Midmark M9-M11 Service manual

M9 / M9D

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M11 / M11D

-001 thru -019

Self-Contained Steam Sterilizer

Serial Number Prefixes:

M9 [CZ, DA, DB, DX, DY, FK, LA, FL, OM] M9D [FF, FG] M 11 [ES, ET, FP, FR, GB. NP] M11D [GC, GD]

NO LONGER IN

Some service parts may not

ODUCTION

be available for this product!

M9/D

M11/D

-001 thru -019

FOR USE BY MIDMARK TRAINED TECHNICIANS ONLY

SF-1827 Part No. 004-0372-00 Rev. F (1/01/08)

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TABLE OF CONTENTS

Section/Paragraph Page

IMPORTANT INSTRUCTIONS

General Safety Instructions......................................... iii

Safety Alert Symbols .................................................. iii

Warranty Instructions .................................................. iii

SECTION I GENERAL INFORMATION

1.1 Model / Serial Number Location................... 1-1

1.2 Specifications .............................................. 1-1

1.3 Description of Normal Operation.................. 1-2

1.4 Ordering Parts............................................. 1-3

1.5 Special Tools .............................................. 1-4

SECTION II TESTING AND TROUBLESHOOTING

2.1 Operational Test.......................................... 2-1

2.2 Troubleshooting Procedures ........................ 2-1

SECTION III SCHEDULED MAINTENANCE

3.1 Scheduled Maintenance .............................. 3-1

SECTION IV MAINTENANCE/SERVICE INSTRUCTIONS

4.1 Safety Precautions...................................... 4-1

4.2 Top Cover Removal / Installation ................ 4-1

4.3 Right Hand Side Panel Removal /

Installation .............................................. 4-1

4.4 Left Hand Side Panel Removal /

Installation .............................................. 4-2

4.5 Back Panel Removal/Installation................. 4-3

4.6 Base Inspection Cover Removal /

Installation .............................................. 4-3

4.7 Bellows Assembly Removal / Installation.... 4-4

4.8 Condensing Tank Water Level Sensor

Removal / Installation ............................. 4-5

4.9 Temperature Sensor Assembly

Removal / Installation ............................. 4-6

4.1 0 Pressure Vessel Water Level Sensor

Removal / Installation ............................. 4-6

4.1 1 Vent Solenoid Removal / Installation........... 4-7

4.1 2 Fill Solenoid Removal / Installation ............. 4-9

4.1 3 Control PC Board Removal / Installation ... 4-10

4.1 4 Door Switch Removal / Installation............ 4-13

4.1 5 Pulse Solenoid Removal / Installation ....... 4-13

4.1 6 Thermostat Removal / Installation ............. 4-14

4.1 7 Wire Tray Rack and Tray Plate

Removal / Installation ........................... 4-15

Section/Paragraph Page

4.1 8 Heating Element and Gasket

Removal / Installation ........................... 4-15

4.1 9 Filter Removal / Installation....................... 4-16

4.2 0 Door Gaskets Removal / Installation ......... 4-17

4.2 1 Display PC Board Removal / Installation ... 4-17

4.2 2 Condensing Tank Assembly

Removal / Installation ........................... 4-18

4.2 3 Pressure Relief Valve Removal /

Installation ............................................. 4-19

4.2 4 Pressure / Temperature Potentiometers

Adjustments ......................................... 4-20

4.2 5 Display PC Board Lamp / Display /

Button Check........................................ 4-23

4.2 6 Pressure Relief Valve Check..................... 4-24

4.2 7 Dry Cycle Dip Switches Adjustment........... 4-25

4.2 8 M9 / M11 Door Opening Test ..................... 4-26

SECTION V SCHEMATICS AND DIAGRAMS

5.1 Wiring Diagrams.......................................... 5-1

5.2 Flow Diagram ............................................ 5-11

5.3 Pressure / Temperature Chart .................... 5-12

SECTION VI PARTS LIST

6.1 Description of Bullets ................................... 6- 1

6.2 Torque Specifications and Important

Assembly Notes ...................................... 6-1

NOTE:

The Parts List in this manual is divided into two sections [M9 / M9D & M11/M11D]. Verify model and refer to appropriate section.

M9 / M9D Parts List

M9 Component / Page Cross-Reference ..... 6-2

M9D Component / Page Cross-Reference .... 6 -3

Main Enclosure Components...................... 6-4*

Plumbing and Sensor Components ............ 6-5*

Pressure Vessel Components .................... 6-6*

M9 Manifold Components........................... 6-7*

M9D Manifold Components ........................ 6-8*

Electrical Components ............................... 6-9*

M9 Control PC Board ............................... 6-10*

M9D Control PC Board ............................... 6-11

M9 Labels and Decals............................... 6-12

M9D Labels and Decals ............................ 6-13

Printer Components .................................. 6-14

Racks, Trays, and Cleaner....................... 6-15*

Packaging ................................................. 6-16

(*) Indicates that there has been a serial number break for the illustration

and that there are additional point page(s) following the original page.

TABLE OF CONTENTS

Section/Paragraph Page

SECTION VI PARTS LIST - continued

NOTE:

The Parts List in this manual is divided

into two sections [M9 / M9D & M11/M11D]. Verify model and refer to appropriate section

M11 / M11D Parts List

M11 Component / Page

Cross-Reference ................................... 6-17

M11D Component / Page

Cross-Reference .................................... 6-18

Main Enclosure Components.................... 6-19*

Plumbing and Sensor Components .......... 6-20*

Pressure Vessel Components .................. 6-21*

M11 Manifold Components....................... 6-22*

M11D Manifold Components .................... 6-23*

Electrical Components ............................. 6-24*

M11 Control PC Board ............................. 6-25*

M11D Control PC Board ............................. 6-26

M11 Labels and Decals............................. 6-27

M11D Labels and Decals .......................... 6-28

Printer Components .................................. 6-29

Racks, Trays, and Cleaner....................... 6-30*

Packaging ................................................. 6-31

COMMENTS ............................................................ 7-1

FAX ORDERING FORM .......................................... 7-2

IMPORTANT INSTRUCTIONS

Return To Table Of Contents

General Safety Instructions

Safety First: The primary concern of Midmark Corporation is that this sterilizer is maintained with the

safety of the patient and staff in mind. To assure that services and repairs are completed safely and correctly, proceed as follows:

(1 ) Read this entire manual before performing any

services or repairs on this sterilizer.

(2 ) Be sure you understand the instructions con-

tained in this manual before attempting to service or repair this sterilizer.

Safety Alert Symbols

Throughout this manual are safety alert symbols that call attention to particular procedures. These items are used as follows:

DANGER

A DANGER is used for an imminently

hazardous operating procedure, practice, or condition which, if not correctly followed, will result in loss of life or serious personal injury.

NOTE

A NOTE is used to amplify an operating procedure, practice or condition.

Warranty Instructions

Refer to the Midmark “Limited Warranty” printed in the Installation and Operation Manual for warranty information. Failure to follow the guidelines listed below will void the warranty and/or render the M9 sterilizer unsafe for operation.

