Labconco Protector XL 1124 Series User manual

Original instructions
ProtectorXL™ Floor-Mounted
(Walk-In) Laboratory Fume Hoods
Models
1124 Series, 4' Vertical
1125 Series, 5' Vertical
1126 Series, 6' Vertical
1128 Series, 8' Vertical & Horizontal
1120 Series, 10' Horizontal
1121 Series, 12' Horizontal
1122 Series, 16' Horizontal

Original instructions
Copyright © 2021 Labconco Corporation. The information contained in this manual and the accompanying
products are copyrighted and all rights reserved by Labconco Corporation. Labconco Corporation reserves
the right to make periodic design changes without obligation to notify any person or entity of such change.
Returned or Damaged Goods
Do not return goods without the prior authorization from Labconco. Unauthorized returns will not be
accepted. If your shipment was damaged in transit, you must file a claim directly with the freight carrier.
Labconco Corporation and its dealers are not responsible for shipping damages.
The United States Interstate Commerce Commission rules require that claims be filed with the delivery
carrier within fifteen (15) days of delivery.
Limitation of Liability
The disposal and/or emission of substances used in connection with this equipment may be governed by
various federal, state, or local regulations. All users of this equipment are required to become familiar with
any regulations that apply in the user’s area concerning the dumping of waste materials in or upon water,
land, or air and to comply with such regulations. Labconco Corporation is held harmless with respect to
user’s compliance with such regulations.
Contacting Labconco Corporation
If you have questions that are not addressed in this manual, or if you need technical assistance, contact
Labconco’s Customer Service Department or Labconco’s Product Service Department at 1-800-821-5525
or 1-816-333-8811, between the hours of 7:30 a.m. and 5:30 p.m., Central Standard Time.
Part #9411100, Rev. K
ECO N065
Warranty
Labconco Corporation provides a warranty to the original buyer for the repair or replacement of parts and
reasonable labor as a result of normal and proper use of the equipment with compatible chemicals. Broken
glassware and maintenance items, such as filters, gaskets, light bulbs, finishes and lubrication are not
warranted. Excluded from warranty are products with improper installation, erratic electrical or utility supply,
unauthorized repair and products used with incompatible chemicals.
The warranty for Protector®XL™ Floor-Mounted (Walk-In) Laboratory Fume Hoods will expire one year
from date of installation or two years from date of shipment from Labconco, whichever is sooner. Warranty is
non-transferable and only applies to the owner (organization) of record.
Buyer is exclusively responsible for the set-up, installation, verification, decontamination or calibration of
equipment. This limited warranty covers parts and labor, but not transportation and insurance charges. If the
failure is determined to be covered under this warranty, the dealer or Labconco Corporation will authorize
repair or replacement of all defective parts to restore the unit to operation. Repairs may be completed by 3rd
party service agents approved by Labconco Corporation. Labconco Corporation reserves the rights to limit this
warranty based on a service agent’s travel, working hours, the site’s entry restrictions and unobstructed access
to serviceable components of the product.
Under no circumstances shall Labconco Corporation be liable for indirect, consequential, or special damages
of any kind. This warranty is exclusive and in lieu of all other warranties whether oral, or implied.

Original instructions
TABLE OF CONTENTS
CHAPTER 1: INTRODUCTION 1
About This Manual 3
Typographical Conventions 4
(Conventions Typographiques)
Your Next Step 5
CHAPTER 2: PREREQUISITES 7
Location Requirements 8
Support Requirements 8
Exhaust Requirements 8
(Exigences électriques)
Electrical Requirements 10
Service Line Requirements 10
Space Requirements 10
CHAPTER 3: GETTING STARTED 11
Unpacking Your Floor-Mounted Fume Hood 12
Removing the Shipping Skid 12
Sash Weight Release 13
Disassembly & Reassembly of the XL Floor-Mounted Hood 13
Lower Base Installation of the XL Floor-Mounted Hood 13
Upper Cabinet Installation of the XL Floor-Mounted Hood 14
Vertical-Rising Sash Installation 15
Lower Sash Track & Threshold Installation 19
Horizontal-Sliding Sash Installation 20
Corner Post Installation for the Floor-Mounted Hoods 21
Baffle Installation for the Floor-Mounted Hoods 21
Header Installation for the Floor-Mounted Hoods 23
Front Panel Installation for the Floor-Mounted Hoods 23
Connecting to the Hood Exhaust System 24
Connecting the Electrical Supply Source 24
Connecting the Service Lines to the Protector Hood 27
Sealing the Protector Hood to the Floor 28
Certifying the Protector Fume Hood 28

