THERMA Big Dipper W-250-IS Instruction manual

©2005 Thermaco, Inc. • All rights reserved • Patented/Patents Pending • Specifications subject to change without notice
4/05 Thermaco, Inc. • PO Box 2548 • Asheboro, NC 27204-2548 • Phone: [phone] • Online: www.big-dipper.com 1
Big Dipper® Point Source Automatic
Grease Removal Systems
W-250-IS Specifications
24.5”
17.5”
8.75”
14.75”
25.5”
10.5” 10.5”
19.5”
28.5”
24.5”
2” PIPE
INLET/OUTLET
INLET OUTLET
INLET OUTLET
GC-6
GREASE
COLLECTOR
6 QUART
CAPACITY
END VIEW SIDE VIEW
TOP VIEW
MOTOR/TIMER
ENCLOSURE
TECHNICAL DATA
Materials:
Electrical:
Maximum Inlet Flow Rate:
Number of Skimming Wheels:
Skimming Rate:
Grease Retention Capacity:
Internal Solids Strainer Capacity:
Exterior: 304 Stainless Steel, Bright Finish
Interior: Rotationally Molded Polyethylene
115 VAC, 60 Hz, 520 Watts (4.5 Amps)
25 GPM
1
20 Pounds Per Hour
50+ Pounds
1.16 Gallons
14” CLEARANCE FROM
TOP OF TANK REQUIRED FOR
STRAINER BASKET & LID REMOVAL
®
FEATURES:
• Fully automatic self cleaning cycle. Removes collected
grease & oils from tank without any operator assistance.
Comes complete with 24-hour timer 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.
• Compact footprint.
• Two (2) No-Hub Connectors provided.

©2005 Thermaco, Inc. • All rights reserved • Patented/Patents Pending • Specifications subject to change without notice
4/05 Thermaco, Inc. • PO Box 2548 • Asheboro, NC 27204-2548 • Phone: [phone] • Online: www.big-dipper.com 2
Big Dipper® Point Source Automatic
Grease Removal Systems
Install “P” trap on outlet connection
of tank. (Note: the unit already has
an internal gas trap).
DONʼT . . . Reduce pipe size on outlet piping.
DO . . .
Allow a minimum of 14” 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.
Make sure the height above the
Internal Strainer Access Cover is
enough to remove the strainer.
Make piping connections with rubber
“No Hub” connectors (provided).
Keep outlet piping as straight as pos-
sible. Use only “sweep” connections.
Install vent on outlet piping.
Fill the tank with water before ener-
gizing the power to the motor and
heater.
Set Programmable Time Controller for
proper operating times.
INSTALLATION INFORMATION
Note:
Installations must comply with
all applicable local, state, and
national codes for your area.
Suggested Minimum Footprint Dimensions
W-250-IS Specifications
4”
8.75”
8.75”
7”
4”
6” 6”
25.5”
Job Specification:
Grease and oils separator(s) shall be Thermaco Big Dipper automatic grease/oil recovery system(s) as manufac-
tured by Thermaco, Inc., Asheboro, North Carolina as noted on plans.
Separator Specifications:
Furnish and install ___ Thermaco Big Dipper Model No. W-250-IS, bright finish type 304 stainless steel exterior,
rotationally molded polyethylene interior automatic self-cleaning grease and oil recovery separator(s) for floor mounted
or partially recessed installation, rated at 25 gallons per minute peak flow, 50 pounds 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 flow control device, self-regulating enclosed electric immersion heater, a vessel vent, an integral gas trap, an
integral programmable 24-hour multi-event time control, a field reversible motor location, a field reversible grease/
oil sump outlet, quick release stainless steel lid clamps, a gasketted and fully removable 304 stainless steel lid, a
hinged lift-out strainer basket access, an internal stainless steel strainer basket for collection of coarse solids, and a
separate grease and oils collection container. 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 shall be equipped with thermal overload
protection with automatically resettable switch. Two (2) no-hub connectors for plumbing connection provided.
INLET OUTLET
GC-6 GREASE
COLLECTOR