Models: 1828 and 1829 1845 and 1846from personnel traffic, air-conditioning or heating ductwork, and/or laboratory windows and doors. Proper cabinet location is essential as drafts

Models:1828 and 18291845 and 1846

Forma Laminar Airflow WorkstationClass 100

Operating and Maintenance ManualManual No: 7011845 Rev. 4

Model 1828 and 1845 Series ____________________________________________________________________

i

Read This Instruction Manual.

Failure to read, understand and follow the instructions inthis manual may result in damage to the unit, injury to operat-ing personnel, and poor equipment performance.

CAUTION! All internal adjustments and maintenance mustbe performed by qualified service personnel.

Refer to the serial tag on the back of this manual.

The material in this manual is for information purposesonly. The contents and the product it describes are subject tochange without notice. Thermo Electron Corporation makes norepresentations or warranties with respect to this manual. In noevent shall Thermo be held liable for any damages, direct or inci-dental, arising out of or related to the use of this manual.

MANUAL NUMBER 7011845

4 21732/HD-1464 8/15/05 Updated parts list ccs

-- 21077/HD-1376 9/20/02 Removed certifiers list, added reference to website ccs

3 19029/HD-1295 6/19/00 Noted FLA convenience outlet exclusion ccs

2 18826/HD-1286 2/25/00 Added mercury disposal warning ccs

-- 18582/HD-1269 11/3/99 Added airflow test sheet to Testing Procedures section ccs

1 HD-1139 10/2/97 Changed fluorescent lamp 1828/1829 heg

0 -- 8/6 Changed manual to current format

REV ECR/ECN DATE DESCRIPTION By

Warning! Lamps, thermometers and thermoreg-ulators contain mercury. Do not put in trash.Recycle or dispose as hazardous waste.

Model 1828 and 1845 Series ____________________________________________________________________

ii

Alerts the user to important operating and/or maintenance instructions. May be used alone or with other safety sym-bols. Read the accompanying text carefully.

Potential electrical hazards. Only qualified persons should perform the instructions and procedures associated withthis symbol.

Hazard. Do not touch. Instructions associated with this symbol should only be carried out when using special hand-ing equipment or when wearing special, protective clothing.

Potential biological hazards. Proper protective equipment and procedures must be used when following instructionsassociated with this symbol. Reference O.S.H.A. Regulation 1910-1030.

Potentially hazardous energy. Equipment being maintained or serviced must be turned off and locked off to preventpossible injury. Reference O.S.H.A. Regulation 1910-147.

Hot surface(s) present which may cause burns to unprotected skin or to materials which may be damaged by elevatedtemperatures

Warning. Skin damage and/or eye injury can result from the light produced by ultra violet light sources installed inthis equipment. Never work in this unit with the ultra violet light operating.

* Always use the proper protective equipment (clothing, gloves, goggles etc.).* Always dissipate extreme cold or heat, or wear protective clothing.* Always follow good hygiene practices.* Each individual is responsible for his/her own safety.

Model 1828 and 1845 Series ____________________________________________________________________

iii

Model 1828 and 1845 Series ____________________________________________________________________

iv

Table of Contents

Section 1 - Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 11.1 Preliminary Inspection . . . . . . . . . . . . . . . . . . . . . . .2 - 11.2 Visible Loss or Damage . . . . . . . . . . . . . . . . . . . . . .2 - 11.3 Responsibility for Shipping Damage . . . . . . . . . . . .2 - 1

Section 2 - Introduction . . . . . . . . . . . . . . . . . . . . . . . . .2 - 12.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

Section 3 - Installation and Start-Up . . . . . . . . . . . . . .3 - 13.1 Removal of Shipping Block . . . . . . . . . . . . . . . . . . .3 - 13.2 Installing the Feet . . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 13.3 Location and Leveling . . . . . . . . . . . . . . . . . . . . . . . .3 - 13.4 Optional Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 13.5 Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 13.6 General Recommendations . . . . . . . . . . . . . . . . . . . .3 - 13.7 Cabinet Wipe-down . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 13.8 Start-Up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 13.9 Cabinet Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 1

