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48 

Chapter 6: Maintaining Your Filtered Enclosure 

 

5.  Adjust the inflow velocity to the nominal operating point 

required by your Safety Officer. 

6.  Over time the HEPA filter will load and eventually slow 

the inflow velocity.  Once the alarm condition is met, 
simply increase the speed control outlined in Chapter 6 or 
replace the HEPA filter if the speed control is maximized. 

7.  The table below lists typical alarm conditions based on 

normal operating conditions.  Typical alarm conditions are 
set at face velocities of 10 to 30 feet per minute below the 
normal operating conditions due to supply air and exhaust 
air fluctuations, as well as room air cross drafts.  Consult 
your Safety Officer for proper operating speeds. 

 

Enclosure Operating In-Flow 

Speed 

Alarm Condition Set Point 

Speed 

100 ± 10 fpm 

70-90 fpm 

90 ± 10 fpm 

60-80 fpm 

80 ± 10 fpm 

50-70 fpm 

70 ± 10 fpm 

50-60 fpm 

60 ± 10 fpm 

50 fpm 

 
 

Summary of Contents for 3980200

Page 1: ...r Register your product online at www labconco com productreg html or return the attached card and receive FREE LabbyWear Models 3980200 3980201 3980202 3980203 3980220 3980221 3980222 3980223 3980300 3980301 3980302 3980303 3980320 3980321 3980322 3980323 3980400 3980401 3980402 3980403 3980420 3980421 3980422 3980423 ...

Page 2: ......

Page 3: ...r 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 ...

Page 4: ...ters 15 Connect the Electrical Supply Source to Filtered Enclosure 16 Set the Face Velocity with Speed Control Adjustment 17 Validating the Vented Enclosure 17 Sealing the Filtered Enclosure to the Work Surface 18 CHAPTER 4 HIGH PERFORMANCE FEATURES AND SAFETY PRECAUTIONS 19 Components 20 Safety Precautions 27 CHAPTER 5 APPROPRIATE APPLICATIONS FOR YOUR FILTERED ENCLOSURE 31 Routine Daily Work Pro...

Page 5: ... control Carbon Filter Life 52 Initial Certification 53 Re Certification 53 Fluorescent Light Replacement 54 UV Light Replacement 54 Motorized Impeller Replacement 54 Speed Control Replacement 56 CHAPTER 7 ACCESSORIZING MODIFYING YOUR FILTERED ENCLOSURE 57 CHAPTER 8 TROUBLESHOOTING SERVICER OPERATING LOG 63 APPENDIX A FILTERED ENCLOSURE COMPONENTS AND REPLACEMENT PARTS 67 APPENDIX B DIMENSIONS AND...

Page 6: ...b nuisance odors from organic vapors formaldehyde or ammonia and amines The Purifier enclosures offer many unique features to enhance safety performance and energy savings 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 high performance HEPA filtered enclosures operate please review Chapter 4 High Perfor...

Page 7: ...ommended that a Labconco product specialist review the chemical application to determine if it is suitable Consult Chapter 5 and Chapter 6 About This Manual This manual is designed to help you learn how to install use and maintain your filtered enclosure Instructions for installing optional equipment or accessory carbon filters on your filtered enclosure are also included Chapter 1 Introduction pr...

Page 8: ...ns and Exhaust Options contains comprehensive diagrams showing all of the dimensions for the filtered enclosures Appendix C Filtered Enclosure Specifications contains the electrical requirements for filtered enclosures Wiring diagrams are also included Appendix D Quick Chart provides a table of airflow and test data for the filtered enclosures Appendix E References lists the various resources avai...

Page 9: ...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 A number icon precedes information that is specific to a particular model of ...

Page 10: ...tionally 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 vibration and movement requirements The location and air current requirements The exhaust and blower requirements The electrical power requirements The space requirements Refer to Appendix B Purifier Dimensions f...

Page 11: ...wall HVAC diffusers fans radiators or other lab equipment producing air currents Next to doorways or windows that may be opened Exhaust and Blower Requirements The Purifier Class I Enclosure and Purifier Filtered Enclosure use an integral motorized impeller to draw room air past the operator and through the enclosure This contaminated air is then pushed through the HEPA filter The HEPA filtered ex...