• In the event of a malfunction, do not attempt to operate the sterilizer until necessary repairs have been made.

• Do not attempt to disassemble sterilizer, replace malfunctioning or damaged components, or perform adjustments unless you are one of Midmark’s authorized service technicians.

• Do not substitute parts of another manufacturer when replacing inoperative or damaged components. Use only Midmark replacement parts.

WARNING

A WARNING is used for a potentially

hazardous operating procedure, practice, or condition which, if not correctly followed, could result in loss of life or serious personal injury.

CAUTION

A CAUTION is used for a potentially

hazardous operating procedure, practice, or condition which, if not correctly followed, could result in minor or moderate injury. It may also be used to alert against unsafe practices.

EQUIPMENT ALERT

An EQUIPMENT ALERT is used for an

imminently or potentially hazardous operating procedure, practice, or condition which, if not correctly followed, will or could result in serious, moderate, or minor damage to unit.

Return To Table Of Contents

GENERAL INFORMATION

Return To Table Of Contents

1.1 Model / Serial Number Location

MODEL NUMBER

SERIAL NUMBER

SECTION I

GENERAL INFORMATION

SECTION I

MA2071-01

Figure 1-1. Model / Serial Number Location

1.2 Specifications

Table 1-1. Specifications

Description Data M9 / M9D Dimensions:

Front Height (A, Figure 1-2).............. 16.4 in (41.8 cm)

(printer adds approx. 0.5 in)

Width (B).............................................. 15 in (38.1 cm)

Depth (C) .......................................... 18.1 in (47.8 cm)

Back Height (D) ...............................13.75 in (34.9 cm)

Chamber Diameter .................................9 in. (22.8 cm)

Chamber Depth ....................................15 in. (38.1 cm)

Shipping Carton ....................... 22 in x 17.75 in x 18 in

(56 cm x 45 cm x 46 cm)

Figure 1-2. Dimensions

Description Data M11 / M11D Dimensions:

Front Height (A, Figure 1-2).............. 17.7 in (44.9 cm)

(printer adds approx. 0.5 in)

Width (B)........................................... 17.6 in (44.8 cm)

Depth (C) .......................................... 22.4 in (56.8 cm)

Back Height (D) ...............................15.25 in (38.7 cm)

Chamber Diameter ...............................11 in. (27.9 cm)

Chamber Depth ....................................18 in. (45.7 cm)

Shipping Carton ...................... 23 in x 27.5 in x 21.5 in

(58.4 cm x 69.8 cm x 54.6 cm)

Weight:

Reservoir Empty ...................................... 70 lb (32 kg)

Reservoir Full........................................... 77 lb (35 kg)

With Shipping Carton ............................... 78 lb (36 kg)

Water Reservoir Capacity ................ Approx. 7/8 gallon

(3.31 Liters to full mark)

Weight:

Reservoir Empty ................................... 96 lb (43.5 kg)

Reservoir Full......................................... 106 lb (48 kg)

With Shipping Carton ............................. 128 lb (58 kg)

Water Reservoir Capacity ............... Approx. 1.25 gallon

(4.7 Liters) to full mark

SECTION I

Return To Table Of Contents

GENERAL INFORMATION

NOTE

The following information applies to all models of the M9 / M9D / M11 / M11D included in this manual.

Table 1-1. Specifications - continued

Description Data

M9 / M9D / M11 / M11D

Electrical Requirements:

100 VAC Unit...............................100 VAC 50 - 60 HZ,

15 amp, single phase

115 VAC Unit......................110 - 120 VAC 50 - 60 HZ,

15 amp, single phase

230 VAC Unit......................220 - 240 VAC 50 - 60 HZ,

7 amp, single phase

Power Consumption:

100 VAC Unit ......................................... 1425 WATTS,

15 amps @ 100 VAC

115 VAC Unit ......................................... 1425 WATTS,

12 amps @ 120 VAC

230 VAC Unit ......................................... 1500 WATTS,

7 amps @ 240 VAC

Recommended Circuit:

A separate (dedicated) circuit is recommended for this sterilizer. The sterilizer should not be connected to an electrical circuit with other appliances or equipment unless the circuit is rated for the additional load.

Chamber Pressure:

Operating ........................... 27 - 31 psi (186 - 215 kPa)

Minimum Before Door Is Released

(M9 & M11 only) ................................ 0.7 psi (5 kPa)

Maximum Before Safety Valve

Opens (older units). .......................... 35 psi (241 kPa)

Maximum Before Safety Valve

Opens (newer units). ....................... 40 psi (275.7 kPa)

Chamber Temperature (Operating):

Unwrapped Cycle ................... 272-273 °F (133-134 °C)

Pouches Cycle ...................... 272-273 °F (133-134 °C)

Liquids Cycle ......................... 252-253 °F (122-123 °C)

Packs Cycle .......................... 252-253 °F (122-123 °C)

Maximum Before Thermostat

Energ izes ........................................... 295 °F (146 °C)

1.3 Description of Normal Operation

(Figure 1-3 shows Display Panel Buttons & Lamps) (Figure 1-4 shows location of Major Components)

Plug Power Cord Into Outlet

Display: E001 (Error lamp flashes)

1. Line voltage (100/115/230V) is supplied to Control PC Board.

NOTE

There are two primary fuses on PC Board. Faulty fuse(s) will disable all functions of sterilizer.

Press ON/STANDBY Button

Display: (Error lamp goes out; ON/STANDBY lamp

illuminates, & program lamps flash)

Select Cycle (Unwrapped, Pouches, Liquids, Packs) Display: TIME/TEMP. (for the selected cycle)

Press START Button

NOTE

After the START button is pressed, the PC board continuously monitors the Door Switch for continuity. If continuity is not detected, the PC board stops the cycle, and the Door Ajar lamp illuminates.

1. The Fill Cycle is initiated.

Fill Cycle

Display: (Filling lamp illuminates)

1. Line voltage from PC Board energizes Fill Solenoid; this allows water to flow into Pressure Vessel.

2. Water fills Pressure Vessel until it makes contact with the Pressure Vessel Water Level Sensor.

3. When water completes the ground circuit between the Pressure Vessel Water Level Sensor & the chassis, the PC Board de-engergizes the Fill Solenoid & the Steriliation Cycle is initiated.

Sterilization Cycle

Display: (Sterilizing lamp illuminates)

xxx° (chamber temperature) xx PSI [after temperature reaches 208°F (98°C)]

NOTE

During the Sterilization Cycle, the Temperature Probe monitors the chamber temperature and the PC Board monitors chamber pressure.

TEMP / TIME DISPLAY

Return To Table Of Contents

TEMP (°F) \ TIME (MIN : SECONDS)

FILLING

STERILIZING

LAMP

DRYING

COMPLETE

SECTION I

GENERAL INFORMATION

LAMP

WATER LOW

DOOR AJAR

ERROR

PRESSURE (PSI)

UNWRAPPED

POUCHES

PRESSURE DISPLAY

UNWRAPPED BUTTON

POUCHES BUTTON

LIQUIDS BUTTON

Figure 1-3. Display Panel Button / Lamp Locations

Sterilization Cycle - continued

1. Line voltage from PC Board energizes Heating Element.

2. Air & steam flow thru Bellows as water in chamber begins to boil. When temperature reaches approx. 215° F (101° C), the Bellows closes and pressure begins to build.

