
Big Dipper® IS Point Source Automatic
1
2
END VIEW
4 in [100mm]
PIPE
INLET/OUTLET
8.80 in
[223.4 mm]
19.09 in
[484.8 mm]
2.54 in
[64.4 mm]
24.29 in
[616.9 mm]
VESSEL VENT WITH
1 in NPT CONNECTION
12.06 in
[306.4 mm]
1
1
2
2
3
3
4
4
THIS DRAWING CONTAINS PROPRIETARY AND PATENTED MATERIAL. THIS DRAWING MAY NOT BE REPRODUCED IN WHOLE OR PART WITHOUT
WRITTEN CONSENT FROM THERMACO, INC. POSSESSION OF THIS DRAWING DOES NOT CONSTITUTE THE RIGHT TO MANUFACTURE.
POSSESSION OF THIS DRAWING DOES CONSTITUTE AN IMPLIED NONDISCLOSURE AGREEMENT BETWEEN THERMACO, INC. AND THE HOLDER OF
THIS DRAWING. DO NOT DESTROY THIS DRAWING, IT IS THE SO
LE PROPERTY OF THERMACO, INC. AND MUST BE RETURNED UPON REQUEST.
MATERIAL (UNLESS NOTED)
FINISH (UNLESS NOTED)
646 GREENSBORO STREET
PO BOX 2548, ASHEBORO, NC 27203
VOICE 336-629-4651 FAX 336-626-5739
Decimals
.XX +/- .03
.XXX +/- .015
Unless otherwise specified
Dimensions are in inches
Tolerances
Angular
+/- 1
°
CHECKED
SIZE
REV. NO.
DWG NO.
PART NO.
C
SCALE
RELEASE DATE
ENGINEERING
DRAWN
DATE
2 in [50mm] PIPE
INLET/OUTLET
END VIEW
GC-10
GREASE COLLECTOR
7.4 QUART [7L]
CAPACITY
OUTLET
INLET
SIDE VIEW
TOP VIEW
8.78 in
[222.9 mm]
7.56 in
[192.0 mm]
2.53 in
[64.1 mm]
VESSEL VENT WITH
1 in NPT CONNECTION
24.20 in
[614.8 mm]
6.00 in
[152.4 mm]
1.50 in
[38.1 mm]
22.25 in
[565.2 mm]
OF TANK REQ
UIRED FOR
STRAINER BASKET AND
COVER REMOVAL
14.29 in
[363.0 mm]
Ø2.375 in
[Ø60.3 mm]
25.53 in
[648.3 mm]
17.88 in
[454.0 mm]
END VIEW
4 in [100mm]
PIPE
INLET/OUTLET
TOP VIEW
8.80 in
[223.4 mm]
19.09 in
[484.8 mm]
2.54 in
24.29 in
[616.9 mm]
VESSEL VENT WITH
1 in NPT CONNECTION
17.85 in
[453.4 mm]
46.00 in
[1168.4 mm]
4.50 in
[
114.3 mm]
1
1
2
2
3
3
4
4
THIS DRAWING CONTAINS PROPRIETARY AND PATENTED MATERIAL. THIS DRAWING MAY NOT BE REPRODUCED IN WHOLE OR PART WITHOUT
WRITTEN CONSENT FROM THERMACO, INC. POSSESSION OF THIS DRAWING DOES NOT CONSTITUTE THE RIGHT TO MANUFACTURE.
POSSESSION OF THIS DRAWING DOES CONSTITUTE AN IMPLIED NONDISCLOSURE AGREEMENT BETWEEN THERMACO, INC. AND THE HOLDER OF
THIS DRAWING. DO NOT DESTROY THIS DRAWING, IT IS THE SO
LE PROPERTY OF THERMACO, INC. AND MUST BE RETURNED UPON REQUEST.
MATERIAL (UNLESS NOTED)
FINISH (UNLESS NOTED)
646 GREENSBORO STREET
PO BOX 2548, ASHEBORO, NC 27203
VOICE 336-629-4651 FAX 336-626-5739
Decimals
.XX +/- .03
.XXX +/- .015
Unless otherwise specified
Dimensions are in inches
Tolerances
Angular
+/- 1
°
CHECKED
SIZE
REV. NO.