Section 4 - Operation . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 14.1 Controls and Indicating Devices . . . . . . . . . . . . . . . .5 - 1

Section 5 - Testing Procedures . . . . . . . . . . . . . . . . . . . .5 - 15.1 Air Velocity Profile Test . . . . . . . . . . . . . . . . . . . . . .5 - 1

Section 6 - Routine Maintenance . . . . . . . . . . . . . . . . . .7 - 16.1 Checking the Static Pressure Gauge “Zero” . . . . . . .7 - 16.2 Replacing the Pre-Filter . . . . . . . . . . . . . . . . . . . . . . .7 - 16.3 Replacing the Fluorescent Lamp . . . . . . . . . . . . . . . .7 - 1

Section 7 - Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 - 17.1 Replacing the Supply HEPA Filter . . . . . . . . . . . . . .7 - 17.2 Replacing the Blower and/or Motor . . . . . . . . . . . . .7 - 17.3 Replacing the Blower Speed Control . . . . . . . . . . . .8 - 1

Section 8 - Troubleshooting . . . . . . . . . . . . . . . . . . . . . .8 - 18.1 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . .8 - 1

Section 9 - Specifications . . . . . . . . . . . . . . . . . . . . . . . .9 - 1

Section 10 - Parts List . . . . . . . . . . . . . . . . . . . . . . . . . .10 - 1

Section 11 - Electrical Schematics . . . . . . . . . . . . . . . .11 - 1

Section 12 - Warranty Information . . . . . . . . . . . . . . .12 - 1

Section 1 - Receiving

1.1 Preliminary Inspection

This item was thoroughly inspected and carefully packedprior to shipment and all necessary precautions were taken toensure safe arrival of the merchandise at its destination.Immediately upon receipt, before the unit is moved from thereceiving area, carefully examine the shipment for loss or dam-age. Unpack the shipment and inspect both interior and exteriorfor any in-transit damage.

1.2 Visible Loss or Damage

If any loss or damage is discovered, note any discrepancieson the delivery receipt. Failure to adequately describe such evi-dence of loss or damage may result in the carrier refusing tohonor a damage claim. Immediately call the delivering carrierand request that their representative perform an inspection. Donot discard any of the packing material or move the shipmentfrom the receiving area.

1.3 Responsibility for Shipping Damage

For products shipped F.O.B. Marietta, Ohio, the responsi-bility of Thermo ends when the merchandise is loaded onto thecarrier’s vehicle.

On F.O.B. Destination shipments, Thermo and the carrier’sresponsibility ends when your Receiving Department personnelsign a free and clear delivery receipt.

Whenever possible, Thermo will assist in settling claimsfor loss or in-transit damage.

Section 2 - Introduction

2.1 Description

The horizontal laminar flow clean cabinet provides a par-ticulate-free work environment for the performance of sterileand/or dust sensitive procedures. The unit is recommended foruse in sterile apparatus assembly, media preparation sterilitytesting, sterile filling and related industrial and biomedical pro-cedure.

The cabinet provides product protection only. The opera-tor/technician is exposed to any particulate, aerosol or gasreleased from the work procedures. Therefore, proceduresinvolving viable agents, work involving drugs, or chemicalsthat produce a toxic, allergic or carcinogenic response inhumans should not be performed within this unit.

Consult an institutional bio-safety officer or an industrialhygienist before beginning any procedure that might endangerthe operator or contaminate the environment.

Model 1828 and 1845 Series __________________________________________________________Receiving / Introduction

2 - 1

Section 3 - Installation and Start-Up

3.1 Removal of Shipping Block

Before putting the unit into operation, remove the card-board shipping block from the back of the blower. Remove theprefilter and the prefilter grille to gain access for its removal.

3.2 Installing the Feet

The packing list includes eight white rubber “stick-on”feet. Install these feet before placing the unit in its final loca-tion.

3.3 Location and Leveling

Locate the cabinet on a level surface in an area of mini-mum temperature change. The cabinet should be placed awayfrom personnel traffic, air-conditioning or heating ductwork,and/or laboratory windows and doors. Proper cabinet location isessential as drafts can disrupt critical airflow characteristics andallow room contaminants to enter or escape the cabinet workarea.