3. When chamber reaches required temperature, Heating Element is de-energized and sterlization time begins to count down on Display PC Board.

4. Line voltage from PC Board energizes Heating

Element intermittantly to maintain required

temperature & pressure until time elapses.

5. When sterilization time expires, the Heating Element

de-energized & the Vent Cycle is initiated.

Vent Cycle

1. Line voltage from PC Board energizes Vent Solenoid.

[Liquids Cycle requires chamber to cool to 223° F (106° C) before Vent Solenoid is energized]

2. Chamber pressure is released thru Vent Solenoid

until pressure drops to 0.7 psi (4.8 kPa).

LIQUIDS

PACKS BUTTON

PACKS

START

STOP

ON/STANDBY

ON / STANDBY

BUTTON START BUTTON

STOP BUTTON

MA207702

3. Control PC Board sounds 5 beeps.

M9 / M11: Line voltage from PC Board energizes

Pulse Solenoid. Door opens automatically. Drying Cycle is initiated.

M9D / M11D: "Open the Door" Lamp illuminates.

"dddd" appears on Display PC Board. Manually open door at this time. Drying Cycle is initiated.

Drying Cycle

Display: (Drying lamp illuminates)

xx:xx (time counts down from 30 minutes) (Complete lamp illuminates at end of cycle)

1. Line voltage energizes Heating Element for 45 seconds. (30 minute countdown begins on Display PC Board).

2. Heating Element is energized intermittantly (as shown below) until Dry Cycle is complete.

45 seconds ON - 2 minutes OFF 30 seconds ON - 2 minutes OFF xx* seconds ON - 2 minutes OFF (until cycle ends)

*This time is adjustable. Refer to adjustment

procedure in Section IV if necessary.

SECTION I

Return To Table Of Contents

GENERAL INFORMATION

DISPLAY PC

BOARD

PRESSURE

VESSEL

DOOR

SWITCH

HEATING ELEMENT

PRESSURE RELIEF VALUE

BELLOWS ASSEMBLY

CONDENSING TANK ASSEMBLY

PULSE

SOLENOID

(M9 / M11only)

CONTROL PC

BOARD

THERMOSTAT

FILL

SOLENOID

Figure 1-4. Major Components

1.4 Ordering Parts

Contact Midmark's Technical Service Department with all necessary information (model / serial number, part number, etc.).

Orders can be placed using the Fax Order Form ( page 7-2) or by calling the phone number on the back cover of this manual.

Table 1-2. Special Tool List

CONDENSING TANK WATER LEVEL SENSOR (early M9 only)

TEMPERATURE SENSOR ASSEMBL Y

PRESSURE VESSEL WATER LEVEL SENSOR

VENT SOLENOID

MA207604

1.5 Special Tools

Special tools needed to repair the sterilizer are listed below in Table 1-2.

Description of Special Tool

Digital Multimeter (must be capable of displaying 3 digits)

Water Level Sensor Wrench Midmark Corp.

3/32 in. Diameter Punch Commercially Available Any Type Used to remove / install two roll pins which secure

Pressure Gauge Test Harness Midmark Corp.

Manufacturer’s

Name / Address / Phone

Commercially Available Any Type Used to check probes, switches, and connections

60 Vista Drive Versailles, Ohio 45380 (513) 526-3662

Manufacturer’s

Part Number

for proper function by performing continuity checks.

050-2324-00 Used to hold fitting in place so the nut that holds

water level sensor can be loosened / tightened.

door switch in place or roll pin which secures latch lever to pulse solenoid.

002-0372-00 Used to check the pressure in the pressure vessel

during a cycle to diagnose malfunctions and / or adjust the pressure range potentiometer to a correct setting.

Purpose of Special Tool

TESTING AND TROUBLESHOOTING

Return To Table Of Contents

SECTION II

TESTING AND TROUBLESHOOTING

SECTION II

2.1 Operational Test

To effectively diagnose a malfunction of the sterilizer, perform the Pressure / Temperature Potentiometers Adjustment procedure. Refer to para 4.24.

Table 2-1. Troubleshooting Guide

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If a malfunction is detected, locate the Problem & Symptom in Table 2-1. Perform the Check for each Probable Cause indicated. Follow instructions in the Correction column as they apply.

