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OPERATOR MANUAL

IMPORTANT INFORMATION, KEEP FOR OPERATOR

888-994-7636, fax 888-864-7636

uniedbrands.net

PART NUMBER PP MNL2207, REV. A (08/23)

This manual provides information for:

VENTILATION SYSTEMS

THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE. READ,

UNDERSTAND AND FOLLOW THE INSTRUCTIONS AND WARNINGS CONTAINED

IN THIS MANUAL.

FOR YOUR SAFETY Do not store or use gasoline or other ammable vapors

and liquids in the vicinity of this or any other appliance.

NOTIFY CARRIER OF DAMAGE AT ONCE It is the responsibility of the

consignee to inspect the container upon receipt of same and to determine

the possibility of any damage, including concealed damage. Avtec suggests

that if you are suspicious of damage to make a notation on the delivery

receipt. It will be the responsibility of the consignee to le a claim with the

carrier. We recommend that you do so at once.

Manufacture Service/Questions 888-994-7636.

RETAIN THIS MANUAL FOR FUTURE REFERENCE

NOTICE: Due to a continuous program of product improvement, Avtec reserves the

right to make changes in design and specications without prior notice.

NOTICE: Please read the entire manual carefully before installation. If certain

recommended procedures are not followed, warranty claims will be denied.

MODEL NUMBER _________________________

SERIAL NUMBER _________________________

INSTALLATION DATE ______________________

INSTALLATION INSTRUCTIONS

Avtec hoods are provided with adjustable hanging brackets designed to receive

1/2” threaded rod with a 1/2” nut and washer. Supporting rods must be

connected to all factory installed brackets. Recommended hanging height is 6’-

6” above nished oor for canopies. Low side wall ventilators should be installed

directly upon a Avtec base or on a re rated wall. If wall mounted, the bottom of

the vent should be 36” above nished oor.

ALL AVTEC VENTILATION SYSTEMS MUST BE INSTALLED IN ACCORDANCE

WITH NFPA-96, REMOVAL OF SMOKE AND GREASE-LADEN VAPORS FROM

COMMERCIAL COOKING EQUIPMENT.

BAFFLE FILTER (AF) SERIES

Model AF ventilators are listed by UL and are built in accordance of NFPA-96

for use with UL listed re extinguishing systems for duct hood protection. They

are available with or without an automatic re damper. They utilize UL classied

removable bafe lters to extract grease and provide a limited re barrier. The

canopy contains a hidden grease trough and removable cup. Surface, plenum

and duct collar re extinguishing systems may be factory supplied.

MODULAR GREASE EXTRACTORS (AX) SERIES

Model AX ventilators are listed by UL and are built in accordance of NFPA-96 for

use with UL listed re extinguishing systems for duct hood protection. They are

available with or without an automatic re damper. These models utilize high

velocity removable grease extractors. The canopy contains a hidden grease

trough and removable cup. Surface, plenum and duct collar re extinguishing

systems may be factory supplied.

FIGURE 1

FIGURE 3 FIGURE 4

HOOD FACE

T-MOLDING

C-CHANNEL

FIGURE 2

INSULATED

SUPPLY DUCT

FIRE DAMPER &

VOLUME CONTROL

DAMPER

FLUID WEL

EXHAUST DUCT

ACCESS

PANEL

FRONT OR BACK

NOTE: HOLES DRILLED THROUGH HOOD ANGLE BY

INSTALLER AFTER BRACKET ATTACHMENT

POINTS HAVE BEEN DETERMINED.

HOOD

ANGLE

OF HOOD

HANGER BRACKET DETAIL

HANGER ROD

PRE-DRILLED

HOLE, ACCEPTS

UP TO 1/2"ÿ ROD

5/16" BOLT

HOLE, ACCEPTS

PRE-DRILLED

NUT

HANGER ROD

S.S. NUT & BOLT

BY OTHERS

Information contained in this document is known to be current and accurate at the time of printing/creation. Reference our product line website for the most updated

2 OM-VENTILATION SYSTEMS

EXHAUST

DUCT IS

FLUID

WELDED

COLLAR

GREASE

TERMINATOR

GREASE TROUGH

CEILING

EXHAUST DUCTALL WELD

CONSTRUCTION

HING

40" MINIMUM

10' - 0" MINIMUM

IMPORTANT - READ FIRST - IMPORTANT

CAUTION: DO NOT ATTEMPT TO SERVICE THIS UNIT YOURSELF AS REMOVING COVERS

MAY CAUSE UNNECESSARY EXPOSURE TO DANGEROUS VOLTAGE.

