Labconco Protector PVC Perchloric Acid, Acid Digestion Fume Hood User's Manual

User’s Manual
Protector® PVC Perchloric Acid &
Acid Digestion Laboratory Fume Hoods
Perchloric Acid Models
4882300
7282300
9682300
Acid Digestion Models
4882400
7282400
9682400
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Labconco Corporation
8811 Prospect Avenue
Kansas City, MO 64132-2696
800-821-5525, 816-333-8811
FAX 816-363-0130
E-MAIL [email protected]
HOME PAGE www.labconco.com
Please read the User’s Manual before operating the equipment.
Copyright © 2002, 2007 Labconco Corporation. All rights reserved.
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.
Warranty
Labconco provides a warranty on all parts and factory workmanship. The warranty includes areas of
defective material and workmanship, provided such defect results from normal and proper use of the
equipment.
The warranty for all Labconco products will expire one year from date of installation or two years
from date of shipment from Labconco, whichever is sooner, except the following;
•
•
•
•
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Purifier® Delta® Series Biological Safety Cabinets and PuriCare® Lab Animal Research
Stations carry a three-year warranty from date of installation or four years from date of
shipment from Labconco, whichever is sooner.
SteamScrubber® & FlaskScrubber® Glassware Washers carry a two-year warranty from
date of installation or three years from date of shipment from Labconco, whichever is sooner.
Blood Drawing Chairs carry a ten year warranty.
Carts carry a lifetime warranty.
Glassware is not warranted from breakage when dropped or mishandled.
This limited warranty covers parts and labor, but not transportation and insurance charges. In the
event of a warranty claim, contact Labconco Corporation or the dealer who sold you the product. If
the cause is determined to be a manufacturing fault, the dealer or Labconco Corporation will repair or
replace all defective parts to restore the unit to operation. Under no circumstances shall Labconco
Corporation be liable for indirect, consequential, or special damages of any kind. This statement may
be altered by a specific published amendment. No individual has authorization to alter the provisions
of this warranty policy or its amendments. Lamps and filters are not covered by this warranty.
Damage due to corrosion or accidental breakage is not covered.
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 7:00 a.m. and 6:00 p.m., Central Standard Time.
Part #9858000, Rev. C
ECO E618
TABLE OF CONTENTS
CHAPTER 1: INTRODUCTION
About This Manual
Typographical Conventions
Your Next Step
1
3
4
5
CHAPTER 2: PREREQUISITES
Location Requirements
Support Requirements
Exhaust Requirements
Exhaust Requirements Table
Exhaust Washdown Requirements
Electrical Requirements
Service Line Requirements
Space Requirements
Your Next Step
7
8
8
8
9
9
10
10
10
10
CHAPTER 3: GETTING STARTED
Unpacking Your PVC Fume Hood
Removing the Shipping Skid
Sash Weight Release
Install PVC Hood on Support Structure & Hardboard Support
Connecting to Protector PVC Hood Exhaust System
Connecting to the Exhaust Washdown
Connecting to the Washdown Drain
Connecting the Electrical Supply Source to the PVC Fume Hood
Connecting the Service Lines to the PVC Fume Hood
Connecting the Washdown Control Fixture to the PVC Fume Hood
Certifying the PVC Fume Hoods
Your Next Step
11
12
13
13
14
17
18
18
19
21
22
22
23
CHAPTER 4: PERFORMANCE FEATURES AND SAFETY
PRECAUTIONS
Performance Features
Safety Precautions
Your Next Step
25
25
31
35
CHAPTER 5: USING THE PVC FUME HOOD
Operating the Vertical-Rising Glass Sash
Operating the Vertical-Rising Lexan Sash
Operating the Blower
Operating the Lights
Operating the Washdown Control Valve
Working in the Protector PVC Fume Hood
Your Next Step
37
37
38
38
38
38
39
41
CHAPTER 6: MAINTAINING THE PVC FUME HOOD
Routine Maintenance Schedule
Routine Service Operations
Your Next Step
43
44
45
45
CHAPTER 7: MODIFYING THE PVC FUME HOOD
Installing Hardboard Support
Installing Ceiling Enclosures above the PVC Fume Hood
Installing Rear Panels Behind the Fume Hood
Installing Additional Service Fixtures
Installing Guardian Digital Airflow Monitor or Guardian Jr.
Sash Stop Kit – Field Installation
Installing an Electrical Duplex Outlet
Your Next Step
47
47
48
48
49
49
50
50
51
CHAPTER 8: TROUBLESHOOTING
53
APPENDIX A: PROTECTOR PVC HOOD COMPONENTS
57
APPENDIX B: PROTECTOR PVC HOOD DIMENSIONS
61
APPENDIX C: PROTECTOR PVC HOOD SPECIFICATIONS
63
APPENDIX D: REFERENCES
65
DECLARATION OF CONFORMITY
69
CHAPTER 1
INTRODUCTION
Congratulations on your purchase of a Labconco
Protector® PVC Perchloric Acid Laboratory Fume
Hood or Protector® PVC Acid Digestion Laboratory
Hood. The difference between the two hoods is that the
Protector PVC Perchloric Acid Hood uses a glass sash
and the Protector PVC Acid Digestion Hood uses a
Lexan™ sash to combat the fogging of glass caused by
hydrofluoric acid (HF). Note that Perchloric acid will
react with the Lexan sash and is not to be used in an
Acid Digestion Hood. The Protector PVC Perchloric
Laboratory Hood is designed to efficiently ventilate
procedures using Perchloric acid. The Protector PVC
Acid Digestion Laboratory Hood is designed to
efficiently ventilate all other heavy acid operations
including hydrofluoric acid. It is the result of
Labconco’s more than 50 years experience in
manufacturing fume hoods, and users like you
suggested many of its features to us.
The Protector PVC Perchloric Acid Fume Hood has
been engineered to provide maximum safety in a
laboratory while using Perchloric acid. Usage of
materials other than Perchloric acid is not
recommended. Perchloric acid is a strong oxidizing
agent, and should not be used in combination with
any organic material as the possibility of a
hazardous chemical reaction or explosion could
develop. The Protector PVC Acid Digestion Fume
Hood has been designed to handle all other
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1
Chapter 1: Introduction
types of acids including hydrofluoric acid (HF), but not
Perchloric acid. The Protector PVC Hoods offer 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 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 Fume Hood,
which describes the Protector PVC Perchloric Acid
Hood features so that you can use the hood efficiently.
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Chapter 1: Introduction
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 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 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 laboratory fume hood.
Chapter 4: Performance Features and Safety
Precautions explains how the Protector PVC Hoods
operate and the appropriate precautions you should take
when using the fume hood.
Chapter 5: Using Your Protector PVC Hood discusses
the basic operation of your fume hood.
Chapter 6: Maintaining Your Protector PVC Hood
explains how to perform routine maintenance on your
fume hood.
Chapter 7: Modifying Your Protector PVC 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.
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Chapter 1: Introduction
Appendix A: Protector PVC Hood Components contains
labeled diagrams of all of the components of the fume
hoods.
Appendix B: Protector PVC Hood Dimensions contains
comprehensive diagrams showing all of the dimensions
for the laboratory fume hoods.
Appendix C: Protector PVC Hood Specifications
contains the electrical requirements for laboratory fume
hoods. Wiring diagrams are also included.
Appendix D: References lists the various resources
available that deal with laboratory fume hoods.
Typographical Conventions
Recognizing the following typographical conventions
will help you understand and use this manual:
•
•
•
•
!
•
)
4
•
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.
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.
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.
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Chapter 1: Introduction
•
•
•
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 P icon indicates the text is specific to the PVC
Perchloric Acid model.
The A icon indicates the text is specific to the PVC
Acid Digestion (Lexan Sash) Model.
4'
6'
8'
P
A
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 PVC 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 PVC Hood.
