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