Labconco Paramoun Ductless Enclosures User Manual

Labconco Corporation 8811 Prospect Avenue Kansas City, MO 64132-2696 800-821-5525, 816-333-8811 FAX 816-363-0130 E-MAIL labconco@labconco.com HOME PAGE www.labconco.com
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User’s Manual
Paramount® Ductless Enclosures
Models
69632 Series, 2' Widths 69633 Series, 3' Widths 69634 Series, 4' Widths 69635 Series, 5' Widths
69636 Series, 6' Widths
Please read the User’s Manual before operating the equipment.
Copyright © 2008, 2009, 2010, 2015 Labconco Corporation. All rights reserved.
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. Glassware is not warranted from breakage when dropped or mishandled.
The warranty for Paramount® Ductless Enclosures 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.
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.
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 1-800-821­5525 or 1-816-333-8811, between the hours of 7:00 a.m. and 6:00 p.m., Central Standard Time.
Part #6968600, Rev. E
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CHAPTER 1: INTRODUCTION 1
CHAPTER 2: PREREQUISITES 3
Support and Stability Requirements 3 Location and Air Current Requirements 4 Exhaust and Blower Requirements 4 Electrical Requirements 6 Space Requirements 6
CHAPTER 3: GETTING STARTED 7 Unpacking the Enclosure 8
Set Up the Ductless Enclosure on a Supporting Structure and Work Surface 8 Install Carbon Filters and/or HEPA Filters 11 Connect the Electrical Supply 12 Set Filter Life and Filter Check Timers 12 Initial Safety-First™ Vapor Sensor Warm Up Period 13 Reset or Change the Airflow Face Velocity (If Necessary) 13 Validate the Enclosure 14 Seal the Enclosure to the Work Surface 14 Connecting to the Exhaust System (If Applicable) 14
CHAPTER 4: PERFORMANCE FEATURES AND SAFETY
High Performance Containment 17 Safety-First™ Vapor Sensor 18 Smart-Flow Airflow Monitor 19 Quiet, Energy-Efficient ECM Impeller 19 Audible/Visual Alarms 19
Large Control Panel LCD Display 19
Ergonomic Sloped Front 20 Convenient Filter Replacement 20 Durable Construction 20 Fluorescent Light with Electronic Ballast 20 Utility Iris Ports 20
PRECAUTIONS 15
Maximum Visibility 21 Simple Electrical Connection 21 Safety Precautions 21 Misapplications that Could Result in a Hazardous Situation 24
CHAPTER 5: USING THE DUCTLESS ENCLOSURE 25
Information Center 25 Status Area 26 Operating the Pivoting Sash 26 Starting the Ductless Enclosure 26 The Paramount Touchpad 27 All Program Screens 28 Calibration Program Screens 31 Diagnostic Program Screens 32
User Selectable Features 33 Clock Timer Operation 33 Interval Timer Operation 33 Elapsed Timer Operation 33 Light Lamp Timer and Blower Timer 34 Blower Operation 34 Enclosure Set Up 34 Units of Measure 34 Security Lock 34 Filter Setup Display Options 35 Restoring Software Default Settings 35 Calibration 35 Diagnostic Test Operation 35 If a Check Airflow Activates 36 Resetting the Airflow Alert System 36 Working in the Paramount Ductless Enclosure 36
CHAPTER 6: MAINTAINING THE DUCTLESS ENCLOSURE 38 Routine Maintenance Schedule 38 Determination of When to Replace Carbon Filters 39 Determination of When to Replace HEPA Filters 41 Install Carbon Filters and/or HEPA Filters 42 Set Filter Life and Filter Check Timers 42 HEPA Filter Leak Test 42 Change the Airflow Face Velocity (If Necessary) 44 Initial Certification 44 Re-Certification 44 Fluorescent Light Replacement 45 Motorized Impeller Replacement 47 Main Control Board Replacement 48 Organic Sensor Board Replacement 49
CHAPTER 7: ACCESSORIZING THE DUCTLESS
ENCLOSURE 50
Filters 50 Work Surfaces 51 Work Surface with Deck Mounted Valves, Gooseneck,
and Cupsink 52 Base Stands, Accessory Shelves, Seismic Supports and Hydraulic Lift Base Stands 53 Storage Cabinets 54 Exhaust Transitions 55 Remote Blowers 56 Exhaust Dampers 57 Utility Shelf Kits and Holders 57 Syringe Pump Kit and Detector Tubes 57 Sash Closures 58
CHAPTER 8: TROUBLESHOOTING 59
APPENDIX A: REPLACEMENT PARTS 62
APPENDIX B: PARAMOUNT DIMENSIONS 65
APPENDIX C: SPECIFICATIONS 66
APPENDIX D: QUICK CHART 67
APPENDIX E: ESTIMATED FILTER LIFE CALCULATION 68
APPENDIX F: FILTRATION EFFICIENCY TEST RESULTS 70
