©2005 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-IS6000 10
®
Big Dipper
®
IS System
Plumbing Installation
Locating the Unit
To minimize grease build-up in piping, a Big Dip-
per system should be located as close as possible
to the fixture it is serving. The system should
be visible and easily accessible for maintenance
and inspection. Make sure that adequate room
is provided around the system to allow easy
removal of the grease collection container and
to access the electrical assembly. Make sure
the height above the Big Dipper access cover
is enough to properly service the system.
Inlet/Outlet Piping
The inlet and outlet piping connections require
flexible sleeve pipe couplings. Keep outlet pip-
ing as straight as possible. Use only “sweep”
connections. Do not reduce the pipe sizing
on the outlet piping. Do not install “P” trap on
outlet connection of system. (Note: The system
already has a internal gas trap)
Flow Controls
Big Dipper systems are equipped with an internal
flow control located inside the inlet end of the
system. Verify its location and placement prior
to connecting the inlet piping.
Fill Unit With Water Before Applying
Power
Big Dipper systems, equipped with an electric
heating element, MUST be filled with water before
energizing the power to the system. Failure to
do so may damage the electric heating element.
These elements will NOT be replaced under
Thermacoʼs Limited Warranty.
Venting the Outlet
An outlet vent or approved vacuum breaker of
at least 1/2 the diameter of the systemʼs outlet
connection must be present as close as pos-
sible to the Big Dipper outlet to prevent possible
siphonage problems. Failure to provide a vent
for the system voids Thermacoʼs Limited War-
ranty for the system.
For High Head Height Applications
Over Six (6) Feet (1.95 m)
For installations where there is head height of
greater than 6 feet (1.95 meters), Thermaco, Inc.
recommends installation of the optional VFCA
Vented Flow Control. Thermaco, Inc. recom-
mends an inlet vent on the piping connection
as close a possible to the inlet of the Big Dipper
and tied in to the facility vent. Please see the
following page for installation instructions.
Do Not Use With Food Grinders, Potato
Peelers or Waste Disposal Units
Installations where the internal solids strainer
basket is not used or where the system is
connected to a Waste Disposal Unit, Garbage
Grinder or potato peeler will void Thermacoʼs
Limited Warranty for the system.
Note: This equipment must be
installed to comply with all
applicable national, state, and local
plumbing codes for your area.
Installation should only be
performed by a qualified plumber.
Big Dipper
®
IS System Plumbing Installation
