Du Pont SORVALL RC-5 User manual

SERVICEMANUALSORVALC
RC-5 &
RC-5BAUTOMATICSUPERSPEEDREFRIGERATEDCENTRIFUGESDu
Pont CompanyMedical
ProductsSorvall®
InstrumentsWilmington,
Delaware
19898U.S.A.Sorvall®
Centrifuges
<ffl^PN
50126-1Issued
June 1990
******Note*******
Effective January 1, 2003 The Sorvall RC-5 centrifuge will no
longer be supported. Parts will be supplied if currently in
Kendro stock until depletion. Once depleted, parts will no
longer be available.

Sorvall®
CentrifugesThis
manual is a guide for service of
theSORVALL®
RC-5 and RC-5B
CentrifugesData
herein has been verified and validated and is believed adequate for the intended useof
the centrifuges. If the centrifuges or procedures are used for purposes over and abovethe
capabilities specified herein, confirmation of their validity and suitability should
beobtained,
otherwise, DuPont does not guarantee results and assumes no obligation
orliability.
This publication is not a license to operate under, nor a recommendation
toinfringe
upon. any process patents.This
service manual is intended for use only by qualified service personnel. Due to thehigh
electrical potential in the centrifuges described herein, untrained individuals mustnot
attempt any of the procedures contained in this service manual.This
service manual is intended as a service aid. While the manual is kept current
andincludes
information regarding significant design changes, designs may still vary fromunit
to
unit.NOTES,
CAUTIONS and WARNINGS within the text of this manual are used to emphasizeimportant
and critical
instructions.WARNING:
AWaming Informs the operator of a hazard or an unsafe practice that couldresult
in personal injury, affect the operator's health, or contaminate
theenvironment.CAUTION:
A Caution informs the operator of an unsafe practice that could result
indamage
of equipment.NOTE:
A Note highlights essential
information.•IIllllll^t;:^:;:;:;:;:;:;:;:;:;:;:;:;:^:;yJI>;y^:yJlijll:l!>;^'li!t!MI»y^>f{^^rmmmm._
.....^.^
_._.__
...^_^.^..-^.-...^..._.-.--.-—-_^ILl^A;:M»:^^^^^

Sorvall® Centrifuges Table of
ContentsTable
of
ContentsParagraph
PageSection
1. INTRODUCTION1-1.
Scope of the Manual. .................................... 1-11-2.
Warnings and Cautions .................................. 1-11-3.
Using This Manual...................................... 1-31-4.
Troubleshooting Information. .............................. 1-31-5.
Trouble Diagnosis. ...................................... 1-61-6.
Service Decontamination Policy ............................ 1-71-7.
Warranty Responsibility ..................................
1-8Section
2. DESCRIPTION2-1.
Purpose of Equipment ................................... 2-12-2.
Description. ........................................... 2-12-3.
Controls and Indicators .................................. 2-22-4.
Specifications .......................................... 2-82-5.
Location .............................................. 2-92-6.
Routine Inspection and Cleaning ........................... 2-92-7.
Lubrication. ...........................................
2-10Section
3. THEORY OF OPERATION3-1.
General .............................................. 3-13-2.
RC-5 Theory of Operation................................. 3-13-3.
RC-5B Theory of Operation. ............................... 3-53-4.
Summary of HOLD and RUN Modes .........................
3-6Section
4. DRIVE SYSTEM
CIRCUIT4-1.
General .............................................. 4-14-2.
Drive Motor Circuit. ..................................... 4-14-3.
Drive Motor Enable Circuit................................ 4-24-4.
Brake Circuit .......................................... 4-114-5.
Brush Warning Circuit ................................... 4-134-6.
Speed Control Circuit.................................... 4-164-7.
Zero Speed Detector Circuit ............................... 4-174-8
Overspeed Detector Circuit. ............................... 4-184-9.
Automatic Rate Controller Circuit, RC-5B .................... 4-224-10.
Door Interlock Circuit. ...................................
4-28iii

