Amsco Century User manual

OPERATOR MANUAL
Amsco®CenturyTM
Medium Steam Sterilizer 26" x 37.5"
(04/27/11) P129373-496
Rev. 1Rev. 0

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Table of Contents Operating Instructions 129373-496
A WORD FROM STERIS CORPORATION
A summary of the safety precautions to be observed when operating or
servicing this equipment can be found in Section 1 of this manual. Do not
operate or service the sterilizer until you have become familiar with this
information.
This sterilizer is not designed to process flammable liquids nor liquids in
containers that are not designed for sterilization. Any alteration of the sterilizer
which affects its operation will void the warranty and could violate state and
local regulations and jeopardize insurance coverage.
Advisory
This manual contains important information on proper use of the Amsco®
CenturyTM Medium Steam Sterilizer 26" X 37.5". Allpersonnelinvolvedinthe
use of this equipment must carefully review and comply with the
warnings, cautions, and instructions contained in this manual. These
instructions are important to protect the health and safety of personnel
operating an Amsco Century Medium Steam Sterilizer and should be retained
in a conveniently accessible area for quick reference.
This sterilizer is specifically designed to process goods using only the cycles
as specified in this manual. If there is any doubt about a specific material or
product, contact the manufacturer of the product for the recommended
sterilization technique.
STERIS carries a complete line of accessories for use with this sterilizer to
simplify, organize, and assure sterility of the sterilization process. Instrument
trays and biological/chemical monitoring systems are all available to fulfill
your facility's processing needs. A STERIS representative will gladly review
these with you.
A thorough preventive maintenance program is essential to safe and proper
sterilizer operation. Comprehensive instructions for routine preventive main-
tenance can be found in
Maintenance Manual, P-764330-117 , available
separately.
You are encouraged to contact STERIS concerning our Preventive Mainte-
nance Agreement. Under the terms of this agreement, preventive mainte-
nance, adjustments, and replacement of worn parts are done on a scheduled
basis to assure equipment performance at peak capability and to help avoid
untimely or costly interruptions. STERIS maintains a nationwide staff of well-
equipped, factory-trained technicians to provide this service, as well as
expert repair services. Please contact your STERIS representative for details.
Service Information
The Amsco Century Medium Steam Sterilizer is designed for efficient steriliza-
tion of non-porous and porous, heat and moisture-stabile materials. The
Amsco Century Medium Steam Sterilizer is available in the following configu-
rations:
26" x 37.5" x 36" (660 x 953 x 914 mm) Single Door Prevacuum
26" x 37.5" x 48" (660 x 953 x 1219 mm) Single Door Prevacuum
26" x 37.5" x 48" (660 x 953 x 1219 mm) Double Door Prevacuum
26" x 37.5" x 60" (660 x 953 x 1524 mm) Single Door Prevacuum
26" x 37.5" x 60" (660 x 953 x 1524 mm) Double Door Prevacuum
Indications for Use
© 2011 –STERIS Corporation. All rights reserved. Printed in U.S.A.

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129373-496 Operating Instructions Table of Contents
CYCLES RECOMMENDED STERILIZE STERILIZE DRY TIME
LOADS TEMP. TIME
PREVACUUM Heat and moisture-stabile 132°C 4 minutes 5 minutes
materials utilizing vacuum- (270°F)
assisted air removal process.
GRAVITY Heat and moisture-stabile 132°C 15 minutes 5 minutes
materials (270°F)
LIQUIDS Liquids and media in 121°C 45 minutes N/A
vented borosilicate glass (250°F)
containers.
The Amsco Century Medium Steam Sterilizer is equipped with the following default cycles and cycle
values (see Section 7 for detailed cycle parameters and instructions for modifying cycle parameters).
Manufactured by:
STERIS Mexico S. de R.L. de C.V.
Avenida Avante 790
Parque Industrial Guadalupe
Guadalupe, Nuevo Leon, Mexico C.P. 67190
Sales and Service:
STERIS Corporation
5960 Heisley Road
Mentor, Ohio 44060
440-354-2600 • 800-444-9009
www.steris.com
STERIS Limited
Chancery House
190 Waterside Road
Hamilton Industrial Park
Leicester
LE5 1QZ UK
The base language of this document is
ENGLISH. Any translations must be
made from the base language
document.