For information on making modifications to the
configuration of your fume hood, go to Chapter 7:
Modifying Your Laboratory Fume Hood.
Refer to Chapter 8: Troubleshooting if you are
experiencing problems with your fume hood.
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Chapter 1: Introduction
6
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CHAPTER 2
PREREQUISITES
Before you install your laboratory fume hood, you need
to prepare your site for installation. Carefully examine
the location where you intend to install your 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
location.
Carefully read this chapter to learn the requirements for
your installation:
•
•
•
•
•
•
•
The location requirements.
The support requirements.
The exhaust requirements.
The exhaust washdown requirements.
The electrical power requirements.
The service line requirements.
The space requirements.
Refer to Appendix B: Protector PVC Hood Dimensions
for complete fume hood dimensions.
Refer to Appendix C: Protector PVC Hood
Specifications for complete laboratory fume hood
electrical and environmental conditions, specifications
and requirements.
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Chapter 2: Prerequisites
Location Requirements
!
The 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.
Support Requirements
!
DO NOT install the fume hood on a
cart, dolly, or mobile bench. ALL
Protector PVC Hood installations
must be permanent and stationary.
The supporting structure usually
consists of a base cabinet and
hardboard support.
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 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 exhaust duct used in
conjunction with the Protector PVC Fume Hood should
be fabricated out of Type I, unplasticized PVC or Type
316 stainless steel. Stainless steel ducting must be fully
welded in place so that it does not allow any cracks or
holes at the joints to allow for the collection of
Perchloric acid salts or acids. The proper exhaust
volume and static pressure loss are listed next for each
hood model.
8
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Chapter 2: Prerequisites
NOTE: This chart applies to both the PVC Perchloric
Acid Hoods and the PVC Acid Digestion Hoods.
4'
48" Protector PVC Hood
Full Open 28" Sash Opening
Static
Face
Exhaust
Pressure
Velocity
Volume
Loss
100 fpm
730 CFM
0.17" H2O
6'
72" Protector PVC Hood
100 fpm
1180 CFM
0.31" H2O
8'
96" Protector PVC Hood
100 fpm
1660 CFM
0.22" H2O
Hood
Size
Standard Model Description
Proper blower selection can be determined from these
exhaust requirements and the total system static
pressure loss. Contact Labconco Customer Service for
assistance in sizing a remote blower system.
Exhaust Washdown
Requirements
The entire exhaust duct system must feature an
adequate washdown system. This includes the exhaust
ductwork, blower, hood structure itself, and any
ductwork located outside the blower. Wash rings are
required to be placed in the exhaust duct system every 8
to 10 feet and after any change in direction to provide
adequate washdown. Contact Labconco for washdown
ring ordering information. A washdown and drain
should be provided in your exhaust blower. This
washdown water and effluent material can be drained
from the exhaust blower back into the exhaust duct for
disposal. Contact Labconco for blowers. The Protector
PVC Hood washdown drain outlet is sized for 2"
nominal (2.375" OD) PVC pipe.
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Chapter 2: Prerequisites
Electrical Requirements
The Protector PVC Hood models feature internal wiring
for the fluorescent light assembly and light switch. All
internal wiring is terminated at the single point wiring
junction box for connection 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 PVC Hood
Specifications for the wiring diagram for proper
electrical installation.
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. If the service line
pressure exceeds 40 PSI, it must be equipped with a
pressure regulator to reduce the line pressure.
Space Requirements
The dimensions for the different models are shown in
Appendix B: Protector PVC Hood Dimensions.
Your Next Step
After you have determined that the location you have
selected accommodates the installation and operational
requirements of your fume hood, you are ready to begin
installation. Proceed to Chapter 3: Getting Started.
10
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CHAPTER 3
GETTING STARTED
Now that the site for your laboratory fume hood is
properly prepared, you are ready to unpack, inspect,
install, and certify your hood. Read this chapter to
learn how to:
• Unpack and move your Protector PVC Hood.
• Set up the fume hood with the supporting
structure and work surface.
• Connect to an exhaust system suitable for
Perchloric acid and acids.
• Connect the exhaust washdown to the exhaust
system.
• Connect to the washdown drain.
• Connect the electrical supply source.
• Connect the service lines.
• Seal the Protector PVC Hood to the hardboard
work surface.
• Arrange certification of your Protector PVC
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 PVC Hood models
weigh between 375 to 600 lbs. (170-272
kg). The shipping skid
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Chapter 3: Getting Started
allows for lifting with a mechanical lift
truck or floor jack. If you must lift
the fume hood manually, follow safelifting guidelines. Normally, the fume
hood can be slid off a hydraulic lift
table and be placed into position on
top of the hardboard work surface.
Do not lift by the front air foil.
Care must be taken not to damage the
drain trough located in the rear of the
PVC Fume Hood.
Unpacking Your Laboratory
Fume Hood
The United States
Interstate Commerce
Commission rules
require that claims be
filed with the delivery
carrier within fifteen (15)
days of delivery.
Carefully remove the crate and shrink-wrap 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 fume hood until you have checked all of the
components and installed and tested the unit.
Do not remove the fume hood from its shipping skid
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.
!
12
Do not move the hood by tilting it onto
a hand truck.
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Chapter 3: Getting Started
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.
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 shipping skid
from your hood.
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
To protect the fume hood from damage in shipment, the
sash weight has been secured to the back of the fume
hood with four (4) screws. Remove the screws and
make sure the sash cables are on the pulleys before
operating the sash. On models with more than one
sash, the sash weights have been secured to the
shipping skid with lag screws. Remove the weights
from the skid and attach them to the respective sash
cables using the hooks provided.
)
NOTE: THE SASH WEIGHT WAS SIZED
FOR THIS SPECIFIC HOOD AND SHOULD
NOT BE EXCHANGED ON ANY OTHER
HOOD.
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13
Chapter 3: Getting Started
Install the Protector PVC
Hood on a Supporting
Structure and Hardboard
Support
!
The Protector PVC Hood is heavy!
Use caution when lifting or moving the
hood.
When installing the Protector PVC Fume Hood onto the
hardboard work surface or benchtop, ensure that the
structure can safely support the combined weight of the
fume hood and any related equipment. The hardboard
support surface should be at least as wide as the hood to
properly support it. The hardboard surface is
mounted flush with the back of the fume hood: this
will provide the correct spacing under the air foil for
proper bypass airflow. The hardboard support
surface has a cutout to avoid the drain trough.
!
WARNING: It is important to support 1) the
rear of the hood with a cross support for the
bottom of the hardboard surface. 2) Install the
cross supports after the base cabinets and
hardboard support are leveled.
The following are instructions for mounting a cross
support, and installing the hardboard support:
1. Level the base cabinets and the hardboard
surface. The hardboard surface should be
placed flush with the back of the fume hood
as shown in Figure 3-2. The hardboard
surface has a cutout to allow for clearance
around the rear washdown drain trough.
2. Scribe a line on the wall or back of the base
cabinet to locate the cross support under the
hardboard surface.
3. Mount the cross support by attaching it to
the wall or base cabinet.
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Chapter 3: Getting Started
4. Anchor cabinet(s) with seismic restraints if
required by the local code in your area.
Step 4
Step 5
Figure 3-1
5. Secure the hardboard surface to the top of
the base cabinet(s) using adhesives with the
Solvent Storage Cabinets(s) or mechanical
fasteners with the Acid Storage Cabinet(s).
Be sure the PVC Hood drain trough is
accounted for in the relief area of the
hardboard top. See figure 3-2.
6. After completing step 5, apply a sufficient
quantity of adhesive to the top surface of the
hardboard.
7. Place the hood on top of the work surface
and cross support.
8. Place heavy weights on the inside of the
fume hood for approximately 24 hours. This
provides a proper bond of the adhesive.