DWG NO.
PART NO.
C
SCALE
RELEASE DATE
ENGINEERING
DRAWN
DATE
2 in [50mm] PIPE
INLET/OUTLET
END VIEW
GC-10
GREASE COLLECTOR
7.4 QUART [7L]
CAPACITY
OUTLET
INLET
SIDE VIEW
TOP VIEW
8.78 in
[222.9 mm]
7.56 in
[192.0 mm]
2.53 in
[64.1 mm]
VESSEL VENT WITH
1 in NPT CONNECTION
24.20 in
[614.8 mm]
6.00 in
[152.4 mm]
1.50 in
[38.1 mm]
22.25 in
[565.2 mm]
OF TANK REQ
UIRED FOR
STRAINER BASKET AND
COVER REMOVAL
14.29 in
[363.0 mm]
Ø2.375 in
[Ø60.3 mm]
25.53 in
[648.3 mm]
17.88 in
[454.0 mm]
Grease Removal Systems
W-750-IS Specications
PRODUCT FEATURES
• Fully automatic self cleaning cycle. Removes collected grease & oils from tank without any operator assistance. Comes complete with
24-hour Digital Control and Grease Collector.
• Constructed of corrosion resistant materials suitable for installation in virtually any location. Attractive sanitary Stainless Steel exterior.
• Integrated Motor/Grease Outlet/Heater/Lid enables a fast, do-it-yourself unit operation reversal.
• Patent Pending Advanced Odor Protection design locks in odors from grease and solids.
• Compact footprint.
• Two (2) No-Hub Connectors provided.
END VIEW
SPECIFICATIONS
Construction: Exterior: 304 Stainless Steel, Bright Finish
Injection Molded Polymer
Interior: Rotationally Molded Polyethylene
Electrical: 115 VAC, 50/60 Hz, 1173 Watts (10.2 Amps)*
Electrical Cord Length: 8 feet
Flow Rating: 75 GPM (4.73 l/s)
No. of Skimming Wheels: 1
Skimming Rate: 9 Pounds (4.08 Kg) Per Hour
Grease Retention Capacity: 168.95 Pounds (76.6 Kg)
Internal Solids Strainer Capacity: 3.70 Gallons (14 Liters)
Inlet/Outlet: 4” (100 mm)
Product Weight: 108 lbs (48.9 Kg)
*For Additional Electrical Congurations, see Electrical Variations section on page 2.
39.50 in
[1003.2 mm]
CLEARANCE FROM BOTTOM
OF TANK REQUIRED FOR
STRAINER BASKET AND
COVER REMOVAL
7/19
SIDE VIEW
SIDE VIEW
ggggggg
GC-10
GREASE
2.03 in
[51.6 mm]
©2019 Thermaco, Inc. • All rights reserved • Patented/Patents Pending • Specications subject to change without notice
INLET
Thermaco, Inc. • PO Box 2548 • Asheboro, NC 27204-2548 • (800) 633-4204 • www.big-dipper.com
COLLECTOR
7.4 QUART [7L]
CAPACITY
[1071.5 mm]
42.19 in
Conforms to ASME Standard
ASME A112.14.3 and A112.14.4
17.85 in
OUTLET
25.92 in
[658.3 mm]
21.77 in
[553.0 mm]
16.5 in
[419.1 mm]
®
®
[453.4 mm]
TOP VIEW
46.00 in
[1168.4 mm]
4.50 in
[
114.3 mm]
OUTLETINLET
1

Big Dipper® IS Point Source Automatic
Grease Removal Systems
W-750-IS Specications
17.85 in
[453.4 mm]
6.00 in
[152.5 mm]
6.00 in
[152.3 mm]
INLET
4.00 in
[101.6 mm]
4.00 in
[101.5 mm]
42.36 in
[1076.0 mm]
[152.4 mm]
GC-10
GREASE
CONTAINER
6.00 in
OUTLET
INSTALLATION NOTES
1. READ instruction manual included with system before
installing/operating.