Original instructions
CHAPTER 4: PERFORMANCE FEATURES AND SAFETY
PRECAUTIONS 29
Performance Features 29
Safety Precautions 32
(Consignes de sécurité)
CHAPTER 5: USING YOUR PROTECTOR XL 36
Operating the Vertical-Rising Sash 36
Operating the Horizontal-Sliding Sashes 36
Operating the A-Style Combination Sash 36
Operating the Blower 37
Operating the Lights 37
Working in your Protector Fume Hood 37
CHAPTER 6: MAINTAINING YOUR PROTECTOR XL 39
Service Safety Precautions 39
(Mesures de sécurité des services)
Routine Maintenance Schedule 40
Routine Service Operations 41
CHAPTER 7: MODIFYING YOUR PROTECTOR XL 42
Installing Work Surfaces 42
Installing Ceiling Enclosures Above the Fume Hood 42
Installing Additional Service Fixtures 45
Installing Guardian Airflow Monitors 46
Floor Mount Distillation Grids –Field Installation 46
Sash Stop Kit –Field Installation 47
Installing an Electrical Duplex Outlet 47
(Installation d'une sortie Duplex électrique)
8' Dual Exhaust Adapter 47
CHAPTER 8: TROUBLESHOOTING 48
APPENDIX A: PROTECTOR XL COMPONENTS 51
APPENDIX B: PROTECTOR XL DIMENSIONS 55
APPENDIX C: PROTECTOR XL SPECIFICATIONS 57
(ANNEXE C: SPÉCIFICATIONS PROTECTEUR DU PREMIER MINISTRE)
APPENDIX D: SERIAL NUMBER TAG DESCRIPTION 60
(ANNEXE D: DESCRIPTION DE SÉRIE TAG NUMBER)
APPENDIX E: REFERENCES 66
APPENDIX F: DISASSEMBLY AND REASSEMBLY
INSTRUCTIONS 69
APPENDIX G: VAV FLOOR-MOUNTED OPEN AREA
GUIDELINES 72

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Original instructions
CHAPTER 1
INTRODUCTION
Congratulations on your purchase of a Labconco Protector® XL™ Floor-Mounted
(Walk-In) Laboratory Fume Hood. Your Protector Laboratory Floor-Mount Fume
Hood is designed to protect the laboratory scientist who must transport equipment
and products for experimentation and testing under a laboratory hood. It is the
result of Labconco’s more than 60 years of experience in manufacturing fume
hoods, and users like you suggested many of its features to us. The Vertical Floor-
Mounted Hood is rated high performance low flow at 60 fpm and the Horizontal
Floor-Mounted Hood is listed at 80 fpm.
The Labconco Protector XL Floor-Mounted Fume Hood has been engineered to
provide maximum visibility in a laboratory, and effectively contain toxic, noxious,
or other harmful materials when properly installed. The Protector XL offers many
unique features to enhance safety, performance, and visibility. To take full
advantage of them, please acquaint yourself with this manual and keep it handy for
future reference. If you are unfamiliar with how floor-mount fume hoods operate,
please review Chapter 4: Performance Features and Safety Precautions before
you begin working in the fume hood. Even if you are an experienced fume hood
user, please review Chapter 5: Using Your Protector XL, which describes your
Protector Floor-Mounted Hood’s features so that you can use the hood efficiently.