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SECTION II

Return To Table Of Contents

TESTING AND TROUBLESHOOTING

Table 2-1. Troubleshooting Guide -

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SECTION II

Return To Table Of Contents

TESTING AND TROUBLESHOOTING

Table 2-1. Troubleshooting Guide -

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.82.4arap

tekcarbhctaldnasniprooD

.ylreporpgninoitcnufton

retemoitnetoperusserporeZ

yrDgniruddesolcsawrooD

.rood

orezfonoitarbilackcehC

.retemoitnetoperusserp

.42.4arap

rooD11M/9MmrofreP

otrefeR.tseTgninepO

roodnosrrubrofkcehC

nitekcarbhctaldnasnip

.esaerg

orezfonoitarbilackcehC

.retemoitnetoperusserp

.42.4arap

erusserporeztsujdA

otrefeR.retemoitnetop

rosirbedynaevomeR

&revelhctalmorfpudliub

.msinahcemdioneloseslup

naelcneht;srrubevomeR

desabmuihtilhtiwebuldna

erusserporeztsujdA

otrefeR.retemoitnetop

tuhsottonrotarepomrofnI

.elcycyrDgnirudrood

SECTION II

Return To Table Of Contents

TESTING AND TROUBLESHOOTING

Table 2-1. Troubleshooting Guide -

melborPmotpmySesuaCelbaborPkcehCnoitcerroC

01edocrorrE

teserremitgodhctaW(

)rorre

11edocrorrE

21edocrorrE

)rorretsetmaR(

31edocrorrE

D11M&D9M-ylno

sutatshctiwsrooD(

tsalecnisdegnahcnu

)elcyc

.elcyc

)rorretpurretnierawtfoS(

.elcyc

sesuFnwolB

sthgiLyalpsiDoN

.sthgilsutatsDEL

thgiLretaWwoL

(

retfanosemoc

).nim5.xorppa

.rebmahc

etelpmoctonseodreziliretS

.noitcnuflam

etelpmoctonseodreziliretS

.noitcnuflam

etelpmoctonseodreziliretS

nwolbdraobCPnoesufniaM.dioneloseslupnitrohSneht;dioneloseslupgulpnU

&.pmetsyalpsidtinU

wohstonseodtub,erusserp

sllifylsuounitnocretaW

sahdraobCPlortnoC

/erawtfosadah

.eruliaferawdrah

asahdraobCPlortnoC

erawdrah/erawtfos

asahdraobCPlortnoC

erawdrah/erawtfos

sihctiwsrooD

.gninoitcnuflam

ytridrosneslevelretaW

.gninoitcnuflamro

continued

.elcyclanoitidda

.hctiwsrood

.kcehc

neht;rewoptcennocsID

detcennocsidrofkcehc

.ytilicafroreziliretsnigniriw

nur&rewoptcennoC

rofrewoptcennocsiD

neht;sdnoces01.xorppa

nur&rewoptcennoc

rofrewoptcennocsiD

neht;sdnoces01.xorppa

nur&rewoptcennoc

nokcehcytiunitnocmrofreP

gninepOrooD11M/9Mnur

.82.4arapotrefeR.tseT

;rosneslevelretawnaelC

ytiunitnocmrofrepneht

.31.4arap

.41.4arap

.51.4arapot

.noitarepo

.01.4arapotrefeR

ecalper,stsisrepedocrorrefI

otrefeR.draobCPlortnoc

ecalper,stsisrepedocrorrefI

otrefeR.draobCPlortnoc

ecalper,stsisrepedocrorrefI

otrefeR.draobCPlortnoc

otrefeR.hctiwsroodecalpeR

refeR.dioneloseslupecalpeR

.xorpparofrewoptcennocsiD

tcennocnehT.sdnoces03

reporprofkcehcdnarewop

.rosneslevelretawecalpeR

rosneserutarepmeT

.gninoitcnuflam

.rebmahc

thgiLretaWwoL

(

nosemoc

)yletaidemmi

)ylnostinuelyts-redlO(

gniretnetonsiretaW

.dionelos

sasetanimullithgilretawwoL

.detratssielcycsanoos

.deggolc/ytridsiretliFnaelcdeepshtiwretlifnaelC

llifnideppartsirbeD

levelknatgnisnednoC

.gninoitcnuflamrosnes

.renaelc

-draobCPmorfrosnesgulpnU

rosnes.pmettcennocsiD

kcehcneht;draobCPmorf

.noitareporeporprof

cinosartlunirohsurb&

dionelosllifelbmessasiD

.sirbedynaevomerdna

.9.4arapotrefeR

.91.4arapotrefeR

.21.4arap

.rosneserutarepmetecalpeR

.yrassecenfiretlifecalpeR

otrefeR.dionelosllifecalpeR

repmujyletnanamrep&

.draobnonoitcennoc

SECTION II

Return To Table Of Contents

TESTING AND TROUBLESHOOTING

Table 2-1. Troubleshooting Guide -

melborPmotpmySesuaCelbaborPkcehCnoitcerroC

onsahreziliretS

.rewop

elcyclliF

nehwesnopseroN

dehsupsiYBDNATS/NO

.)etanimullispmalon(

.elcycllifspikstinUtewrosneslevelretaW

.noitcnuflam

.ylwols

yrevsllifrebmahC

tonsireziliretS

.nideggulp

lortnocnonwolbesuF

.draobCP

.detavitcatatsomrehTottupnitaegatlovrofkcehC

.elcycsuoiverpmorf

.deggulpgnibut/retliFgnibutdnaretlifevomeR

retawlesseverusserP

rosneslevel

.ytridrogninoitcnuflam

continued

sidrocrewoptahtkcehC

dnareziliretsotnideggulp

.teltuo

.sesufdraobCPlortnoc

morfdraobCPlortnoc

.tatsomreht

-lesseverusserpwollA

.tcepsnidna

CPmorfrosnesgulpnU

.noitarepo

otdrocrewopnigulP

.teltuororezilirets

nokcehcytiunitnocmrofreP

noitcennocrepmuj&draob

reporprofkcehC.draobno

.sesufecalpeR

.loocotreziliretsroftiaW

,enonfI.egatlovkcehc-eR

refeR.tatsomrehtecalper

.61.4arapot

riaotrosneslevelretaw dnahdnaevomerroyrd .01.4arapotrefeR.yrd

retlifnaelc/ecalpeR

otrefeR.gnibutro/dna

.91.4arap

erusserpnaelc/ecalpeR

.rosneslevelretawlessev

.01.4arapotrefeR

.retaw

htiwsllifrevorebmahC

rosneslevel

dioneloslliF

.kcuts

.gnissimdraob

.gninoitcnuflam

dnarosneslevel

.draobCPlortnoc

rogninoitcnuflam

draobCPlortnoC

retawlesseverusserP

.ytridrogninoitcnuflam

ytridro,nekorb,esooL

neewtebnoitcennoc

retawlesseverusserp

.leveltonsireziliretSlevelrofreziliretskcehC

CPnowercsdnuorG

rosneserutarepmeT

CPmorfrosnesgulpnU

noitcennocrepmuj&draob

.noitarepo

.rosnes

.noitallatsni

.wercs

.dionelos

llakcehC sesuaCelbaborP

.evobadetsil

reporprofkcehC.draobno

kcehcytiunitnocmrofreP

dnarotcennocneewteb

levelretawlesseverusserp

dnuorgdraobCPkcehC

rosneserutarepmetgulpnU

kcehcnehtdraobCPmorf

.noitareporeporprof

foecnatsiserkcehC

.5noitceSotrefeR

.21.4

erusserpnaelc/ecalpeR

.rosneslevelretawlessev

.01.4arapotrefeR

nekorbnaelc/ecalpeR

.snoitcennocroseriw

anoreziliretsllatsni-eR

thgiehtsujda,ecafruslevel

,sreleveltooflaudividnifo

.reziliretspumihsro

.wercsdnuorgecalpeR

erutarepmetecalpeR

.9.4arapotrefeR.rosnes

llifnaelc/ecalpeR

arapotrefeR.dionelos

.draobCPlortnocecalpeR

.31.4arapotrefeR

