Unified Brands Ventilation Hood Premier Ventilation User Manual

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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