Chapter 1: Introduction
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Original instructions
Figure 1-1
Vertical Floor-Mount
Figure 1-2
Horizontal Floor-Mount

Chapter 1: Introduction
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Original instructions
About This Manual
This manual is designed to help you learn how to install, use, and maintain your
laboratory fume hood. Instructions for installing optional equipment on your hood
are also included.
Chapter 1: Introduction provides a brief overview of the floor-mounted laboratory
fume hood, explains the organization of the manual, and defines the typographical
conventions used in the manual.
Chapter 2: Prerequisites explains what you need to do to prepare your site before
you install your floor-mounted laboratory fume hood. Electrical and service
requirements are discussed.
Chapter 3: Getting Started contains the information you need to properly unpack,
inspect, install, and certify your floor-mounted laboratory fume hood.
Chapter 4: Performance Features and Safety Precautions explains how the
Protector operates and the appropriate precautions you should take when using the
floor-mounted fume hood.
Chapter 5: Using Your Protector XL Floor-Mounted Hood discusses the basic
operation of your fume hood. Information on how to prepare, use and shut down
your Protector Hood are included.
Chapter 6: Maintaining Your Protector XL Floor-Mounted Hood explains how to
perform routine maintenance on your fume hood.
Chapter 7: Modifying Your Protector XL Floor-Mounted Hood explains how to
modify the fume hood or add accessories.
Chapter 8: Troubleshooting contains a table of problems you may encounter while
using your laboratory fume hood including the probable causes of the problems
and suggested corrective actions.
Appendix A: Protector XL Floor-Mounted Hood Components contains labeled
diagrams of all of the components of the fume hoods.
Appendix B: Protector XL Floor-Mounted Hood Dimensions contains
comprehensive diagrams showing all of the dimensions for the laboratory fume
hoods.
Appendix C: Protector XL Floor-Mounted Hood Specifications contains the
electrical requirements for laboratory fume hood. Wiring diagrams are also
included.
Appendix D: Serial Number Tag Description provides current rating code used on
serial number tag.

Chapter 1: Introduction
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Original instructions
Appendix E: References lists the various resources available that deal with
laboratory fume hoods.
Appendix F: Disassembly and Reassembly Instructions lists the required tools as
well as step by step instructions for disassembling and reassembling the Protector
XL Hood.
Appendix G: VAV Floor-Mounted Open Area Guidelines to properly assess fume
hood effective area whenever variable air volume (VAV) mechanical systems are
installed.
Typographical Conventions
Recognizing the following typographical conventions will help you understand and
use this manual:
Book, chapter, and section titles are shown in italic type (e.g., Chapter 3:
Getting Started).
Steps required to perform a task are presented in a numbered format.
Comments located in the margins provide suggestions, reminders, and
references.
Critical information is presented in boldface type in paragraphs that are
preceded by the exclamation icon. Failure to comply with the information
following an exclamation icon may result in injury to the user or permanent
damage to fume hood.
Les informations critiques sont présentées en gras dans les paragraphes qui
sont précédés par l'icône d'exclamation. Ne pas se conformer aux informations
qui suivent une icône d'exclamation peut résulter à la blessure de l'utilisateur
ou à des dommages irréversibles de la hotte aspirante.
Critical information is presented in boldface type in paragraphs that are
preceded by the wrench icon. These operations should only be performed by a
trained certifier or contractor. Failure to comply with the information
following a wrench icon may result in injury to the user or permanent damage
to your hood.
Les informations critiques sont présentées en gras dans les paragraphes qui
sont précédés par l'icône de clé plate. Ces opérations devraient être seulement
exécutées par un professionnel agrée. L'échec pour se conformer aux
informations qui suivent une icône de clé plate peut résulter à la blessure de
l'utilisateur ou à des dommages irréversibles de la hotte.
Important information is presented in capitalized type in paragraphs that are
preceded by the pointer icon. It is imperative that the information contained in
these paragraphs be thoroughly read and understood by the user.

!