Place the cabinet on an existing table or counter. The depthof the table or table must be at least 36 inches to accommodatethe unit.

The cabinet weighs approximately 475 lbs.

Allow a 4” minimum clearance between the top of the cab-inet and the laboratory ceiling to ensure an adequate air supplyto the blower.

Place a bubble-type level on the work surface and ensurethe cabinet is level.

3.4 Optional Stand

If the optional stand is to be used, adjust the leg levelers toobtain the correct height (30”-36”) for the work surface. Makesure all four levelers are in full contact with the floor.

3.5 Power Connection

Connect the power cord to a grounded dedicated powersource. Refer to the electrical data plate mounted on the unit,or the electrical schematic, for exact electrical specifications.

3.6 General Recommendations

• Keep the activity in the room to a minimum when the cabi-net is in use.

• Keep all laboratory doors closed to prevent drafts that willdisturb critical airflow characteristics.

• Segregate clean and dirty materials.• Do not place anything on the intake grill.• The operator should work at a normal pace, avoiding rapid

arm movements.• Practice good aseptic technique to ensure safe use of the

cabinet.• To increase the life of the HEPA filters, check the pre-fil-

ters regularly and replace them as necessary. See Section6.2.

3.7 Cabinet Wipe-down

Before operating the cabinet, allow the unit to run forabout 30 minutes. Then turn the blowers off and wipe the entireinterior surface with a laboratory detergent/disinfectant toremove any remaining surface dirt.

3.8 Start-Up Procedure

1. Turn the cabinet lights on.2. Check the intake grille to ensure that it is not blocked.3. Turn on the blower on and allow the unit to warm up for

15 minutes before use.4. Wash your hands and lower arms with germicidal deter-

gent.5. Disinfect the entire work area.6. Place everything needed in the cabinet.

3.9 Cabinet Shutdown

1. Surface decontaminate all surfaces with the appropriatedisinfectant and enclose all equipment that has been indirect contact with the bedding.

2. Allow the cabinet to run for at least five minutes with noactivity to allow time for all airborne contaminants to bepurged from the work area.

3. Remove all equipment. 4. Wipe down all interior surfaces with the appropriate dis-

infectant to the work being performed.

Model 1828 and 1845 Series ___________________________________________________________Installation and Start-Up

3 - 1

Section 4 - Operation

4.1 Controls and Indicating Devices

Blower SwitchThe blower switch controls the power to the blower motor.

Light SwitchThe light switch controls power to the fluorescent lamps in

the work area or the optional ultra-violet lamp.

Static Pressure Gauge (In. W.G.)The optional static pressure gauge measures the air pres-

sure differential across the filters, providing an indication of fil-ter “loading”. As the filters become dirty, the resistance to airpassage increases, and the reading on the static pressure gaugeincreases accordingly. When the reading increases by 50%,check the cabinet airflow with a thermoanemometer. The filtersshould be replaced if they are shown to be inefficient due toloading.Note: Static pressure gauge should not be used as a directmeasure of airflow.

Blower Speed ControlNote: The blower speed is set at the factory and should only bechanged by a qualified technician.

The blower speed control is located beside the blowerswitch on the control panel. The speed control is used to adjustthe air velocity from the blower motor. A clockwise turn of theadjustment screw increases the air velocity.

Ultra-Violet Light (optional)

Potential eye damage may result from viewingthe light produced by ultra violet light sourcesinstalled in this equipment. Never work in thisunit with the ultra violet light operating.

Cabinets may be equipped with an ultra-violet germicidallight as optional equipment. These lamps lose their effective-ness over a period of time and should be replaced about every 6months. A single 115V (1A maximum) electrical outlet for con-necting the optional ultra-violet light is located beside the Resetbutton.

Section 5 - Testing Procedures

5.1 Air Velocity Profile Test

Note: A drop in line voltage will cause a corresponding drop inairflow. Check the voltage to the unit before airflow measure-ment. If low voltage is a problem, this must be corrected in thebuilding system.