Protect the hood’s integral work surface
from possible damage by wrapping any
weighted material first.
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Chapter 3: Getting Started
Rear Wall
Place Cross
Support Here
Figure 3-2
16
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Chapter 3: Getting Started
Connecting to the Protector
PVC Hood Exhaust System
!
WARNING: The weight of the stainless steel or
PVC exhaust ductwork system must be
supported independently of the hood
superstructure. Do not allow this weight to be
supported by the hood structure as damage to
the hood may occur.
The stainless steel or PVC exhaust
connection should be installed by a
qualified HVAC contractor.
The exhaust connection on your hood
has been designed for 12" nominal pipe
(12.75" OD) to allow for minimum static
pressure loss with proper transport
velocities away from the hood. Consult
Labconco Customer Service should you
require help sizing your blower for the
exhaust volume and total system static
pressure loss.
!
The selected exhaust duct material
must be fabricated out of type 1
unplasticized polyvinyl chloride or
type 316 stainless steel material. The
duct should be fully welded in the case
of the stainless steel material or
solvent bonded in the case of polyvinyl
chloride so that it does not have any
cracks or holes where Perchloric acid
salts or acids can collect.
The exhaust duct system for a PVC
Fume Hood should be run in a vertical
position and feature horizontal runs
only where it cannot be avoided.
Should a horizontal run be a part of
your exhaust system, it should be
sloped downward toward the hood to
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17
Chapter 3: Getting Started
prevent the pooling of the washdown
water and perchloric acid salts or
acids in the duct.
!
CAUTION: PVC Fume Hoods must
never be manifolded into a common
exhaust system. They require a
dedicated exhaust system.
Connecting to the Exhaust
Washdown
The entire exhaust duct system must have an adequate
washdown system. This includes the exhaust ductwork
located between the exhaust blower and the hood
structure, the exhaust blower, and any ductwork located
on the outlet side of the blower. Wash rings are
recommended to be placed in the exhaust duct system
approximately every 8 to 10 feet and after every change
in direction to provide an adequate washdown. A drain
should be provided in your exhaust blower and this
washdown water and effluent material can be drained
from the exhaust blower back directly into the exhaust
duct for disposal. The PVC Hood was designed with an
auxiliary port plugged at the factory, and it is to be
connected to the washdown valve system to provide
water to the wash rings. The plug is located on top of
the hood near the first washdown nozzle. Plumb from
the plugged connector with a 3/8" rigid polyethylene,
copper, or stainless steel line.
Connecting to the
Washdown Drain
The Protector PVC Hood has been supplied with a 2"
nominal (2.375" OD) PVC pipe drain. Connect the 2"
pipe to your floor drain. Be sure the connection is
either fully solvent bonded or leak tight. See Figure 32.
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Chapter 3: Getting Started
Connecting the Electrical
Supply Source to the
Protector PVC Fume Hood
Prior to connecting any electrical wiring to the fume
hood structure, refer to the hood identification plate for
the proper electrical requirements of your specific
model.
!
WARNING: The building electrical supply system
for Protector PVC Hoods should include overload
protection. A switch or circuit breaker should be in
close proximity to the equipment and within easy
reach of the operator. The switch or circuit breaker
is to be marked as the disconnecting device for the
equipment. Consult the 2002 edition of the National
Electrical Code for proper installation.
The identification plate, model number, serial number,
and electrical connection boxes are accessible from the
front of the fume hood by removing the front panel. See
Figure 3-3.
The Protector PVC Hood is normally wired for 115
Volt, 60 Hz, 20 Amp or 230 Volt, 50 Hz, 10 Amp
electrical services. The number of circuits varies
depending on the model. All of the electrical
connections are terminated at the single point internal
junction box for hook-up by a qualified electrician. The
single point internal junction box is used for the
connection of the lights, blower, and duplex outlets.
Refer to the wiring diagram for your Protector PVC
Hood in Appendix C: Protector PVC Fume Hood
Specifications.
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Chapter 3: Getting Started
Primary I.D.
Plate
Internal
Junction Box
Secondary
I.D. Plate
Figure 3-3
All wiring for the fume hood
SHOULD be performed by a licensed
electrician, and conform to all local
codes. In most cases, the hood will
require the use of shielded conduit to
protect the wiring into the hood. The
grounding connection shall not be
made to the terminal box cover.
The fluorescent light has been mounted outside the top
liner panel and is sealed from vapors inside the hood
structure. To change the fluorescent light bulbs in your
hood, you must first remove the front panel from the
hood. Next remove the knockout plugs holding the
light fixture in place. Lift fixture up.
The fluorescent lights are now fully exposed and ready
for service. While the fixture is in this position, replace
the defective bulbs, and reassemble.
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Chapter 3: Getting Started
Connecting the Service
Lines to the Protector PVC
Fume Hood
The hoods with service fixtures have been plumbed
from the valve to the hose connector or gooseneck for
your installation convenience. Supply tubing shall be
provided by the qualified installer. Tubing can enter
the hood from above, through the back, or through the
work surface to make these connections to the service
fixtures.
!
NOTE: Inspect all fittings for
leakage. Tighten the fittings slightly if
needed.
!
CAUTION: Do not use oxygen with any standard
service fixture. Contact Labconco Customer
Service for oxygen fixture information.
Should access to the hood plumbing fixture bodies be
required, remove the service access plate on the hood
front corner posts by loosening their individual screws.
(See item 11 Figure A-1, page 59) The valve body will
now be fully exposed for any service work that may be
necessary. The service fixtures supplied on your
laboratory hood are designed for use with the following
services:
•
•
Air
Cold Water
•
•
Hot Water
• Vacuum
Natural Gas – See Caution Below
!
WARNING: Contact Labconco Customer
Service directly before using any service other
than those listed above in these valves to assure
full compatibility.
!
CAUTION: Natural gas should be used only in
the service fixture that has been pre-plumbed
with brass tubing. Sulfur content of the gas
could cause deterioration of standard copper
supply lines.
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Chapter 3: Getting Started
Connecting the Washdown
Control Fixture to the
Protector PVC Fume Hood
The control valve used for the washdown system is
located on the left hand side of the hood superstructure,
upper fixture position. The valve assembly has been
fully plumbed to the internal spray nozzles and a
connection point has been left for the addition of the
water line used on exterior mounted wash rings. This
connection is located in the upper left hand portion of
the fume hood structure near the first washdown nozzle.
The supply line for the washdown control valve,
features 3/8" diameter copper tubing. A qualified
installer shall provide the supply line tubing.
Certifying the Protector
PVC Fume Hood
The combination of your laboratory hood, exhaust
ductwork, and exhaust blower gives you the flexibility
to change the airflow at the sash opening of your hood.
To determine the actual face velocity at the sash
opening, airflow velocity readings will need to be
taken. This should be done across the sash opening of
the hood in accordance with the Industrial Ventilation
Manual section on laboratory hoods. (See Appendix D –
Reference) Labconco recommends an average face
velocity at the sash opening of 80 to 100 feet per
minute.
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Chapter 3: Getting Started
Your Protector PVC Fume Hood has been tested at the
factory per ASHRAE 110-1995. All hoods achieve an
“as manufactured rating” of less than 0.10 part per
million (ppm) at 4 liters per minute (lpm), (AM <0.10).
(Consult Labconco for individual fume hood rating.)
For “field use” ASHRAE testing, contact Labconco
Ventilation Ventures Team or Customer Service for a
certified on-site contractor.
!
NOTE: Face velocity profiles and
smoke testing should be done
periodically to ensure safe
performance.
Your Next Step
After your fume hood has been installed and certified,
you are ready to proceed to Chapter 4: Performance
Features and Safety Precautions.
