NAKS 20D-1200-FF Manual

NAKS Emhætte 20D-1200-FF

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Side 1/7

RECEIVING AND INSPECTION

Immediately upon receipt of a shipment, carefully inspect for

damage and shortage. Turn impeller by hand to see that it

turns freely and does not bind. If any damage and/or shortage

is detected or suspected, the carrier must be asked to conduct

an inspection. The consignees representative should not accept

shipment without a notation on the delivery receipt indicating items

not delivered or apparent extent of damage.

When a shipment is opened and damage is found which was not

evident externally (concealed damage), it is mandatory that the

consignee request an immediate inspection by the carrier. Report

damage to the carrier within 15 days. Failure to report damage

within the above time limit will cause rejection of a claim.

HANDLING

When handling fans and their accessories, always use equipment

and methods that will not cause damage. Fans should be lifted

using slings and padding or spreaders to avoid damage.

CAUTION! Always make sure that all lifting and handling equipment

and techniques conform to current safety standards.

Avoid lifting fans in a way that will bend or distort fan parts. Never

pass slings or timbers through the orices of fan.

CAUTION! Do not lift by the fan hood. Fans with special coatings

or paints must be protected in handling to prevent damage.

STORAGE

Fans are protected against damage during shipment. If they

cannot be installed and put into operation immediately upon receipt

certain precautions are necessary to prevent deterioration during

storage. Responsibility for integrity of fans and accessories during

storage must be assumed by the user. The manufacturer will not

be responsible for damage during storage. These suggestions are

provided solely as a convenience to the user, who shall make his

own decision as to whether to use any or all of them.

INDOOR: The ideal storage environment for fans and accessories

is indoors, above grade, in a low humidity atmosphere which

is sealed to prevent the entry of blowing dust, rain, or snow.

Temperatures should be evenly maintained at between 70°F and

105°F (wide temperature swings may cause condensation and

“sweating” of metal parts). Windows should be covered to prevent

temperature variations caused by sunlight. Provide thermometers

and humidity indicators at several points and maintain the

atmosphere at 40% relative humidity, or lower.

It maybe necessary to use trays of renewable desiccant or portable

dehumidier to remove moisture from the air in the storage

enclosure.

Thermostatically controlled portable heaters (vented to outdoors)

may be required to maintain even temperatures inside the

enclosure.

CAUTION! Provide re extinguishers, or re alarms, or emergency

response communication to protect building and equipment against

re damage. Be sure that building and storage practices meet all

local, state and federal re and safety codes.

The following fans or accessories must be stored indoors, in a

clean dry atmosphere:

a. Any fan that is protected by a cardboard carton.

b. Spare wheels or propellers.

c. Boxes, bags or cartons of hardware.

d. Curbs

e. Dampers

Remove any accumulations of dirt, water, ice or snow and wipe

dry before moving indoor storage. Allow cold parts to reach room

temperature to avoid “sweating” of metal parts. Open boxes

or cartons. Remove any accumulated moisture; if necessary

use portable electric heaters to dry parts and packages. Leave

coverings loose to permit air circulation and to permit periodic

inspection.

Rotate wheels or propellers by hand to distribute bearing grease

over the entire bearing surfaces.

Store at least 3 ½” off the oor on wooden blocks covered with

moisture proof paper or polyethylene sheathing. Provide aisles

between parts and along all walls, to permit air circulation and

space for inspection.

OUTDOOR: Fans designed for outdoor use may be stored

outdoors, if absolutely necessary. The storage area should be

reasonably level and drained or ditched to prevent accumulation

of water. Fencing and lighting for security are desirable. Roads

or aisles for portable cranes and hauling equipment are needed.

Consider the use of drift fencing to minimize accumulation of

blowing snow or dirt.

The following fans may be stored outdoors, if dry indoor storage

space is not available:

a. Fans intended for outdoor use that are crated in wood.

b. Wall fans installed in wall housings.

All fans must be supported on wooden blocks or timbers above

water or normal snow levels. Provide enough blocking to prevent

settling into soft ground. Fans should be set in place using the

directional arrow markings on the crate as a guide.

Locate pieces far enough apart to permit air circulation, sunlight,

and space for periodic inspection. Place all parts on their supports

so that rain water will run off, or to minimize water accumulation. Do

not cover parts with plastic lm or tarps-these cause condensation

of moisture from the air passing through heating and cooling

cycles.

Fan wheels and propellers should be blocked to prevent spinning

caused by strong winds.