0086

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Table of Contents Operating Instructions 129373-496
TABLE OF CONTENTS
1 Listing ofWarnings and Cautions ..............................................1-1
2 InstallationVerification.................................................................2-1
2.1 Installation Checklist .......................................................................... 2-1
2.1.1 Service Clearance ...................................................................... 2-1
2.1.2 Plumbing Services ...................................................................... 2-1
2.1.3 Electrical Service ........................................................................ 2-2
2.1.4 Sterilizer Final Check.................................................................. 2-2
2.1.5 Cycle Operation ......................................................................... 2-2
2.2 Technical Specifications ..................................................................... 2-3
2.2.1 Overall Size ................................................................................ 2-3
2.2.2 Weight ........................................................................................ 2-3
2.2.3 Utility Requirements ................................................................... 2-3
2.2.4 Environmental Conditions .......................................................... 2-4
3 Techniques of Sterilization..........................................................3-1
3.1 General .............................................................................................. 3-1
3.2 Recommended Sterilization Variables ............................................... 3-1
3.2.1 Prevacuum Cycle ....................................................................... 3-1
3.2.2 Gravity Cycle ............................................................................. 3-2
3.2.3 Liquid Cycle ............................................................................... 3-2
3.3 Recommendations for Sterilizing Liquids .......................................... 3-3
3.4 Recommendations for Enhancing the Sterilization Process .............. 3-4
3.5 Control Measures for Verifying Sterilization Process ........................ 3-5
3.5.1 Biological Monitors ..................................................................... 3-5
3.5.2 Testing for Prevacuum Efficiency ............................................... 3-5
3.6 Dart (Bowie-Dick) Test ...................................................................... 3-6
3.7 Vacuum Leak Test ............................................................................. 3-6
4 Component Identification............................................................4-1
4.1 Main Power Disconnect Switch ......................................................... 4-2
4.2 Supply Valves.................................................................................... 4-2
4.3 Control Panel ..................................................................................... 4-3
4.3.1 Touch Screen ............................................................................... 4-3
4.3.2 Printer ......................................................................................... 4-4
4.4 Unload End Control Panel (Double Door Units) ................................ 4-5
4.5 Hinged-Door Operation..................................................................... 4-6
4.6 Horizontal-sliding Door Operation ..................................................... 4-7
4.7 Emergency Door Opening Procedure .............................................. 4-8
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5 Control Interface ..........................................................................5-1
5.1 General.............................................................................................. 5-1
5.2 Cycle Select Menus .......................................................................... 5-2
5.2.1 Processing Cycles ..................................................................... 5-2
5.2.2 Test Cycles................................................................................. 5-4
5.3 Out-of-cycle Options Menus ............................................................. 5-5
6 Sterilizer Operation ......................................................................6-1
6.1 Before Operating Sterilizer ................................................................ 6-1
6.2 Loading/Unloading Sterilizer: Rack and Shelves .............................. 6-3
6.2.1 Loading Car Instructions: Loading ............................................ 6-4
6.2.2 Loading Car Instructions: Unloading ......................................... 6-5
6.3 Prevacuum Cycle Operation ............................................................. 6-5
6.4 Gravity Cycle Operation ................................................................. 6-12
6.5 Liquid Cycle Operation ................................................................... 6-18
6.6 Leak Test Cycle Operation .............................................................. 6-23
6.7 Dart®Warm-up Cycle Operation ..................................................... 6-26
6.8 Dart®Test Cycle Operation ............................................................. 6-29
6.9 Aborting Cycles .............................................................................. 6-31
7 Entering Access Code.................................................................7-1
7.1 Sterilizer Usage Locked Out ............................................................. 7-1
7.2 Change Values Menu Locked Out .................................................... 7-2
8 Programming Cycle Values .........................................................8-1
8.1 Access Cycle Menu–Change Cycle Values ..................................... 8-2
8.2 Change Values Procedure ................................................................ 8-4
9 Programming Operating Parameters .........................................9-1
9.1 Access Change Values Menu ........................................................... 9-1
9.2 Time/Date .......................................................................................... 9-2
9.3 Too Long In Phase ............................................................................. 9-4
9.4 Setup ................................................................................................. 9-8
9.4.1 Temp/Pres Units ......................................................................... 9-9
9.4.2 Audible Signals ........................................................................ 9-12
9.4.3 Utility Shutdown ....................................................................... 9-14
9.4.4 Print Format .............................................................................. 9-20
9.4.5 Duplicate Print .......................................................................... 9-22
9.4.6 Turn Off Printer ......................................................................... 9-23
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10 Out of Cycle Options..................................................................10-1
10.1 General .......................................................................................... 10-1
10.2 Status Print .................................................................................... 10-2
10.3 Duplicate Print ............................................................................... 10-3
10.4 Paper Feed .................................................................................... 10-3
10.5 Change Values .............................................................................. 10-4
10.6 Display Values ............................................................................... 10-4
10.6.1 Cycles .................................................................................... 10-5