SECTION II

Return To Table Of Contents

TESTING AND TROUBLESHOOTING

-ylno11M/9M

Table 2-1. Troubleshooting Guide -

melborPmotpmySesuaCelbaborPkcehCnoitcerroC

tonseodrooD

tnevretfanepo

.elcyc

tonseodrebmahC

.ylreporptnev

dionelosesluP

seodroodtub,sezigrene

.nepoton

aretfasneporooD

lamronnahtregnol

.doirepgnitnev

11M/9M-

.gnidnibrevelhctaLybrevelhctaletarepO

.gnidnibhctalrooDybhctalroodetarepO

nidehsuptonkcaryarT

otniyawehtlla

gnisuac,rebmahc

.roodhtiwecnerefretni

orezerusserP

fotuoretemoitnetop

.noitarbilac

tnevro,retlif,niarD

.deggulpgnibut

continued

rofkcehcotdnah

.ecnatsiser

rofkcehcotdnah

.ecnatsiser

htiwerefretnitonseod

.rood

-orezerusserptsujdA

.tcepsnidna

.revelhctaletacirbul/naelC

.hctalroodetacirbul/naelC

sikcaryartfieesotkcehC

sitahtosylreporpdellatsni

.rood

.42.4arap

gnibutdnaretlifevomeR

osylreporpkcaryartllatsnI

htiwerefretnitonseodtitaht

otrefeR.retemoitnetop

hsulfdna,niard,naelC

.retlifnaelc/ecalpeR.gnibut

.91.4arapotrefeR

pmalROODEHTNEPO

regnolretfasetanimulli

.doirep

seoderutarepmeT

evobaogton

gnitnevlamronnaht

D11M/D9M-

dionelostneV

.kcuts

etelpmoctonlliwtinU

.elcycnoitazilirets

rogninoitcnuflam

.5noitceS

.kaelerusserpwolS.skaelerusserprofkcehC

foecnatsiserkcehC

otrefeR.liocdionelos

.11.4

.2-2elbaTotrefeR

tnevnaelc/ecalpeR

arapotrefeR.dionelos

gninoitcnuflamecalpeR

.kaelerusserptatnenopmoc

.)C°101(F°512

tonstnemurtsnI

.gniyrd

retfatewerastnemurtsnI

.etelpmocsielcycgniyrd

.elcyc

tagninepotonsirooD

fonoitroptnevfodne

.leveltonsireziliretSlevelrofreziliretskcehC

.deggulpsiretliFtfelsiretawontahtkcehC

eeS melborP :

.noitallatsni

seodrooD

elcyctnevretfanepoton

anoreziliretsllatsni-eR

thgiehtsujda,ecafruslevel

.reziliretspumihs

retfalesseverusserpni

.elcycfonoitropgnitnev

.91.4arapot

ro,sreleveltooflaudividnifo

refeR.retlifnaelc/ecalpeR

SECTION II

Return To Table Of Contents

TESTING AND TROUBLESHOOTING

Table 2-1. Troubleshooting Guide -

melborPmotpmySesuaCelbaborPkcehCnoitcerroC

ROODEHTNEPO

tonseodpmal

.etanimulli

pmalROODEHTNEPO

ehttaetanimullitonseod

.elcycnoitazilretsfodne

tnemtsujdafotuo

retemoitnetoperusserP

continued

lliwkcehcdraobCPyalpsiD

.gnitteserusserporezwohs

.52.4arapotrefeR

ylnoD11M/D9M-

"100C"edoC

D11M&D9M-ylno

)rorreretawwoL(

.retaw

"200C"edoC

D11M&D9M-ylno

)rajarooD(

.nurtonlliwelcyCnilevelretaW

.wol

.nurtonlliwelcyC

.llufsiknatgnisnednoC

htiwsllifrevorebmahC

.nurtonlliwelcyC.rajarooD-.roodesolC

dioneloslliF

.kcuts

ootsiknatgnisnednoc

rogninoitcnuflam

rosneslevelretaW

.gninoitcnuflamroytrid

.kcehc

rosneserutarepmeT

.gninoitcnuflam

nilevelretawkcehC

.knatgnisnednoc

foecnatsiserkcehC

.5noitceSotrefeR.dionelos

;rosneslevelretawnaelC

ytiunitnocmrofrepneht

erutarepmettcennocsiD

rofkcehcneht;rosnes

.noitareporeporp

erusserptsujdA

arapotrefer.retemoitnetop

.42.4

htiwknatgnisnednoclliF

.retawdellitsid

refeR.dionelosllifecalpeR

.21.4arapot

levelretawecalpeR

.01.4arapotrefeR.rosnes

erutarepmetecalpeR

.9.4arapotrefeR.rosnes

D11M&D9M-ylno

"300C"edoC

)rorreelcycyrD(

.tratstondidelcycyrDdenepotonsawrooD

retfasetunim03nihtiw

.gnitnev

-roodnepO.elcycnureR retfasetunim03nihtiw

.gnitnev

SECTION II

Return To Table Of Contents

TESTING AND TROUBLESHOOTING

2.3 Areas To Check For Pressure Leaks

(Figure 2-1)

swolleB )4(

Table 2-2. Areas To Check For Pressure Leaks

tnenopmoCkcehCnoitcerroC

teksaGrooD

dioneloSlliF 3(

)1-2erugiF,1(

dioneloStneV )2(

)a1(eeS

.)a2(eeS

)

.)a3(eeS

.)a4(eeS

evlaVfeileRerusserP )5(

.evlavfeilererusserp

esoHrosneSerusserP )6(

.)a5(eeS

.)a6(eeS

.rooddnuoragnikaelretawrofkcehC

.liocgnisnednocurhtgnikaelretawrofkcehC

,enilllifurhtriovreserotnikcabgnikaelretawrofkcehC

.levelretawriovresergnisiar

nienilswollebmorfmaetsevissecxerofkcehC

.nommocnutonsimaetsfossihthgila:ETON.riovreser

.reziliretsfokcabhtaenebgnikaelretawrofkcehC

gniecalpererofeberusserplautcakcehc:ETON

.draobCPniamotnokaelmaetsrofkcehC

MA542300

.02.4arapotrefeR.teksagroodecalpeR

.11.4arapotrefeR.dionelostnevecalpeR

.21.4arapotrefeR.dionelosllifecalpeR

.7.4arapotrefeR.swollebecalpeR

.32.4arapotrefeR.evlavfeilererusserpecalpeR

.eitelbachtiwdraobCPotesohrosneserusserperuceS

SECTION III

Return To Table Of Contents

SCHEDULED MAINTENANCE

3.1 Scheduled Maintenance

Table 3-1 lists inspections and services that should be performed periodically on the sterilizer.

Table 3-1. Scheduled Maintenance Chart

lavretnIecivreSronoitcepsnI oDottahW

SECTION III

SCHEDULED MAINTENANCE

yllaunna-imeSegamadsuoivbO ,stnenopmocniskcarc:sahcusegamadsuoivborofreziliretsfonoitidnockcehcyllausiV

erawdrah/srenetsaF dnaerawdrahgnissimynaecalpeR.erawdrah/srenetsafesoolrognissimrofreziliretskcehC

strapgnivoM .esaergerutarepmethgihhtiwdetacirbulebdluohsstrapgnivomllA

dnagninraW

slacedlanoitcurtsni

yalrevoyalpsiD .yrassecenfiyalrevoyalpsidecalpeR.yalrevoyalpsidelbigelliro,degamad,gnissimrofkcehC

snoitcennocgniriW esoolynanethgiT.snoitcennocytridllanaelC.snoitcennocgniriwllafoytirgetniehtkcehC

roodfotnemevomeerF

hctal

roodfotnemevomeerF

gnirpshctiws

revelhctaL

)ylno11M/9M(

steksagmaDdnarooD .steksagnisdiovro,steksagfonoitaroireted,steksagnotridrofkcehcdnasteksagevomeR

retliF arapotrefeR.yrassecenfiretlifecalpeR.noitulosretawdnapaosdlimagnisuretlifnaelC

dluowhcihwegamadelbisivrehtoynaro,skael,stnenopmocnistned,stnenopmocgnissim

.reziliretsehtfoecnamrofrepehtesimorpmocdluowroetarepootefasnuebotreziliretsesuac