2. Install unit allowing for the minimum clearances shown.
Make sure there is sufcient space above Internal Strainer
access cover to remove the strainer [minimum of 17.75”
(451mm)]
3. Make piping connections with rubber “No Hub” connectors.
4. Keep outlet piping as straight as possible. Use only
“sweep” connections.
5. Install vent on outlet piping.
6. Fill the tank with water before energizing the power to
the motor and heater.
7. Do not install “P” Trap on outlet connection of tank (unit
already has internal gas trap).
8. Do not reduce pipe size on outlet piping
9. Do not pressure test unit.
Equipment must be installed in compliance with all applicable
laws, regulations and codes, including plumbing codes. Instal-
lation should be performed by a qualied plumbing contractor.
JOB SPECIFICATION
Grease and oils separator(s) shall be Thermaco Big Dipper automatic grease/oil recovery system(s) as manufactured by Thermaco, Inc., Asheboro, North Carolina as noted on plans.
AUTOMATIC GREASE REMOVAL DEVICE SPECIFICATIONS
Furnish and install ___ Thermaco Big Dipper Model No. W-750-IS, bright nish type 304 stainless steel exterior, rotationally
molded polyethylene interior automatic self-cleaning grease and oil recovery separator(s) for oor mounted or partially recessed
installation, rated to ASME A112.14.3 and/or PDI-G 101 standards at 75 gallons per minute (4.73 l/s) peak ow, 150 pounds (68
Kg) of grease capacity and including as an integral part of the unit, 4” (100 mm) inlet/outlet, 1 rotating gear oleophilic/hydrophobic
skimming wheel assembly for automatic grease/oil removal, ow control device, self-regulating electric immersion heater with
thermostatic control, 1” (25mm) vessel vent, integral gas trap, digital control for programmable operation, eld reversible motor
assembly and grease/oil sump outlet, quick release stainless steel lid clamps, fully removable integral polymer/304 grade stainless steel lid with magnetic lid tensioners, internal stainless steel strainer basket for collection of coarse solids, polymer wiper
blade unit and a separate gasketted removable grease and oils collection container with carry handle and pouring spout. Electric
assembly shall be tested to comply with pertinent sections of the Standards for Safety ANSI/UL 73 and/or ANSI/UL 1004. Electric
motor equipped with overload protection. Two (2) no-hub connectors for plumbing connection provided.
ELECTRICAL VARIATIONS
W-750-IS: 115V 50/60Hz, 1173 Watts (10.2 Amps) W-750-IS-E: 230V 50/60Hz, 1173 Watts (5.1 Amps)
SUBMITTAL OPTIONS
FS-1 Point Source Flat Strainer (3.4 Gallons of additional solids storage capacity), has 2” inlet/outlet connection
ESU-1 External Strainer (1.16 Gallons of additional solids storage capacity), has 2” inlet/outlet connection
ILS-1 In-Line Strainer (4 Gallons of additional solids storage capacity), has 4” inlet/outlet connection, adjustable 48” legs
SFK-3 Support Frame Kit, stainless steel construction, for use with 55 Gallon Grease Barrel (DRUM-55)
DRUM-55 Grease Barrel with 55 gallon capacity, requires use of SH-3 on each Electrical Assembly
SH-3-KIT Sump Hose Kit for grease trough connection to DRUM-55
AP-6000-1-DR Alarm Probe for 55 Gallon Grease Barrel (DRUM-55) to notify when full of grease
AP-6000-1-DRDC Alarm Probe for 55 Gallon Grease Barrel (DRUM-55) dry contact for remote warning light notication when full
HAG-3 Horizontal Air Gap Assembly with 3” connection (comes with 3 ow restrictors for sink drains)
HAG-BA-1 Solids Strainer Baskets for use with HAG-3 Assembly (Specify Quantity based on Number of Sinks: ___)
©2019 Thermaco, Inc. • All rights reserved • Patented/Patents Pending • Specications subject to change without notice
7/19
Thermaco, Inc. • PO Box 2548 • Asheboro, NC 27204-2548 • (800) 633-4204 • www.big-dipper.com
2