CAUTION: NEVER CONNECT THE UNIT TO A POWER SOURCE WHILE STANDING IN

WATER. WET HANDS AND WET FLOORS SHOULD BE AVOIDED WHEN

CONNECTING ANY ELECTRICAL APPLIANCE TO A POWER OUTLET.

CAUTION: FANS MAY HAVE MULTIPLE POWER CONNECTIONS. MAKE SURE ALL FANS

ARE ISOLATED FROM POWER PRIOR TO PERFORMING MAINTENANCE.

AUTO WASH DOWN (AW) SERIES

Model AW ventilators are listed by UL and are built in accordance of NFPA-96 for use

with UL listed re extinguishing systems for duct hood protection. They are available

with or without an automatic re damper. These systems utilize a high velocity grease

extractor and an integral water wash system cleans the inside of the grease

extraction chamber either by manual activation of the Wash Start button or by a

programmable timer. The duration of the wash is electronically controlled. The

wash system is also activated by an electrical thermostat or a manual switch in

the event of a re condition. A surface re extinguishing system is required and

may be factory supplied.

CANOPIES

1. Check all local codes prior to installation. Special requirements may be

necessary depending upon building material construction.

2. Move crated hood to location of installation and very carefully uncrate hood.

3. Raise hood to proper hanging height.

4. Suspend hood from adequate roof supports using 1/2” threaded rods with

nuts and washers (See Fig. 1).

5. Level hood left to right and front to back.

6. Brackets are provided for hoods which are to be installed end to end or back

to back. Bolt brackets together using 3/8” bolt through holes provided (See

Fig. 2).

7. Install C channel where the ends of the hood meet and install T moldings on

front face of hoods where they join. High temperature silicone can be used

to install channel and T moldings (See Fig. 3).

8. For make-up air hoods, the supply collar with built-in UL listed re damper

and air volume damper must be installed per instructions on collar.

9. Provide a removable service door in supply duct near re damper (See Fig.

4).

EXHAUST FAN & DUCT

1. Check all local codes prior to installation.

2. All exhaust fans are supplied with a hinge kit and grease box.

3. The exhaust fan curb should be installed directly above the hood if possible.

Always maintain the shortest duct run possible.

4. Cut hole and seal exhaust fan curb to roof.

5. Duct shall be sized to provide air velocities not exceeding 1200 FPM.

6. Install hinges and airline cable on exhaust fan cap and metal curb.

Remember to leave ample room for fan to tilt back. Fan will remain in tilted

back position.

7. Install grease collection box on side of fan that has grease tube discharge.

8. The exhaust duct must be constructed of 16 gauge carbon steel or 18 gauge

stainless steel. All seems must be uid welded.

9. A duct transition should be provided below exhaust fan inlet.

10. The exhaust duct must be uid welded to hood collar.

11. Make all necessary electrical connections and check fan for proper rotation.

NOTE: Fan will exhaust air running in wrong direction.

WALL ATTACHMENT

Control panels are provided with all auto wash type ventilators (Model AW) and

are optional with all bafe lter type (AF) and modular grease extractor type (AX).

Control panels with models (AF) and (AX) do not have the auto wash plumbing

assembly compartments.

Control panel dimensions and connection detail are shown on the enclosed shop

drawing. Panels may be surfaced mounted, partially recessed or fully recessed.

FIGURE 5

FIGURE 6 FIGURE 7

FIGURE 8 FIGURE 9

ENCLOSURE TOP

ENCLOSURE

SIDE

FIGURE 10 FIGURE 11

78" A.F.F.

END SEAM CAP

CENTER SEAM CAP

END SEAM CAP

SUPPLIED STAINLESS BOLTS

AND ACORN NUTS

3 OM-VENTILATION SYSTEMS

SURFACE MOUNTED

Drill four holes in ventilator plumbing compartment as required. Be careful not

to damage any components. Avoid drilling into electrical compartments. Bolt to

wall with anchor bolts or other acceptable means. Weight of control panel varies

from 90 to 200 lbs.

RECESSED MOUNTED

Cut hole in wall 1/2” greater than overall dimensions of the control box (sho wn on shop

drawing). Spacers or support angles may be necessary to provide proper support. It

is recommended that the panel be bolted to wall similar to method used for

surface mounted above.

PAWS CONTROL PANEL

The Programmable Automatic Wash Sequence (PAWS) panel is designed to

control the operation of the ventilator exhaust and make-up air fans and wash the

grease extraction plenum with hot water/detergent solution. The fan operation

and wash sequence can be started and stopped manually or programmed for

automatic operation.

