©2001 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-AST 11
®
AST
Plumbing Installation Instructions
FILL UNIT WITH WATER BEFORE
APPLYING POWER
BIG DIPPER systems, equipped with an elec-
tric heating element, MUST be filled with water
before energizing the power to the system.
Failure to do so will result in the destruction of the
electric heating element. These elements will NOT
be replaced under Thermaco's Limited Warranty.
VENTING THE OUTLET
An outlet vent or approved vacuum breaker
of at least 1/2 the diameter of the system's
outlet connection must be present as close as
possible to the BIG DIPPER outlet to prevent
possible siphonage problems.
Failure to pro-
vide a vent for the system voids Thermaco's Lim-
ited Warranty for the system.
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 Thermaco's
Limited Warranty for the system.
LOCATING THE UNIT
To minimize grease build-up in piping, a BIG
DIPPER 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 sys-
tem to allow easy removal of the grease collec-
tion container and to access the electrical as-
sembly. Make sure the height above the BIG
DIPPER access covers is enough to properly
service the system.
INLET/OUTLET PIPING
The inlet and outlet piping connections re-
quire flexible sleeve pipe couplings. Keep
outlet piping 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 regulator located inside the inlet
end of the system. Verify its location and
placement prior to connecting the inlet pip-
ing. If your code requires a vertical type flow
regulator, an approved control with a flow
rating matching the systems flow rate should
be used.
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.