Acetone 71 Ethyl Alcohol 72 Isopropyl Alcohol 73 Toluene 74 Hydrochloric Acid 75
1
CChhaapptteerr 11:: IInnttrroodduuccttiioonn
Congratulations on the purchase of a Labconco Paramount® Ductless Enclosure, commonly called a ductless fume hood. Unlike traditional fume hoods, the Paramount Ductless Enclosure is considered green as it conserves energy because it requires no ducting. The Paramount Ductless Enclosure is a self-contained work station that protects the operator from specified vapors and/or particulates released in the work area, through the use of carbon filters and/or HEPA filters. Typical organic solvents, formaldehyde, acid gases, ammonia, amines, particulates, and powders are contained inside the enclosure to protect the operator and then filtered. Purified air is drawn from the filters and returned to the room. Vapors are adsorbed on activated carbon filters or impregnated carbon filters and particulates/powders are filtered by the HEPA filter.
Each Paramount Ductless Enclosure includes the Safety-First™ Vapor Sensor that detects filter saturation and alerts the operator to replace the filters. The early warning provided by the Safety-First Vapor Sensor provides the user ample time (5-10% remaining filter life) to complete work in process before changing the filters. The Safety-First Vapor Sensor includes a primary and secondary sensor for redundant monitoring and the sensor detects typical organic solvents, smoke particulates, ammonia gases, formaldehyde gases, and hydrogen sulfide gases. The Paramount Ductless Enclosure is the result of Labconco’s years of experience in the design and manufacture of fume hoods and ductless hoods.
The Paramount Ductless Enclosure offers many unique features to enhance safety, performance, and ergonomics. Safety is illustrated with the Safety­First Vapor Sensor. Performance and Safety are illustrated with validated containment and patented aerodynamic features (U.S. Patent No. 6,461,233). Ergonomics is illustrated with the patented inclined design (U.S. Patent No. D538,941). To take full advantage of all features, please acquaint yourself with this manual and keep it handy for future reference. If you are unfamiliar with how ductless enclosures operate, please review Chapter 4: Performance Features and Safety Precautions, before you begin working.
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Chapter 1: Introduction
2
Even if you are an experienced ductless enclosure user, please review Chapter 5: Using the Ductless Enclosure; it describes the Paramount Ductless Enclosure features so that you can use it efficiently and effortlessly.
The Paramount Ductless Enclosure ships without any filters. Chapter 3: Getting Started and Chapter 6: Maintaining the Ductless Enclosure, must
be followed to properly select and install filters.
This manual and other technical information is available in PDF format at our website: www.labconco.com.
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3
CChhaapptteerr 22:: PPrreerreeqquuiissiitteess
Before you install the Paramount Ductless Enclosure, you need to prepare your site for installation. A dedicated source of electrical power should be located near the installation site to power the ductless enclosure and other apparatus. Additionally, the enclosure should be strategically placed in the lab to provide efficient workflow.
Carefully read this chapter to learn the requirements for your installation site:
The support and stability requirements.
The location and air current requirements.
The exhaust and blower requirements.
The electrical power requirements.
Space requirements.
Refer to Appendix B: Dimensions for complete enclosure dimensions. Refer to Appendix C: Specifications for complete enclosure electrical and
environmental conditions, specifications and requirements.
Support and Stability Requirements
At a minimum, the supporting structure usually consists of a base cabinet or stand and a chemically resistant work surface. Please consider the following:
Work surfaces should be of a thick rigid material that remains stable.
A bench that is rigidly mounted to the floor or fixed to the wall may
be appropriate.