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Chapter 3: Getting Started
24
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CHAPTER 4
PERFORMANCE
FEATURES AND
SAFETY
PRECAUTIONS
Performance Features:
Your Protector PVC Perchloric Acid Fume Hood
has been engineered to efficiently ventilate and
remove Perchloric acid fumes. The Protector PVC
Acid Digestion Fume Hood has been engineered to
efficiently ventilate and remove acid fumes of all
kinds (excluding Perchloric acid) including
hydrofluoric acid (HF). The Protector PVC Acid
Digestion Hood must not be used with Perchloric
acid as it can react with the Lexan sash. The
Protector PVC Fume Hoods are designed to provide
a flow of air sufficient to extract the acid fumes
from within the work area and keep them away
from the operator to avoid ingestion, inhalation, or
skin contact.
The hood interior is constructed of seamless PVC
with coved interior corners. The hood also features
an integral washdown system, which helps prevent
the accumulation of perchlorates or acids. The
smooth interior finish compliments the washdown
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Chapter 4: Performance Features and Safety Precautions
system as there are no screws or hollow fasteners
present that could harbor undesirable residue.
The Protector PVC Fume Hood has been
engineered to allow you, the customer, the
maximum work area and personnel safety. The bypass air configuration on the Protector PVC Fume
Hoods is totally dependent on air being supplied to
the hood from its surrounding environment for
proper operation.
As stated previously, the Protector PVC Perchloric
Acid Hood is designed to handle Perchloric acid
operations of all types, while the PVC Acid
Digestion Hood is designed to handle acids of all
kinds (excluding Perchloric acid) including
hydrofluoric acid (HF). Usage of materials other
than the specific acids mentioned above is not
recommended. Perchloric acid is a strong oxidizing
agent, and should not be used in combination with
any organic material as the possibility of a
hazardous chemical reaction or explosion could
develop.
The integral washdown system in either PVC Fume
Hood allows the operator the ability to wash behind
the baffle and ensure that a build-up of Perchloric
salts or other acids does not develop in that location.
All of the washdown water from the internal spray
nozzles is contained behind the baffle and does not
interfere with normal operations being performed
inside the hood. The washdown water is collected
in the hood drain trough.
The hood liner must be washed down manually by
the operator. The internal washdown system can be
connected to the wash rings used in your hood
exhaust system. The water used in the spray wash
rings is collected in the hood drain trough once it
has been allowed to flow down and cleanse the duct
thoroughly.
!
26
WARNING: It is recommended that
the PVC Hood be washed down
thoroughly after every usage for 10
minutes, at least once a day.
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Chapter 4: Performance Features and Safety Precautions
1. Unique sash provides maximum visibility of
32.15" high while conserving energy by
limiting sash travel to 28". Vertical-rising
sash may be raised from a closed to 28"
operating height. Exhaust volume and blower
sizing are based on the 28" height. Optional
sash stops are available to limit sash height and
reduce energy usage. The PVC Perchloric Acid
Hood has a glass sash specifically used for
Perchloric Acid. The PVC Acid Digestion
Hood has a Lexan sash specifically used for all
acids (excluding Perchloric acid) including
hydrofluoric acid (HF). NOTE: Hydrofluoric
acid will etch or fog standard plate glass, but not
Lexan plastic.
2. By-pass airflow design ensures relatively stable
face velocities.
3. Large usable interior work depth and
interior height of 48" provides ample working
space.
4. Baffle directs airflow to the rear of the interior
to provide efficient airflow. The baffle may be
removed for cleaning purposes only.
5. Exterior access cover plates are removable for
easy access to plumbing valves when access
through the sides is not available.
6. Lift-Away™ front panel provides easy access
to electrical wiring, sash weights, and lighting
fixtures.
7. Energy efficient fluorescent lighting is located
behind a laminated safety glass shield mounted
to the top of the hood. The factory-wired
lighting is serviceable from outside the hood
cavity.
8. Low-mounted, factory-wired light and
blower switches are ADA compliant.
9. Clean-Sweep™ air foil allows air to sweep the
work surface for maximum containment.
10. Streamlined corner posts provide maximum
visibility and the flexibility to add services;
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Chapter 4: Performance Features and Safety Precautions
services are most easily added at the factory,
because of the PVC liner.
11. All hoods are factory-prepared for up to 7
service fixtures. Additional fixtures are
available only as a factory special. Liner hole
drilling is required to add another fixture in the
field.
12. One duplex electrical receptacle is mounted
on the right corner post. Receptacles are
factory-wired to hood single point junction box.
Additional electrical receptacles are available as
factory or field installed.
13. PVC interior liner is seamless PVC with coved
interior corners and integral work surface.
14. Accessory Guardian™ Digital Airflow
Monitor or Guardian Jr. Monitor
continuously monitors face velocity. An
audio/visual alarm alerts the user to low airflow
conditions. The right corner post is factory
prepared to accommodate the Guardian Monitor
(sold separately).
15. Optional Energy-Reducing A-Style
Combination Sash Models. These
combination sashes allow the operator to use the
hood with sashes either half open vertically or
horizontally to conserve energy. Optional sash
stops prevent raising the vertical sash above the
half-open and fully closed positions unless
manually defeated by the operator.
16. Outside frame of epoxy-coated steel and
galvanized steel is durable and corrosion
resistant.
17. Exhaust connection. The hood features 12"
(12.75" OD pipe) PVC exhaust connections
sized to allow for a minimum static pressure
loss through the hood structure while providing
a good transport velocity through the exhaust
system.
18. Solid hardboard support provided to support
the integral PVC bottom.
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Chapter 4: Performance Features and Safety Precautions
19. Optional Ceiling Enclosure Kits are available
for a decorative facade between the hood and
the ceiling.
20. Optional Sash Stops provide a means of
controlling the operating height of the sash.
21. Washdown control fixture. Located on the left
hand side of the hood superstructure, this valve
controls the water flow to the integral
washdown spray nozzles. The nozzles are
located behind the hood baffle and washdown
areas in the hood, which are inaccessible
without removing the baffle. The control fixture
can also be set up to control the washdown
system used in your exhaust ductwork. To do
this, connect the water line from your external
washdown system to the plugged connection
provided on the top of the internal washdown
assembly.
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Chapter 4: Performance Features and Safety Precautions
17
16
4
6
7
5
21
11
20
12
13
14
10
1, 15
9
8
30
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Chapter 4: Performance Features and Safety Precautions
Safety Precautions
!
Although the laboratory hood has
been engineered to maintain
optimum operator safety, caution
should always be used while
working in the hood. Prior to
using the hood, check to make sure
that the exhaust blower is
operating and that air is entering
the hood at its specified face
velocity.
Do not place any hot items directly
on the PVC Hood integral work
surface.
Always keep the ventilation system
in operation when using any heat
generating source inside the PVC
Hood. Severe damage to the PVC
Hood liner and PVC baffle can
occur if the ventilation system is
turned off before the heat load
inside has been reduced to a safe
level.
)
USE GOOD HOUSEKEEPING IN
THE HOOD AT ALL TIMES.
CLEAN UP SPILLS
IMMEDIATELY WITH A MILD
DETERGENT. PERIODICALLY
CLEAN HOOD INTERIOR,
INCLUDING FLUORESCENT
LIGHT GLASS PANEL.
REPLACE BURNED OUT LIGHT
BULBS TO MAINTAIN
MAXIMUM ILLUMINATION.
DO NOT OVERLOAD THE WORK
SURFACE WITH APPARATUS
OR WORK MATERIAL. THE
SAFE OPERATION OF THE
LABORATORY HOOD IS BASED
UPON HAVING PROPER
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Chapter 4: Performance Features and Safety Precautions
AIRFLOW THROUGH THE
STRUCTURE. DO NOT PLACE
LARGE, BULKY OBJECTS SUCH
AS BLOCK HEATERS,
DIRECTLY ON THE HOOD
WORK SURFACE. INSTEAD,
ELEVATE THE OBJECT 2" TO 3"
ON BLOCKS TO ALLOW A
FLOW OF AIR UNDER THE
OBJECT AND INTO THE LOWER
REAR BAFFLE EXHAUST SLOT.
