Minimum CFM at Exhaust Port: 200 CFM
DO NOT confuse this CFM recommendation
with the rating of the fume extractor. To deter-
mine the CFM at the exhaust port, you must
consider these variables: (1) CFM rating of
the fume extractor, (2) hose type and length
between air filters (MERV 15+, HEPA, Carbon,
etc.) and the machine, (3) number of branches
or wyes, and (4) amount of other open lines
throughout the system. Explaining how to cal-
culate these variables is beyond the scope of
this manual. Consult an expert or purchase a
dedicated CNC laser "how-to" book.
If extraction outlet ducting is routed out-
side, install a metal screen on duct opening
to prevent invasive animals from nesting in
extraction system.
Grizzly Industrial recommends connecting
extraction fan to a dedicated power circuit
independent from the Model G0911–G0914
to prevent interrupting power.
Figure 23. Extraction fan inlet and outlet ports.
Upper Exhaust Port
Lower Exhaust Port
Exhaust Port Adapter
Figure 22. Installing exhaust port adapter.
-26-
Model G0911–G0914 (Mfd. Since 05/21)
3. Use (2) 6" hose clamps to connect and secure
one end of ducting to exhaust port adapter on
machine, then connect and secure other end
of ducting to inlet port of extraction fan (see
Figure 23).
4. Use (1) 6" hose clamp to connect and secure
remaining ducting to extraction fan outlet port
(see
Figure 23).
To install extraction fan:
1. Insert exhaust port adapter into upper and
lower exhaust ports on rear of machine and
secure with (1) 6" hose clamp on upper
exhaust port (see
Figure 22).
2. Place extraction fan, electrical cord, and
ducting in a location that prevents tripping
hazards, duct kinks, and abrasive damage.
Note: Ensure ducting is kept as straight as
possible for maximum efficiency.
7. Connect extraction fan to an available 110V
grounded power source separate from Model
G0911–G0914 power connection circuit.
IMPORTANT:
Extraction fan has a high cur-
rent draw and may be required to operate
on separate circuit from the Model G0911–
G0914.
Always refer to a certified electrician
for electrical circuit requirements, if needed.
5. Route and connect ducting to fume extrac-
tor that utilizes a MERV 15+ or HEPA filter
(see
Additional Safety for Toxic Fumes
Generated by Laser Cutting on Page 15).
Secure ducting to fume extractor using (1) 6"
hose clamp.
6. Secure extraction fan in accessible location
where ducting can be removed and cleaned
during maintenance.
Inlet
Port
Outlet
Port
Summary of Contents for G0911
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