Table of Contents Sorvall®
CentrifugesTable
of Contents
(continued)Paragraph
PageSections.
REFRIGERATION
SYSTEM5-1.
General .............................................. 5-15-2.
Refrigeration Cycle ...................................... 5-15-3.
Condensing Unit Electrical Circuit .......................... 5-25-4.
Refrigeration Control .................................... 5-45-5.
Temperature Control Circuit. .............................. 5-55-6.
Overtemperature Detection Circuit..........................
5-11Section
6. MAINTENANCE AND
REPAIR6-1.
General .............................................. 6-16-2.
Preventive Maintenance Checks ............................ 6-1a.
Checks with Power OFF .............................. 6-1b.
Checks with Power ON ............................... 6-26-3.
Cabinet Panel Removal................................... 6-26-4.
Drive Motor Replacement ................................. 6-36-5.
Torque Trimmer Potentiometer R204 Replacement .............. 6-66-6.
Saturable Reactor Replacement ............................ 6-76-7.
Drive Motor Brush Replacement, RC-5 ....................... 6-86-8.
Drive Motor Brush Replacement, RC-5B...................... 6-96-9.
Compressor Start and Run Capacitors
andPotential
Relay Replacement. ............................. 6-136-10.
Condenser Fan Replacement .............................. 6-146-11.
Condenser Fan Motor Replacement ......................... 6-156-12.
Evaporator Replacement ................................. 6-176-13.
Condensing Assembly Replacement ......................... 6-236-14.
Electronic Controls Replacement ........................... 6-25a.
Resistance Temperature Detector...................... 6-25b.
Relays K201 Compressor Relay, and K202 Motor Relay ..... 6-26c.
Transformers T201 and T202 (T203) ................... 6-27d.
Circuit Breaker CB301 (RC-5) ........................ 6-28e.
Circuit Breaker CB301 (RC-5B) ....................... 6-30f.
P.C. Assembly 20809 ............................... 6-30g.
P.C. Assembly 20126 (RC-5. SN 7500414 and Higher).and
50195 (RC-5B) ............................... 6-31h.
Key Switch S202 (RC-5) ............................. 6-32i.
Door Microswitch S301 (RC-5) ........................ 6-33j.
Door Hinge Microswitch S301 (RC-5B) .................. 6-33k.
Door Solenoid L301 (RC-5)........................... 6-341.
Door Release Microswitch S303 (RC-5B). ................ 6-35m.
Door Solenoid L301 (RC-5B).......................... 6-36n.
Tachometer Indicator M101 .......................... 6-36o.
Temperature Indicator M102 .........................
6-38iv
---------
12987

Sorvall® Centrifuges Table of
ContentsTable
of Contents
(continued)Paragraph
PageSection
6. MAINTENANCE AND REPAIR (continued)p.
Timer (S106 and S107).............................. 6-39q.
Rate Control Rl 10 (RC-5B). .......................... 6-406-15.
Door Adjustment ....................................... 6-40a.
Preparation ...................................... 6-40b.
Adjustment of Mounting Bars ........................ 6-41c.
Hinge Height Adjustment............................ 6-41d.
Latch Height Adjustment ............................ 6-42e.
Reinstallation of Components......................... 6-436-16.
Refrigeration Maintenance ................................ 6-43a.
Compressor Resistance Values ........................ 6-43b.
Compressor Burnout ............................... 6-43c.
Triple Sweep Evacuation of Refrigerant and Charge ........ 6-44d.
Checking Refrigerant Charge ......................... 6-45e.
Leak Detection .................................... 6-45f.
Evaporator Liner Cleaning ...........................
6-45Section
7. CALIBRATION PROCEDURES7-1.
General .............................................. 7-17-2.
Calibration Sequence .................................... 7-17-3.
Calibration Criteria and Adjustment Locations ................. 7-17-4.
Personnel Safety........................................ 7-17-5.
Test Equipment Required ................................. 7-27-6.
Calibration Procedures ................................... 7-2a.
Speed Indicator M101 Zero Adjust.................... 7-2b.
Temperature Indicator Ml 02 Zero Adjust............... 7-2c.
Speed Control Potentiometer R106.................... 7-2d.
Source Power .................................... 7-2e.
Torque Trimmer Potentiometer R204 .................. 7-3f.
Speed Control Low Speed Potentiometer (R18)and
High Speed Potentiometer (R9) Set ................ 7-5g.
Speed Indicator M101 Tracking AdjustmentPotentiometer
(R109) .............................. 7-5h.
Overspeed Detector Potentiometer (R73)................ 7-5i.
Power Supply. Temperature Control: +5 V (R7)and
+10 V (R4)................................... 7-6j.
Temperature Indicator Ml 02 Deflection Adjust-20°C
Potentiometer (R41) and +40°CPotentiometer
(R40) ............................... 7-6k.
Rotor Speed Temperature Differential Set-PointCalibration
at 20 000 Rpm (R41) ..................... 7-71.
Temperature Control Set-Points Potentiometer(R42
and R43) ................................... 7-8v