ENSURE BLOCKS ARE LEVEL
AND SECURED IN PLACE.
!
Blocking the bottom of the baffle
at the rear of hood will change the
airflow pattern in the hood causing
turbulence and possible leakage at
the face of the hood. (Don’t store
containers or supplies against
baffles, as this will affect airflow
through the hood).
Avoid placing your head inside
hood. Keep hands out of hood as
much as possible.
Always work as far back in hood
as possible. It is best to keep all
chemicals and apparatus 6" inside
the front of the hood.
Perchloric acid use in PVC
Perchloric Acid Hoods is
recommended. Perchloric acid is
not allowed in PVC Acid Digestion
Hoods.
Wash the hood down thoroughly
after each usage or at least once a
day for a period of 10 minutes.
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Chapter 4: Performance Features and Safety Precautions
!
Safety requires regular washdown
of fume hood interior, ductwork,
and the movement of air
preferably after each experiment.
The baffle on this hood may be
removed for access to all surfaces
as a follow-up to washdown
procedures. All deposits should be
flushed away. Utilize lowest
quantities of Perchloric acid or
acids to fit procedural
requirements.
The use of Perchloric acid creates
extreme inherent hazard because
of its certain characteristics. Since
there is a constant danger of
explosion when using Perchloric
acid, it is recommended that
laboratories employing its use in
any quantity become well
informed of its characteristics.
Only personnel fully cognizant
with the properties of Perchloric
acid and the hazards associated
with it should perform Perchloric
acid procedures.
The PVC Perchloric Acid Hood is
specially designed for use with
Perchloric acid. It should not be
used as a general-purpose
laboratory fume hood. Do not
work with organic materials in the
PVC Perchloric Acid Fume Hood.
Perchloric acid when used with
organic material can cause a
hazardous chemical reaction or
explosion. Because of extreme
hazards, miscellaneous work
should not be performed in this
hood. Do not store chemicals in a
fume hood.
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Chapter 4: Performance Features and Safety Precautions
All apparatus used within the hood
interior should have inorganic
coatings and lubricants.
Although, the Protector PVC
Perchloric Acid Fume Hoods
conform to all generally accepted
standards of design for this type of
equipment, we accept no
responsibility or liability for
accidents that may possibly occur
in the use of Perchloric acid in our
hoods.
Radioisotope materials are not
recommended for use in PVC
Hoods.
)
!
AVOID CROSS DRAFTS AND
LIMIT TRAFFIC IN FRONT OF
THE HOOD. AIR
DISTURBANCES CREATED
MAY DRAW FUMES OUT OF
THE HOOD.
The use of heat-generating
equipment in this hood without the
exhaust system operating properly
can cause damage to the hood.
The Protector PVC Laboratory
Hoods should be certified by a
qualified certification technician
before initially used. The hood
should be re-certified whenever it
is relocated, serviced or at least
annually thereafter.
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Chapter 4: Performance Features and Safety Precautions
Ensure that the hood is connected to
electrical service in accordance with
local and national electrical codes.
Failure to do so may create a fire or
electrical hazard. Do not remove or
service any electrical components
without first disconnecting the hood
from electrical service. Proper
operation of the fume hood depends
largely upon the hood’s location and
the operator’s work habits. Consult
the Reference Manual in Appendix D.
Your Next Step
After you understand the theory of operation and safety
precautions, you are ready to proceed to Chapter 5:
Using Your Protector PVC Fume Hood.
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Chapter 4: Performance Features and Safety Precautions
36
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CHAPTER 5
USING YOUR
PROTECTOR PVC
FUME HOOD
Operating the VerticalRising Glass Sash
P
Because of the Protector PVC Perchloric Acid Hood’s
counterbalanced sash mechanism, it will take only a
few pounds of force to move the sash up or down, and
you can operate the sash smoothly with one or two
hands positioned any where along the handle. The
glass sash is suitable for use with Perchloric acid. The
vertical-rising sash may be raised to a maximum 28"
operating height. The airflow requirements should be
sized for the 28" operating height; if using sash stops
then the airflow requirements can be reduced by
approximately 40% at 18" or approximately 50% at
15".
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Chapter 5: Using Your Protector PVC Hood
A
Operating the VerticalRising Lexan Sash
Because of the Protector PVC Acid Digestion Hood
counterbalanced sash mechanism, it will take only a
few pounds of force to move the sash up or down, and
you can operate the sash smoothly with one or two
hands positioned any where along the handle. The
Lexan sash prevents fogging caused by hydrofluoric
acid (HF). The Lexan sash is suitable for acids other
than Perchloric acid, which can react with the Lexan
plastic. The airflow requirements should be sized for
the 28" operating height, if using sash stops then the
airflow requirements can be reduced by approximately
40% at 18" or approximately 50% at 15".
P
P
A
Operating the Blower
A
Operating the Lights
Your Protector PVC Fume Hood utilizes a remote style
blower, which can be activated by turning the blower
switch to “ON.” You can validate the hood
performance by watching smoke drawn into the hood
face opening.
Your Protector PVC Fume Hood utilizes a factorywired fluorescent light to illuminate the hood interior.
Simply turn the light switch to “ON” to operate.
P
A
Operating the Washdown
Control Valve
Your Protector PVC Fume Hood has a washdown
control valve located on the upper left-hand side that
controls water to the washdown spray nozzles. The
nozzles are located behind the hood baffle and will
washdown areas in the hood, which are unaccessible
without removing the baffle. The washdown control
system can also be set up to control the washdown rings
used in your exhaust ductwork. This is done by
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Chapter 5: Using Your Protector PVC Perchloric Acid Fume
connecting the water line to the plugged connection on
top of the washdown hood system.
Working in your Protector
PVC Fume Hood
Planning
• Thoroughly understand procedures and
equipment required before beginning work.
• Arrange for minimal disruptions, such as room
traffic or entry into the room while the hood is
in use.
Start-up
• Turn on fluorescent light and hood blower.
• Slowly raise the sash.
• Check the baffle air slots for obstructions.
• Allow the hood to operate unobstructed for 5
minutes.
• Wear a long sleeved lab coat and rubber gloves.
Use protective eyewear. Wear a protective
mask if appropriate.
Loading Materials and Equipment
• Only load the PVC Hood materials required for
the procedure. Do not overload the hood. Only
use Perchloric acid in the PVC Perchloric Acid
Fume Hood.
• Radioisotope materials are not recommended
for use in these PVC Hoods. Consult your
Safety Officer should you have any questions.
• Do not obstruct the front air foil, or rear baffle
slots.
• Large objects should not be placed close
together and spaced above the liner bottom to
permit airflow to sweep under the equipment.
• After loading the hood, wait one minute to
purge airborne contaminants from the work
area.
Work Techniques
• Keep all materials at least 6 inches inside of the
sash, and perform all contaminated operations
as far to the rear of the work area as possible.
Segregate all clean and contaminated materials
in the work area.
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Chapter 5: Using Your Protector PVC Hood
•
Avoid using techniques or procedures that
disrupt the airflow patterns of the hood.
Final Purging
• Upon completion of work, the hood should be
allowed to operate for two to three minutes
undisturbed, to purge airborne contaminants
from the work area before shutting down
blower.
Unloading Materials and Equipment
• Objects in contact with contaminated material
should be surface decontaminated before
removal from the hood.
• All open trays or containers should be covered
before being removed from the hood.
Final Washdown Procedure
• Water washdown or flooding the surfaces with
water is standard practice and results in
reduction of contamination on the PVC liner
material due to Perchloric acid salts or acids.
• Proper operation of your PVC Fume Hood
requires that you wash the fume removal system
down sufficiently to ensure that there is no build
up of Perchloric acid salts or acids within the
entire system.