Page 12: ...m these exhaust requirements and the total system static pressure loss For outside exhaust the enclosure must be connected to either a dedicated blower or a house exhaust system Labconco offers accessory remote blowers listed in Chapter 7 Contact Labconco for blower sizing assistance If the enclosure is connected directly to a house exhaust system an adjustable damper or valve must be installed to...

Page 13: ...8 Chapter 2 Prerequisites ...

Page 14: ... face velocity with the speed control adjustment Arrange validation for the enclosure Seal the enclosure to the work surface 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 th...

Page 15: ...e 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 Do not move the enclosure by tilting it onto a hand truck Installing the Filtered Enclosure on a Supporting Structure and Work Surface Use caution when lifting or moving the enc...

Page 16: ...tered Enclosure Installation 1 Level the base cabinets and the work surface Work surface should be placed flush with the front of the base cabinet as shown in Figure 3 1 2 Position the work surface in its intended location and with the front of the work surface towards you Rear mounting holes are located close to the rear edge 3 Secure the work surface to the base cabinet with a structural adhesiv...

Page 17: ...12 Chapter 3 Getting Started Figure 3 1 Filtered Enclosure Installation ...

Page 18: ...fier Class I Enclosure Review Chapter 2 for exhaust prerequisites and review Chapter 7 for ordering blower exhaust equipment See Figure 3 2 for exhaust kit options on Purifier filtered enclosures Consult Labconco Customer Service 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 ...

Page 19: ...14 Chapter 3 Getting Started Figure 3 2 Exhaust Duct Connection Kit shown installed on Purifier Models Optional Kit 3924400 2 3924401 3 and 3924402 4 ...

Page 20: ...mination of biohazardous materials or are used with nonbiohazardous materials or nuisance powders All seams upstream of the HEPA filter are jacketed by negative pressure This intrinsically safe design ensures containment Carbon Filters Accessory for Odor Control only For carbon filter installation first remove the upper perforated cover secured by Phillips head screws on the top of the enclosure S...

Page 21: ...al and the exhaust from the enclosure must not exceed the TWA Ammonia and Amines 2 3937202 3 3937302 4 3937402 Treats ammonia low molecular weight amines and other bases designated by NIOSH as acceptable for use with ammonia cartridge type respirators Requires the use of an impregnated carbon Concentrations in the enclosure s work area must not exceed the IDLH for the chemical and the exhaust from...

Page 22: ...Enclosure To determine the actual face velocity at the sash opening airflow velocity readings are taken This should be done across the sash opening of the enclosure in accordance with the Industrial Ventilation Manual See Appendix E The average face velocity is achieved by taking readings in two rows across the enclosure with the readings 6 from the ends and evenly spaced every 12 the first row is...

Page 23: ...trial hygiene air monitoring study to confirm the performance of the enclosure for powders The Purifier 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 the Purifier Enclosures provide a safe working envi...

Page 24: ...ed to effectively contain toxic noxious and biohazardous materials when properly installed and operated What makes the filtered enclosures so unique is the revolutionary way they direct air into and through the contaminated air chamber Labconco engineered the filtered enclosures to minimize the effects of turbulence The containment enhancing and aerodynamic designs of the upper sash foil side air ...

Page 25: ...Should a leak occur in the filter gasket or the plenum the contaminated air is recaptured and refiltered The Purifier Class I Enclosure and Purifier HEPA Filtered Enclosure have an access port located behind the front panel For HEPA filter removal in biohazardous applications on Purifier enclosures the HEPA filter will require decontamination before removal Users of all equipment are encouraged to...

Page 26: ...21 Chapter 4 High Performance Features and Safety Not Shown 7 9 10 11 12 13 20 21 22 23 24 25 28 See Figure 4 2 Figure 4 1 17 26 16 10 15 3 8 18 2 1 5 6 4 19 ...

Page 27: ...22 Chapter 4 High Performance Features and Safety Figure 4 2 HEPA Filtered Enclosure Airflow Diagram ...

