OPERATORS MANUAL
This manual provides
Installation & Operating instructions for
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
file a claim with the carrier. We recommend that you
do so at once.
Information contained in this document is known to be current
and accurate at the time of printing/creation. Unified Brands
recommends referencing our product line websites,
unifiedbrands.net, for the most updated product information and
specifications.
1055 Mendell Davis Drive
Jackson, MS 39272
888-994-7636, fax 888-864-7636
avtecind.com
P/N PP MNL0806 09/08
In addition, all Avtec food service
equipment is backed by some of the
best warranties in the foodservice
industry and by our professional staff of
service technicians.
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 specifications 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
3
Installation Instructions
This manual covers three of the basic types of systems offered by Avtec:
TYPES OF SYSTEMS
• TAKU-Baffle Filter (AF)
• Modular Grease Extractor (AX)
• Auto Wash Down (AW)
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 classified removable baffle
filters 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. Sur-
face, plenum and duct collar re extinguishing systems may be factory supplied.
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.
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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 finished floor for
canopies. Low side wall ventilators should be installed directly upon a Avtec base or on a
rerated wall. If wall mounted, the bottom of the vent should be 36” above finished floor.
INSTALLATION REQUIREMENTS
FOR ALLAVTEC TAKU
VENTILATION HOODS
ALL AVTEC VENTILATION SYSTEMS MUST BE INSTALLED IN ACCOR-
DANCE WITH NFPA-96, REMOVAL OF SMOKE AND GREASE-LADEN
VAPORS FROM COMMERCIAL COOKING EQUIPMENT.
1. Check all local codes prior to installation. Special requirements may be necessary
depending upon building material construction.
CANOPIES
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
and washers (See Fig. 1).
"
threaded rods with nuts
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).
Figure 3
Figure 4
Figure 1
Figure 2
HANGER BRACKET DETAIL
S.S. NUT & BOLT
BY OTHERS
HANGER ROD
HANGER ROD
NUT
EXHAUST DUCT
INSULATED
SUPPLY DUCT
HOOD FACE
PRE-DRILLED
HOLE, ACCEPTS
UP TO 1/2"ÿ ROD
ACCESS
PANEL
PRE-DRILLED
HOLE, ACCEPTS
5/16" BOLT
T-MOLDING
FLUIDWELD
HOOD
ANGLE
OF HOOD
C-CHANNEL
FIREDAMPER &
VOLUME CONTROL
DAMPER
NOTE: HOLES DRILLED THROUGH HOODANGLE BY
INSTALLER AFTER BRACKET ATTACHMENT
POINTS HAVE BEENDETERMINED.
5
Installation Instructions
1. Check all local codes prior to installation.
EXHAUST FAN & DUCT
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 fluid welded.
9. A duct transition should be provided below exhaust fan inlet.
10. The exhaust duct must be fluid 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.
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Installation Instructions
Control Panel
(if provided)
Control panels are provided with all auto wash type ventilators (Model AW) and are
optional with all baffle filter type (AF) and modular grease extractor type (AX).
Control panels with models (AF) and (AX) do not have the auto wash plumbing assembly
compartments.
WALL ATTACHMENT
Control panel dimensions and connection detail are shown on the enclosed shop drawing.
Panels may be surfaced mounted, partially recessed or fully recessed.
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.
SURFACE MOUNTED
RECESSED MOUNTED
Cut hole in wall 1/2” greater than overall dimensions of the control box (shown 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.
1. Check all local codes prior to installation.
FRESH AIR SUPPLY FAN
(See Fig. 5 on page 8)
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.
7
Installation Instructions
Side Skirts
Figure 5
10' - 0" MINIMUM
GREASE
TERMINATOR
OR
HING
40" MINIMUM
GREASE TROUGH
EXHAUST DUCTALL WELD
CONSTRUCTION
EXHAUST
DUCT IS
FLUID
WELDED
TO
COLLAR
CEILING
PIECES PROVIDED
FRESH AIR SUPPLY
FAN CONTINUED
(See Fig. 6)
One or two optional side skirts may be provided.
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 flange should be screwed to the wall (screws not provided).
Figure 6
SUPPLIED STAINLESS BOLTS
AND ACORN NUTS
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Installation Instructions
Side Skirts
PIECES PROVIDED
TOP ENCLOSURES
INSTALLATION OF
ENCLOSURE PANELS
(See Fig. 7-9)
Enclosure panels are provided for exposed side(s) of hood(s).
1. Hoods ordered with enclosure panels will be shipped with threaded metal studs
installed on perimeter of hood top where panels are to be installed. Retaining nuts
and washers are installed on the studs prior to shipping.
2. Loosen nuts on studs. Slide enclosure panel under loosened nuts. Holes in panels
are open on end so nuts do not have to be removed.
3. If enclosure panels are installed on one or more hoods butted end to end, the butting
ends of the front enclosure panels should be bolted together.
Figure 7
B
A
B
A
Figure 8
ENCLOSURE TOP
HOOD TOP
T-MOLDING
HOOD FRONT
Figure 9
ENCLOSURE
SIDE
ENCLOSURE TOP
9
Installation Instructions
Insulated Stainless Steel Wall Panels
PIECES PROVIDED
Insulated wall panel comes in two pieces.
A. Top panel will have a 1” flange full length top and bottom with interlocking
slots located on the bottom.
B. Bottom panel will have interlocking tabs on top and full length 1” flange on bottom.
1. Install wall panels prior to hanging hood(s).
INSULATED WALL PANEL
(See Fig. 10)
2. Install top panel first. Top of panel should be installed 6’-6” A.F.F. and level.
Screw panel to wall making sure slotted holes are facing floor.
3. Install lower panel by sliding tabs into slotted holes in upper panel, screw bottom
flange 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 to not damage wall panel face when installing hood.
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.
SINGLE THICKNESS
WALL PANEL
(See Fig. 11)
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.
Figure 10
Figure 11
END SEAM CAP
CENTER SEAM CAP
END SEAM CAP
78" A.F.F.
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Start / Check / Balance
1. Close all doors and windows.
DIRECT DRAW HOODS
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.
10. Same as step 7 with bottom of next page.
NOTE: The exhaust and supply (if any) air flow rates were established under con-
trolled laboratory conditions, and greater exhaust and/or lesser supply air may be
required for complete vapor and smoke removal in specific installations.
1. Open all doors and/or windows leading to outside.
MAKE-UP AIR HOODS
Exhaust Fan(s)
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 filters.
1. Start the supply fan and/or make-up unit only. Do not run the exhaust fan.
SUPPLY FAN OR
MAKE-UP AIR UNIT
2. Refer to drawings or UL information label on hood for proper CFM requirements.
11
Final Air Balance
1. Close all doors and windows.
MAKE-UP AIR HOODS
2. Operate all exhaust fans even those serving other hoods, supply fans, make-up air
unit and building HVAC system.
3. Turn on all cooking equipment under the hood and preheat to operating temperature.
4. Produce large quantities of smoke or steam.
5. Observe capture of vapors.
6. If all vapors are not totally captured, ne tune the system by adjusting the air volume
control damper installed in the supply collar. Slightly reduce the amount of supply air
directed under the hood until full capture is obtained.
UNIFIED BRANDS
1055 Mendell Davis Drive Jackson, MS 39272
888-994-7636 fax 888-864-7636 unifiedbrands.net
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