Read and Save These Instructions

NAKS Form 613157

INSTALLATION & MAINTENANCE INSTRUCTIONS

Direct Drive Exhaust Fans

______________________________________________________________________________________________________________________________

2017 © North American Kitchen Solutions

172 Reaser Court

Elyria, OH 44035

www.naksinc.com

Page 1 of 7

INSPECTION AND MAINTENANCE DURING STORAGE

Inspect fans and accessories at least once per month, while in

storage. Log results of inspection and maintenance performed. A

typical log entry should include the following:

a. Date

b. Inspector’s Name

c. Name of Fan

d. Location

e. Condition of Paint or Coating

f. Is moisture present?

g. Is dirt accumulated?

h. Corrective steps taken?

If moisture or dirt accumulations are found on parts, the source

should be located and eliminated. Fans should be rotated at each

inspection by hand ten to fteen revolutions to redistribute the

motor and bearing lubricant.

If paint deterioration begins, consideration should be given to

touch-up or repainting. Fans with special coatings may require

special techniques for touch-up or repair.

Machined parts coated with rust preventive should be restored to

good condition promptly if signs of rust occur. The most critical

items are pulleys, shafts and bearing locking collars. At the rst

sign of rusting on any of the above parts, remove the original

rust preventive coating with petroleum solvent and clean lint-free

cloths. Polish any remaining rust from surfaces with crocus cloth

or ne emery paper and oil. Do not destroy the continuity of the

surfaces. Wipe clean with lint-free cloths and recoat surfaces

evenly and thoroughly with Tectly 506 (Ashland Oil Company) or

equal. For hard to reach internal surfaces or for occasional use,

consider using Tectly 511M Rust Preventive or WD40 or equal.

REMOVING FROM STORAGE

As fans are removed from storage to be installed in their nal

location, they should be protected and maintained in similar

fashion, until the fan equipment goes into operation.

INSTALLATION

1. CAUTION! This unit has rotating parts and safety precautions

should be exercised during installation, operation and

maintenance.

2. WARNING! If gases, other than clean air, are to be

exhausted using the fan, then the user bears the

responsibility of determining that the fan is appropriate

and safe for the application.

3. WARNING! Do not use in hazardous environments

where the fan’s electrical system could provide ignition to

combustible or ammable materials, unless unit is built

specically for the environment.

4. COMMERCIAL KITCHEN EXHAUST APPLICATIONS

Ventilators should be installed in accordance with the

requirements of the National Fire Protection Association

Bulletin NFPA96 “Vapor Removal From Cooking Equipment”

taking specic note of the following:

a. Ducts terminating into the base of an up-discharge

exhaust fan must be constructed of carbon steel not less

than 16MSG (67.47 mm) and extend a minimum of 18”

(457 mm) above the roof surface.

b. Air velocity through the duct not less than 1500 FPM

(7.620 m/s).

c. A minimum of 40” (1016 mm) clearance be maintained

between the exhaust discharge and any roof surface. (To

comply, size 80 to 135 require 24” [610 mm] roof curb.

Size 150 to 200 require 18” [457 mm] roof curb.)

5. FAN INSTALLATION:

WALL MOUNT: If wall mounted, provide an opening

sufcient 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.

ROOF MOUNT: Roof exhausters should be mounted on a

roof curb suitable for the purpose, either eld fabricated or

prefab type. (Prefab type available as an accessory at extra

cost.) 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 lowest side of

curb. Securely fasten exhauster to curb using a minimum of

4 lag bolts - one centered each side.

6. CAUTION! Guards must be installed when fan is within

reach of personnel or within eight (8) feet (2.5 m) of working

level or when deemed advisable for safety.

7. IMPELLER-ORIFICE ADJUSTMENT: Turn centrifugal

impeller by hand to make sure it rotates freely. If impeller

hits inlet orice, adjust as follows: Loosen four (4) nuts inside

motor enclosure. Adjust motor laterally to equalize clearance

on all sides of impeller. Tighten four (4) nuts.

8. ELECTRICAL CAUTION: Before proceeding, make sure

electrical service to fan is locked in “OFF” position. Run

wires through the internal wiring post to the motor, to safety

disconnect switch if used. (Restaurant exhaust fans have

wires through breather tube.)

9. All wiring should be in accordance with local ordinances and

the National Electric Code.

FOR EC MOTOR WIRING - CONTACT FACTORY

10. 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 two or three speed motors since improper connections will

damage motor and void motor warranty.

11. Apply power momentarily and compare the rotation of the

impeller with the directional arrow on fan. WHEEL ROTATION

IS CLOCKWISE AS VIEWED FROM TOP OF FAN.

WARNING! Do not operate at speeds higher than shown in

catalog for this equipment. Operation in the wrong direction

will deliver air but will 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.

12. GREASE TROUGHS AND CURB HINGES are available as

optional accessories. Installation instructions are shipped

with the accessories.

______________________________________________________________________________________________________________________________

172 Reaser Court

Elyria, OH 44035

www.naksinc.com

Page 2 of 7

Produkt Specifikationer

Mærke:	NAKS
Kategori:	Emhætte
Model:	20D-1200-FF

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