Table of Contents Sorvall®
CentrifugesTable
of Contents
(continued)Paragraph
PageSection
7. CALIBRATION PROCEDURES (continued)m.
Overtemperature Detection Set-Pointer (R58) ............ 7-8n.
Compressor Timing Potentiometer (R84)................ 7-9o.
Timer Control Knob and SwitchAdjust
(S106 and S107) ............................ 7-107-7.
RC-5B Automatic Rate Controller Calibration..................
7-10Sections.
ILLUSTRATED
PARTS8-1.
General . . .8-2.
Indentation8-18-1List
of
TablesTable
Page1-1.
Components Abbreviation ................................ 1-41-2.
Number/Letter System for P/J 304 ......................... 1-41-3.
Symbols Used on Schematics .............................. 1-51-4.
Trouble Diagnostic Chart ................................. 1-62-1.
Function of Controls and Indicators—RC-5 ................... 2-22-2.
Function of Controls and Indicators—RC-5B .................. 2-52-3.
Superspeed Rotor Specifications............................ 2-94-1.
Troubleshooting Chart, ac Power Distribution and DriveMotor
Circuits ........................................ 4-34-2.
Troubleshooting Chart, Indicator Circuits. RC-5................ 4-44-3.
Troubleshooting Chart. Indicator Circuits, RC-5B. .............. 4-54-4.
Troubleshooting Chart. Speed Control and DriveMotor
Circuits ........................................ 4-74-5.
Troubleshooting Chart. Drive Motor Enable and TemperatureControl
Circuits ....................................... 4-94-6.
Troubleshooting Chart. Brake Circuit........................ 4-124-7.
Troubleshooting Chart, Drive Motor Brushes .................. 4-154-8.
Troubleshooting Chart. Speed Control Circuit ................. 4-194-9
Troubleshooting Chart, Overspeed Detector Circuit ............. 4-204-10.
Troubleshooting Chart, Automatic Rate Controller .............. 4-244-11.
Troubleshooting Chart, Door Interlock Circuits ................ 4-315-1.
Troubleshooting Chart, Refrigeration Circuits.................. 5-35-2.
Troubleshooting Chart. Compressor and TemperatureControl
Circuits ....................................... 5-95-3.
Troubleshooting Chart. Temperature Control Circuits ...........
5-12vi

Sorvall® CentrifugesTable of
ContentsList
of Tables
(continued)Table6-1.7-1.7-2.7-3.8-1.8-2.8-3.8-4.8-5.8-6.8-7.8-8.8-9.8-10.8-11.Tecumseh
Compressor Motor Resistance Values.....Calibration
Sequence .........................Test
Point Descriptions for P.C. Board. PN 50059 . . .
.Potentiometer
Adjustment for P.C. Board. PN 50059.
.RC-5
Parts List..............................RC-5
Hinge Assembly.........................RC-5B
Parts List ............................RC-5B
Motor and Brush Lift Assembly ............RC-5B
Door and Interlock Assembly. .............Door
Assembly. PN 50095 .....................Door
Interlock Assembly, PN 50082 ..............Selected
Spare Parts, Minimum Inventory .........Substitute
Capacitors for RC-5/5B Condensing UnitsExterior
Panels for RC-5B. .....................Gyro
and Motor Bearing Kits
...................Page6-437-47-127-138-28-138-148-318-328-358-378-398-408-408-40List
of
IllustrationsFigure
Page2-1.
Location of Controls and Indicators—RC-5 .................... 2-32-2.
Location of Controls and Indicators—RC-5B. .................. 2-73-1.
Schematic Diagram —RC-5 Power Supply .................... 3-93-2.
Schematic Diagram—RC-5 System Operation. ................. 3-103-3.
RC-5 Cabinet Fan, Compressor Fan and Drive MotorEnable
Circuits ....................................... 3-133-4.
RC-5 Brush Warning Indicator Circuit ....................... 3-143-5.
RC-5 Door Interlock Circuit ............................... 3-153-6.
RC-5 Door. Main Power, ON. OFF and Brake Indicator Circuit ..... 3-153-7.
RC-5 Tachometer Generator and Indicator Circuit .............. 3-153-8.
RC-5 Drive Motor and Brake Circuit......................... 3-163-9.
RC-5 Temperature Meter and Set Point Circuit, andSpeed
Control Potentiometer ............................. 3-173-10.
RC-5 Compressor Circuit ................................. 3-183-11.
Schematic Diagram, RC-5B Power Supply to SN 7810303 ........ 3-193-12.
Schematic Diagram, RC-5B Power Supply, SN 7810304and
Higher .......................................... 3-203-13.
Schematic Diagram. RC-5B System Operation to SN 7810303 ..... 3-223-14.
Schematic Diagram, RC-5B System Operation, SN 7810304and
Higher .......................................... 3-243-15.
Timing Sequence for RC-5B Automatic Rate Controller. .......... 3-263-16.
Schematic Diagram. RC-5B System Operation,Automatic
Rate Controller ................................
3-27Vll