Chapter 1: Introduction
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Original instructions
A number icon precedes information that is specific to a particular model of
laboratory fume hood. The 4' icon indicates the text is specific to the 4-foot
wide model. The 5' icon indicates the text is specific to the 5-foot model, etc.
The S icon indicates the text is specific to the standard model.
The A icon indicates the text is specific to the A-Style Combination Sash
Model.
CAUTION –See Manual. When this symbol is on a fume hood it indicates a
caution that is detailed in this manual.
PRUDENCE –Consulter le Manuel. Quand ce symbole est sur une hotte
aspirante, il indique une prudence qui est détaillée dans ce manuel.
CAUTION –Hot Surface.
AVERTIR –Surface Chaude
CAUTION –See Manual. This symbol on the fume hood indicates the
possibility of a pinch hazard.
PRUDENCE –Consulter le Manuel. Ce symbole sur la hotte indique la
possibilité d'un risque de pincement.
Your Next Step
If your Fume Hood needs to be installed, proceed to Chapter 2: Prerequisites to
ensure your installation site meets all of the requirements. Then, go to Chapter 3:
Getting Started for instructions on how to install your laboratory fume hood and
make all of the necessary connections.
If you would like to review how laboratory fume hoods operate, go to Chapter 4:
Performance Features and Safety Precautions.
For information on the operational characteristics of your laboratory fume hood,
go to Chapter 5: Using Your Protector XL Floor-Mounted Hood.
If your laboratory fume hood is installed and you need to perform routine
maintenance on the cabinet, proceed to Chapter 6: Maintaining Your Protector XL
Floor-Mounted Hood.
4'
5'
6'
S
A
8'
!

Chapter 1: Introduction
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Original instructions
For information on making modifications to the configuration of your fume hood,
go to Chapter 7: Modifying Your Protector XL Floor-Mounted Hood.
Refer to Chapter 8: Troubleshooting if you are experiencing problems with your
fume hood.

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Original instructions
CHAPTER 2
PREREQUISITES
Before you install your floor-mount laboratory fume hood, you need to prepare
your site for installation. Carefully examine the location and floor where you
intend to install your floor-mounted hood. You must be certain that the area is
level and of solid construction. In addition, a dedicated source of electrical power
must be located near the installation site.
Carefully read this chapter to learn the requirements for your installation site:
The location requirements.
The support requirements.
The exhaust requirements.
The electrical power requirements.
The service line requirements.
The space requirements.
Refer to Appendix B: Protector XL Floor-Mounted Hood Dimensions for
complete fume hood dimensions.
Refer to Appendix C: Protector XL Floor-Mounted Hood Specifications for
complete laboratory fume hood electrical and environmental conditions,
specifications and requirements.

Chapter 2: Prerequisites
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Original instructions
Location Requirements
The floor-mounted fume hood should be located away from
traffic patterns, doors, windows, fans, ventilation registers, and
any other air-handling device that could disrupt its airflow
patterns. All windows in the room should be closed.
La hotte monté au sol devrait être situé loin des modèles de
trafic, les portes, les fenêtres, les ventilateurs, les registres de
ventilation, et tout autre appareil de traitement d'air qui
pourraient perturber ses habitudes de circulation d'air. Toutes
les fenêtres de la chambre doivent être fermées.
Support Requirements
DO NOT install the fume hood on a cart, dolly, or mobile
bench. ALL Protector Hood installations must be permanent
and stationary. The Protector XL Floor-Mounted Hood is
usually mounted directly on room floor surfaces, or an optional
chemical resistant work surface.
NE PAS installer la hotte sur un panier, chariot, ou banc
mobile. Toutes les installations de protection de capot doit être
permanent et stationnaire. Le Protecteur du XL-parole
Gendarmerie capot est généralement monté directement sur
des surfaces de plancher de la salle, ou une surface de travail
optionnel résistant aux produits chimiques.
Exhaust Requirements
The exhaust duct connection has been designed for 12" nominal duct (12.75" OD)
to allow for minimum static pressure loss while operating at 60 to 100 fpm face
velocities. The 12" diameter exhaust duct also allows for proper transport
velocities away from the hood in the 1000 fpm to 2500 fpm range. The proper
exhaust volume and static pressure loss are listed next for each hood model:
!
!

