Thermaco Big Dipper W-750-AST Installation & Operation Manual Download Page 22

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Thermaco, Inc. • 646 Greensboro St. • Asheboro, N. C. 27204-2548 • Phone (336) 629-4651

MNL-AST 22

AST

The Motor/Drive Assembly provides the power for the system. Big Dipper

model AST systems have one or two Motor Assemblies and two or six

Wheel Drive Sprockets (Part# WDS-1) depending on the model.

PART# NSC-1
NYLON COUPLING

PART# WDA-1
WHEEL DRIVE AXLE

PART # WDS-1
WHEEL DRIVE SPROCKET
2 PLACES - W-300-AST & W-500-AST
6 PLACES - W-750-AST & W-1000-AST

PART # AX-1
MOUNTING AXLE

PART# KS-1
KEYWAY STOCK

PART# PHS-1032-38
#10-32 X 3/8" SCREW

PART# BBA-12
BLANK COVER PLATE ASSEMBLY

PART# LW-10
#10 LOCK WASHER

Replacement Parts List

Motor/Drive Assembly

Summary of Contents for Big Dipper W-750-AST

Page 1: ...e 336 629 4651 E mail info thermaco com Online www big dipper com Part MNL AST Automatic Solids Transfer System Models W 300 AST W 500 AST W 750 AST and W 1000 AST Automatic Grease Oils Removal System With Automatic Solids Transfer System INSTALLATION OPERATIONS MANUAL PH ...

Page 2: ...04 2548 Phone 336 629 4651 MNL AST 2 AST System Overview 3 Maintenance Procedures 5 Troubleshooting Guide 6 Specifications Dimensions 9 Plumbing Installation Instructions 11 Electrical Installation Instructions 12 Setting the Timer 18 Instructions for Reversing Components 19 Replacement Parts Information 20 Limited Warranty 24 Owner s Manual TABLE OF CONTENTS ...

Page 3: ...ils and solid food waste The grease and oils are skimmed into a collection container while the solid food waste is shredded and passed down line The entire process is automated and controlled by a system timer The recovered grease oils are virtually water free so they can typically be sold to a rendering company FEATURES ADVANTAGES Automatically removes free floating fats and oils Helps reduce FOG...

Page 4: ... the Big Dipper AST s stainless steel tank Clean water is allowed to exit the unit Periodically food scraps and other solid waste are shredded by a macerating pump and re entered into the outlet flow just after the Big Dipper AST automatic grease oils removal chamber Atapresettimeofdaythetimecontrolleractivatesthesystemtobegintheautomaticgrease oil skimming operation At this time the heater s acti...

Page 5: ... up on the bottom of the Grease Oils Retention area of the Big Dipper tank When accumulation exceeds 25 mm use a long handled spatula to stir up the sediment while water is flowing through the tank It may be necessary to drain the tank and clean the unit thoroughly A wet vac works well for this purpose Use hot water to clean the walls of the tank Only perform this process after the system has gone...

Page 6: ... the power and use a long handled spatula or similar instrument to stir the bottom until water flows through the unit If necessary drain and clean the sediment from the unit To prevent recurrence schedule this cleaning to be done on a regular basis Use hot water to spray the inside of the system for cleaning the walls of the tanks Be sure to fill tank with water before restarting the system Only p...

Page 7: ...fthemotorandskimmerwheeloperate checktobesure the safety switch is fully depressed when the lid is fastened on the unit 4 Check motor coupling to assure tightness 5 If none of the above is a problem then check the heater assembly If the side of the Big Dipper tank does not begin to feel warm within 15 minutes the heater element is burned out and must be replaced No grease is collected in the conta...

Page 8: ... Disconnect power to AST Unit 2 Remove macerator pump cover 3 Remove jam wrench A attached to top of macerator pump 4 Remove black plug covering socket B at the center of the pump 5 Insert jam wrench into socket at center of the pump B 6 Turn jam wrench in either direction to clear jam 7 Remove jam wrench from the socket 8 Replace jam wrench 9 Replace black plug into socket B 10 Replace macerator ...