.yrassecenfireziliretsriapeR

.yrassecenfi172etitcoLgnisuyrassecensaerawdrahesoolynanethgit

.yrassecensaslacedecalpeR.slacedelbigellirognissimrofkcehC

.snoitcennocdegamadynaecalpeR.snoitcennoc

.esaergerutarepmethgihhtiwsniprooddnahctalroodetacirbuL.hctalroodnaelC

ecalpeR.esaergerutarepmethgihhtiwgnirpshctiwsroodetacirbuL.gnirpshctiwsroodnaelC

.yrassecenfignirpshctiwsrood

htiwrevelhctaletacirbuL.revelhctalnaelC.ecnatsiserrofkcehcotdnahybrevelhctaletarepO

.esaergerutarepmethgih

otrefeR.yrassecenfisteksagecalpeR.noitulosretawdnapaosdlimagnisusteksagnaelC

.02.4arap

.91.4

rosneslevel

)ylnostinu

gnibuT fignibutecalpeR.gnibuthsulfdna,niard,naelC.pudliubroftcepsnidnagnibutevomeR

)tnempiuqe

retawlesseverusserP

retawknatgnisnednoC

ylrae(rosneslevel

draobCPyalpsiD yalpsidecalpeR.52.4arapotrefeR.kcehcnottub/yalpsid/pmaldraobCPyalpsidehtmrofreP

evlavfeilererusserP fievlavfeilererusserpecalpeR.62.4arapotrefeR.kcehcevlavfeilererusserpamrofreP

lanoitpo(retnirP

tsetlanoitarepO snoitacificepsstinihtiwgnitareposireziliretsehtfienimretedottsetlanoitareponamrofreP

.01.4arapotrefeR

.8.4arapotrefeR

.yrassecen

.yrassecenfidraobCP

.32.4arapotrefeR.yrassecen

.yrassecen

.42.4arapotrefeR.yrassecenfisretemoitnetop

.yrassecenfirosnesecalpeR.srosneslevelretawlesseverusserpmorfpu-dliubynaevomeR

.yrassecenfirosnesecalpeR.rosneslevelretawknatgnisnednocmorfpu-dliubynaevomeR

firetnirpecalpeR.yrassecenfiegdirtracnobbirecalpeR.ylreporpstnirpretnirptahtkcehC

draobCPlortnocehttsujdA.stnenopmocgninoitcnuflamynaecalpeR.)1.2arapotrefeR(

SECTION III

Return To Table Of Contents

SCHEDULED MAINTENANCE

MAINTENANCE / SERVICE

Return To Table Of Contents

SECTION IV

MAINTENANCE / SERVICE INSTRUCTIONS

SECTION IV

4.1 Safety Precautions WARNING

Always disconnect the power cord from the outlet before removing any of

the sterilizer covers/panels or making any repairs to prevent the possibility of electrical shock. Also, drain the sterilizer to prevent spills during repairs. Failure to comply with these instructions could result in serious personal injury or death.

4.2 Top Cover Removal / Installation

A. Removal

(1 ) Disconnect power cord from the outlet. (2 ) If the sterilizer contains a printer, remove printer

(Refer to Operation Manual). (3 ) Open sterilizer door. (4 ) Remove two screws (1, Figure 4-1) and steam

block (2) from top cover (3). (5 ) Remove four screws (4) and two screws (5)

from top cover (3).

(6 ) On units which apply, carefully break front of

top cover (3) loose from silicone sealant.

EQUIPMENT ALERT

Lift top cover carefully and slowly. Rib-

bon connector is still connected to display PC board and any excess pressure exerted on it could result in a damaged ribbon connector or display PC board.

(7 ) Lift rear of top cover (3) and disconnect ribbon

connector (6) from display PC board (7A) or control PC board (7B) (depending on whether ribbon connector (6) is part of display PC board or is a separate component).

(8 ) Remove top cover (3) from sterilizer.

B. Installation

(1 ) Coat mating surfaces of front panel lip and top

cover (3) with silicone sealant.

(2 ) Position top cover (3) over sterilizer, with rear of

top cover raised, and connect ribbon connector (6) to display PC board (7A) or control PC board (7B).

(3 ) Install top cover (3) on sterilizer and secure

using two screws (5) and four screws (4).

(4 ) Install steam block (2) on top cover (3) and

secure using two screws (1).

(5 ) Close sterilizer door. (6 ) If the sterilizer contains a printer, install printer

(Refer to Operation Manual).

4.3 Right Hand Side Panel Removal / Installation

A. Removal

Figure 4-1. Top Cover Removal / Installation

MA204802

(1 ) Disconnect power cord from the outlet. (2 ) Remove two screws (1, Figure 4-2) from top

cover (2).

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

(3 ) Remove left screw (1, Figure 4-3) from steam

block (2).

SLOT

TAB

(4 ) Remove two screws (3) from top cover (4). (5 ) Lift up the left hand corner of top cover (4), pull

outward and down on the top edge of the left hand side panel (5), and remove left hand side panel from sterilizer.

B. Installation

(1 ) Insert two tabs of left hand side panel (5) into

two slots of base (6).

(2 ) Lift up the left hand corner of top cover (4), raise

the top edge of left hand side panel (5) into

position, and secure using two screws (3). (3) Install left screw (1) on steam block (2). (4 ) Close sterilizer door.

3 4

MA2049-01

Figure 4-2. Right Hand Side Panel

Removal / Installation

(3 ) Pull outward and down on the top edge of the

right hand side panel (3) and remove right hand side panel from sterilizer.

B. Installation

(1 ) Insert two tabs of right hand side panel (3) into

two slots of base (4).

(2 ) Raise top edge of right hand side panel (3) into

position and secure using two screws (1).

4.4 Left Hand Side Panel Removal / Installation

A. Removal

(1 ) Disconnect power cord from the outlet. (2 ) Open sterilizer door.

SLOT

TAB

MA2050-01

Figure 4-3. Left Hand Side Panel

Removal / Installation

4.5 Back Panel Removal / Installation

Return To Table Of Contents

A. Removal

(1 ) Disconnect power cord from sterilizer. (2 ) Remove right hand side panel (Refer to

para 4.3).

(3 ) Remove left hand side panel (Refer to

para 4.4).

(4 ) Remove four screws (1, Figure 4-4) from back

panel (2).

(5 ) Partially remove back panel (2) by simulta-

neously pulling downward and outward on back panel.

SECTION IV

MAINTENANCE / SERVICE

EQUIPMENT ALERT

Ensure that wires are completely discon-

nected before attempting to remove back panel. Failure to do so could result in damage to sterilizer.

NOTE

Units prior to serial number CZ1110/OM1000 have a fuse holder attached to the back panel. On these sterilizers, tag and disconnect two wires from the receptacle and one wire from the fuse holder instead of performing step 6.

(6 ) On older units, tag and disconnect three wires

(3) from terminals of receptacle (4) and remove back panel (2) from sterilizer. On newer units, separate back panel (2) from unit as far as possible and lay it on its side.

B. Installation

NOTE

Units prior to serial number CZ1110/OM1000 have a fuse holder attached to the back panel. On these sterilizers, remove tags and connect two wires to the receptacle and one wire to the fuse holder instead of performing step 1.

