Thermaco Big Dipper W-1250-AST Installation & Operation Instructions Download Page 16

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

MNL-ASTCU14000 16

Big Dipper

AST System

Component Identification

Big Dipper AST Lid Components (With Covers In Place)

Wheel Wiper Assembly*

Part #WWA-4

Skimming Wheel Assembly*

Part #PDA-3

Wheel Drive Sprocket*

Part #WDS-3

Big Dipper AST Lid Components (With Wheel Cover Removed)

Wiper Blades (2)

Part #PB-3

Inlet

Outlet

Safety Switch (Under Motor Cover)*

Part #MSS-7

*Note:

W-750-AST system requires one (1)

W-1250-AST system requires two (2)

Hinged Skimming Wheel

Cover

Motor/Electrical

Cover

Timer

Cover

Grease

Collector

Strainer Basket

Cover

Inlet

Outlet

Flow Control

(Covering Inlet)

Power Indicator

Light

Jog Switch

Energy Saver/

Heater Switch

Summary of Contents for Big Dipper W-1250-AST

Page 1: ...51 F 336 626 5739 E mail info thermaco com Online www big dipper com Installation Operation Instructions For Big Dipper W 750 AST and W 1250 AST Automatic Solids Transfer AST Series Units Including 23...

Page 2: ...000 2 Table of Contents Table of Contents AST System Overview 3 AST System Maintenance 5 AST Timer Operation 6 AST System Troubleshooting 7 How To Reverse AST System Operation 8 Plumbing Installation...

Page 3: ...kimming wheel at a user set time Only the cleaned water exits the unit and flows into the facility drain lines Incidental food solids less than 1 5 38 mm in diameter are separated and flushed out of t...

Page 4: ...mer on the unit is no longer operating and should be replaced If pressing the button does nothing then there may be a problem with the motor assembly Please contact Thermaco or your local service agen...

Page 5: ...cumulated solids Be sure to spray down both the inside and outside surfaces of the strainer assembly E Check the thickness of the grease layer at the top of the unit If there is more than a 1 2 12 mm...

Page 6: ...r unit needs to be set for the proper automatic self cleaning operation for the facility The Big Dipper W 750 AST model is equipped with one 1 24 Hour 96 Event time controller while the W 1250 AST mod...

Page 7: ...5 minutes per day There is a Power Indicator Light under the Timer which indicates that Power is reaching the unit If this light is not Red power is not reaching the unit 2 Remove the lid and clean aw...

Page 8: ...UNPLUG UNIT BEFORE REMOVING LID SYSTEM WILL NOT OPERATE UNLESS CENTER LID LATCHES ARE FASTENED Note W 750 AST has one 1 module W 1250 AST has two 2 modules 1 Unlatch the Unit lid Pull the side wings o...

Page 9: ...ope of 1 4 per foot 2cm per meter Use only sweep connections Don t reduce the pipe sizing on the outlet piping Don t install P trap on outlet connection of system Note The system already has a interna...

Page 10: ...ht Greater Than 6 feet 1 95m For installations where there is a significant amount of head height More than 6 ft 1 95 m Thermaco Inc recommends installation of the optional VFCA Vented Flow Control mo...

Page 11: ...controlled by a ground fault circuit breaker There is a Power Indicator Light that will glow Red if power is being fed to the unit If this light is off power is not reaching the unit This Big Dipper...

Page 12: ...CK CONNECTOR FULLY INSULATED FEMALE CONNECTOR BLACK RED RED INTERCHANGE FULLY INSULATED QUICK CONNECTORS TO CHANGE HEATER OPERATING MODE RED WIRE TO THERMOSTAT GIVES SIMULTANEOUS HEATER MOTOR OPERATIO...

Page 13: ...N WHITE BLACK WHITE WHITE BLACK BLACK WHITE WHITE WHITE POWER SUPPLY CORD BLACK BLACK FULLY INSULATED QUICK CONNECT PIGGY BACK CONNECTOR FULLY INSULATED FEMALE CONNECTOR BLACK RED RED INTERCHANGE FULL...

Page 14: ...ensboro St Asheboro N C 27204 2548 Phone 336 629 4651 MNL ASTCU14000 14 Big Dipper AST System Wiring Diagram Junction Box Wiring Diagram For Big Dipper Model W 1250 AST POWER RING TERMINALS TO GROUND...

Page 15: ...sheboro N C 27204 2548 Phone 336 629 4651 MNL ASTCU14000 15 Big Dipper AST System Electrical Components Safety Switch Part MSS 7 Motor Part M 58 Heater Part H 8 Thermostat Part TSTAT 4 Power Indicator...

Page 16: ...el Wiper Assembly Part WWA 4 Skimming Wheel Assembly Part PDA 3 Wheel Drive Sprocket Part WDS 3 Big Dipper AST Lid Components With Wheel Cover Removed Wiper Blades 2 Part PB 3 Inlet Outlet Safety Swit...

Page 17: ...itch Part ESHS 1 Big Dipper AST System Component Identification Big Dipper AST System Component Identification Rear Electrical Enclosure Assembly Part REEA 1 Timer Cover Part MTC 1 Wheel Cover Part MS...

Page 18: ...125 FOR W 1250 AST LID GASKET PART RG 7 WIPER BLADES PART PB 3 W 750 AST requires two 2 W 1250 AST requires four 4 WHEEL WIPER ASSEMBLY PART WWA 4 WHEEL DRIVE SPROCKET PART WDS 3 SKIMMING WHEEL ASSEMB...

Page 19: ...s Thermaco shall not be respon sible for damage to products resulting from vault flooding sewer line back up pumping or lift station failure ambient water flow or other sources of water damage This wa...

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