Page 9: ...P SIDE VIEW INLET END VIEW OUTLET E F H 5 1 4 12 G A C B D 4 1 2 Inches A B C D E F G H Rated Flow GPM Model 11 10 27 1 4 5 3 4 17 9 3 8 3 Dia 30 Material 16 Ga 304 Stainless Steel Bright Finish Electrical No Skimming Wheels Skimming Rate Retention Capacity 60 lbs 30 lb hr 2 DIMENSIONS W 300 AST W 300 AST HEIGHT REQUIRED FOR SERVICING SOLIDS SEPARATION STRAINER 11 I I 115 V 60Hz 2300W 13 Amps SPEC...

Page 10: ...Specifications Models W 750 AST W 1000 AST COLLECTORSIDEVIEW GREASE OILS COLLECTION CONTAINER INLET OUTLET PUMP SIDE VIEW INLET END VIEW OUTLET E F H 5 1 4 12 G A C B D 4 1 2 HEIGHT REQUIRED FOR SERVICING SOLIDS SEPARATION STRAINER I Material 16 Ga 304 Stainless Steel Bright Finish 218 lbs 138 6 lb hr 6 SPECIFICATIONS W 750 AST W 1000 AST 208 240 V 60Hz 3000W 14 5 Amps 208 240 V 60Hz 3000W 14 5 Am...

Page 11: ...ited Warranty for the system LOCATING THE UNIT To minimize grease build up in piping a BIG DIPPER system should be located as close as possibletothefixtureitisserving Thesystem should be visible and easily accessible for maintenance and inspection Make sure that adequate room is provided around the sys temtoalloweasyremovalofthegreasecollec tion container and to access the electrical as sembly Mak...

Page 12: ...6 629 4651 MNL AST 12 AST NOTE Time Clock is supplied with system All wiring must comply with any local state and national codes that apply in your area TIME CONTROLLER UNDER LID 120 VAC 20 AMPS FROM GROUND FAULT CIRCUIT BREAKER NOT SUPPLIED POWER CORD PLUGS INTO OUTLET ELECTRICAL PANEL NOT SUPPLIED DUPLEX OUTLET NOT SUPPLIED Electrical Connection Detail W 300 AST W 500 AST ...

Page 13: ...4651 MNL AST 13 AST Electrical Connection Detail Models W 750 AST W 1000 AST ELECTRICAL PANEL NOT SUPPLIED 208 240 VAC 30 AMPS FROM GROUND FAULT CIRCUIT BREAKER NOT SUPPLIED DUPLEX OUTLET NOT SUPPLIED POWER CORD PLUGS INTO OUTLET TIME CONTROLLER UNDER LID NOTE Time Clock is supplied with system All wiring must comply with any local state and national codes that apply in your area ...

Page 14: ...on the side of the Big Dipper With a wiring diagram on the inside of the cover and each position clearly numbered changes to the Big Dipper s operation or troubleshooting is quick and simple The only tool required is a small flat head screwdriver Therearethreestepstoconnectingorremovingaconductor wire toapositionontheterminal block See Diagram Below 1 Insert a small screwdriver at a slight angle i...

Page 15: ... FROM POSITION R9 TO POSITION L BLANK MOVE BLACK WIRE OF HEATER FROM BLANK POSITION TO POSITION R9 MOVE WHITE WIRE FROM POSITION L9 TO POSITION R BLANK TO REVERSE MOTOR ROTATION SWITCH WHITE WIRE WITH RED WIRE AT POSITION R14 AND POSITION R10 RESPECTIVELY FOR USE WITHOUT A HEATER MOVE RED WIRE OF HEATER FROM POSITION R12 TO BLANK POSITION REMOVE WHITE WIRE FROM POSITION R9 AND HEATER TERMINAL PUSH...

Page 16: ...PLE A SEGMENT LABELED L10 WOULD GO TO POSITION 10 ON THE LEFT SIDE OF THE DISTRIBUTION BLOCK 12 11 GR WHITE POWER CORD FROM PUMP MOTOR BLACK WHITE RED RUN CAPACITOR PUSH BUTTON SWITCH BLUE R16 BLUE R12 BL L14 L15 L16 R15 L12 RED R13 13 14 L R 16 15 TO REVERSE MOTOR ROTATION SWITCH WHITE WIRE WITH RED WIRE AT POSITION L12 AND POSITION L16 RESPECTIVELY BL BLACK WHITE RED PUSH BUTTON SWITCH THERMOSTA...