Page 28: ...ntly block the airflow entering the air foil air continues to pass under the air foil and through the Clean Sweep openings See Figures 4 1 and 4 3 2 Containment Enhancing Upper Sash Foil includes an open air passage directly atop the sash foil to bleed air into the hood chamber and direct chemical powder and particulate materials away from the sash opening The radiused sash foil sweeps airflow int...

Page 29: ...gures 4 1 and 4 2 5 Side Entry Air Foils allow turbulence free air to enter the enclosure from the sides and allow clean air to sweep the interior walls of the enclosure See Figures 4 1 and 4 2 6 Ergonomic Slope of 10 degrees provides maximum visibility and comfort reduces glare thereby minimizing operator fatigue See Figure 4 1 7 Internal Depth of 23 provides necessary depth to support modern bal...

Page 30: ...ratory workspace because the impeller and HEPA filter are contained within the enclosure a separate filtered blower module is not required See Figure 4 1 15 Fluorescent Lamp is located above the work area out of contact with contaminated air A safety glass window beneath the lamp distributes the light evenly across the work surface See Figure 4 1 16 Filter System Pressure Gauge indicates the total...

Page 31: ... by the weight of the carbon filter Carbon filters are listed in Chapter 7 See Figure 4 2 25 Accessory Exhaust Connection Kits are available to duct the Purifier Class I Enclosure and Purifier HEPA Filtered Enclosure to the outside The exhaust connection allows the operator additional protection from hazardous fumes or vapors and should be used if the carbon filter capacity is not adequate Each ki...

Page 32: ...n blocks to allow a flow of air under the object and into the rear baffle exhaust slots Ensure blocks are level and secured in place 4 Blocking large portions of the rear baffle will change the airflow pattern in the enclosure causing turbulence Do not store containers or supplies against the rear baffle as this will affect airflow 5 Always work with your hands as far back into the enclosure as po...

Page 33: ...ts in the enclosure if possible Care must be taken to ensure against the concentration of flammable or explosive gases or vapors Use of an open flame should be avoided in the enclosure Open flames may disrupt the airflow patterns in the cabinet burn the HEPA filter and damage the filter s adhesive Gases under high pressure should not be used in the enclosure as they may disrupt the airflow pattern...

Page 34: ... fire hazard with volatile solvents 23 Increase the face velocity by adjusting the speed control of the motorized impeller or change the HEPA filter when the face velocity falls below acceptable limits established by your Safety Officer 24 Exhaust carbon filters and HEPA filters are disposed as hazardous waste The user is responsible for recording the chemicals adsorbed or treated by the filters a...

Page 35: ...mallest possible quantity of chemical s within the enclosure and never exceed the amount which can be effectively adsorbed by the Odor Control carbon filter before breakthrough 31 Adjust face velocity to fall between 75 and 105 FPM for biological procedures 32 Leave the blower on for at least one minute after work in the enclosure has been completed 33 If a chemical powder or particulates are spil...

Page 36: ...earn about 1 Routine Daily Work Procedures 2 Suitable Applications 3 Appropriate HEPA Filter Applications Suitability and Guidelines 4 Odor Control Carbon Filter Applications 5 Definition of Terms 6 Appropriate Chemicals for Odor Control Carbon Filters 7 Hazardous Misapplications for Odor Control Carbon Filters 8 Chemical Carcinogen use with Odor Control Carbon Filters 9 Prohibited Acid Use Routin...

Page 37: ...overload the enclosure Do not obstruct the air foil or rear baffle slots Large objects should not be placed close together and should be elevated above the work surface to permit airflow to sweep under the equipment After loading wait one minute to purge airborne contaminants from the work area Work Techniques Keep all materials inside the lower air foil and perform all contaminated operations as ...

Page 38: ...losure as long as appropriate decontamination occurs before filter changing operations See Chapter 6 for decontamination procedures Listed below are suitable applications for HEPA filters and accessory Odor Control Carbon Filters HEPA Filter Applications Suitability and Guidelines Biohazardous materials and hazardous solids to protect only the operator and the surrounding environment Weighing of p...

Page 39: ...apter 6 for disposal instructions Odor Control Carbon Filter Applications sold as an accessory Release of low concentrations of vapors effectively adsorbed or treated in carbon based filters Treatment of low level carcinogens or suspected carcinogens See Chemical Carcinogens in Chapter 5 Procedures that may have traditionally been done on the open bench low levels only Odoriferous chemicals that a...