Airflow measurements should be taken by using a ther-moanometer mounted on a support stand. The measurementsshould be taken following a lateral pattern six inches inside thefront opening and six inches from the solid cabinet surfaceswith six inch centers. These readings should fall in the range of70-110 LFPM (linear feet per minute) with an average of about90 LFPM.

If the airflow readings do not average about 90 LFPM,adjust the blower speed control to attain this value. As the fil-ters load with particulate, airflow will begin to drop. If adjust-ment of the speed control cannot compensate for the filter load-ing (the control is turned up to full and at least 80 LFPM can-not be obtained), then the filters must be changed.

A list of certification companies is included on theThermo website (thermo.com/forma), or call the TechnicalServices department. See Page iii.

Model 1828 and 1845 Series ______________________________________________________Operation / Testing Procedures

5 - 1

5 - 3

Section 6 - Routine Maintenance

6.1 Checking the Static Pressure Gauge “Zero”

In order to provide an accurate reading, the indicating nee-dle of the static pressure gauge should be precisely at zerowhen the cabinet is completely shut off. If the cabinet is con-nected to a central exhaust system, the exhaust system mustalso be shut off.

Upon initial start-up or after the HEPA filter has beenreplaced, the static pressure gauge should read (or be set to)zero when the cabinet is not operating. When the cabinet isrestarted and proper airflow balance has been achieved, thegauge reading should be recorded. This reading will serve as abaseline of subsequent filter loading. If the reading increases byapproximately 50%, the airflow balance should be checkedagain.

6.2 Replacing the Pre-Filter

The pre-filter is used to extend the effective life of theHEPA filter. The pre-filter should be replaced three times ayear, depending upon environmental conditions. The pre-filteris located at the air intake duct at the top of the unit.

It is not necessary to decontaminate the cabinet beforereplacing the pre-filter. Do not turn the cabinet off. Allow it torun during the replacement procedure.

1. Remove the pre-filter by lifting it straight up. 2. Install a new (or cleaned) foam pre-filter.

6.3 Replacing the Fluorescent Lamp

1. Turn the cabinet power off and disconnect it from thepower source.

2. Remove the pre-filter and grille from the top of the unit.3. Remove the tie wrap securing the line cord to the con-

trol panel from the rear interior wall of the blower com-partment.

4. Remove the screws securing the control panel and slidethe control panel out.

5. Grasp the fluorescent lamp on the right end by the sock-et and gently push to the left and pull out to remove thelamp.

6. Replace with a new lamp.

Model 1828 and 1845 Series _____________________________________________________Routine Maintenance / Service

7 - 1

Section 7 - Service

Before any service work is performed on thecabinet, decontaminate the unit!

De-energize all potential sources of energy to thisunit and lockout/tagout their controls. (O.S.H.A.Regulation, Section 1910-147.)

7.1 Replacing the Supply HEPA Filter

1. Remove the pre-filter and the plastic egg crate grille.2. Remove the 8 screws securing the blower motor assem-

bly and remove the tie wrap on the back wall. Removethe blower motor.

3. Remove the screws securing the motor mount assemblyand lift the entire assembly out of the unit.

4. Carefully remove the wooden drive wedges holding theHEPA filter in place and lift the filter out of the top ofthe unit.

5. With a vacuum cleaner, vacuum the entire filter seatingsurfaces.

6. Slide the replacement filter in place and verify that thegasket seal is evenly distributed.

7. Set the longer wedge back into the cabinet with thestraight side against the back of the filter. Next set theshorter drive wedge into position with its straight sidefacing the back of the hood. Drive the wedge a little at atime on each side until the filter is sealed. The neoprenegasket seal should be compressed at least 50%.

7.2 Replacing the Blower and/or Motor

Note: Access to the blower is through the pre-filter grille. 1. Loosen the set bolt on the blower shaft wheel from

inside the left side of the scroll (as viewed from theback).

2. Remove the 3 bolts and washers securing the motor tothe scroll on the right side of the blower assembly.

3. Disconnect the green ground wire. 4. Disconnect the wiring at the junction box. Note the

wiring configuration.5. Remove the blower motor, and replace it with the new

motor. Align the blower wheel, and tighten.6. Connect the wiring in the same configuration as the old

blower motor.7. Replace the pre-filter grille and pre-filter.

7.3 Replacing the Blower Speed Control

1. Remove the pre-filter grille and prefilter. Locate theblower speed control mounted on the front (right side).

2. Locate the blower speed control mounted on the side ofthe blower chamber below the power switch.

3. Remove the nut from the blower speed adjustment con-trol.

4. Unsolder the wiring to the control. Note the wiring con-figuration.

5. Remove the speed control potentiometer.6. Install the new blower speed control by reversing the

above procedure.7. Replace the pre-filter and the pre-filter grille.

Section 8 - Troubleshooting

8.1 Troubleshooting Guide

The following is a guide to troubleshooting the safety cabi-net system.

Before any service work is performed on thecabinet, decontaminate the unit!

Problem: Air flow in the cabinet work area and through theexhaust filter is inadequate.

Possible Causes:Unit not plugged in. Blower motor overheated due to low electrical voltage.Step up voltage or increase the speed control. Blower motor or speed control is defective. Replace thespeed control. If the static pressure gauge reading has increasedapproximately 50% from its initial readings, the filterhas likely loaded with dirt and the speed control must beadjusted. If proper airflow cannot be reached by adjust-ing the speed control, decontaminate the cabinet andreplace all HEPA filters.

Problem: Static pressure gauge does not work.Possible Causes:

Verify that the hose is tightly attached to a high pressureport of the gauge and to the cabinet (front top right ofthe service box). If properly tightened, the static pres-sure gauge is likely defective and should be replaced.

Problem: Noisy fan or motor operation. Possible Causes:

Debris in the blower housing. Remove the access paneland inspect motor and blower assembly. Remove anydebris. Overheated speed control due to excessive heat load inthe work area. Determine and decrease source of theheat load. Defective speed control. Replace the speed control. Motor failure or motor out of balance. Balance orreplace the motor.

Model 1828 and 1845 Series _________________________________________________________________Troubleshooting

8 - 1

Problem: Fluorescent lights are not working. Possible Causes:

Plug and socket at the ends are improperly connected.Check to see that the lamp pins contact both sockets.Lamp improperly grounded. Have a qualified electriciantrace the source of the bad ground and correct it. Defective or burned-out lamp. Replace the fluorescenttube. Ballast failure. Replace the defective ballast.

Section 9 - Specifications

Model 1828/1829 6’ - BenchtopInterior Dimensions 70.5”W x 28.4”H x 19.1” F-B

(179.1cm x 72.1cm x 48.5cm) Exterior Dimensions 73.2”W x 54.1”H x 34.0” F-B

(74.9cm x 160cm x 130.8cm)Electrical 12.0 FLA 115V, 60Hz Shipping Weight 530 lbs. (240 Kg)

Model 1845/1846 4’ - BenchtopInterior Dimensions 46.5”W x 34.4”H x 19.1” F-B

(118.1cm x 87.4cm x 48.5cm)Exterior Dimensions 49.2”W x 59.1”H x 34.0” F-B

(125.0cm x 150.1cm x 86.4cm)Electrical 11.0 FLA

Shipping Weight 420 lbs. (191 Kg)

Model 1828 and 1845 Series __________________________________________________________________Specifications

9 - 1

Model 1828 and 1845 Series ___________________________________________________________________Specifications

9 - 2

Model 1828 and 1845 Series ___________________________________________________________________Specifications

9 - 3

Section 10 - Parts List

Model 1828

Qty Stock # Description 2 141041 Lamp, Fluorescent (F40-CW)1 142033 Lamp Fixture (F40-T12) 1 170024 Motor Capacitor, 5 MFD, 370V1 190109 Triac Motor Speed Control 1 156038 Blower Motor, 1/2 HP1 230054 Circuit Breaker 15 Amp 1 285812 Plug, Hospital Grade, 20A, 3-Wire