• Normal washdown procedures suggest that you
run the wash system in the exhaust duct with the
fan on for approximately 1-2 minutes, and then
with the fan off for approximately 10 minutes to
thoroughly clean this portion of the exhaust
system.
• In addition to this, the internal hood spray
nozzles should be activated for approximately
10 minutes after the completion of your
procedures to clean behind the baffle in the
hood. Work areas in front of the baffle in the
hood will need to be manually cleaned by the
operator. Because the volume of Perchloric acid
salts or acids can vary greatly due to specific
procedures and workloads, you should consult
your in-house Safety Officer for specific rules
and frequency requirements for washing down
your total system.
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Chapter 5: Using Your Protector PVC Perchloric Acid Fume
Shutdown
• Only turn off the fluorescent light and hood
blower if final washdown is complete, and then
close the sash.
Your Next Step
After you understand how to operate and work in the
fume hood, you are ready to proceed to Chapter 6:
Maintaining Your Protector PVC Fume Hood.
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Chapter 5: Using Your Protector PVC Hood
42
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CHAPTER 6
MAINTAINING YOUR
PROTECTOR PVC
FUME HOOD
Now that you have an understanding of how to work in
the fume hood, we will review the suggested
maintenance schedule and the common service
operations necessary to maintain your fume hood for
peak performance.
!
Only trained and experienced
certification technicians should
perform some of the service
operations after the fume hood has
been properly decontaminated and
washed down. DO NOT attempt to
perform these operations if you are
not properly trained. The wrench icon
precedes the service operations that
require qualified technicians.
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Chapter 6: Maintaining Your Protector PVC Hood
Routine Maintenance
Schedule
Daily
• Washdown PVC liner and PVC baffle surfaces
(if used daily) from Perchloric acid salts or acids
as outlined in Chapter 5 Final Washdown.
Weekly
• Using ordinary dish soap to clean the surface
inside of the fume hood, and the work surface.
• Using an appropriate glass cleaner, clean the
sash and all glass surfaces.
• Operate the fume hood blower, noting the
airflow velocity through the hood using a source
of visible smoke.
Monthly (or more often as required)
• Determine the actual face velocity through the
sash opening of the hood where the average
reading should be at the specified velocity. (Use
calibrated thermal anemometer or other
approved apparatus).
• Using a damp cloth, clean the exterior surfaces
of the hood, particularly the front of the hood, to
remove any accumulated dust.
• Check all service valves, if so equipped, for
proper operation.
• The hood baffle should be checked for
blockages behind it to ensure that the hood is
maintaining proper airflow.
• All weekly activities.
Annually
• Replace the fluorescent lamps.
• Have the fume hood recertified by a qualified
certification technician. See Certifying the
Protector PVC Fume Hood in Chapter 3.
• All monthly activities.
Biannually
• The sash assembly should be checked to ensure
proper operation and to make sure there are no
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Chapter 6: Maintaining Your Protector PVC Hood
signs of abnormal wear on the sash pulleys, cables
and clamps.
Routine Service Operations
Front Panel Removal:
1. Simply lift the front panel up and then away from
the hood to provide access to the top.
Changing the Fluorescent Lamp:
1. Turn light switch to “OFF.”
2. Remove the front panel as noted earlier.
3. Reach over the front header of the hood and remove
the knock out plugs at both ends of fixture. Lift
fixture up.
4. Remove the fluorescent lamp by pushing it out of
the spring-loaded lamp socket and swinging it out
of the other lamp socket.
5. Install the new lamp by reversing the removal
procedure.
S
A
Your Next Step
After you understand the maintenance procedures, you
are ready to proceed to Chapter 7: Modifying Your
Protector PVC Fume Hood.
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Chapter 6: Maintaining Your Protector PVC Hood
46
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CHAPTER 7
MODIFYING YOUR
PROTECTOR PVC
FUME HOOD
There are several ways to modify the fume hood for
your individual requirements. These include the
addition of work surfaces, service fixtures, air monitor,
distillation grids, electrical duplex outlets, ceiling
enclosures, and rear panels.
Installing Hardboard
Support Surface
Your Protector PVC Fume Hood requires a hardboard
support surface to properly support the integral work
surface of the one-piece PVC liner. The hardboard
support is shipped and included with the PVC Fume
Hood. Be sure to secure the hardboard support per the
instructions on pages 14 and 15 in Chapter 3.
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Chapter 7: Modifying Your Protector PVC Hood
Installing Ceiling
Enclosures above the Fume
Hood
Your Protector PVC Fume Hood has mounting holes to
accept a ceiling enclosure to close off the area between
the top of the hood and the ceiling. Contact Labconco
Customer Service for ordering information.
Figure 7-1
Installing Rear Panels
Behind the Fume Hood
Your Protector PVC Fume Hood can be modified to
add a rear panel behind the fume hood when the fume
hood is placed on an island. Contact Labconco
Customer Service for ordering information.
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Chapter 7: Modifying Your Protector PVC Hood
Installing Additional Service
Fixtures
Additional service fixtures can be installed. The fume hood
is factory set to accept up to four valves per side, but the liner
is not drilled for extra fixtures. Contact Labconco Customer
Service for information.
Figure 7-2 Knob
Figure 7-3 Valve
Figure 7-4 Hose Connector
Installing Guardian™ Digital
Airflow Monitor or Guardian™
Jr. Airflow Monitor
The Guardian Digital Airflow Monitor P/N 9743211
continuously monitors face velocity through the fume hood
opening. The Guardian Jr. Airflow Monitor P/N 9743202
continuously monitors airflow through the exhaust. The fume
hood right corner post is factory prepared to mount either
monitor. To mount the Guardian Digital Monitor the hood
liner needs a 0.50" diameter hole mounted on the right side; 2"
above the sash handle at its uppermost height and 6" behind
the sash. Contact Labconco Customer Service to order.
Figure 7-5
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Figure 7-6
49
Chapter 7: Modifying Your Protector PVC Hood
Sash Stop Kit – Field
Installation
The Sash Stop P/N 9724500 restricts how far a verticalrising sash may be opened. This small plastic device
may be easily field installed on the fixture corner post
of any fume hood. The metal bracket is simply mounted
to the sash handle.
Sash Stop
Sash Handle
Figure 7-7
Installing an Electrical
Duplex Outlet
Your Protector PVC Fume Hood can be ordered with
duplex outlets, however, if you ordered a model without
an electrical duplex outlet you can have one installed in
the field by a qualified electrician. Contact Labconco
Customer Service for ordering information. (Not
permitted on explosion-proof hoods.)
Figure 7-8
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Chapter 7: Modifying Your Protector PVC Hood
Your Next Step
After you understand the modifying procedures, you are
ready to proceed to Chapter 8: Troubleshooting.
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Chapter 7: Modifying Your Protector PVC Hood
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CHAPTER 8
TROUBLESHOOTING
Refer to the following table if your fume hood fails to
operate properly. If the suggested corrective actions do
not solve your problem, contact Labconco for
additional assistance.
PROBLEM
CAUSE
CORRECTIVE ACTION
Remote blower and
lights won’t operate
Wires not connected
at junction boxes or
switches.
Check connection of switches.
Check connection to control box on top
of unit.
Circuit breakers
tripped in building
electrical supply.
Reset circuit breakers.
Remote blower
won’t operate, but
lights work
Blower wiring is
disconnected.
Belt broken.
Blower motor is
defective.
Inspect blower wiring and switch.
Fume hood blower
operates but lights
will not operate
Lamp not installed
correctly.
Inspect lamp installation.
Lamp is defective.
Replace lamp.
Lamp circuit breaker
in building is tripped.
Reset the lamp circuit breaker.
Product Service 1-800-522-7658
Replace belt.
Replace blower motor.