10.6.2 Time/Date ............................................................................... 10-8
10.6.3 Too Long in Phase .................................................................. 10-9
10.6.4 Setup ...................................................................................... 10-9
10.7 Print Values .................................................................................. 10-11
10.7.1 All Values .............................................................................. 10-11
10.7.2 All Values Changed .............................................................. 10-12
10.7.3 A Particular Cycle................................................................. 10-12
10.8 Standby ....................................................................................... 10-14
10.9 Display Sensors .......................................................................... 10-15
10.10 Supervisory ............................................................................... 10-16
10.10.1 Change Customer Name ................................................... 10-18
10.10.2 Change Sterilizer ID ........................................................... 10-19
10.10.3 Default Values .................................................................... 10-20
10.10.4 Change Access Codes ..................................................... 10-20
• Change Values Access Codes ................................................. 10-20
• Sterilizer Operation Access Codes .......................................... 10-24
• Supervisory Access Code ........................................................ 10-28
10.10.5 Display Access Codes ...................................................... 10-30
10.10.6 RS-232 Interface................................................................. 10-32
10.10.7 Override Interlocks ............................................................ 10-33
10.11 Service Mode ............................................................................ 10-34
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129373-496 Operating Instructions Table of Contents
11 Routine Maintenance.................................................................11-1
11.1 Preventive Maintenance Schedule ................................................ 11-1
11.1.1 Clean Chamber Drain Strainer ............................................... 11-3
11.1.2 Clean Chamber ...................................................................... 11-3
11.2 Weekly Maintenance ..................................................................... 11-4
11.2.1 Flush Chamber Drain ............................................................. 11-4
11.2.2 Change Printer Paper Roll ...................................................... 11-5
11.2.3 Change Printer Ink Cartridge ................................................. 11-7
11.3 Quarterly Maintenance .................................................................. 11-9
11.3.1 Replace Door Seal ................................................................. 11-9
12 Troubleshooting.........................................................................12-1
12.1 General .......................................................................................... 12-1
12.1.1 Typical Alarm Screen ............................................................. 12-1
12.1.2 Typical Alarm Printout............................................................. 12-2
12.2 In-Cycle Alarms............................................................................. 12-2
12.2.1 Too Long In Charge ................................................................ 12-2
12.2.2 Too Long In Exhaust ............................................................... 12-3
12.2.3 Too Long In Evacuation .......................................................... 12-3
12.2.4 Too Long In Air Break ............................................................. 12-4
12.2.5 Under Sterilize Temperature................................................... 12-5
12.2.6 Over Sterilize Temperature ..................................................... 12-6
12.2.7 Door Unsealed ....................................................................... 12-7
12.2.8 Chamber Pressure/Temperature Failure ................................ 12-7
12.2.9 Exhaust Rate Too Fast ............................................................ 12-8
12.2.10 Exhaust Rate Too Slow ......................................................... 12-9
12.2.11 Reference Deviation Alarm................................................... 12-9
12.2.12 Door Pressure Lock (Hinged Door Models Only) ............. 12-10
12.3 Out-of-cycle Alarms .................................................................... 12-11
12.3.1 Too Long To Close Door ....................................................... 12-11
12.3.2 Too Long To Open Door ....................................................... 12-12
12.3.3 Pressure In Chamber ........................................................... 12-12
12.3.4 Waste Temperature Probe Failure ........................................ 12-13
12.3.5 Display Error ........................................................................ 12-14
12.3.6 Atmospheric Pressure Alarm ............................................... 12-14
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Table of Contents Operating Instructions 129373-496
12.4 Sensor Alarms ............................................................................. 12-16
12.4.1 Water In Chamber ................................................................ 12-16
12.4.2 Too Long In Jacket Charge .................................................. 12-16
12.4.3 Too Long To Seal Door .......................................................... 12-17
12.4.4 Too Long To Unseal Door ..................................................... 12-18
12.4.5 Chamber Pressure Transducer Failure ................................ 12-18
12.4.6 Chamber Temperature Probe Failure ................................... 12-19
12.4.7 Jacket Temperature Probe Failure ....................................... 12-20
12.4.8 Door Switch Failure .............................................................. 12-20
12.4.9 Exhaust Rate Too Fast .......................................................... 12-21
13 Service Procedures ...................................................................13-1
13.1 General .......................................................................................... 13-1
13.2 Air Filter Replacement ................................................................... 13-1
13.3 Clean Strainers .............................................................................. 13-1
13.4 Steam Trap Replacement .............................................................. 13-2
13.5 Clean or Replace Piping Check Valves ........................................ 13-2
13.6 Rebuild Solenoid Valves ............................................................... 13-2
13.7 Safety Valve Test ........................................................................... 13-3
13.8 Recommended Spare Parts .......................................................... 13-2
13.9 Waste Products Disposal .............................................................. 13-6
Appendix A: Screen ReferenceTable ............................................. A-1
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1-1
Listing of Warnings and Cautions Operating Instructions 129373-496
The following is a listing of the safety precautions which must be observed when operating this equipment. WARNINGS
indicate the potential for danger to personnel, and CAUTIONS indicate the potential for damage to equipment. These
precautions are repeated (in whole or in part), where applicable, throughout the manual. Carefully read all safety
precautions before using the equipment.