FLAP

(1 ) On older units, remove tags and connect three

wires (3) to terminals of receptacle (4).

(2 ) Position flap of back panel (2) behind top cover

(5) and secure back panel in place using four

screws (1). (3 ) Install left hand side panel (Refer to para 4.4). (4 ) Install right hand side panel (Refer to para 4.3).

4.6 Base Inspection Cover Removal /

Installation

A. Removal

(1 ) Disconnect power cord from outlet.

MA2051-01

(2 ) Drain water from condensing tank.

Figure 4-4. Back Panel Removal / Installation

(3) Turn sterilizer onto its back.

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

(4 ) Remove two screws (1, Figure 4-5) and base

inspection cover (2) from base (3).

B. Installation

(1 ) Install base inspection cover (2) on base (3) and

secure using two screws (1). (2 ) Turn sterilizer upright. (3 ) Refill condensing tank with distilled water.

Figure 4-5. Base Inspection Cover

Removal / Installation

MA2052-01

Figure 4-6. Bellows Assembly

Removal / Installation

TUBE HOLE

MA2053-01

4.7 Bellows Assembly Removal /

B. Installation

Installation

(1 ) Connect tubes (1 and 5) to bellows assem-

NOTE

Figure 4-6 shows old-style bellows. The procedure for the new-style is the same.

A. Removal

(1 ) Remove back panel (Refer to para 4.5). (2 ) Disconnect tube (1, Figure 4-6) from tee (2). (3 ) Pull downward on bellows assembly (3) to

remove bellows assembly from condensing tank (4).

(4 ) Loosen and remove tubes (1 and 5) from

bellows assembly (3).

bly (3).

(2 ) Position bellows assembly (3) and insert tube

(5) into tube hole of condensing tank (4). (3 ) Connect tube (1) to tee (2). (4 ) Install back panel (Refer to para 4.5).

4.8 Condensing Tank Water Level Sensor

Return To Table Of Contents

Removal / Installation (Applies only to Units with old style Control PC Board with EPROM Version M or Before)

SECTION IV

MAINTENANCE / SERVICE

NOTE

Units with old style control PC board with EPROM version N or after or new style control PC board do not have a condensing tank water level sensor.

A. Removal

(1 ) Drain water from condensing tank. (2 ) Remove back panel (Refer to para 4.5). (3 ) Remove bellows assembly (Refer to para 4.7). (4 ) Disconnect wire (1, Figure 4-7) from termi- nal

(2).

(5 ) Using Water Level Sensor Wrench to hold fitting

(3), loosen nut (4) (Refer to Table 1-2 for special tool).

(6 ) Pull assembled level sensor rod (5) from

fitting (3).

(7 ) Remove nut (4), silicone tube (6), and crimp (7)

from level sensor rod (5). Discard silicone tube and crimp.

(8 ) Using vise grips to hold level sensor rod (5),

remove nut (8) and terminal (2) from level sensor rod.

B. Installation

(1 ) Using vise grips to hold level sensor rod (5),

install terminal (2) on level sensor rod and secure using nut (8).

MA2054-01

Figure 4-7. Condensing Tank Water Level

Sensor Removal / Installation

(3) Install assembled level sensor rod (5) in fit-

ting (3).

(4 ) Using Water Level Sensor Wrench to hold fitting

(3), tighten nut (4) (Refer to Table 1-2 for special

tool). (5 ) Connect wire (1) to terminal (2). (6 ) Install bellows assembly (Refer to para 4.7). (7 ) Install back panel (Refer to para 4.5). (8 ) Refill condensing tank with distilled water.

EQUIPMENT ALERT

The end of the silicone tube must extend

past nut (4) after nut is installed. If it is not, the level sensor rod will not function properly because the terminal will be in contact with nut (4).

(2 ) Install crimp (7), nut (4), and silicone tube (6) on

level sensor rod (5) and secure by crimping crimp (7).

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

4.9 Temperature Sensor Assembly Removal / Installation

A. Removal

(1 ) Remove back panel (Refer to para 4.5).

NOTE

Units with old style control PC board with EPROM version N or after or new style control PC board will only have two wire harnesses to disconnect instead of three.

(2 ) Disconnect two / three wire harnesses (1, Figure

4-8) from two / three terminals (2).

(3 ) Remove flex guard tubing (3) from two / three

wire harnesses (1).

(4 ) Remove temperature sensor assembly (4) from

pressure vessel (5).

B. Installation

(3 ) Install flex guard tubing (3) on three wire

harnesses (1).

(4 ) Connect three wire harnesses (1) to three

terminals (2).

(5 ) Install back panel (Refer to para 4.5).

4.10 Pressure Vessel Water Level Sensor Removal / Installation

A. Removal

(1 ) Remove back panel (Refer to para 4.5). (2 ) Remove wire tray rack and tray plate (Refer to

para (4-17).

(3 ) Disconnect wire (1, Figure 4-9) from termi- nal

(2).

(4 ) Remove nut (3) and terminal (2) from level

sensor rod (4).

(1 ) Coat threads of temperature sensor assembly

(4) with teflon tape.

(2 ) Install temperature sensor assembly (4) in

pressure vessel (5).

(5 ) Remove nut (5).

EQUIPMENT ALERT

Do not try to pull level sensor rod out of back side of pressure vessel. Doing so

will damage level sensor rod.

(6 ) Push level sensor rod (4) thru fitting (6) and into

pressure vessel (7) and remove level sensor rod.

(7 ) Remove spacer (8) from level sensor rod (4). (8 ) Remove silicone tube (9) from fitting (6).

Discard silicone tube (9) and crimp (10).

(9 ) If damaged, remove fitting (6) from pressure

vessel (7).

B. Installation

(1 ) If removed, coat fitting (6) with teflon tape and

install fitting in pressure vessel (7).

(2 ) Install silicone tube (9) and spacer (8) on level

sensor rod (4).

MA2074-01

Figure 4-8. Temperature Sensor Assembly

Removal / Installation

MAINTENANCE / SERVICE

Return To Table Of Contents

4.11 Vent Solenoid Removal / Installation

SECTION IV

MA2055-01

Figure 4-9. Pressure Vessel Water Level

Sensor Removal / Installation

NOTE

The assembled level sensor rod must be installed from the inside of the pressure vessel.

(3) Install assembled level sensor rod (4) in fit-

ting (6).

EQUIPMENT ALERT

The end of the silicone tube must extend

past nut (5) after nut is installed. If it is not, the level sensor rod will not function properly because the terminal will be in contact with nut (5).

(4 ) Install and crimp crimp (10) on silicone

tube (9).

(5 ) Install nut (5).

NOTE

Steps will vary slightly for M9D / M11D units. Use this procedure as a guide.

A. Removal

NOTE

Units prior to serial number CZ1110/OM1000 have a manifold assembly which secures the vent solenoid. Refer to the parts list to remove the vent solenoid on

these sterilizers.