12ft 73036 16/3 Line Cord2 460022 Outlet, 3 W, Snap-in 1 760073 Supply Filter, HEPA, 36x72x6 1 760088 Foam Pre-filter, 21.4x36.3x1

Model 1829

Qty Stock # Description 2 141041 Lamp, Fluorescent (F40-CW) 1 142033 Lamp Fixture, F40-T12 1 500008 Ballast1 170041 Motor Capacitor, 5 MFD, 370V1 190109 Triac Motor Speed Control 1 156099 Blower Motor, 1/2 HP1 230054 Circuit Breaker 15 Amp 1 430017 Export Line Cord with Plug 1 460022 Outlet, 3 W, Snap-in 1 460102 Convenience Outlet 1 760073 Supply Filter, HEPA, 36x72x6 1 760088 Foam Pre-filter, 21.4x36.3x1 1 275012 1.5 KVA Transformer

Model 1828 and 1845 Series _____________________________________________________________________Parts List

10-1

Model 1845

Qty Stock # Description2 141022 Lamp, Fluorescent (F3012CW/RS) 1 142016 Lamp Fixture, F3-T12 1 170024 Motor Capacitor, 5 MFD, 370V1 190109 Triac Motor Speed Control 1 156038 Blower Motor, 1/2 HP1 230054 Circuit Breaker 15 Amp 1 285812 Plug, Hospital grade, 20A, 3-Wire 2 460022 Outlet, 3 W, Snap-in 1 760074 Supply Filter, HEPA, 36x48x6 1 760046 Foam Pre-filter, 48.6x1

12ft 73036 16/3 Line Cord

Model 1846

Qty Stock # Description 2 141022 Lamp, Fluorescent (F3T12CW/RS) 1 142016 Lamp Fixture, F30T12 1 170041 Motor Capacitor, 5 MFD, 370V1 190109 Triac Motor Speed Control 1 156099 Blower Motor, 1/2 HP1 230054 Circuit Breaker 15 Amp 1 460102 Outlet, 15A, 250V1 760074 Supply Filter, HEPA, 36x48x6 1 760046 Foam Pre-filter, 48.6x1 1 275012 1.5 KVA Transformer 1 500020 Ballast, 50 Hz, F30 Lamps 8ft 430017 16/3 Line Cord with Plug

Model 1828 and 1845 Series ______________________________________________________________Electrical Schematics

11-1


11-2


11-3


11-4


11-5

Electrical SchematicForma Model:

1845Lam Flow Work Stn.

1845-70-0-D Rev. 2Page 1 of 2

11-6

Electrical SchematicForma Model:

1845Lam Flow Work Stn.

1845-70-0-D Rev. 2Page 2 of 2



11-7


11-8

THERMO ELECTRON CORPORATION LAMINAR FLOW EQUIPMENT WARRANTY USAThe Warranty Period starts two weeks from the date your equipment is shipped from our facility. This allows shipping timeso the warranty will go into effect at approximately the same time your equipment is delivered. The warranty protectionextends to any subsequent owner.

During the first thirty-six (36) months, component parts proven to be non-conforming in material or workmanship will berepaired or replaced at Thermo’s expense, including labor. Installation, calibration and certification is not covered by thiswarranty agreement. The Technical Services Department must be contacted for warranty determination and direction priorto performance of any repairs. Expendable items, glass, filters and gaskets are excluded from this warranty.

Replacement or repair of component parts or equipment under this warranty shall not extend the warranty to either theequipment or to the component part beyond the original warranty period. The Technical Services Department must giveprior approval for return of any component or equipment. At Thermo’s option, all non-conforming parts must be returned toThermo postage paid and replacement parts are shipped FOB destination.

THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, WHETHER WRITTEN, ORAL, ORIMPLIED. NO WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL APPLY.Thermo shall not be liable for any indirect or consequential damages including, without limitation, damages to lost profits orloss of products.

Your local Thermo Sales Office is ready to help with comprehensive site preparation information before your equipmentarrives. Printed instruction manuals carefully detail equipment installation, operation and preventive maintenance.