Page 17: ...ent configurations The standard configuration as shipped from the factory is called SIMULTANEOUS OPERATION and its wiring diagram is shown on pages 15 16 for respective units SIMULATANEOUS OPERATION is where the skimmer motor and tank heater operate at the same time and are electrically energized simultaneously whenever the 24 hour time control turns the Big Dipper ON SIMULTANEOUS OPERATION is the...

Page 18: ... 1000 AST are factory preset to operate the automatic cleaning cycle from 4 00 a m to 6 00 a m each day of the week Depending upon the amount of accumulated grease and oils the system may need to be reset to operate more or less time to skim all separated grease and oils This can be determined by removing the top cover and observing the depth of the separated grease layer shortly after a cleaning ...

Page 19: ... Sump Gasket Part SOS 1 off the Outlet Pipe Part HSP 1 and remove the Outlet Pipe from the tank 3 Reverse Outlet Pipe Part HSP 1 and reinstall in the tank Place Plastic Sump Gasket Part SOS 1 on the outlet pipe as shown 4 Reverse the locations of the Sump Blank Cover Plate Part SCA 1 and the Sump Gasket Retainer Part SRR 2 and reinstall using the screws and lockwashers Reversing The Grease Oils Su...

Page 20: ... normal position as shipped from the factory PART PHS 1032 12 10 32 X 1 2 LONG SCREW 3 PLACES PART LW 10 10 LOCK WASHER 3 PLACES PART LW 10 10 LOCK WASHER 4 PLACES PART PHS 1032 12 10 32 X 1 2 LONG SCREW 4 PLACES LOCATE TOP HOLE OF OSP 2 ONTO THE BACK SIDE OF THE WELD NUT IN THIS HOLE PART SOS 1FOR W 300 AST AND W 500 AST PART OR 2329 FOR W 750 AST AND W 1000 AST PLASTIC SUMP GASKET SLIDE ON HSP 1...

Page 21: ...layer within the tank Small rubber Wiper Blades Part PB 3 within the Wheel Wiper Blade Assembly contact the sides of the Plastic Skimming Wheel Assembly and scrape off the grease and oils that have adhered to the sides of the skimming wheel and route it to an outlet sump PART AX 1 MOUNTING BAR PART PDA 1 PLASTIC SKIMMING WHEEL ASSEMBLY 2 PLACES W 300 AST W 500 AST 6 PLACES W 750 AST W 1000 AST PAR...

Page 22: ... Dipper model AST systems have one or two Motor Assemblies and two or six Wheel Drive Sprockets Part WDS 1 depending on the model PART NSC 1 NYLON COUPLING PART WDA 1 WHEEL DRIVE AXLE PART WDS 1 WHEEL DRIVE SPROCKET 2 PLACES W 300 AST W 500 AST 6 PLACES W 750 AST W 1000 AST PART AX 1 MOUNTING AXLE PART KS 1 KEYWAY STOCK PART PHS 1032 38 10 32 X 3 8 SCREW PART BBA 12 BLANK COVER PLATE ASSEMBLY PART...

Page 23: ...ST WL 500 AST FOR W 750 AST WL 750 AST FOR W 1000 AST WL 1000 AST LID GASKET PART RG 7 GREASE OILS COLLECTION CONTAINER NOT SHOWN PART FOR W 300 AST GC 2 FOR W 500 AST GC 5 FOR W 750 AST W 1000 AST 1 GC 3 MACERATING PUMP UNDER COVER PART FOR W 300 AST W 500 AST MP 120 P77 FOR W 750 ASTthrough W 1000 AST MP 240 CD50 NOTE Filter Baskets not shown are Part WWB AST Models W 300 AST W 500 AST W 750 AST...

Page 24: ...ther sources of water damage This warranty is void if the serial number on the product has been altered or defaced Thermaco will not replace timers which have been installed in underground vaults This warranty is void should use installation and application be contrary to a written agreement between Thermaco and the user Thermaco does not make any other representations or warranties express or imp...

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