Thermaco W-250-AST User Manual
Big Dipper® IS Point Source Automatic
1
2
3
2.00 in
50.8 mm
17.50 in
444.5 mm
25.50 in
647.7 mm
30.50 in
774.7 mm
8.75 in
222.3 mm
23.08 in
586.1 mm
10.50 in
266.7 mm
22.50 in
571.5 mm
5.35 in
135.9 mm
23.63 in
600.2 mm
Grease Removal Systems
W-250-AST Specications
MOTOR/DIGITAL CONTROL
ENCLOSURE
23.08 in
586.1 mm
2” (50 mm) PIPE
INLET/OUTLET
8.75 in
222.3 mm
23.38 in
593.7 mm
END VIEW
FEATURES:
• Fully automatic self cleaning cycle. Removes
collected grease, oils and solids from unit without
any operator assistance. Comes complete with
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.
• Easy lift grease collector simplifies grease
collection container emptying.
• Compact footprint.
14.75 in
374.7 mm
8.75 in
222.3 mm
14.00 in
355.6 mm
INLET
10.50 in
266.7 mm
28.75” (730 mm) CLEARANCE FROM
BOTTOM OF TANK REQUIRED FOR
FILTER BASKET & LID REMOVAL
GC-7
GREASE
COLLECTOR
8 QUART (7.6 L)
CAPACITY
22.50 in
571.5 mm
OUTLET
SIDE VIEW
25.50 in
647.7 mm
INLETOUTLET
23.63 in
600.2 mm
30.50 in
774.7 mm
TOP VIEW
**
17.50 in
444.5 mm
TECHNICAL DATA
Materials:
Electrical:
Maximum Inlet Flow Rate:
Number of Skimming Wheels:
Skimming Rate:
Grease Retention Capacity:
Eductor Pump Operation Water Requirements:
Exterior: 304 Stainless Steel, Bright Finish
Interior: Rotationally Molded Polyethylene
115 VAC, 50/60 Hz, 535 Watts (4.6 Amps)*
25 GPM (1.6 l/s)
1
20 Pounds (9.08 Kg) Per Hour
50+ Pounds (22.7+ Kg)
50 PSI min., 5 GPM
** Unit supplied with 3’ (915 mm)
Hose & 0.75” (19mm) GH Female
Connection to Connect to Facility-
Supplied Water Supply
(3.45 Bar min., 0.32 l/s)
*For Additional Electrical Congurations, see Electrical Variations section on page 2.
©2015 Thermaco, Inc. • All rights reserved • Patented/Patents Pending • Specications subject to change without notice
6/15
PO Box 2548 • Asheboro, N. C. 27204-2548 • Phone (336) 629-4651 • North America: (800) 633-4204
info@thermaco.com • www.big-dipper.com
1
Big Dipper® IS Point Source Automatic
1
2
3
Grease Removal Systems
W-250-AST Specications
Requirements
INSTALLATION INFORMATION
Suggested Minimum Footprint Dimensions
6.28 in
159.4 mm
4.00 in
101.6 mm
6.00 in
152.4 mm
17.85 in
453.4 mm
6.00 in
152.4 mm
5.71 in
145.1 mm
4.00 in
101.6 mm
INLET OUTLET
GC-7 GREASE
COLLECTOR
Allow a minimum of 14” (356 mm) clearance
from top of tank for removal of unit lid.
READ instruction manual included with system
before doing anything.
Install unit allowing for the minimum clearances
shown.
Provide a min. 50 PSI, 5 GPM (3.45 Bar min.,
0.32 l/s) Water Supply for solids pump operation
Make sure the height above the Internal Strainer
Access Cover is enough to remove the strainer.
Make piping connections with rubber “No Hub”
connectors.
Keep outlet piping as straight as possible. Use
only “sweep” connections.
Install vent on outlet piping.
Fill the tank with water before
energizing the power to the motor and heater.
Set Programmable Digital Control for proper
operating times.
Do Not Install “P” trap on outlet connection of
tank. (Note: the unit already has an internal
gas trap).
Do Not Reduce pipe size on outlet piping.
Job Specication:
Grease and oils separator(s) shall be Thermaco Big Dipper automatic
grease/oil recovery system(s) with Automatic Solids Transfer as manufactured
NOTE: Drawing for reference only. Equipment must be installed in compliance with
all applicable laws, regulations and codes,
including plumbing codes. Installation should
be performed by a qualied plumber.
by Thermaco, Inc., Asheboro, North Carolina as noted on plans.
Separator Specications:
Furnish and install ___ Thermaco Big Dipper Model No. W-250-AST, bright nish type 304 stainless steel exterior, rotation-
ally molded polyethylene interior automatic self-cleaning grease and oil recovery separator(s) for oor mounted or partially
recessed installation, rated at 25 gallons per minute (1.6 l/s) peak ow, 50+ pounds (22.7+ Kg) of grease capacity and includ-
ing as an integral part of the unit, 1 rotating gear hydrophobic wheel assembly for automatic grease/oil removal, an integral
ow control device, self-regulating enclosed electric immersion heater, a vessel vent, an integral gas trap, a digital control for
programmable operation, a eld reversible motor location, a eld reversible grease/oil sump outlet, quick release stainless
steel lid clamps, a gasketted and fully removable 304 stainless steel lid, lift-out lter basket access, an eductor transfer pump
controlled by repeat cycle timer, and a separate grease and oils collection container. Eductor pump shall be supplied with
3’ (915 mm) Hose & 0.75” (19 mm) GH Female Connection for attachment to facility-supplied water supply. Eductor pump
shall be supplied with an approved vacuum breaker. 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-250-AST: 115V 50/60Hz, 535 Watts (4.6 Amps)
W-250-AST-E: 230V 50/60Hz, 535 Watts (2.3 Amps)
©2015 Thermaco, Inc. • All rights reserved • Patented/Patents Pending • Specications subject to change without notice
2
PO Box 2548 • Asheboro, N. C. 27204-2548 • Phone (336) 629-4651 • North America: (800) 633-4204
info@thermaco.com • www.big-dipper.com
6/15
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