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B-4
MANUAL OPERATION
To control the system manually, proceed as follows.
1. Press MAN (manual). See Figure B.1.
2. After finishing the job, press AUTO (automatic).
See Figure B.1.
ATTENTION
• Do NOT turn off the main switch.
• Make sure power supply and com-
pressed air are available after working
hours.
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OUTLET NOzzLES
To optimize system performance of the CIRCULA-
TOR, position nozzles and air flow as follows:
• Direct the nozzles at the welding fume layer without
obstruction.
• Direct the nozzles to the section of the facility where
the highest concentration of welding fume occurs.
• Set the correct throw by regulating the airflow.
(Throw = Distance that pressurized air travels)
The airflow volume can be regulated by adjusting as
follows.
1. Fan speed is automatically regulated
2. Outlet nozzle damper (nozzles are adjustable)
See Figure B.2 and B.3 for more guidelines to
achieve a proper air circulation.
Throw
Airflow/Nozzle
43 ft.
(13.1m)
130 ft.
(40m)
OPERATION
Total Airflow
393 CFM
2353 CFM
(667 m
/h)
(3997 m
3
885 CFM
5300 CFM
(1500 m
3
/h)
(9000 m
CIRCULATOR
The throw can be adjusted by the potentiometer FAN
SPEED 0-100%. The fan speed ranges between
30Hz and 50Hz. The maximum throw is 130 ft. (40m)
at an air velocity of 1 to 1.6 ft/s (0.3 to 0.5m/s).
It is recommended to not over-dimension the capaci-
ty, but to strive for a proper air circulation at the low-
est possible fan speed.
• Adjust the nozzles to the best position. See Figure
B.2.
• Regulate the correct throw by adjusting the poten-
tiometer. If necessary, regulate the air volume con-
trol per nozzle. See Figure B.3.
Fan Speed
1200 RPM
/h)
3
3000 RPM
3
/h)
B-4
Frequency
20Hz
50Hz
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