Thermo 1284 Operating instructions

Model 1284 Series

Class II, A2 Biological Safety Cabinet

Operating and Maintenance

Manual 7021284 Rev. 3

Thermo Electron CorporationThermo Electron Corporation

MANUAL NUMBER 7021284

3 23429 4/3/06 Updated low flow alarm from 191168 to 191780 ccs

2 23059/HD-1472 1/17/06 GFI reset switch reminder aks

-- -- 6/20/05 Added UV replacement info to Page 9-3 ccs

-- 21497/HD-1424 9/8/04 Added factory-installed anchoring system accessory ccs

-- -- 6/7/04 Clarify test pages ccs

1 22280 4/20/04 Update to incorporate new constricted testing method aks

22197 4/8/04 Blower motor replacement aks

-- 21984 11/13/03 Updated 1284 test sheet (added “four inches above window edge”) ccs

0 21741/HD-1405 8/7/03 Release 6 aks

REV ECR/ECN DATE DESCRIPTION By

Preface

Model 1284 Series i

Important Read this instruction manual. Failure to read, understand and

follow the instructions in this manual may result in damage to the unit,

injury to operating personnel, and poor equipment performance. ▲

Caution All internal adjustments and maintenance must be performed by

qualified service personnel. ▲

The material in this manual is for information purposes only. The contents

and the product it describes are subject to change without notice. Thermo

Electron Corporation makes no representations or warranties with respect

to this manual. In no event shall Thermo be held liable for any damages,

direct or incidental, arising out of or related to the use of this manual. ▲

Caution Lamps, thermometers and thermoregulators contain mercury. Do

not put in trash! Recycle or dispose as hazardous waste. ▲.

Thermo Electron Corporationii Model 1284 Series Thermo Electron Corporation

Preface

Caution Alerts the user to important operating and/or maintenance

instructions. May be used alone or with other safety symbols. Read the

accompanying text carefully. ▲

Caution Potential electrical hazards Only qualified persons should perform

the instructions and procedures associated with this symbol. ▲

Hazard Do not touch. Instructions associated with this symbol should

only be carried out when using special handing equipment or when

wearing special, protective clothing. ▲

Potential biological hazards Proper protective equipment and procedures

must be used when following instructions associated 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 prevent possible injury. Reference

O.S.H.A. Regulation 1910-147. ▲

Caution Hot surface(s) present which may cause burns to unprotected skin

or to materials which may be damaged by elevated temperatures. ▲

Warning Skin damage and/or eye injury can result from the light

produced by ultra violet light sources installed in this equipment. Never

work in this unit with the ultra violet light operating. ▲

Marking of electrical and electronic equipment, which applies to electrical

and electronic equipment falling under the Directive 2002/96/EC

(WEEE) and the equipment that has been put on the market after 13

August 2005.

This product is required to comply with the European Union’s Waste

Electrical & Electronic Equipment (WEEE) Directive 2002/96/EC. It is

marked with the WEEE symbol. Thermo Electron has contracted with one

or more recycling/disposal companies in each EU Member State European

Country, and this product should be disposed of or recycled through them.

Further information on Thermo Electron’s compliance with this directive,

the recyclers in your country and information on Thermo Electron

products will be available at www.thermo.com.

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.

✔

Thermo Electron Corporation Model 1284 Series iiiThermo Electron Corporation

Preface

Model 1284 Series ivThermo Electron Corporation

Table of Contents

Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

Plumbing Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

Exhaust Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

Certification Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Locating a Certification Company . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

General Cautions and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

Cabinet Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1

Use of Auxiliary Equipment in Cabinet . . . . . . . . . . . . . . . . . . . . . . .7-1

Cabinet Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1

Start-Up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2

Section 1

Section 2

Section 3

Section 4

Section 5

Section 6

Section 7

v Model 1284 Series Thermo Electron Corporation

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1

Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1

Zeroing the Static Pressure Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1

Checking Static Pressure Gauge “Zero” . . . . . . . . . . . . . . . . . . . . . . .9-1

Adjusting the Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-2

Biological Safety Cabinet Test Grids . . . . . . . . . . . . . . . . . . . . . . . . . .9-3

Blower Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-5

Receptacle Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-5

UV Switch Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1

Replacing Blower Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1

Replacing Filters, All Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-2

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-1

Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-3

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-1

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-1

Filter Pressure Drop Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . .13-3

Electrical Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-1

Warranty Information

Table of Contents

Section 8

Section 9

Section 10

Section 11

Section 12

Section 13

Section 14

Model 1284 Series 1-1Thermo Electron Corporation

Section 1 Packing List

Included with the installation/operation manual are four identification

index buttons. These buttons may be used to identify the type of service

supplied to the service valves. Also included in a separate bag is the drain

valve. Attached to the valve is a small Allen wrench used for calibrating the

Static Pressure Gauge. This Allen wrench should be kept with the manual

at all times.

Model 1284 Series 2-1Thermo Electron Corporation

Section 2 Introduction

The Models 1284, 1285, 1286 and 1287 are Class II, Type A2 cabinets.

The “Type A2” designation indicates two alternative uses of the cabinet.

The unit may be vented directly into the laboratory room or vented to the

outside atmosphere, through an in-house exhaust system. Either usage of

the cabinet offers both personnel and product protection.

The cabinet can be used in low-to-moderate risk environments and is

designed to NSF, International Standard #49. Class 1, 2, and 3 (low-to-

moderate risk) agents are described in the “Biosafety In Microbiological

And Biomedical Laboratories”; CDC NIH Publication No. (NIH) 88-

8395, March 2002.

The cabinet’s window permits the user to place auxiliary equipment and

research implements in the work area. The work opening must be held to

10 inches during all work procedures. If the window is raised higher than

the designated 10 inches, the air barrier at the front of the cabinet will be

weakened and containment will be seriously impaired.

Clean, filtered air descends through the work zone with approximately

40% being discharged through the exhaust HEPA filter with the remaining

air recirculating through the supply HEPA filter into the work area.

Exhausted air is replaced by room air entering the system through the front

access opening.

Room air entering the work zone, through the front access opening,

completes the air barrier at the unit face and is responsible for the

containment properties of the unit. All work must be performed beyond

the intake grille, on the solid work tray.

Theory of Operation

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