Chapter 2: Prerequisites
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Original instructions
Proper blower selection for vertical and horizontal floor-mounted hoods can be
determined from these exhaust requirements and the total system static pressure
loss. Contact Labconco Customer Service for assistance in sizing a blower
system. Refer to Appendix G: VAV Floor-Mounted Open Area Guidelines to
properly assess the fume hood area opening, allowing the variable air volume
(VAV) mechanical system to be programmed at various sash positions.
Projected Airflows and Static Pressure
Hood Type Face Velocity (fpm) Airflow Volumetric Rate (CFM) @
Vertical Top Sash Top Sash Static Pressure (inches of water)
Floor Full open open 62.5% 4' 5' 6' 8'
Mount at 64" at 54" Hood Hood Hood Hood
Walk-In 100 160 725, 0.27" 955, 0.34" 1180, 0.46" 1640, 0.31"
XL 80 128 580, 0.17" 765, 0.22" 945, 0.29" 1310, 0.20"
W/Bypass 62.5 100 450, 0.11" 595, 0.13" 735, 0.18" 1025, 0.12"
Block 60 96 435, 0.10" 575, 0.12" 710, 0.17" 985, 0.11"
50 80 365, 0.07" 480, 0.09" 590, 0.11" 820, 0.08"
40 64 290, 0.05" 380, 0.06" 470, 0.08" 655, 0.05"
38 60 270, 0.04" 360, 0.05" 440, 0.07" 615, 0.04"
Note: BottomSash is closed and
only opened for loading.
Projected Airflows and Static Pressure
Doors Open 2 Doors 1 Door 1 Door 1 Door
Hood Type Face Velocity (fpm) Airflow Volumetric Rate (CFM) @
Horizontal Horizontal Static Pressure (inches of water)
Floor Sash at 8' 10' 12' 16'
Mount Full Open Hood Hood Hood Hood
Walk-In
XL 100 2150, 0.53" 1450, 0.22" 1765, 0.30" 2400, 0.18"
W/Bypass 80 1720, 0.34" 1160, 0.14" 1410, 0.19" 1920, 0.12"
Block 2 Doors 1 Door 1 Door 1 Door
Open Open Open Open

Chapter 2: Prerequisites
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Original instructions
Electrical Requirements
The Protector XL Floor-Mounted Hood models feature internal wiring for the
LED light assembly and light switch. All internal wiring is terminated at the
single point wiring junction box for hook-up by a qualified electrician. The
blower switch, and light switch wires are also terminated at the single point
wiring junction box for hook-up by a qualified electrician. Refer to Chapter 3:
Getting Started and Appendix C: Protector XL Specifications for the wiring
diagram for proper electrical installation.
Les modèles Protège-capot disposent câblage interne de l'assemblage de lumière
LED et interrupteur de lumière. Tout le câblage interne est terminé à la boîte de
jonction point de câblage unique pour le raccordement par un électricien qualifié.
Le bouton du ventilateur, et fils de l'interrupteur de lumière sont également mis
fin à la boîte de jonction point de câblage unique pour le raccordement par un
électricien qualifié. Reportez-vous au Chapitre 3: Mise en route et à l'Annexe C:
Spécifications Premier Protector pour le schéma de câblage pour l'installation
électrique correcte.
Service Line Requirements
All service lines to the laboratory fume hood should be ¼ inch outside diameter,
copper (brass for natural gas), and equipped with an easily accessible shut-off
valve, should disconnection be required. Recommended operating pressure is
40 PSI, with a maximum allowable pressure of 200 PSI. Consider a pressure
regulator to reduce line pressure to 40 PSI. Please check with local codes for
other requirements.
Space Requirements
The dimensions for the different models are shown in Appendix B: Protector XL
Floor-Mounted Hood Dimensions.

