Handleiding
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2017 © North American Kitchen Solutions
172 Reaser Court
Elyria, OH 44035
www.naksinc.com
Page 3 of 7
6. FAN INSTALLATION:
(a) WALL MOUNT: If wall mounted, provide an opening
sufcient for enclosing the curb cap. Securely fasten
to the wall through the cap. Fan breather tube
should be on the side of the fan at a 90° angle from
vertical. A wall mounting adapter option is available
from the manufacturer. On wall mounted models the
wall bracket is shipped with the fan.
(b) ROOF MOUNT: Roof exhausters should be mount-
ed on a roof curb suitable for the purpose, either
eld fabricated or prefab type. Prefab type curbs
are available as an accessory at extra cost from
the manufacturer. The fan should rest on the curb
as level as possible. When curb is not level (slightly
pitched on at roofs) the down spout drain tting
should be located on the lowest side of the curb.
Securely fasten the exhauster to the curb using a
minimum of 4 lag bolts - one centered each side.
7. CAUTION! Guards must be installed when the fan is
within reach of personnel or within eight (8) feet (2.5 m) of
working level or when deemed advisable for safety.
8. IMPELLER-ORIFICE ADJUSTMENT: Turn centrifugal
impeller by hand to make sure it rotates freely. If the
impeller hits the orice, adjust as follows:
For Duplex Split Pillow Block Bearings, three dimensional
adjustment is provided. Do not loosen all bolts at once.
Proceed with adjustments in one direction at a time to
minimize difculty. Horizontal movement for adjustment
is allowed by loosening the two bolts connecting the drive
brace (4) to the top and bottom ange of the drive base
(3) and by loosening the four bolts, two at each end, of
the drive base (3). Horizontal movement in the other
direction is allowed by loosening the four bolts securing
the bearing caps (6) to the drive base (3). After loosening
the appropriate bolts, the impeller can be repositioned to
insure that it does not strike the orice. Vertical adjustment
is allowed by loosening the set screw on the impeller hub
which allows the impeller to be moved vertically. Make
sure all bolts are securely tightened before applying
electrical power.
9. MOTOR - BELT TENSION ADJUSTMENT: The motor is
mounted directly to the slots on the Drive Base using the
four motor mount bolts. Belt tensioning is accomplished
by sliding the motor away from the fan pulley and then
tightening the motor mount bolts and nuts. Some sizes
use motor rails for certain motors.
Belt should depress its width when pressed rmly inward
at midway point between the pulleys.
10. CAUTION! Before proceeding, make sure electrical
service to fan is locked in the “OFF” position. Run wires
through the internal wiring post to the motor (or to the
disconnect switch). (Restaurant exhaust fans have wires
run through the wiring post to the exterior of the windband.)
11. All wiring should be in accordance with local ordinances
and the National Electric Code.
12. WARNING! Check voltage at the fan to see if it corresponds
with the motor nameplate. High or low voltage can
seriously damage the motor. Extra care should be taken
when wiring to motors since improper connections will
damage the motor and void the motor warranty.
13. WARNING! Do not operate at speeds higher than
shown in the catalog for this equipment. Apply power
momentarily and compare the impeller rotation with the
directional arrow. Operation in the wrong direction will
deliver air but may overload the motor to the extent of
blowing fuses or overload protection and could seriously
damage the motor. In the case of three phase motors, the
direction can be changed by interchanging any two of the
three motor leads. In the case of single phase motors, the
reversing instructions will appear on the wiring diagram in
the motor wiring compartment or on the motor.
MAINTENANCE
1. Under normal usage, no spare parts are expected to be
required for one year of operation. Recommended spare
parts are shown on page 5.
2. CAUTION! Before proceeding, make sure electrical
service to fan is locked in the “OFF” position.
WINDMILLING: Even when the power supply is locked
out, fans may cause injury or damage if the impeller is
subject to “windmilling” which is the turning of the impeller
and drive components due to a draft in the system. To
guard against this hazard, the impeller should be secured
to physically restrict rotational movement.
3. Units with Duplex Split Pillow Block Bearings are pre-
lubricated and do not require relubrication. Units with
pillow block bearings have grease ttings and, under
normal operating conditions, will not need relubrication for
3 to 5 years. If relubrication is required, use a grease
conforming to NLGI No. 2. CAUTION! Lubricating
bearings with a high pressure gun can blow bearing seals
and overll the bearing with grease. This condition can
result in excessive churning and overheating. For normal
operating conditions it is standard practice to ll 30% of
the bearing void with grease. Do not over lubricate.
4. Motor bearings are pre-lubricated. Consult information
printed on the motor for lubrication instructions.
5. REGULAR MAINTENANCE: Determined by the condition
of the air passing through the fan, regularly scheduled
inspection of all fan parts establishes a good maintenance
routine. When the air is clean, maintenance can be as
infrequent as once a year. When air is contaminated with
grease vapors from cooking operations, maintenance
may be required as often as once a week. Regular
maintenance should include inspection and cleaning of all
fan parts to remove all grease and other foreign particles
from the entire impeller surface including blades and front
and back plates.
WARNING! Care must be taken when cleaning the
impeller to remove grease and other foreign particles.
Damage to the impeller can occur if it is hit or if pressure
is applied causing the impeller to be distorted. Either case
can cause serious vibration and damage to the fan.
Bekijk gratis de handleiding van NAKS 28B-2400-FF, 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.
Productinformatie
| Merk | NAKS |
| Model | 28B-2400-FF |
| Categorie | Afzuigkap |
| Taal | Nederlands |
| Grootte | 846 MB |