53
Chapter 8: Troubleshooting
PROBLEM
CAUSE
CORRECTIVE ACTION
Fume hood blower
operates but lights
will not operate
Lamp wiring is
disconnected.
Inspect lamp wiring.
Defective lamp
ballasts.
Replace lamp ballasts.
Improper user
techniques for the
fume hood.
See “Certifying the Hood” Chapter 3 and
“Safety Precautions” Chapter 4 sections
in the manual. (Ref. Appendix D).
Restriction of the
baffle air slots or –
blockage of the
exhaust outlet.
Remove baffles to ensure that all air slots
and the exhaust outlet are unobstructed.
External factors are
disrupting the fume
hood airflow patterns
or acting as a source
of contamination.
See “Location Requirements” Chapter 2,
“Certifying the Hood” Chapter 3, and
“Safety Precautions” Chapter 4 sections
of this manual. (Ref. Appendix D)
Fume hood has
improper face
velocity.
Have fume hood re-certified and check
remote blower exhaust system. Hood
should have average face velocity of 80100 fpm.
Cable is frayed or
plastic protection is
damaged.
Inspect cable and replace cable if worn or
damaged immediately; otherwise injury
could result.
Pulley bearing is
damaged.
Replace pulley, bearing or add grease.
Cable has slipped off
the pulleys.
Re-install, cable must be replaced
immediately if damaged.
Weight has broken
pulleys.
Replace weight pulleys.
Horizontal-sliding
glass panels have
come off the tracks.
Re-install horizontal-sliding glass on
tracks.
Contaminants
escape outside of
fume hood
Vertical sash no
longer operates
smoothly
Combination AStyle sash no longer
operates smoothly
54
Product Service 1-800-522-7658
Chapter 8: Troubleshooting
PROBLEM
Electrical duplex
outlets no longer
have power
Service valves no
longer operate
Spray Nozzles no
longer work
CAUSE
CORRECTIVE ACTION
Vertical-rising sash
frame is distorted.
Place horizontal sliding glass
symmetrically and pull sash down to air
foil. Straighten damaged frame.
Cable is frayed or has
slipped off the
pulleys.
Re-install, cable must be replaced
immediately if damaged.
Wires not connected
or faulty duplex.
Check wire connection or replace duplex.
Circuit breakers
tripped in building
electrical supply.
Reset circuit breakers.
Faulty building
supply.
Inspect building supply shut off valves
and appropriate pressures below 40 PSI.
Valve no longer
operates.
Replace valve and check for leaks.
Supply line or outlet
line has leaks.
Inspect line for leaks and fix any leaking
plumbing connections.
Poor water supply
Inspect building water supply.
Clogged nozzle
Replace spray nozzles.
Product Service 1-800-522-7658
55
Chapter 8: Troubleshooting
56
Product Service 1-800-522-7658
APPENDIX A
PROTECTOR PVC FUME
HOOD COMPONENTS
Illustration A-1 indicate the location of the following
service parts:
Protector PVC Hood Replacement Parts
Item
Quantity
Part No.
1A
1B
1C
1D
1E
1F
1G
3
4A
4B
4C
4D
4E
4F
4G
4H
4I
4J
4K
5
6
7A
7B
7C
7D
7E
8A
8B
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
9823700
9823701
9817000
9817001
9823702
9823703
9818000
9818700 thru 08
9818800
9818801
9818802
9818803
9818804
9818805
9818806
9818807
9818808
9819000
4911100
9825500
9818900
9947100, 01, 02
9818200
9947103, 04, 05
9818100
9818300
9721901
9721900
Description
Valve, Labconco (Water) 1/4" Compression Fitting
Valve, Labconco (Water) 3/8" Compression Fitting
Valve, Labconco 1/4" Compression Fitting (AIR, GAS, VAC, NIT, etc.)
Valve, Labconco 3/8" Compression Fitting (AIR, GAS, VAC, NIT, etc.)
Valve, Labconco Deionized 1/4" Compression Fitting
Valve, Labconco Deionized 3/8" Compression Fitting
Nut, Valve Mounting. (Labconco)
Knobs (GRAY, GRN, BLU, ORG, YEL, RED, WHT, BLK, BRN)
Hose Barb, GRAY – (NEUTRAL OR ARGON)-NOT SHOWN
Hose Barb, GREEN - (COLD WATER)-NOT SHOWN
Hose Barb, BLUE – (GAS)-NOT SHOWN
Hose Barb, ORANGE – (AIR)-NOT SHOWN
Hose Barb, YELLOW – (VACUUM)-NOT SHOWN
Hose Barb, RED – (HOT WATER)-NOT SHOWN
Hose Barb, WHITE – (DEIONIZED WATER) NOT SHOWN
Hose Barb, BLACK–(NEUTRAL OR STEAM) NOT SHOWN
Hose Barb, BROWN – (NITROGEN) NOT SHOWN
Nut, Hose Barb - NOT SHOWN
Gooseneck - PVC
Label, Knob (contains all the labels)
Lens, Knob
115V Duplex Receptacle (GRAY) Right, Left 4' - 6', Left 8' w/ wires
Cover Plate 115V Duplex
115V GFCI Duplex Receptacle (GRAY) Right, 4' - 6', Left 8' w/ wires
Cover Plate, 115V GFCI
Cover Plate, Blank
Lamp, Fluorescent (T8 x 3') – use on 4' & 8' Hoods
Lamp, Fluorescent (T8 x 4') – use on 5' & 6' Hoods
Product Service 1-800-522-7658
57
Appendix A: Protector PVC Hood Components
58
Item
Quantity
Part No.
10A
10B
11A
11B
12A
12B
12C
12D
12E
13A
13B
13C
14
15
16
17
18
19
20
21A
22
23
24
25
26
1
1
1
1
1
1
1
4
4
1
1
1
4
2
2
2
4
4
2
1
1
1
1
1
1
1302300
1327500
9818400
9825100
9810800
9810801
9810802
1916400
1885512
9860000
9860002
9860003
1861400
4949902
9741900
1663200
9742100
1920100
1972100
99463XX
9807600, 02, 03
9724500
1487100
9817001
1549100
Description
Switch, Rocker
Switch, Plug (Fills cutout when switch is not used)
Access Cover
Label, Access Cover (includes all three corner labels)
Side Panel, 24" internal deep hoods – NOT SHOWN
Side Panel, 30" internal deep hoods – NOT SHOWN
Side Panel, 36" internal deep hoods – NOT SHOWN
Nut, Retainer #10-24 – NOT SHOWN
Screw, Machine #10-24 x .75 Truss Head Stainless – NOT SHOWN
Air Foil 4'
Air Foil 6'
Air Foil 8'
Pulley, Front or Rear, 1-3/16 Dia. – NOT SHOWN
Cable, Sash 130" – NOT SHOWN
Sheave, (Rear 8') – NOT SHOWN
Bumper, Rubber – NOT SHOWN (upper sash bumper)
Bronze Bearing, Flanged Rear – NOT SHOWN
Clamp, Cable Replacement – NOT SHOWN
S-Hook – NOT SHOWN (to attach weight to cable)
Wiring Harness, Main
Front Panel, 4', 6', 8'
Sash Stop Kit
Spray Nozzle PVC – NOT SHOWN
Washdown Control Valve
Plastic Tubing 3/8 OD x ¼ ID (125 psi W.P.) (Rigid Polyethylene – PE
– NOT SHOWN)
Product Service 1-800-522-7658
Appendix A: Protector PVC Hood Components
Figure A-1
22
8
11
25
3
1
5, 6
23
4
7
13
1
10, 21
Product Service 1-800-522-7658
59
Appendix A: Protector PVC Hood Components
60
Product Service 1-800-522-7658
APPENDIX B
PROTECTOR PVC HOOD
DIMENSIONS
Protector PVC Hood Model Widths
4'
6'
8'
A
48.00
72.00
96.00
B
38.25
62.25
86.25
Dimensions in inches. CAD layouts available upon request.