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Original instructions
CHAPTER 3
GETTING STARTED
Now that the site for your floor-mounted fume hood is properly prepared, you are
ready to unpack, inspect, install, and certify your unit. Read this chapter to learn
how to:
Unpack and move your floor-mounted hood.
Set up the floor-mounted fume hood on the floor.
Connect to an exhaust system.
Connect the electrical supply source.
Connect the service lines.
Sealing the Protector Hood to the floor.
Arrange certification of your Protector Hood.
Depending upon which model you are installing, you may need common
plumbing and electrical installation tools in addition to 5/16", 3/8", 7/16", and
1/2" wrenches, ratchets, sockets, a nut driver set, a flat-blade screwdriver, a
Phillips screwdriver, and a carpenter level to complete the instructions in the
chapter.
The Protector XL Hood models weigh between 700 to 3500 lbs.
(318-1593 kg). The multiple shipping pallets allow for lifting
with a mechanical lift truck or floor jack. If you must lift the
fume hood manually, follow safe-lifting guidelines.
Les modèles Protector XL capot pèsent entre 700 à 3500 livres.
(318-1593 kg). Les multiples palettes d'expédition permettent
de levage avec un chariot élévateur mécanique ou prise de
parole. Si vous devez soulever la hotte manuellement, suivre les
directives safe-levage.
!

Chapter 3: Getting Started
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Original instructions
Unpacking Your Floor-Mounted Fume
Hood
Your Protector XL Floor-Mounted (Walk-In) Hood has been shipped to you as
ten main component assemblies located on three shipping skids. The ten main
component assemblies consist of the lower base, upper cabinet, sashes, lower sash
track, corner posts, service fixtures, electrical connections, baffles, header, and
front panel.
Carefully remove the shrink-wrap or carton on your fume hood and inspect it for
damage that may have occurred in transit. If your unit is damaged, notify the
delivery carrier immediately and retain the entire shipment intact for inspection
by the carrier.
DO NOT RETURN GOODS WITHOUT THE PRIOR
AUTHORIZATION OF LABCONCO. UNAUTHORIZED
RETURNS WILL NOT BE ACCEPTED.
IF YOUR HOOD WAS DAMAGED IN TRANSIT, YOU MUST
FILE A CLAIM DIRECTLY WITH THE FREIGHT CARRIER.
LABCONCO CORPORATION AND ITS DEALERS ARE NOT
RESPONSIBLE FOR SHIPPING DAMAGES.
Do not discard the shipping skid or packing material for your floor-mounted fume
hood until you have checked all of the components and installed and tested the
unit. Many components of the floor-mounted hood are shipped loose such as
baffles and corner posts and do not discard. See Figure 1-1, Figure 1-2,
Figure 3-1, Figure 3-7, Figure B-1 and Figure B-2 that shows proper XL
Baffle installation. Do not remove the fume hood from its shipping skids until it
is ready to be placed into its final location. Move the unit by placing a flat, low
dolly under the shipping skid, or by using a floor jack.
Do not move the hood by tilting it onto a hand truck.
Ne pas déplacer la hotte en le penchant sur un diable.
Removing the Shipping Skid
LEAVE THE FUME HOOD ATTACHED TO ITS SHIPPING
SKID UNTIL IT IS AS CLOSE TO ITS FINAL LOCATION AS
POSSIBLE. MOVE THE HOOD BY USING A SUITABLE
FLOOR JACK, OR BY PLACING A FURNITURE DOLLY
UNDERNEATH THE SKID. DO NOT MOVE THE HOOD BY
TILTING IT ONTO A HAND TRUCK.
The United
States
Interstate
Commerce
Commission
rules require
that claims
be filed with
the delivery
carrier
within fifteen
(15) days of
delivery.
!




Chapter 3: Getting Started
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Original instructions
After you verify the fume hood components, move your hood to the location
where you want to install it. Then, follow the steps listed next to remove the
separate shipping skids from the lower base and upper cabinet.
1. Remove the side panels by unscrewing the Phillips screws.
2. Find the hardware (bolts, washers, nuts) that attach the fume hood to
the skid and remove the hardware. Some hardware is on the sides and
some is on the back.
Sash Weight Release
On Floor-Mounted Hood models with vertical-rising sashes, the sash weights
have been secured to the shipping skid. Remove the weights from the skid and
attach them to the respective sash cables using the hooks provided.
NOTE: THE SASH WEIGHT ITSELF WAS INDIVIDUALLY
MATCHED FOR THIS SPECIFIC HOOD AND SHOULD NOT
BE EXCHANGED ON ANY OTHER UNIT.
Disassembly and Reassembly of the
Protector XL Floor-Mounted Hood
There may be some disassembly and reassembly work, due to the large physical
size of your laboratory hood and the ability to maneuver it into your laboratory.
This is specific to each customer.
Lower Base Installation of the Protector
XL Floor-Mounted Hood
The lower base features a panelized liner surrounded by an epoxy-coated steel and
galvanized steel framework. Both the left and right side panels should be
removed to allow for the correct placement of the lower cabinet assembly.
Temporarily remove both vertical-rising sashes shipped with the lower base (on
vertical-rising sash models only). Position the lower base on a level floor surface.
Place the vertical-rising sashes back in place (on vertical-rising sash models only).
NOTE: If an optional floor surface is purchased, it should be positioned on the
existing floor prior to placement of the lower cabinet installation. See Figure 3-1.

