Berner Architectural Recessed 12 handleiding

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Berner

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Handleiding

-9-

VIII. 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 Recessed Series

air curtain MUST be done by qualied 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. To remove the blower module and clean or replace the fans

and motor:

1. Disconnect and lockout power to the unit.

2. Remove the bottom access cover by removing (4) Phil-

lips head machine screws located at the cover’s corners.

See Figure 7.

3. If desired, the nozzle surround may be removed to

provide more working room. To remove the nozzle

surround, remove the (4) Phillips head machine screws

from the corners. The Intelliswitch® ribbon cable must

also be disconnected from the back of the display circuit

board before the nozzle surround can be set aside.

4. Disconnect motor power wires/harness from motor.

5. If the unit has electric heat, the heaters need to be

disconnected from supply wiring. Each fan housing will

have a heating element on both of its sides, spanning

the inlet venturi. Each heating element will have (2) ¼”

quick disconnects for power supply wiring. In addition,

the heating elements located on the inside of the mod-

ule will have (2) ¼” quick disconnects for the auto reset

thermal cutouts. Label and separate all of those connec-

tions. See Figure 8.

6. Using a 5/16” hex driver, loosen and remove the (4) self

drilling screws that hold the blower plate to the frame of

the unit. Remove the two screws at the top of the prod-

uct last, as after they are removed, the module will be

free to drop out of the cabinet. See Figure 9 for location

of all screws.

7. Wearing protective gloves, hold the module by the mo-

tor, and rotate the module top forward and drop it down

through the bottom of the unit. See Figure10.

8. To remove the fans and/or motor, loosen the set screws

in the fan wheel hubs by using a 5/32” Allen wrench that

is at least 152.4mm long. The set screw can be accessed

up through the fan’s discharge.

9. Next, remove the two blower housings by removing the

(8) screws that attach the fan housings to the blower

plate. When the fan housings are free, slide them and

their fan wheels o to each side.

10. Remove the motor clips from the motor mounts, discon-

nect the motor ground wire if necessary, and lift the

motor up and out of its cradle.

11. Reinstall in reverse order of removal.

Figure 8

Figure 9

Bekijk gratis de handleiding van Berner Architectural Recessed 12, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.