WARNING – ELECTRIC SHOCK AND BURN HAZARD:
Disconnect all utilities to sterilizer before servicing. Do not service the sterilizer unless all utilities have been
properly locked out. Always follow OSHA Lockout-Tagout and electrical safety-related work practice standards.
(See CFR 1910.147 and .331 through .335.)
WARNING – PERSONAL INJURY HAZARD:
Avoidpersonalinjuryfromburstingbottles.Liquidsterilizationcyclemustonlybeusedforliquidsinborosilicate
(Pyrex) flasks with vented closures.
WARNING:
It is inappropriate for a healthcare facility to sterilize liquids for direct patient contact.
WARNING – BURN HAZARD:
Whensterilizingliquids,topreventpersonalinjuryorpropertydamageresultingfromburstingbottlesandhotfluid,
you must observe the following procedures:
•Use Liquid cycle only; no other cycle is safe for processing liquids.
•Use only vented closures; do not use screw caps or rubber stoppers with crimped seal.
•Use only Type I borosilicate glass bottles; do not use ordinary glass bottles or any container not designed for
sterilization.
•Do not allow hot bottles to be jolted; this can cause hot-bottle explosions. Do not move bottles if any boiling or
bubbling is present.
Sterilizer,rack/shelves,andloadingcarwillbehotaftercycleisrun.Alwayswearprotectiveglovesandapron
whenremovingaprocessedload.Protectiveglovesandapronmustbewornwhenreloadingsterilizerfollowingthe
previous operation.
Do not attempt to open the sterilizer door if a WATER IN CHAMBER ALARM condition exists. Call a qualified
service technician before attempting to use sterilizer further.
Aftermanualexhaust,steammayremaininsidethechamber.Alwayswearprotectivegloves,apronandaface
shield when following emergency procedure to unload sterilizer. Stay as far back from the chamber opening as
possible when opening the door.
Allow sterilizer to cool to room temperature before performing any cleaning or maintenance procedures.
Failure to shut off the steam supply when cleaning or replacing strainers can result in serious injury.
Jacket pressure must be 0 psig before beginning work on the steam trap.
LISTING OF WARNINGS AND CAUTIONS
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129373-496 Operating Instructions Listing of Warnings and Cautions
Propertestingofthe safety valverequiresthevalve tobeoperatedunder pressure. Exhaustfromthesafety
valveis hotandcancauseburns. Proper safetyattire(gloves,eyeprotection, insulatedoverall)as designatedby
OSHA is required. Testing is to be performed by qualified service personnel only.
WARNING – EXPLOSION HAZARD:
This sterilizer is not designed to process flammable compounds.
WARNING – SLIPPING HAZARD:
Topreventfalls,keepfloorsdrybyimmediatelywipingupanyspilledliquidsorcondensationinsterilizerloading
or unloading area.
WARNING – PERSONAL INJURY AND/OR EQUIPMENT DAMAGE HAZARD:
Regularly scheduled preventive maintenance is required for safe and reliable operation of this equipment.
Contact your STERIS Service Representative to schedule preventive maintenance.
When closing the chamber door, keephands and arms out ofthe door opening and make sure opening is clear
of obstructions.
Repairsandadjustmentstothisequipmentmustbemadeonlybyfullyqualifiedservicepersonnel. Maintenance
performedbyinexperienced,unqualifiedpersonsorinstallationof unauthorized parts could cause personal injury
or result in costly equipment damage.
WARNING – STERILITY ASSURANCE HAZARD:
Loadsterility maybecompromised ifthebiologicalindicator orairleaktest indicatesapotential problem.
If these indicators show a potential problem, refer the situation to a qualified service technician before using the
sterilizer further.
AccordingtoAAMIstandards,ameasuredleakrategreaterthan1mmHg/minute(1.3 mbar/min)indicates
aproblemwiththesterilizer.Referthesituationtoaqualifiedservicetechnicianbeforeusingthesterilizerfurther.