FRESH AIR SUPPLY FAN (See Fig. 5)

Pieces provided. One or two optional side skirts may be provided.

1. Check all local codes prior to installation.

2. Supply fan inlet must be located to minimum 10’-0” from the exhaust fan. If

10’ is not possible a 3’ vertical separation may* be acceptable.

3. Cut and seal supply fan curb to roof.

4. Duct shall be constructed of 22 or 24 gauge steel. Insulated duct material

should be used to eliminate frost and/or condensation.

5. Duct shall be sized to provide air velocities not exceeding 1200 FPM.

6. A volume control damper, provided in the duct just above the supply collar that

contains the UL listed re damper, should be properly set to supply CFM

required.

7. If the hood is provided without the supply collar installed, it must be installed

per the instructions provided on the collar.

8. Carefully place the supply fan on roof curb. Face supply fan inlet away from

prevailing winter wind. Electrical back draft damper is recommended in cold

climates.

9. Bolt or screw fan to fan curb.

10. Make all necessary electrical connections and check fan for proper rotation.

NOTE: Fan will supply air running in wrong direction. *Dependent on local code

requirements.

SIDE SKIRTS (See Fig. 6)

1. Side skirts are offset at the top and have a 90° bend inward at the rear.

2. Skirts are to overlap the outside of the hood. Bolts and acorn nuts should be

attached per the drawing (stainless bolts and acorn nuts supplied).

3. Skirt ange should be screwed to the wall (screws not provided).

TOP ENCLOSURE PANELS (See Fig. 7-9)

Pieces provided. Enclosure panels are provided for exposed side(s) of hood.

1. Hoods ordered with enclosure panels will be shipped with Z-clips welded

to the top perimeter of hood top where panels are to be installed. Nuts and

washers to connect front to sides are taped to the inside of one of the panels.

2. With a rubber mallet, tap 1” return ange into the Z-clip on all sides.

3. Attach sides to ends with provided panhead screws and nuts.

INSULATED WALL PANEL (See Fig. 12)

Pieces provided. Top panel will have a 1” ange full length top and bottom, and

interlocking slots located on the bottom. Bottom panel will have interlocking tabs

on top and full length 1” ange on bottom.

1. Install wall panels prior to hanging hood(s).

2. Install top panel rst at 6’-6” A.F.F. and level. Screw panel to wall making

sure slotted holes are facing oor.

3. Install lower panel by sliding tabs into slotted holes in upper panel, screw

bottom ange to wall.

4. Caulk horizontal seam with NSF approved silicone sealant.

5. When hood is hung it will rest on top panel.

NOTE: Be careful not to damage wall panel face when installing hood.

SINGLE THICKNESS WALL PANEL (See Fig. 13)

1. Install wall panels prior to hanging hood(s).

2. Install seam strips at proper locations and screw to wall.

3. Apply glue to wall between seam strips.

4. Slip one end of wall panel into seam strip, pull out middle of panel and slip other

end of panel into other seam strip. Gently apply pressure over entire wall panel to

secure to wall. Wall bands for side walls are provide with 1” return bend, which is

to be located behind rear wall panels.

START/CHECK/BALANCE

DIRECT DRAW HOODS

1. Close all doors and windows.

2. Operate all exhaust fans, even fans serving other hoods, make-up air units and

building HVAC.

3. Turn on all cooking equipment under the hood to preheat to operating

temperature.

4. Produce large quantities of smoke.

5. Observe capture of vapors.

6. If all vapors are not captured, increase exhaust fan RPM.

7. Check air pressure in kitchen. Pressure must be negative relative to dining

room pressure.

8. Air velocities entering the kitchen from the dining room should not exceed

100 FPM. No air should be moving toward the dining area.

9. Repeat steps 6 and 7 until all vapors are captured.

NOTE: The exhaust and supply (if any) air ow rates were established under

controlled laboratory conditions, and greater exhaust and/or lesser supply air

may be required for complete vapor and smoke removal in specic installations.

MAKE-UP AIR HOODS EXHAUST FAN(S)

1. Open all doors and/or windows leading to outside.

2. Start the exhaust fan only. Do not run the supply fan or make-up unit.

3. Refer to drawings and/or UL information label on hood for proper CFM

requirements.

4. Adjust speed of exhaust fan to obtain proper air velocities and CFM through

grease lters.

SUPPLY FAN OR MAKE-UP AIR UNIT

1. Start the supply fan and/or make-up unit only. Do not run the exhaust fan.

2. Refer to drawings or UL information label on hood for proper CFM

requirements.

Produkspesifikasjoner

Merke:	Avtec
Kategori:	Ikke kategorisert
Modell:	AXWO

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