Grizzly G0673, G0671, G0672 owner manual Performance Curve

4.Total your list, as shown in the example in Figure 38, to come up with your overall static pressure loss number for that line.

Note: Always account for a seasoned filter, so you don't end up with a system that only works right when the filter is clean.

Main Line

+G^\^YE^eZ#%(,Vi'% ################ %#,)%

Branch Line

)G^\^YE^eZ#%,*Vi&% ################ %#,*% );aZmE^eZ#'-Vi* ######################## &#)%%

Elbows/Branches

+)*ßN"7gVcX] ################################ %#('. ))*ß:aWdl ######################################## %#''*

Additional Factors

HZVhdcZY;^aiZg ################################ &#%%%

Total Static Pressure Loss 4.444

Figure 38. Example list for totaling SP loss.

Note: When calculating static pressure loss to determine if multiple lines can be left open at the same time, only include the main line numbers once.

5.Compare the total static pressure loss for that line to the closest CFM given in the

Performance Curve section on the Machine Data Sheet (located toward the front of this- manual).

Example: go to the Model G0671 Data Sheet

Performance Curve section (see Page 4) or see Figure 39 and find 4.4 on the Pressure axis, then go up the CFM axis to the closest value—approximately 3550 CFM, as shown in Figure 39.

The 3550 CFM (Figure 39) for the static pres- sure loss of the line connected to the router is well above the 220 CFM requirement of that machine.

-32-

)%%%		Performance Curve
(,*%
(*%%
('*%
(%%%
',*%
'*%%		Closest
''*%
'%%%		CFM
&,*%		(3550)
&*%%
&'*%
&%%%			4.4 SP Loss
,*%
*%%
'*%
%
CFM	%	&#% '#%	(#% )#% *#% +#% ,#% -#% .#% &%#%	&&#%	&'#%	&
			STATIC PRESSURE (Inch/H2O)

Figure 39. CFM for static pressure loss of line connected to G0671 dust collector & router.

—If the CFM for your static pressure loss is above the requirement of the machine connected to the end of that branch line, then dust collection will most likely be successful. Congratulations! You've just designed your own dust system. Refer to the Accessories section on Page 35 to start buying the components necessary to make your system a reality.

—If the CFM for your static pressure loss is below the requirement of the machine, then that line will not effectively collect the dust. You must then modify some of the factors in that line to reduce the static pressure loss. Some of the ways to do this include:

1)Installing larger duct, 2) reducing amount of flexible duct used, 3) increasing machine dust port size, 4) moving machine closer to dust collector to eliminate duct length, and

5)reducing 90˚ elbows or replacing them with 45˚ elbows

G0671/G0672/G0673 Dust Collector