Table of Contents Sorvall®
CentrifugesList
of Illustrations
(continued)Figure
Page3-17.
RC-5B Drive Motor Enable Circuit .......................... 3-283-18.
RC-5B Brush Warning Indicator Circuit ...................... 3-293-19.
RC-5B Door Interlock Indicator Circuit. ...................... 3-293-20.
RC-5B Main Power. ON, Refrigeration and BrakeIndicator
Circuits ...................................... 3-293-21.
RC-5B Tachometer Generator and TachometerDeflection
Circuit....................................... 3-303-22.
RC-5B Drive Motor and Brake Circuit ....................... 3-313-23.
RC-5B Temperature Meter and Set Point Circuit and SpeedControl
Potentiometer .................................. 3-323-24.
RC-5B Compressor Circuit................................ 3-323-25.
RC-5 System Power Distribution Diagram, PN 50035-3 .......... 3-333-26.
RC-5 System Schematic. PN 50031-4 ........................ 3-353-27.
RC-5 Lower Control Panel Wiring Diagram, PN 50041-6 .......... 3-413-28.
RC-5 P.C. Board to Lower Control Panel Wiring Diagram,PN
50039-2 .......................................... 3-433-29.
RC-5/5B P.C. Board Schematic Diagram. PN 20810-9 ........... 3-453-30.
RC-5B System Schematic. PN 50208-10. ..................... 3-513-31.
RC-5B System Schematic, PN 50208-8....................... 3-553-32.
RC-5B System Schematic, PN 50208-2....................... 3-593-33.
RC-5B Lower Control Panel P.C. Board Schematic Diagram,PN
50346-1 .......................................... 3-653-34.
RC-5B Rate Control Schematic Diagram. ..................... 3-673-35.
RC-5B Wiring Diagram. PN 50204-8......................... 3-693-36.
Rate Control System Schematic. PN 50160-8 .................. 3-733-37.
Rate Control Wiring Diagram. PN 50161-4 .................... 3-754-1.
Drive Motor Circuit. Simplified Schematic Diagram ............. 4-14-2.
Drive Motor Enable Circuit, Simplified Schematic Diagram ....... 4-24-3.
Brake Circuit, Simplified Schematic Diagram .................. 4-114-4.
Brush Warning Circuit, Simplified Schematic Diagram........... 4-144-5.
Speed Control Circuit, Simplified Schematic Diagram. ........... 4-164-6.
Zero Speed Detector Circuit. Simplified Schematic Diagram ....... 4-174-7.
Overspeed Detector Circuit. Simplified Schematic Diagram ....... 4-184-8.
Automatic Rate Controller. Block Diagram .................... 4-224-9.
Automatic Rate Controller, Simplified Block Diagram ............ 4-234-10.
Door Interlock Circuit. RC-5. Simplified Schematic Diagram ...... 4-294-11.
Door Interlock Circuit. RC-5B. Simplified Schematic Diagram ..... 4-305-1.
Fluid Circuit of Refrigeration System ........................ 5-15-2.
RC-5 High Torque Motors—3 Terminal Overload-Potential
Relay ........................................ 5-25-3.
Refrigeration Electrical Circuit, Simplified SchematicDiagram
(RC-5B) ...................................... 5-55-4.
Temperature Control Circuit, Block Diagram .................. 5-65-5.
Temperature Control Circuit, Simplified Schematic Diagram ...... 5-75-6.
Overtemperature Detection Circuit, Simplified Block Diagram ..... 5-115-7.
Capacitor Box Wiring Diagram .............................
5-13viii

