mcquay Duct Sizer is used for Duct Sizing in HVAC Industry

McQuay duct sizer
Mcquay duct sizer

To Download Software Click on Below Link

Download –Mcquay duct sizer

Duct designing with duct sizer software:

Duct Design Example

Step 1: Select the unit as I.P

Step 2: select 750F air at 50% RH and 1atm

Step 3: Flow rate = 5000 CFM

             Friction rate= = 0.08” wg/100’

Step 4: Take your data as required

Duct Sizing A-B

Q=5000CFM f= 0.08” wg/100’

Vmax form table = 2000 FPM

From software

Duct Sizer

V= 1288.8 FPM < 2000 Then Accepted

Duct A-B = 14’’ x 46’’

Duct Size B-C

Q=4000CFM f= 0.08” wg/100’

B-C = 14’’ x 38’’

Duct Size C-D

Q=3000CFM f= 0.08” wg/100’

C-D = 14” x 30’’

Duct Size D-E

Q=2000CFM f= 0.08” wg/100’

D-E = 14’’ x 22’’

Duct Size E -F

Q=1000CFM f= 0.08” wg/100’

E-F = 14’’ x 14’

 (Duct always manufactured with an even scale so 13’’ is taken to 14’’)

Duct Size F-G

Q=500CFM f= 0.08” wg/100’

F-G = 10’’ x 10’’

(When width is less than height in duct sizer, reduce the height so that width will increase to maintain A.R)

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mcquay duct sizer

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