V

Chapter 3: Getting Started
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Original instructions
Upper Cabinet Installation of the
Protector XL Floor-Mounted Hood
Remove the upper cabinet assembly side panels and front panels prior to cabinet
placement. Then place the upper cabinet assembly on top of the lower base
assembly, being careful to clear the lower base assembly during placement. To
prevent spillage from seeping between the two liner assemblies, run a bead of
white RTV sealant between the sections once they have been properly aligned.
Mount the lower base to the upper cabinet using the ¼-20 hex head screws,
lockwashers, and nuts included in your hood package. See Figure 3-2.
Figure 3-1
Upper Cabinet Assy.
Lower Base Assy.
Rear Vertical
Lower Sash with
inner wide weight
Front Vertical
Upper Sash with
Outer Weights
Apply bead of RTV
at inner joint.

Chapter 3: Getting Started
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Original instructions
Vertical-Rising Sash Installation for the
4', 5', 6', & 8' Floor-Mounted Hoods
The Vertical-Rising Sash Floor-Mounted Hood has two vertical-rising sashes.
The rear vertical-rising sash moves from the floor to full open and picks up the
front vertical-rising sash, which travels from the midpoint to full open. The
vertical rising sashes are shipped captured between the hood side frame
assemblies of the lower base assembly. Both upper and lower sash tracks are
attached to the side frames. The hood should be at a pre-assembled state with the
top section bolted to the base, and the sashes still captured between the two side
frames. Bring the sides back and adjust the sash tracks left and right to assure that
each sash will work properly and tighten all hardware.
Now that the sashes are in place, the counterbalance weights must be installed.
The large single sheet metal sash weight is installed in the middle and attached to
the lower rear sash. The two individual sash weights counterbalance the front
vertical-rising sash; these weights have rollers and ride in the rear sash tracks that
straddle the middle sheet metal sash weight. Install the rear weight tracks for the
individual sash weights with the #10-24 screws and #10-24 KEPS nuts supplied.
See Figures 3-2, 3-3, and 3-4. It is vitally important that the front upper and
lower sash tracks are fully aligned and the strap plates are used to secure this
alignment. See Figure 3-3 and Figure 3-4. Once the sashes are aligned and
operating freely, secure the lower base to the floor with sealant or fasteners.
(Note: Hardware not supplied due to installation variables.) Securing the lower
base will ensure the sashes will work freely.
As a last step, install the four rubber bumpers with #6 screws supplied. One set of
rubber bumpers prevents the front upper sash from traveling too low. The second
set of rubber bumpers prevent the rear lower sash from touching the floor and
provides a good sweep of clean air across the floor. See Figure 3-3.
V

Chapter 3: Getting Started
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Original instructions
Figure 3-2
Front Upper Sash attaches to
Outer Cable to Outer Sheet Metal
Weights for partial upper travel
Rear Lower Sash attaches to Inner
Cable to Inner Weight for full
travel
Inner Rear Pulley
Outer Rear Pulley
Outer Front
Pulley for
Front Upper
Sash
Rear Weight Track
& #10-24 Screw &
#10-24 KEPS Nut
1/4"-20
Hardware for
fastening Lower
Base to Upper
Cabinet
Rear Lower Sash
Front Upper Sash
Location of self-
drilling screws
to mount corner
posts
Inner Front
Pulley for Rear
Lower Sash