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A. PERFORMING PREVENTATIVE MAINTENANCE
1. Disconnect the power to the unit.
2. Remove the intake screen by removing all Phillips head
screws around the edge. See FIGURE 9
3. Vacuum and scrape (if necessary) to remove the buildup
of dirt and debris. The motor(s) are permanently
lubricated and require no additional lubrication.
Reinstall the cover and intake grille.
4. Reconnect the power, and turn on after cleaning.
CAUTION: STAND CLEAR OF THE UNIT OR WEAR
SAFETY GOGGLES AS LOOSE DEBRIS MAY BE
PRESENT AND MAY EXIT THROUGH THE NOZZLE.
VIII. SERVICE
CAUTION: ELECTRIC SHOCK HAZARD Disconnect power
whenever servicing air curtain unit. More than one discon-
nect may be required to de-energize unit.
Any service performed on the Pass-Thru 6 air curtain
MUST be done by qualified personnel.
Berner air curtains require very little servicing. All parts are
easily accessible for periodic inspection and maintenance.
Units should be cleaned at least twice a year. Your particular
application (the amount of dirt and dust in the air) and location
of the unit(s) will determine how often your unit(s) will need
to be cleaned and serviced. All motors have permanently
lubricated, sealed, sleeve bearings and require no
maintenance.
A. FAN AND MOTOR REMOVAL
1. Disconnect power to the unit.
2. Remove the intake screen by removing all Phillips head
screws around the edge. See FIGURE 9
3. Unplug motor harness from motor and remove
necessary wiring.
4. Using a
/
" Allen wrench, loosen each set screw
1
8
attaching fan(s) to motor.
5. While holding the motor in place, loosen and
remove the motor clips.
6. Slide the fans toward the motor so that the ball
bearings on the outer fan shaft are exposed.
7. Slowly roll the motor out of the motor mount cradle
forward and down. The hubs of the fans are flexible
enough to allow the motor to move before the fans'
outer ball bearings pull out of the unit.
8. Reinstall in reverse order of removal.
.
.
-6-
3'
Counter
Exterior
Interior
FIGURE 8 - Air Flow Adjustment
Intake Grill
FIGURE 9
AIR
Discharge
Nozzle
12"
Wiring
Compartment
Cover
½" Knockout
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