Tubular stands or mobile benches with locking casters may be
appropriate.
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Chapter 2: Prerequisites
4
Location and Air Current Requirements
The Paramount Ductless Enclosures have been designed to contain hazards by negating typical cross drafts and turbulence within the opening. However, it is recommended that the enclosure be placed in an area to avoid:
High traffic areas where walking might cause an air disturbance or be a
nuisance.
Overhead or wall HVAC diffusers, fans, radiators or other lab equipment
producing air currents.
Near doorways or windows that may be opened.
Exhaust and Blower Requirements
The Paramount Ductless Enclosure uses a green, 95% energy efficient, electronically-commutated motorized (ECM) impeller to draw room air past the operator and through the enclosure (see Appendix D for power usage by model). This contaminated air is passed through filters and exhausted out the top of the enclosure. The filtered exhaust air is normally recirculated into the laboratory or may be exhausted outside with the addition of the Canopy Exhaust Connection and remote blower listed in Chapter 7. Contact Labconco for blower sizing assistance for exhausting to the outside. Electrical connections are covered in Chapter 2 for this configuration.
Data for the enclosure’s exhaust volume, noise pressure and face velocity are listed on the next page in chart form for each Paramount Ductless Enclosure model at face velocities of 60, 80, and 100 fpm. All models are shipped to operate at 75-80 fpm, but can be reset by the Safety Officer or certification technician through a password protected menu.
Important Note: If the enclosure is connected directly to a house exhaust system, an adjustable damper (or valve) must be installed to control the airflow properly. This is equally important when a house exhaust system is controlling multiple ductless enclosures. See Chapter 7 for information on accessories.
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Chapter 2: Prerequisites
5
Model No.
Voltage
Enclosure
Width
Internal
Working
Height
Sash
Opening
Exterior
Depth
Exterior
Height
Face
Velocity
(fpm)
Airflow
Exhaust
Volume
(CFM)
Noise
Pressure
(dbA)
6963200
100-115V
2'
22.7"
9.4"
29"
43.7"
60 80
100
85 115 145
50
54
59
6963220
208-230V
2'
22.7"
9.4"
29"
43.7”
60
80 100
85 115 145
50
54
59
6963300
100-115V
3'
22.7"
9.4"
29"
43.7"
60
80 100
130 175 220
46
52
56
6963301
100-115V
3'
32"
12"
29"
53"
60
80 100
170 230 285
52
57
62
6963302
100-115V
3'
32" x 360°
12"
29"
53"
60
80 100
170 230 285
52
57
62
6963320
208-230V
3'
22.7"
9.4"
29"
43.7"
60
80 100
130 175 220
46
52
56
6963321
208-230V
3'
32"
12"
29"
53"
60
80 100
170 230 285
52
57
62
6963322
208-230V
3'
32" x 360°
12"
29"
53"
60
80 100
170 230 285
52
57
62
6963400
100-115V
4'
22.7"
9.4"
29"
43.7"
60
80 100
175 235 295
53
57
62
6963401
100-115V
4'
32"
12"
29"
53"
60
80 100
230 305 380
57
62
67
6963402
100-115V
4'
32" x 360°
12"
29"
53"
60
80 100
230 305 380
57
62
67
6963403
100-115V
4'
35"
12"
35.5"
56"
60
80 100
230 305 380
59
62
67
6963420
208-230V
4'
22.7"
9.4"
29"
43.7"
60
80 100
175 235 295
53
57
62
6963421
208-230V
4'
32"
12"
29"
53"
60
80 100
230 305 380
57
62
67
6963422
208-230V
4'
32" x 360°
12"
29"
53"
60
80 100
230 305 380
57
62
67
6963423
208-230V
4'
35"
12"
35.5"
56"
60
80 100
230 305 380
59
62
67
6963501
100-115V
5'
32"
9.4"
29"
53"
60
80 100
220 295 370
57
62
67
6963503
100-115V
5'
35"
9.4"
35.5"
56"
60
80 100
220 295 370
57
62
67
6963521
208-230V
5'
32"
9.4"
29"
53"
60
80 100
220 295 370
57
62
67
6963523
208-230V
5'
35"
9.4"
35.5"
56"
60
80 100
220 295 370
57
62
67
6963601
100-115V
6'
32"
12"
29"
53"
60
80 100
350 465 580
57
61
66
6963603
100-115V
6'
35"
12"
35.5"
56"
60
80 100
350 465 580
57
61
66
6963621
208-230V
6'
32"
12"
29"
53"
60
80 100
350 465 580
57
61
66
6963623
208-230V
6'
35"
12"
35.5"
56"
60
80 100
350 465 580
57
61
66
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Chapter 2: Prerequisites
6
Electrical Requirements
Standard duplex electrical receptacles should be nearby for connecting the Paramount Ductless Enclosure and other equipment. The enclosures include iris pass-through ports to allow electrical cords through the back of the enclosure without leaving a large hole for contaminants to escape. (See Appendix C for amperage.)
There is no provision for controlling a remote blower for exhausting air from the Paramount Ductless Enclosure. If remote blower control is required, a qualified electrician may connect a wall-mounted power outlet switch receptacle nearby so that the switch controls both the remote blower and the outlet. The power cord for the Paramount is then plugged into this outlet.
Space Requirements
The dimensions for the different models are shown in the chart in Chapter 2 and detailed in Appendix B: Dimensions. To convert inches to millimeters, multiply by 25.4.
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7
CChhaapptteerr 33:: GGeettttiinngg SSttaarrtteedd
Now that the site for your Paramount Ductless Enclosure is properly prepared, you are ready to unpack, inspect, install, and validate your system. Read this chapter to learn how to:
Unpack and move the enclosure. Set up the enclosure with the proper supporting structure and work
surface.
Install carbon filters and/or HEPA filters. Connect the electrical supply. Set Filter Life and Filter Check Timers. Reset or change the face velocity, if necessary. Validate the enclosure. Seal the enclosure to the work surface. If applicable, connect to an exhaust system.
Depending upon which model you are installing, you may need common mechanical 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.
Note: Each enclosure model weighs between 125 to 350 lbs. (55 to 152 kg). The shipping container allows for lifting with a mechanical lift truck or floor jack. If you must lift the enclosure manually, follow safe-lifting
guidelines. Do not lift by the front air foil.
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Chapter 3: Getting Started
8
Unpacking the Enclosure
We recommend that you do not remove the enclosure from its shipping container 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.
Carefully remove the shrink-wrap or carton on the enclosure and inspect it for damage that may have occurred in transit. If damaged, notify the delivery carrier immediately and retain the entire shipment intact for inspection by the carrier.
Note: The United States Interstate Commerce Commission rules require that claims be filed with the delivery carrier within fifteen (15) days of delivery.
Note: Do not return goods without the prior authorization of Labconco. Unauthorized returns will not be accepted.
Note: If the enclosure 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 packing material until you have checked all of the components and tested the enclosure.
Do not move the enclosure by tilting it onto a hand truck.
Set Up the Ductless Enclosure on a Supporting Structure and Work Surface
When installing the enclosure onto a chemical-resistant work surface or benchtop, ensure that the structure can safely support the combined weight of the enclosure and any related equipment. See Chapter 7: Accessorizing the
Paramount Ductless Enclosure for appropriate work surfaces, stands, and cabinets. The work surface should be at least as wide as the enclosure
to properly support it. The front of the enclosure should be aligned within
0.3" of the front of the work surface as shown in Figure 3-1. Mounting holes are provided in the Labconco accessory work surfaces to secure the enclosure. RTV Silicone sealant can be applied to seal the work surface to the enclosure.
Work Surface Specifications
The work surface should be smooth, rigid, and durable. The surface should be non-porous and resistant to the powders, solvents and chemicals used in conjunction with the Paramount Ductless Enclosure.
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Chapter 3: Getting Started
9
Work Surface and Enclosure Installation
1. Level the base cabinets and the work surface. Work surface should be placed flush with the front of the stand or base cabinet as shown in Figure 3-1.
2. Identify and position the work surface ensuring the mounting holes will align with the four screw locations on the base of the enclosure. (Rear mounting holes are located close to the rear edge.)
3. Secure the work surface to the base cabinet with a structural adhesive or silicone sealant.
4. Before moving the enclosure, insert the supplied mounting screws in the four holes. Allow a minimum of 1/8" clearance under the head of the screw for positioning the enclosure. For the stainless work surfaces, use a #10-24 x 3/8" hex washer head screw (Labconco part number 1885806).
5. Place the enclosure on the work surface and slide the rear flange and front air foil flanges under the mounting screw heads.
6. Tighten the four screws to complete the installation.
7. If desired, apply RTV silicone to seal the work surface and enclosure.
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Chapter 3: Getting Started
10
Figure 3-1
Paramount Ductless Enclosure Installation
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Chapter 3: Getting Started
11
6938100
HEPA Filter, 15" x 18" x 1.5", 99.99% efficient particulate on 0.3 micron
6938200
Activated Carbon Filter, Organic Vapor 7.5 lbs.
6938201
Impregnated Carbon Filter Acid-Sulfur 10 lbs.
6938202
Impregnated Carbon Filter, Ammonia-Amine 11 lbs.
6938203
Impregnated Carbon Filter, Formaldehyde-Formalin 10 lbs.
6938204
Mixed Bed Carbon Filter, Org. Vap., Acid-Sul., Ammon, Form (25% Mix) 10 lbs.
6938205
Impregnated Carbon Filter, Radioisotope 10 lbs.
Paramount
Size
Filter
Compartments
Required
No. of Filters
Total Organic
Vapor Filter Weight
2' 1 2
15 lbs.
3' 2 4
30 lbs.
4' 3 6
45 lbs.
5' 3 6
45 lbs.
6' 4 8
60 lbs.
Install Carbon Filters and/or HEPA Filters
Refer to Figure 3-2 for a view of the filter loading compartment with the front panel removed. The Paramount Ductless Enclosure ships without
filters that must be ordered separately. It is highly recommended that an extra set of new filters be on hand on a continuous basis.
To remove the front panel, use a Phillips screwdriver to loosen the two screws holding the front panel in position; slide the front panel forward and then up to remove. The filter loading compartment is hinged and supported by gas spring cylinders. Lift the handle up and remove the cardboard packing. The cardboard packing will be replaced with filters that always stack two high.
The Paramount Ductless Enclosure has seven different filter types identified below:
All impregnated Carbon Filters, specific chemical treated, have an organic vapor capacity of 25%. Mixed Bed Carbon Filters have an organic vapor capacity of 50%. For example, the Impregnated Acid Filter has 25% of 10 pounds or 2.5 pounds of organic vapor capacity. Thus, a common application using solvents with acids would require one Activated Carbon Filter for organic vapors and one Impregnated Acid Filter for acid vapors.
Any combination of two filter types may be used. Filters are always loaded with the gasket side up. If placing the Paramount Ductless Enclosure in a clean room, always place the HEPA filter above the carbon filter to eliminate any trace carbon particles from entering the clean room. Load the stacked filters into the individual filter compartments. The Paramount model sizes, filter compartments, and number of filters are listed below for installation convenience.
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Chapter 3: Getting Started
12
To install the filters, push the stacked filters to the stop in the rear of each filter compartment. After loading the stacked filters into the compartments, close the gas spring cylinders by pulling the handle down and compressing the filter gaskets. Filter installation is complete.
Figure 3-2
Filter Installation
Connect the Electrical Supply
Simply connect the 115V power cord supplied to the IEC electrical supply plug on the back of the enclosure. For 230V, the same procedure applies except it is shipped without a plug. Install the appropriate plug for your electrical specifications per local codes. (See Appendix C for amperage.)
Set Filter Life and Filter Check Timers
Once the filters are installed and electrical power is connected, it is necessary to set the Filter Life Timers in the Filter Setup menus described in Chapter 5:
Using the Ductless Enclosure. Consult the separate Paramount Chemical Guide, Appendix E: Estimated Filter Life Calculation, and/or Labconco
Specialist to determine the filter capacity. Through the use of all three sources, set the Filter Life Timers.
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Chapter 3: Getting Started
13
Initial Safety-First™ Vapor Sensor Warm Up Period
The Safety-First™ Vapor Sensor includes a 5V, 0.28W integrated heater and any detectable gas that accumulates during shipment must be driven off the organic sensor over an initial 10-30 minute warm up period with the blower activated. Refer to the Diagnostic Program Screen for Organic Sensor on page 32 in Chapter 5 to view the display of the millivolt levels of the Vapor Sensor. With new filters installed, the Organic Sensor should read between 1300-1500 millivolts after the initial 10-30 minute warm up period with the blower running. All filters should be changed upon completion of work once the Organic Sensor sees an increase of 400-500 millivolts with the display indicating “Replace Filters.”
Reset or Change the Airflow Face Velocity (If Necessary)
The face velocity for the Paramount Ductless Enclosure has been preset at the factory between 75-80 fpm. Important Note: Transport, altitude, and temperature differences may require a reset of the “Calibration” of the
“Pressure Sensor” as outlined in Chapter 5: Using the Ductless Enclosure. When “Calibration” of the “Pressure Sensor” is reset, it is best to try the
previously calibrated values of motor speed and airflow face velocity and then confirm the average face velocity through the enclosure sash opening. Adjust the motor speed and airflow face velocity as necessary after confirmation. Average face velocity measurements are made using a calibrated thermal anemometer and taking an average across the sash opening at 5" directly below the sash handle.
Additionally, the same “Calibration” menu in Chapter 5 should be used to change the face velocity to another value. For most applications, 75-80 fpm is ideal. However, there are some requirements for 100 fpm. Furthermore, the face velocity alarm has been preset at the factory at 60 fpm. If needed, follow the “Calibration” menu for the “Airflow Alarm” in Chapter 5 and adjust the alarm value between 10-20 fpm below the actual face velocity.
The Paramount Ductless Enclosure has been set up to accept the Smart­Flow feedback system. The Smart-Flow feature adjusts the motor speed automatically for filter pressure drop, barometric pressure, and room temperature, and maintains constant airflow velocity at the calibrated value. Note: At altitudes above or below 900 feet, the Paramount must be recalibrated to account for significant pressure changes that will have an effect on face velocity. Face velocity measurements are always made using a calibrated thermal anemometer and taking an average across the sash
opening. Follow the “Calibration” menu for “Pressure Sensor” as outlined in
Chapter 5: Using the Ductless Enclosure for recalibration of face velocity.
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Chapter 3: Getting Started
14
Validate the Enclosure
To determine the actual face velocity at the sash opening, airflow velocity readings are taken. Each Paramount Ductless Enclosure has been preset at 75-80 fpm. The “average face velocity” is achieved by taking readings across the enclosure with the readings 6" from the ends and evenly spaced every 12". Readings are measured at 5" directly below the upper sash handle. Refer to Chapter 2 for proper airflow volumes for your particular model.
The Paramount Ductless Enclosures have been tested at Labconco’s airflow test facility per ASHRAE 110-1995. All enclosures achieve an “as manufactured
rating” of less than 0.05 part per million (ppm) at 4 liters per minute (lpm); AM
<0.05 (Consult Labconco for individual ratings). For particulate powder validation, Labconco had containment testing performed to validate the enclosures for naproxen sodium powders. The Paramount Ductless Enclosures demonstrated excellent containment when used by an operator using excellent technique and good containment when used by an operator using marginal technique. While no enclosure can compensate for improper technique, these tests confirm that the Paramount Ductless Enclosures provide a safe working environment. For copies of these validation reports, contact Labconco at 800­821-5525 or 816-333-8811.
Seal the Enclosure to the Work Surface
When the enclosure has been set in place, it can be sealed at the work surface to prevent spilled materials from collecting under the walls. A bead of silicone sealant is recommended to seal the enclosure to the work surface.
Connecting to the Exhaust System (If Applicable)
WARNING: The weight of the exhaust ductwork system must be supported independently of the enclosure superstructure or damage may occur.
The exhaust system should be installed by a qualified HVAC contractor.
Normal operations with the Paramount Ductless Enclosure are exhausted into the room and the accessory Canopy Exhaust Connection is not required. The Canopy Exhaust Connection aids in the further removal of chemicals beyond the filters or applications where a higher degree of powder and particulate removal is required. However, if desired, the Canopy Exhaust Connection (see Chapter 7) accessory has been designed to accept 6" diameter ductwork. Review Chapter 2 for exhaust prerequisites and review Chapter 7 for ordering blower exhaust equipment. Consult Labconco should you require help sizing your blower for the exhaust volume and system static pressure loss. To ensure compatibility, the selected exhaust duct material should match the enclosure, procedures and chemical applications.
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15
CChhaapptteerr 44:: PPeerrffoorrm
maannccee FFeeaattuurreess aanndd
SSaaffeettyy PPrreeccaauuttiioonnss
The Paramount Ductless Enclosure is a self-contained filtered enclosure that protects the operator from specified vapors and particulates through the revolutionary combination of features to enhance safety, performance, and ergonomics. Carbon filters and/or HEPA filters must be installed.
All Paramount Ductless Enclosures have the following performance features as illustrated in Figure 4-1:
1. High Performance Containment
2. Safety-First™ Vapor Sensor
3. Smart-Flow Airflow Monitor
4. Quiet, Energy-Efficient ECM Impeller
5. Audible/Visual Alarms
6. Large Control Panel LCD Display
7. Ergonomic Sloped Front
8. Convenient Filter Replacement
9. Durable Construction
10. Fluorescent Light with Electronic Ballast
11. Utility Iris Ports
12. Maximum Visibility
13. Simple Electrical Connection
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Chapter 4: Performance Features and Safety Precautions
16
Figure 4-1
Performance Features
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Chapter 4: Performance Features and Safety Precautions
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High Performance Containment
The Paramount Ductless Enclosures use patented technology to direct air into and through the contaminated air chamber (U.S. Patent 6,461,233). The containment enhancing and aerodynamic designs of the lower Clean-
Sweep™ Air Foil, upper sash foil, side air foils, upper dilution air supply,
and zoned rear perforated baffle all work in concert to produce horizontal airflow patterns that significantly reduce chemical concentrations through the work area (illustrated in Figure 4-2). The unique lower air foil shape and Clean-Sweep openings sweep the work surface and create a constant protective barrier from contaminants. The radiused upper sash foil includes an open air passage directly atop the sash foil into the enclosure chamber and directs chemical concentrations away from the sash opening. The side entry air foils allow turbulence-free air to enter the enclosure from the sides and allow clean air to sweep the interior walls. The upper dilution air supply provides by-pass air from above the work surface to constantly bathe the inside of the sash and upper chamber with clean air to reduce chemical concentrations. The zoned rear perforated baffle directs horizontal laminar air streams to the three zones to minimize the potential for air to roll forward preventing contaminants from moving toward the sash opening.
Figure 4-2
Airflow Diagram
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Chapter 4: Performance Features and Safety Precautions
18
Chemical Family
Chemical
Sensitivity Alert
Concentration
Odor
Threshold
(ppm)
Exposure
Limit TWA
(ppm)
Filter
Capacity
(%W)
Filter Type
Aldehydes & Ketones
Cyclohexanone
0.2-0.5 ppm
0.068
50
22%
OV
Mixture of Aliphatic Hydrocarbons
Gasoline
0.3-1.0 ppm
0.3
300
11%
OV
Particulates
Cigarette smoke
0.4-1.0 ppm
N/A
N/A
N/A
OV & HEPA
Aldehydes & Ketones
Acetone
0.5-1.0 ppm
4.58
250
2%
OV
Aromatic Hydrocarbons
Toluene
0.5-1.0 ppm
0.16
100
20%
OV
Ethers
Methyl Tert-Butyl Ether
0.5-1.0 ppm
0.053
50
9%
OV
Sulfur Compounds
Hydrogen Sulfide
0.5-2.0 ppm
0.0005
10
10%
AG, Acid-Sulfur
Nitrogen Compounds
Diethylamine
1.5-2.0 ppm
0.186
10
7%
OV
Esters
Ethyl Acetate
1.5-4 ppm
0.61
400
9%
OV
Ethers
Diethyl Ether
2-4 ppm
2.29
400
4%
OV
Aldehydes
Formaldehyde
2-4 ppm, best to use
other detector methods
0.87
0.1 ceiling,
0.016
10%
FORM
Nitrogen Compounds
Ammonia Solution (Ammonium Hydroxide)
2-5 ppm
5.75
25
10%
AM, Ammonia-
Amine
Alcohols
Ethyl Alcohol*
2.5-4 ppm
0.136
1000
1.3%
OV
Acids
Acetic Acid
5-6 ppm
0.016
10
4%
OV
Halogens
Chlorobenzene
5-8 ppm
0.741
10
20%
OV
Alcohols
Isopropyl Alcohol
8-11 ppm
22
200
7%
OV
Aliphatic Hydrocarbons
Hexane
9-15 ppm
21.9
50
11%
OV
Alcohols
Methanol*
15-25 ppm
141
200
0.1%,
very low
not recommended
Mineral Acids
Hydrochloric Acid
Not Detected, use other
detector means
0.77 5 17%
AG, Acid-Sulfur
*
Safety-First™ Vapor Sensor
The Safety-First™ Vapor Sensor detects filter saturation in the exhaust to alert the operator to replace the filters. The early warning provided by the Safety-First Vapor Sensor provides the user ample time (5-10% remaining filter life) to complete work in process before replacing the filters. The early warning signals with an intermittent beep and the LCD display message alerts the user to replace filters. The final warning signals with a constant alarm and the LCD display message alerts the user to replace filters. The Safety­First Vapor Sensor includes a primary and secondary backup sensor for redundant monitoring. Both sensors detect typical organic vapor solvents, smoke particulates, ammonia gases, formaldehyde gases and hydrogen sulfide gases. The Safety-First Vapor Sensor has an optimal detection range of 1-10 ppm. Typical concentrations tested by Labconco for chemicals in separate chemical families are listed in order of sensor sensitivity as follows:
Important Note: Clean up procedures using alcohols or volatile chemicals with low filter capacity could saturate the filters quickly.
Important Note: The vapor sensor does not detect mineral acid gases such
as hydrochloric acid, nitric acid, or sulfuric acid and other detector means such as a mineral acid sensor or interval timed sampling with sampling tubes must be used.
Chemical Safety Note: The chart above is only a guideline! Frequent chemical testing or filter monitoring is recommended for other chemicals. If chemical suitability is ever in question, always work below the acceptable exposure limit/TWA to maximize both safety and filter performance.
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Chapter 4: Performance Features and Safety Precautions
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Smart-Flow™ Airflow Monitor
The Smart-Flow™ Airflow Monitor continuously monitors airflow and displays face velocity. An audible/visual alarm alerts the user to low airflow conditions. The Smart-Flow Airflow Monitor enables the motor speed to automatically adjust for conditions such as temperature, barometric pressure, and filter loading and maintain constant programmed airflow speed. The Smart-Flow feedback maintains constant airflow speed through the use of constant velocity pressure measurement accomplished with a pitot tube and pressure sensor mounted on the control board. Transport, altitude, and temperature differences require the airflow re-calibration steps as outlined in
Chapter 5 and 6. Use the “Calibration” menu in Chapter 5 to reset the “Pressure Sensor” values for motor speed and airflow face velocity.
Quiet, Energy-Efficient ECM Impeller
The electronically commutated motorized (ECM) impeller is 95% energy
efficient providing “green” energy savings (See Appendix D). Because of
the high efficiency, the impeller runs extremely quiet for the comparative amount of airflow volume. All Paramounts run at or below 62 dbA at 80 fpm and most Paramounts run at or below 59 dbA at 80 fpm. By design, the ECM impeller is located after the filters assuring an intrinsically safe design where all contaminated air is filtered effectively. See Chapter 2: Prerequisites for complete airflow exhaust volume, noise pressure, and face velocities of 60, 80 and 100 fpm. The ECM impeller has a programmable blower timer should you desire additional “green” energy savings.
Audible/Visual Alarms
The audible/visual alarms remind the operator to check the filters with sampling tubes or replace the filter. Filter replacement alarms occur in audible/visual modes for both filter saturation activated by the Safety-First Vapor Sensor or the final filter elapsed time. A low airflow alarm occurs when the face velocity drops below programmed levels.
Large Control Panel LCD Display
The large (3" x 1.5") LCD message center provides continuous status reports for each filter, displays airflow speed, and displays alarm messages for both filters and airflow. The touchpad can be programmed for filter types, filter check times, and filter replacement times. Audible/visual alert time messages appear after the specified number of hours has elapsed. The audible/visual alarm reminds the operator to check the filters with sampling tubes or replace the filters. Filter replacement audible/visual alarms occur for both the Safety­First Vapor Sensor and final filter elapsed time.
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