Page 40: ...se The period of time until the odor threshold is reached in the exhaust stream can be estimated from Labconco exclusive computerized filter modeling program Contact Labconco on carbon filter life for specific applications See Chapter 6 Saturation Level or Time There is a limit to the amount of chemical that can be adsorbed by activated carbon or neutralized by chemically treated carbon Once the c...

Page 41: ...hted exposure limits TWA of 1 PPM or greater Chemicals must have a detectable odor at concentrations below the TWA for the chemical Chemicals must be designated by NIOSH guidelines as acceptable for use with chemical cartridge type respirators the exception is formaldehyde and ammonia amines which used impregnated carbon Chemicals not listed by NIOSH in the Pocket Guide must be approved by Labconc...

Page 42: ... measures must be taken to monitor the filter and number of room air exchanges Chemical Carcinogen Use with Odor Control Carbon Filters Selected carcinogens may be used safely with Odor Control carbon filters under the following restrictions The use of a vented fume hood or ventilated enclosure with ducting to the outside is always the preferred method when working with carcinogens The Odor Contro...

Page 43: ...he Labconco chemical guide for carbon filtered enclosures Prohibited Acid Use The Purifier HEPA and Purifier Class I filtered enclosures motorized impeller cannot be exposed to acids Where applications require the use of acids a separate ventilated enclosure or vented fume hood should be used with a remote blower ducted to the outside No exceptions are permitted as the impeller life span will be l...

Page 44: ...ing 1 Routine Maintenance 2 Decontamination 3 Determination of when to replace the HEPA filters 4 How to install a new HEPA filter 5 HEPA filter leak test 6 Speed control adjustment and setting the inflow face velocity 7 Operating and calibrating the airflow monitors 8 Determination of when to replace Odor Control carbon filters and how to replace 9 Calculating Odor Control carbon filter life 10 I...

Page 45: ... ensure that the enclosure is maintaining proper airflow All weekly activities Check face velocity Increase speed control or change HEPA filter when face velocity of the enclosure drops below the recommended speed for your facility or if the airflow alarm monitor alerts you Airflow monitors are recommended While the enclosure is filled with the contaminant test filter condition on Odor Control car...

Page 46: ...epartment of Health Education and Welfare booklet entitled Formaldehyde Decontamination of Laminar Flow Biological Safety Cabinets available from NIH Division of Safety Bethesda MD 20892 call 301 496 2801 or from Labconco Corporation Determination of when to Replace HEPA Filters The HEPA filters in the filtered enclosures gradually accumulate airborne particulate matter and powders from the enclos...

Page 47: ...ith the filter removed inspect the clamping frame and the frame of the cabinet for damage 6 Cover the surface of the new HEPA filter gasket with a light coating of silicone grease if desired 7 Install the new HEPA filter by pushing it straight into the cabinet ensuring that it is correctly oriented with the gasket facing up on the exhaust side of the enclosure The filter gasket is surrounded by a ...

Page 48: ...43 Chapter 6 Maintaining Your Filtered Enclosure Figure 6 1 HEPA Filter Changing Diagram Filter Leak Test Diagram ...

Page 49: ...l generator of the Laskin nozzle s type An aerosol of mineral oil or suitable liquid shall be created by flowing air through it The compressed air supplied to the generator should be adjusted to a pressure of 10 1 psig during operation Air Techniques Inc Model TDA 4A or equal One nozzle at 10 psig is 67 5 cfm x 100ug l Vol of air For the 2 at 90 fpm or 130 cfm one nozzle 10 psig is 13 500 130 cfm ...

Page 50: ...irflows at 90 fpm 2 130cfm 3 200 cfm 4 265 cfm 9 Position the aerosol generator discharge in the intake of the baffle inside the enclosure 10 Start the aerosol generator Pressure to be 1 PSIG Ensure that one Laskin nozzle is in the open position 11 Allow the generator to operate for a minimum of 15 seconds For all integral motorized impeller models scan the downstream exhaust side of the HEPA filt...