Product Service 1-800-522-7658
Figure B-1
61
Appendix B: Protector PVC Hood Dimensions
62
Product Service 1-800-522-7658
APPENDIX C
PROTECTOR PVC
HOOD
SPECIFICATIONS
Environmental Conditions
•
•
•
•
•
•
•
Indoor use only.
Maximum altitude: 10,000 feet (3,048 meters).
Ambient temperature range: 41° to 104°F (5° to
40°C).
Maximum relative humidity: 80% for
temperatures up to 88°F (31°C), decreasing
linearly to 50% relative humidity at 104°F
(40°C).
Main supply voltage fluctuations not to exceed
±10% of the nominal voltage.
Transient over-voltages according to Installation
Categories II (Over-voltage Categories per IEC
1010). Temporary voltage spikes on the AC
input line that may be as high as 1500V for
115V models and 2500V for 230V models are
allowed.
Used in an environment of Pollution degrees 2
(i.e., where normally only non-conductive
atmospheres are present). Occasionally,
however, a temporary conductivity caused by
condensation must be expected, in accordance
with IEC 664.
Product Service 1-800-522-7658
63
Appendix C: Protector PVC Hood Specifications
64
Product Service 1-800-522-7658
APPENDIX D
REFERENCES
Many excellent reference texts and booklets are
currently available. The following is a brief listing:
Laboratory Ventilation Standards
Federal Register 29 CFR Part 1910
Non-mandatory recommendations from “Prudent
Practices.”
• Fume hoods should have a continuous monitoring device
• Face velocities should be between 60-100 linear feet per
minute (lfpm)
• Average 2.5 linear feet of hood space per person
Occupational Health and Safety
U.S. Department of Labor
200 Constitution Avenue N.W.
Washington, DC 20210
(202) 523-1452
Industrial Ventilation-ACGIH
• Fume hood face velocities between 60-100 lfpm
• Maximum of 125 lfpm for PVC Hood hoods
• Duct velocities of 1000-2000 fpm for vapors, gasses and
smoke
• Stack discharge height 1.3-2.0 x building height
• Well designed fume hood containment loss, <0.10 ppm
Industrial Ventilation, A Manual of Recommended
Practice.
24th Edition, 2001
American Conference of Governmental Industrial
Hygienists
1330 Kemper Meadow drive
Cincinnati, OH 45240-1634
(513) 742-2020
Product Service 1-800-522-7658
65
Appendix D: References
ASHRAE 110-1995 Method of Testing Performance of
Fume Hoods
Evaluates fume hood’s containment characteristics
• Three part test: Smoke generation, Face velocity profile,
Tracer gas release @ 4 liters per minute
• Rated As Manufactured (AM), As Installed (AI) and As
Used (AU)
American Society of Heating, Refrigerating, and Air
Conditioning Engineers
1791 Tullie Circle N.E.
Atlanta, GA 30329
(404) 636-8400
ANSI Z9.5-1993 Laboratory Standard
Covers entire laboratory ventilation system.
• Vertical stack discharge @ 2000-3000 fpm
• New and remodeled hoods shall have a monitoring
device
• Ductless hoods should only be used with non-hazardous
materials
• Fume hood face velocities between 80 – 120 fpm
American Industrial Hygiene Association
2700 Prosperity Avenue, Suite 250
Fairfax, VA 22031
(703) 849-8888
SEFA 1-2002
• Fume hood face velocities based on toxicity levels of
chemicals
Class A – 125 to 150 fpm
Class B – 80 to 100 fpm
Class C – 75 to 80 fpm
• Test method – face velocity profile and smoke
generation
Scientific Equipment & Furniture Association
1028 Duchess Drive
McLean, VA 22102
(703) 538-6007
NFPA 45 – 2002 Fire Protection for Laboratories Using
Chemicals
• Laboratory hoods should not be relied on for explosion
protection
• Exhaust air from fume hoods should not be recirculated
• Services should be external to the hood
• Canopy hoods only for non-hazardous applications
• Materials of construction should have flame spread of 25
or less
• 80 to 120 fpm to prevent escape
66
Product Service 1-800-522-7658
Appendix D: References
NFPA 30 – 2000 Flammable and Combustible Liquids
Code
• Approved cabinets may be metal or wood
• Vent location on cabinets are required
• Venting of cabinets not a requirement
National Fire Protection Association
1 Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9101
(800) 344-3555
General References
American Conference of Governmental Industrial
Hygienists. Industrial Ventilation, A Manual of
Recommended Practice, Cincinnati, OH.
ASHRAE Standard Committee. ASHRAE Standard Atlanta:
ASHRAE Publications Sales Department, 1995
British Standards Institution. Laboratory Fume Cupboards.
Parts 1, 2 and 3, London: 1990
Department of Labor, Occupational Safety and Health
Administration, 29 CFR Part 1910, Occupational Exposures
to Hazardous Chemicals in Laboratories, Final Rule. Vol.
55, No. 21. Washington D.C.:1990
DiBerardinis. L. et al. Guides for Laboratory Design, Health
and Safety Considerations. Wiley & Sons, 1987
McDermott, Henry, Handbook of Ventilation for
Contaminant Control, 2nd Edition. Butterworth Publishers,
1985.
Miller, Brinton M. et al. Laboratory Safety: Principles and
Practices. American Society for Microbiology, Washington,
D.C.: 1986
NIH Guidelines for the Laboratory Use of Chemical
Carcinogens. NIH Publication No. 81-2385.
Rayburn, Stephen R. The Foundation of Laboratory Safety,
A Guide for the Biomedical Laboratory. Springer-Verlag,
New York: 1990
Sax, N. Irving and Lewis, JR., Richard J. Rapid Guide to
Hazardous Chemicals in the Workplace. Van Nostrand
Reinhold, 1987.
Product Service 1-800-522-7658
67
Appendix D: References
Schilt, Alfred A. PVC Hood and Perchlorates. The G.
Frederick Smith Chemical Company, Columbus, OH: 1979.
Steere, Norman. CRC Handbook of Laboratory Safety, 2nd
Edition. CRC Press, 1971.
68
Product Service 1-800-522-7658
DECLARATION OF CONFORMITY
Application Council Directive(s):
73/23/EEC, 89/336/EEC, 2002/95/EC (ROHS),
2002/96/EC (WEEE), 2004/108/EC
Standard(s) to which conformity is declared: EN61010-1, EN61326-1, EN55022,
EN61000-3-2/3
Manufacturer’s Name:
Labconco Corporation
Manufacturer’s Address:
8811 Prospect Avenue
Kansas City, MO 64132 USA
Importer’s Name:
See Shipping/Customs Documents
Importer’s Address:
See Shipping/Customs Documents for your equipment
Type of Equipment:
Laboratory Equipment Protector Laboratory Hoods
Protector PVC Perchloric Acid Fume Hood:
Model No.: 4882300
4' Protector PVC Perchloric Acid Hood
4882400
4' Protector PVC Acid Digestion Hood
7282300
6' Protector PVC Perchloric Acid Hood
7282400
6' Protector PVC Acid Digestion Hood
9682300
8' Protector PVC Perchloric Acid Hood
9682400
8' Protector PVC Acid Digestion Hood
Serial No.:
Various – See Individual Declaration
Year of Manufacture: 2002 and subsequent
I, the undersigned, hereby declare that the equipment specified above conforms to the
above Directive(s) and Standard(s).
See individual Declaration of Conformity which
will be signed by the importer for your country.
Place:
_______________________________________
(Signature)
Date:
_______________________________________
(Full Name)
_______________________________________
(Position)
Labconco P/N 36960-30, Rev. A, ECO E344
Product Service 1-800-522-7658
69
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