Sorvall® Centrifuges Table of
ContentsList
of Illustrations
(continued)Figure
Page6-1.
through 6-61. Illustration of Replacement Procedures ............ 6-3through
6-447-1.
Test Point and Adjustment Locations for P.C. Board Assembly,PN
50059 ............................................ 7-37-2.
Test Setup for Temperature Meter Deflection Adjustment......... 7-78-1.
RC-5 Parts Location, Gyro Action Drive Assembly. .............. 8-58-2.
RC-5 Parts Location, Motor. Tachometer and Lower CouplingAssembly
............................................ 8-68-3.
RC-5 Parts Location. Control Console (Rear View)............... 8-78-4.
RC-5 Parts Location, Lower Control Panel P.C. Board.PN
20126 ............................................ 8-88-5.
RC-5 Parts Location, Cabinet (Rear View) ..................... 8-98-6.
RC-5 Parts Location. Cabinet (Front View) .................... 8-108-7.
RC-5 Parts Location. Cabinet (Right Side View). ................ 8-118-8.
RC-5 Door Handle and Latching Assembly .................... 8-128-9.
RC-5 Hinge Assembly.................................... 8-138-10.
RC-5B Parts Location: Gyro Action Drive, Lower Couplingand
Motor Assembly.................................... 8-178-11.
RC-5B Parts Location: Control Console (Rear View toSN
7810303) ......................................... 8-188-12.
RC-5B Parts Location: Control Console (Rear View,SN
7810304 and Higher) ................................ 8-198-13.
RC-5B Parts Location: Cabinet (Rear View to SN 7809416)........ 8-208-14.
RC-5B Parts Location: Cabinet (Rear View, SN 7809417and
Higher) .......................................... 8-218-15.
Lower Control Panel Assembly ............................. 8-228-16.
RC-5B Parts Location: P.C. Assembly 12370 to SN 7809416. ...... 8-238-17.
RC-5B Parts Location: P.C. Assembly 12370 (SN 7809417and
Higher) .......................................... 8-238-18.
RC-5B Parts Location: Cabinet (Front View) ................... 8-248-19.
RC-5B Front View. ...................................... 8-258-20.
RC-5B Parts Location: Cabinet (Right Side View) ............... 8-268-21.
RC-5B Parts Location: Automatic Rate Controller,Control
Panel......................................... 8-278-22.
Parts Location: Gyro Action Drive. Lower Coupling and MotorAssembly
(SN 8004600 and Higher) ........................ 8-288-23.
Parts Location: Gyro Action Drive Assembly. PN 12817(SN
8004600 and Higher) ............................... 8-298-24.
RC-5B Parts Location: Drive Motor and BrushLift
Assembly .......................................... 8-308-25.
RC-5B Door and Interlock Assembly. ........................ 8-348-26.
Door Assembly ......................................... 8-368-27.
Door Interlock Assembly. .................................
8-38ix/x

Sorvall®
CentrifugesIntroductionSection
1INTRODUCTION1-1.
Scope of the
ManualThis
manual is a guide for servicing the SORVALL RC-5 and RC-5B Automatic Refriger¬ated
Superspeed Centrifuges.It
has been written for the SORVALL factory trained Service Specialist who is familiar
withelectronics,
knows the operating procedures of these centrifuges and understands factorymethods
of performing adjustments and calibrations.This
manual provides such personnel with a fault isolation method that isolates
andidentifies
the cause of a problem within the centrifuge, as well as a parts list
andInformation
for ordering replacement parts necessary for repairs of parts or systemswithin
the
centrifuge.Service
personnel must read and understand the theory of operation beforeservicing
the
centrifuge.1-2.
Warnings and
CautionsWhile
warnings and cautions appear wherever appropriate throughout the manual,service
personnel should familiarize themselves with those listed in this section beforeattempting
to service a
centrifuge.1-1