Page 51: ...s Calibrate and Operate the Airflow Monitor Guardian Airflow Monitor LED Monitor Refer to Figure 6 2 for operation and calibration Labconco Airflow Monitor Airflow Switch Operation The Guardian Airflow Monitor LED consists of a circuit board and an airflow switch This switch indicates airflow as safe or low It does not provide an actual face velocity but a small setscrew in the back of the sensor ...

Page 52: ...pecial with an additional connector for the following external inputs and having the following possible functions External Alarm allows an external signal to sound the alarm such as a sash open switch or a fail signal from the building airflow system Alarm Disable allows an external signal to prevent a low airflow alarm from occurring Night Setback allows an external signal to prevent a low airflo...

Page 53: ...f the speed control is maximized 7 The table below lists typical alarm conditions based on normal operating conditions Typical alarm conditions are set at face velocities of 10 to 30 feet per minute below the normal operating conditions due to supply air and exhaust air fluctuations as well as room air cross drafts Consult your Safety Officer for proper operating speeds Enclosure Operating In Flow...

Page 54: ...49 Chapter 6 Maintaining Your Filtered Enclosure Figure 6 2 Guardian Airflow Monitor LED with Airflow Switch ...

Page 55: ...tions Odor can be used as a prompt to sample the chemical concentration on the exit side of the carbon filter Organic chemicals approved for use in the filtered enclosure have odors that are detectable before reaching the time weighted exposure limits Detection Tubes Color change indicators can be used to measure the concentration of the chemical at the exit side of the carbon filter or in the out...

Page 56: ... usage Detector tubes or analytical instrumentation should always be used to determine concentrations in the carbon filter It is recommended that the carbon filters be checked with detector tubes or other means at intervals of 20 of the total estimated filter life The exception to the 20 recommendation is formaldehyde and any carcinogen or suspected carcinogen These more hazardous chemicals must b...

Page 57: ...ate the concentration in parts per million ppm Steps for Calculating PPM and Filter Life 1 Determine the amount of the proposed chemical lost to evaporation over a given amount of time For example if you use isopropyl alcohol and lose approximately 100 ml per week during 2 hours of use per day 2 Convert the amount lost into ml min For this example 100 ml X 1 week X 10 hours 100 ml lost week 10 hou...

Page 58: ...sorbed Volume of 50 Ammonia Solution 2 18 x 18 x 1 9 2 0 92 lbs 418g 836 ml 3 30 x 18 x 1 13 5 1 35 lbs 613g 1226 ml 4 42 x 18 x 1 18 9 1 89 lbs 859g 1718 ml Initial Certification The filtered enclosure has been certified at the factory for an inflow velocity of 90 10 fpm along with the HEPA Filter Leak Test The filtered enclosure should be certified for the proper inflow velocity required by your...

Page 59: ...e enclosure 3 Surface decontaminate the old UV light before handling it 4 Rotate and remove the old UV lamp 5 Reinstall the new UV lamp 6 Power the unit up and try the new UV lamp Motorized Impeller Replacement The motorized impeller must be replaced as a complete unit When the motorized impeller is replaced the capacitor may also be replaced See Appendix A for Replacement Parts Diagram See Figure...

Page 60: ... supports with the vibration isolation mounts Remove the motor and bracket WARNING High speed blower Never operate impeller with housing off 5 Replace the capacitor with a new one of equal voltage and capacity 6 Reassemble the new motorized impeller by reversing the assembly steps Figure 6 3 Motorized Impeller Replacement ...

Page 61: ...2 Remove the two screws holding the speed control using a Phillips screwdriver Refer to Appendix A for Replacement Parts Diagram 3 Disconnect all wires leading to the speed control Connect wires on new speed control in the same position as the old speed control 4 Reassemble to the system in the same position and with the same screws that were removed earlier ...

Page 62: ... exhaust dampers filters storage cabinets and utility shelf kit 1 Work Surfaces An optional dished work surface is available to attach to the filtered enclosure Dished work surfaces are contoured to fit the dimensions of the filtered enclosures to contain spills Epoxy is chemical resistant See Figure 3 1 for installation Catalog Description Dimensions W x D x H 3909900 Black 2 foot wide 24 x 29 x ...

Page 63: ...e Exhaust transition connects to the enclosures with integral motorized impellers from the top so the duct can be routed up and outside the building The transition is available for 6 PVC duct The transition should be sealed to the top of the enclosure with silicone sealant to prevent leaks See Figure 3 3 Order the following Part Description 3924400 2 Exhaust Transition Kit 3924401 3 Exhaust Transi...

Page 64: ...p direct drive motor and corrosion resistant epoxy coated steel housing and wheel with blower inlet of 6 00 ID Outlet dimensions are 4 25 x 7 38 OD CFM Static Pressure Inches of H2O S P 0 0 0 125 0 25 0 50 0 75 0 87 CFM 595 560 515 420 300 167 Catalog Description Shipping Wt lbs kg 4863500 Remote Blower 115 V 60 Hz 4 4 amps 35 16 4863501 Remote Blower 115 230 V 50 Hz 5 6 2 8 amps 35 16 Used with P...

Page 65: ...rol Carbon Filter Provides granular activated carbon or impregnated carbon used for Odor Control applications on integral motorized impeller models exhausted back into the room Filter Classification and Size Catalog X Pounds 2 Organic 18 x 18 x 1 3937200 5 5 lbs activated 3 Organic 30 x 18 x 1 3937300 9 2 lbs activated 4 Organic 42 x 18 x 1 3937400 12 9 lbs activated 2 Formaldehyde 18 x 18 x 1 393...

Page 66: ... 9901200 24 9902300 9902400 9901300 9901500 18 9901400 9901600 12 48 w Self Closing Doors 9903000 36 w Self Closing Doors 9903100 30 w Self Closing Doors 9903200 24 w Self Closing Doors 9903300 9903400 24 ADA 9906000 9906100 9905000 9905200 24 ADA w Self Closing Doors 9906200 9906300 18 ADA 9905100 9905300 12 ADA STANDARD BASE VACUUM PUMP Size Description Dual Doors Right Hinge Left Hinge Dual Doo...

Page 67: ...62 Chapter 7 Accessorizing and Modifying Your Filtered Enclosure ...

Page 68: ...ections in the manual Ref Appendix D Restriction of the baffle air slots or blockage of the exhaust outlet Remove obstruction to ensure that all air slots and the exhaust outlet are unobstructed External factors are disrupting the enclosure airflow patterns or acting as a source of contamination See Location Requirements Chapter 2 Certifying the Enclosure Chapter 3 and Safety Precautions Chapter 4...

Page 69: ...d Carbon filter loaded with chemicals Replace carbon filter Blower and lights won t operate Unit not plugged into outlet Plug enclosure into appropriate electrical service Circuit breaker s tripped Reset or replace circuit breaker Lights do not work Lamp not installed properly Inspect lamp installation Lamp wiring disconnected Inspect lamp wiring Defective lamp Replace lamp Light switch is defecti...

Page 70: ...city The HEPA filter may have become loaded If face velocity is correct calibrate the airflow monitor outlined in this manual in Chapter 6 Monitor alarms air way to airflow monitor sensor is blocked by insects dust or debris Lightly clean the airway with clean air Be careful not to touch sensitive electrical components Audible disable will not stay operational An alarm condition must be continuous...

Page 71: ...66 Chapter 8 Troubleshooting Service Operating Record Log Customer Name Model Number Date Installed Serial Number Unit Location Date Comments ...

Page 72: ...R RE E C CO OM MP PO ON NE EN NT TS S A AN ND D R RE EP PL LA AC CE EM ME EN NT T P PA AR RT TS S The components that are available for your filtered enclosure are listed The parts shown are the most commonly requested If other parts are required please contact Product Service ...

Page 73: ...10 24 x 1 00 PH Phil S S 9B 2 1912108 Washer Plastic 194 ID x 380 OD 9C 2 7868402 Bushing Spacer 31 x 63 10 1 9 Ft 6913700 Wiper Sash Seal 11A 2 1936800 Bushing Heyco closed 1 50 Dia 11B 2 1934601 Bushing Heyco w Flex Shutter 1 50 Dia 12A 1 3915401 Side Air Foil 12B 2 1889912 Screw 6 32 x 75 Oval Hd Type F S S 13A 1 3907700 Reflector Light 2 13B 1 3907701 Reflector Light 3 13C 1 3907702 Reflector ...

Page 74: ...Phillips 24A 1 3916500 Impeller Motorized 2 or 3 Enclosure 115V 24B 1 3916501 Impeller Motorized 2 or 3 Enclosure 230V 24C 1 3903300 Impeller Motorized 4 115V 24D 1 3903301 Impeller Motorized 4 230V 24E 4 1601800 Vibration Isolator Mount 25A 1 1306900 Capacitor 2 115V 10 MFD 25B 1 1306900 Capacitor 3 115V 10 MFD 25C 1 1306600 Capacitor 4 115V 15 MFD 25D 2 1306800 Capacitor 2 230V 4 MFD effective 2...

Page 75: ...lter 33E 1 3937301 3 Odor Control Formaldehyde Carbon Filter 33F 1 3937302 3 Odor Control Ammonia Carbon Filter 33G 1 3937400 4 Odor Control Organic Vapor Carbon Filter 33H 1 3937401 4 Odor Control Formaldehyde Carbon Filter 33I 1 3937402 4 Odor Control Ammonia Carbon Filter 34 1 7907802 Digital Monitor Outlet 115V only 230V connected at laboratory outlet location 35A 1 1333800 IEC Power Inlet 35B...

Page 76: ... A Replacement Parts Use for Purifier Class I and Purifier HEPA Filtered Enclosures 5 1 9 11 16 10 6 2 3 4 5 12 20 21 7 14 13 19 18 22 17 23 24 25 27 26 28 29 30 31 32 35 36 33 Placed on ledge above HEPA filter 40 ...

Page 77: ... A AP PP PE EN ND DI IX X B B D DI IM ME EN NS SI IO ON NS S A AN ND D E EX XH HA AU US ST T O OP PT TI IO ON NS S See the following dimensions and exhaust options for all the Purifier Filtered Enclosures ...

Page 78: ...73 Appendix B Dimensions and Exhaust Options Figure B 1 Purifier Class I and Purifier HEPA Filtered Enclosure ...

Page 79: ... Appendix B Dimensions and Exhaust Options Figure B 2 Exhaust Duct Connection Kit Optional Installation on Integral Blower Models can be installed on Purifier Class I and Purifier HEPA Filtered Enclosure ...

Page 80: ... XPert Filtered Balance Station Environmental Conditions Indoor use only Maximum altitude 6562 feet 2000 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 Installati...

Page 81: ...pecifications 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 ...

Page 82: ...77 Appendix C Filtered Enclosure Specifications C 1 ...

Page 83: ...78 Appendix C Filtered Enclosure Specifications C 2 ...

Page 84: ...79 Appendix C Filtered Enclosure Specifications C 3 ...

Page 85: ...80 Appendix C Filtered Enclosure Specifications C 4 ...

Page 86: ...the work surface A total of four readings will be taken for the 2 enclosure six readings taken for the 3 enclosure and eight readings taken for the 4 enclosure and then averaged Model Size 2 3 4 Sash Height from Work Surface inches 9 44 9 44 9 44 Total Open Area with Bypass sq ft 1 45 2 20 2 95 Exhaust Airflow Volume at 90fpm CFM 130 200 265 Alarm Airflow Volume at 60 fpm CFM 85 130 175 Initial Ma...

Page 87: ...CO ON NT TA AM MI IN NA AT TI IO ON N 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...

Page 88: ...ts 1330 Kemper Meadow drive Cincinnati OH 45240 1634 513 742 2020 www acgih org 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 Conditioni...

Page 89: ...A 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 NFPA 30 2000 Flammable and Combust...

Page 90: ...ermott 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 Laborator...

Page 91: ...ety Springer Verlag New York U S Department of Health Education and Welfare Formaldehyde Decontamination of Laminar Flow Biological Safety Cabinets National Institutes of Health Division of Safety Bethesda MD 20892 U S Department of Health Education and Welfare Effective use of a Laminar Flow Biological Safe Cabinet National Audiovisual Center GSA Sales Branch Catalog No NAC 005133 Washington D C ...

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