-6-
XI. SERVICE
CAUTION: ELECTRIC SHOCK HAZARD Disconnect power
whenever servicing unit. More than one disconnect may
be required to de-energize unit.
Any service performed on the
ARCHITECTURAL HIGH PERFOR-
MANCE 10
Series air door
MUST
be done by qualified personnel.
Berner air doors require very little servicing. All parts are eas-
ily accessible for periodic inspection and maintenance. Units
should be cleaned at least twice a year. Your particular applica-
tion (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.
Figure 11
X. MAINTENANCE AND CLEANING
CAUTION: ELECTRIC SHOCK HAZARD Disconnect power
whenever servicing unit. More than one disconnect may
be required to de-energize unit.
Keep your air door operating at peak efficiency by cleaning
the blower wheels, motor(s) and intake grille. Buildup of dust
on the blower wheels can cause vibration, noise and excessive
wear on the motor bearings. The frequency of cleaning will
depend on the environment where the unit is operating.
Dirty, dusty or greasy environments could require a cleaning
schedule of once every two months. If the environment is
not that dirty, the unit(s) should be scheduled for cleaning a
minimum of once every (6) months. To access the interior of
the unit:
1.
Disconnect the power to the unit.
2. Remove the intake grille by removing the locking screw on
each end of the unit. Lift the intake grille up and then towards
you.
See Figure 11.
3. Remove the bottom access panel. Remove Phillips head
screws on the bottom of the unit. Vacuum and scrape (if
necessary) to remove the build-up of dirt and debris. The
motor(s) are permanently lubricated and require no additional
lubrication. Re-install the cover and intake grille.
4. Switch the power on after cleaning.
CAUTION: STAND CLEAR
OF THE UNIT OR WEAR SAFETY GOGGLES AS LOOSE DEBRIS
MAY BE PRESENT AND MAY EXIT THE NOZZLE.
Intake Grill
Grill Locking Screws