If equipment service is required, please call your Technical Services Department at 1-888-213-1790 (USA and Canada) or1-740-373-4763. We’re ready to answer your questions on equipment warranty, operation, maintenance, service, and spe-cial applications. Outside the USA, contract your local distributor for warranty information.

ISO9001REGISTERED

Rev. 3 4/03

THERMO ELECTRON CORPORATION LAMINAR FLOW EQUIPMENT WARRANTY INTERNATIONAL

The Warranty Period starts two months from the date your equipment is shipped from our facility. This allows shippingtime so the warranty will go into effect at approximately the same time your equipment is delivered. The warranty protec-tion extends to any subsequent owner.

During the first thirty six (36) months, component parts proven to be non-conforming in material or workmanship will berepaired or replaced at Thermo’s expense, excepting labor. Installation, calibration and certification is not covered by thiswarranty agreement. The Technical Services Department must be contacted for warranty determination and directionprior to performance of any repairs. Expendable items, glass, filters and gaskets are excluded from this warranty.

Replacement or repair of component parts or equipment under this warranty shall not extend the warranty to either theequipment or to the component part beyond the original warranty period. The Technical Services Department must giveprior approval for return of any component or equipment. At Thermo’s option, all non-conforming parts must be returnedto Thermo postage paid and replacement parts are shipped FOB destination.

THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, WHETHER WRITTEN, ORAL, ORIMPLIED. NO WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL APPLY.Thermo shall not be liable for any indirect or consequential damages including, without limitation, damages to lost profitsor loss of products.

Your local Thermo Sales Office is ready to help with comprehensive site preparation information before your equipmentarrives. Printed instruction manuals carefully detail equipment installation, operation and preventive maintenance.

If equipment service is required, please call your Technical Services Department at 1-888-213-1790 (USA or Canada) or1-740-373-4763. We’re ready to answer your questions on equipment warranty, operation, maintenance, service, andspecial applications. Outside the USA, contract your local distributor for warranty information.

ISO9001REGISTERED

Rev. 3 4/03

Locating a Certification Company Biological safety cabinet certification consists of a series of tests designed to verify that the cabinet is performing within operating parameters established by the manufacturer. To assure that a biological safety cabinet is operating as intended, each cabinet should be field-tested at the time of installation and at least annually thereafter. Cabinets should be re-certified whenever HEPA filters are changed, internal maintenance is performed, or is relocated. Three industry-related organizations maintain lists of companies and individuals who are active in the certification industry. You may contact these organizations at the addresses listed below. NSF International (NSF) and International Air Filtration Certifiers Association (IAFCA) sponsor certifier accreditation programs. Accredited certifiers have demonstrated proficiency at testing biological safety cabinets by successfully completing written and/or practical examinations. Biohazard Cabinet Field Certifier Program NSF International PO Box 130140 789 N. Dixboro Rd Ann Arbor, MI 48113-0140 Telephone (734) 769-8010 Or (800) NSF-MARK Fax (734) 769-0109 http://www.nsf.org/Certified/Biohazard-Certifier

IAFCA PO Box 12155 Columbus, OH 43212 Telephone (888) 679-1904 Fax (614) 486-1108 http://www.iafca.com/certifier.html

The Controlled Environment Testing Association (CETA) is a trade association devoted to promoting and developing quality assurance within the controlled environment testing industry. A list of active members is available by contacting the organization. Controlled Environment Testing Association 1500 Sunday Drive Suite 102 Raleigh, NC 27607 Telephone (919) 787-5181 Fax (919) 787-4916 http://www.cetainternational.org/members/corp_indiv.htm For your convenience we have included a partial list of agencies that perform certification on our website. If you do not find someone listed in your area, please contact Thermo Forma’s technical services department for additional references.

Thermo Electron CorporationControlled Environment Equipment

Millcreek Road, P.O. Box 649Marietta, Ohio 45750

U.S.A.

Telephone (740) 373-4763Telefax (740) 373-4189

Documents

Models: 1828 and 1829 1845 and 1846from personnel traffic, air-conditioning or heating ductwork, and/or laboratory windows and doors. Proper cabinet location is essential as drafts