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©2013 Thermaco, Inc. All rights reserved  •  Patented/Patents Pending  •  Specifications subject to change without notice

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

MNL-ASTPS14000 3

Big Dipper

®

 Automatic Solids Transfer

(AST) System Overview

The  Thermaco, Inc. Big Dipper

®

 Automatic Grease and Oils 

Removal System removes free-floating grease & oils from kitchen 

drain water flows.  As most food service facility managers already 

know, grease buildup within a building’s plumbing drainage system 

is a major cause of problems due to drain line blockages.  These 

problems jeopardize normal operations as well as create health 

and safety hazards within the facility itself.

The proper installation of a Big Dipper System can reduce or eliminate grease problems.  Use 

of the Big Dipper assures minimization and/or elimination of costly sewer surcharges and fines 

through efficient separation and removal of free-floating grease & oils.  In addition, the Big Dipper 

also helps reduce or eliminate pumping and disposal costs associated with conventional grease 

traps or interceptors.  The recovered grease & oils are substantially water-free and are suitable 

for recycling by local rendering and/or biodiesel companies.

The Big Dipper system is an automatic, self-cleaning device.  As greasy kitchen effluent drains 

from kitchen fixtures, the unit traps the grease & oils.  These separate from the effluent and rise 

to the surface of the separator tank.  The unit automatically skims the trapped grease & oils and 

transfers the grease & oils to a collection container.  A timer controls the self cleaning operation, 

activating the skimming 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” (25 mm) in diameter are separated and flushed out of the system 

automatically by the Automatic Solids Transfer component.  These incidental solids are typical of 

those that are rinsed off of plates before going to a dishwasher.  The Eductor Pump of the AST 

is not designed to handle non-food products such as plastic, rubber or metal items.

The Big Dipper system’s compact footprint allows installation directly at the source, where grease 

problems originate.  The system design also allows easy maintenance and operation requiring only 

a minimal amount of daily and weekly maintenance to maintain peak operating performance.

The Big Dipper system design allows for maximum installation flexibility.  Reversing the system 

operation is as simple as rotating the cover assembly of the unit.

Grease interceptors, grease traps, automatic recovery units, grease removal devices and other 

similar plumbing devices receiving kitchen flows from sinks, floor drains, woks and other food 

bearing sources may generate odors.  There are many factors influencing odor evolution and dis-

semination.  These include room ventilation, kitchen menu, ambient temperatures, ware washing 

practices, grease/oil input, daily input fluid volume, sanitizers, installation plumbing design and 

product maintenance/upkeep.  Odors are usually prevented by good area ventilation, frequent 

fluid inputs, good product maintenance practices and proper product installation.  Additional steps, 

including aeration, chlorination, improved area ventilation and additional maintenance control, 

may be needed at some sites.

PROPERLY 

DISPOSE OF 

CONTENTS 

DAILY

Содержание Big Dipper W-250-AST

Страница 1: ...00 633 4204 V 336 629 4651 F 336 626 5739 E mail info thermaco com Online www big dipper com Installation Operation Instructions For the Big Dipper W 250 AST Automatic Solids Transfer AST Series Unit...

Страница 2: ...Phone 336 629 4651 MNL ASTPS14000 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 Ope...

Страница 3: ...self cleaning operation activating the skimming 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 25 mm in diame...

Страница 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...

Страница 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...

Страница 6: ...allation is complete the Big Dipper unit needs to be set for the proper automatic self cleaning operation for the facility The Big Dipper W 250 AST model is equipped with one 1 24 Hour 96 Event time c...

Страница 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...

Страница 8: ...er AST System Unit Operation ALWAYS UNPLUG UNIT BEFORE REMOVING LID SYSTEM WILL NOT OPERATE UNLESS CENTER MODULE IS IN PLACE 1 Unlatch the Unit lid Pull the side wings outward 2 Lift the center module...

Страница 9: ...sible Assure that outlet pipe has at least a slope of 1 4 per foot 2 cm per meter Use only sweep connections Don t reduce the pipe sizing on the outlet piping Don t install P trap on outlet connection...

Страница 10: ...ad height is greater than 6 feet 1 95 m NOTE Drawing for reference only Equipment must be installed in compliance with all applicable laws regu lations and codes including plumbing codes Installation...

Страница 11: ...lectrical circuit 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...

Страница 12: ...ULLY INSULATED FEMALE CONNECTOR BLACK RED RED INTERCHANGE FULLY INSULATED QUICK CONNECTORS TO CHANGE HEATER OPERATING MODE RED WIRE TO THERMOSTAT GIVES SIMULTANEOUS HEATER MOTOR OPERATION BLACK WIRE T...

Страница 13: ...Thermaco Inc 646 Greensboro St Asheboro N C 27204 2548 Phone 336 629 4651 MNL ASTPS14000 13 Big Dipper AST System Electrical Components Safety Switch Part MSS 7 Motor Part M 58 Heater Part H 8 Thermo...

Страница 14: ...vers In Place Big Dipper AST Lid Components With Wheel Cover Removed Note W 250 AST system requires one 1 Hinged Skimming Wheel Cover Motor Electrical Cover Timer Cover Grease Collector Strainer Baske...

Страница 15: ...h Part MJS 1 Energy Saver Heater Switch Part ESHS 1 Big Dipper AST System Component Identification Big Dipper AST System Component Identification Timer Cover Part MTC 1 Wheel Cover Part MSC 1 Wheel Wi...

Страница 16: ...Units THERMOSTAT 1 per unit PART TSTAT 4 INTERNAL FLOW CONTROL PART MFC 25 FOR W 250 AST LID GASKET PART RG 7 WIPER BLADES PART PB 3 W 250 AST requires two 2 WHEEL WIPER ASSEMBLY PART WWA 4 WHEEL DRI...

Страница 17: ...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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