(1 ) Drain water from condensing tank. (2 ) Remove back panel (Refer to para 4.5). (3 ) Tag and disconnect two wires (1, Figure 4-10)

from terminals (3).

(4 ) Tag and disconnect two wires (2) from terminals

(4).

(5 ) Disconnect three tubes (5 thru 7) from elbows (8

thru 10).

(6 ) Remove two screws (11) from bottom of

manifold assembly (12).

NOTE

Spacer (12A) is only on newer units.

(7 ) Remove manifold assembly (12) and spacer

(12A) from base (13).

(8 ) Hold screw (1, Figure 4-11) and loosen nut (2).

Turn terminals out of the way.

(9 ) Remove assembled vent solenoid (3) and elbow

(4) from tee (5).

(6 ) Install terminal (2) on level sensor rod (4) and

secure using nut (3).

(7 ) Connect wire (1) to terminal (2). (8 ) Install wire tray rack and tray plate (Refer to

para 4.17).

(9 ) Install back panel (Refer to para 4.5).

(1 0) Remove elbows (4 and 6) from vent sole-

noid (3).

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

12A

MA2056-0

Figure 4-10. Vent Solenoid Removal / Installation

EQUIPMENT ALERT

When installing the vent solenoid, the

side of the solenoid marked IN needs to be connected to the pressure line. Reversing vent solenoid will cause system failure.

(7 ) Install spacer (12A, Figure 4-10) and manifold

assembly (12) on base (13) and secure using two screws (11).

(8 ) Connect three tubes (5 thru 7) to elbows (8 thru

10).

(9 ) Connect two wires (2) to terminals (4). (10) Connect two wires (1) to terminals (3). (11) Install back panel (Refer to para 4.5). (12) Refill condensing tank with distilled water.

B. Installation

NOTE

The end of elbow (6) which receives a tube does not get coated with teflon tape.

(1 ) Coat the threads of elbows (4 and 6, Figure 4-

11) with teflon tape. (2 ) Install elbows (4 and 6) on vent solenoid (3). (3 ) Hold screw (1) and loosen nut (2). Turn termi-

nals out of the way.

(4 ) Install assembled elbow (4) and vent solenoid

(3) on tee (5).

(5 ) Turn terminals of vent solenoid (3) so wires will

connect easily to vent solenoid.

(6 ) Hold screw (1) and tighten nut (2).

TERMINALS

Figure 4-11. Vent Solenoid Fittings

Removal / Installation

MA205701

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

4.12 Fill Solenoid Removal / Installation

NOTE

Steps will vary slightly for M9D / M11D units. Use this procedure as a guide.

A. Removal

NOTE

Units prior to serial number CZ1110/OM1000 have a manifold assembly which secures the fill solenoid. Refer to the parts list to remove the fill solenoid on these sterilizers.

(1 ) Drain water from condensing tank. (2 ) Remove back panel (Refer to para 4.5). (3 ) Tag and disconnect two wires (1, Figure 4-12)

from terminals (3).

(4 ) Tag and disconnect two wires (2) from

terminals (4).

NOTE

Spacer (12A) is only on newer units.

(7 ) Remove manifold assembly (12) and spacer

(12A) from base (13).

(8 ) Hold screw (1, Figure 4-13) and loosen nut (2).

Turn terminals out of the way.

(9 ) Remove assembled vent solenoid (3) and elbow

(4) from tee (5).

(1 0) Remove elbow (6) and tee (5) from fill

solenoid (7).

(1 1) Remove elbow (8) from fill solenoid (7).

B. Installation

(1 ) Coat threads of tee (5, Figure 4-13) and elbows

(6 and 8) with teflon tape.

(2 ) Install elbow (8) on fill solenoid (7).

(5 ) Disconnect three tubes (5 thru 7) from elbows (8

thru 10).

(6 ) Remove two screws (11) from bottom of

manifold assembly (12).

12A

MA2056-0

Figure 4-12. Fill Solenoid Removal / Installation

(3 ) Install elbow (6) and tee (5) on fill solenoid (7). (4 ) Loosen nut (9). Turn terminals of fill solenoid

(7) so wires will connect easily to fill solenoid. Tighten nut (9).

(5 ) Coat threads of elbow (4) with teflon tape.

TERMINALS

Figure 4-13. Fill Solenoid Fittings

Removal / Installation

MA205801

SECTION IV

Return To Table Of Contents

MAINTENANCE / SERVICE

(6 ) Hold screw (1) and loosen nut (2). Turn termi-

nals out of the way.

(7 ) Install assembled elbow (4) and vent solenoid

(3) on tee (5).

(8 ) Turn terminals of vent solenoid (3) so wires will

connect easily to vent solenoid.

(9 ) Hold screw (1) and tighten nut (2).

EQUIPMENT ALERT

When installing the vent solenoid and the

fill solenoid, the side of the solenoids marked "IN" need to be connected to the pressure lines. Reversing solenoids will cause system failure.

(10) Install spacer (12A, Figure 4-12) and manifold

assembly (12) on base (13) and secure using two screws (11).

(11) Connect three tubes (5 thru 7) to elbows (8

thru 10). (12) Connect two wires (2) to terminals (4). (13) Connect two wires (1) to terminals (3).

(4 ) Tag and disconnect two wires (5) from terminals

(6).

(5 ) Tag and disconnect two wires (7) from

terminals (8).

(6 ) Disconnect ribbon connector (9) from connec-

tor (10).

(7 ) Tag and disconnect neutral wire (11) from

terminal (12).

(8 ) Tag and disconnect hot wire (13) from termi- nal

(14).

(9 ) Disconnect printer cable (15) from connec- tor

(16).

(1 0) Disconnect door switch harness (17) from

connector (18). M9 / M11 only

(1 1) Tag and disconnect two wires (19) from pulse

solenoid terminals (20).

(1 2) Disconnect heater element wire (21) from

connector (22).

(14) Install back panel (Refer to para 4.5). (15) Refill condensing tank with distilled water.

4.13 Control PC Board Removal / Installation

A. Removal

(1 ) Remove right hand side panel (Refer to

para 4.3).

(2 ) Disconnect pressure tube (1, Figure 4-14) from

pressure sensor (2).

NOTE

Units with old style control PC board with EPROM version N or after or new style control PC board will only have two wire harnesses (3) to disconnect instead of three.

(3 ) Disconnect two / three wire harnesses (3) from

two / three connectors (4).

NOTE

Positions of locknuts (1) and screws (2) are reversed on newer units.

(1 3) Remove two locknuts (1, Figure 4-15), screws

(2), and control PC board (3) and control PC board bracket (4) as an assembly from base (5).

NOTE

Units prior to serial number CZ1110/OM1000 have the ground wire attached to the control PC board bracket. When nut (6), starwasher (7), and screw (8) are removed, ground wire will also be removed.

(1 4) Remove nut (6), starwasher (7), and screw (8)

from control PC board bracket (4).

(1 5 ) Turn three standoff screws (9) 1/4 turn in the

counter-clockwise direction and remove control PC board (3) and insulator (10) from control PC board bracket (4).

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Midmark M9-M11 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual