Install Manual
©2017 Thermaco, Inc. All rights reserved • Patented/Patents Pending • Specications subject to change without notice
Thermaco, Inc. • 646 Greensboro St. • Asheboro, N. C. 27204-2548 • (336) 629-4651
MNL-TSS 10
A THERMACO® Technology
Trapzilla
®
Grease Interceptor
Installation and Operations Manual
Trapzilla Solid Separators
AFE
MNL-TSS 9
3.0 Plumbing Installation
3.1 Plumbing Considerations Prior to Installation
3.1.1 Locating the Unit
The system should be visible and easily accessible for maintenance and inspection. Options are
available to install Trapzilla Solids Separators in a basement, suspended from a ceiling or in-ground
in an exterior location. Make sure adequate room is provided around the unit to allow easy access for
a pump truck operator. Make sure the height above the Trapzilla access cover is enough to properly
service the system.
3.1.2 Inlet/Outlet Piping
The inlet and outlet piping connections require exible sleeve pipe couplings. Keep outlet piping as
straight as possible. Thermaco, Inc. recommends installation of Two-Way Cleanouts on both the
Inlet and Outlet of Trapzilla
Interceptors and Solids Separators in accordance with all applicable laws,
regulations and codes. These cleanouts should match the size of the Inlet and Outlet Piping (i.e.
for 4” plumbing, a 4” cleanout should be used). 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)
3.1.3 Flow Controls
Trapzilla Grease Interceptors are supplied with a Low-Head Flow Control module (LHFC). These
modules are NOT INCLUDED WITH TSS models. If a Trapzilla Solids Separator is being installed
with a Trapzilla Grease Interceptor, the LHFC should be connected to the inlet of the Trapzilla Solids
Separator in situations where ow rate needs to be restricted to the ASME rated ow or when vented
ow control is required by local code.
3.1.4 Venting the Outlet
An outlet vent or approved air admittance valve of at least 1/2 the diameter of the system’s outlet connection
must be present as close as possible to the Trapzilla outlet to prevent possible siphonage problems.
The Vent on the Outlet piping is to be installed in accordance with all applicable laws, regulations and
codes. Failure to provide a vent for the system voids Thermaco’s Limited Warranty for the system.
3.1.5 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 a code-approved Vented Flow Control Assembly.
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.
3.2 Vessel Vent Connection
Venting of the Trapzilla tank is recommended by the manufacturer and required for indoor installations.
•Vent the tank through the provided 2” NPT threaded connector on the side of the tank (This vent may
be located above the outlet or on the side of the tank depending on model).
•Remove and discard the 2” plug and connect 2” vent lines as indicated below.
**Models with 6” Inlet/Outlet have 3” NPT vessel vent
1
1
2
2
3
3
4
4
A A
B B
C C
D D
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
SHEET OF
ENGINEERING
DRAWN
DATE
THIRD AN GLE PROJECTIO N
Tank Vent/Air Intake
Must be indepentently vented to atmosphere
NEVER CONNECT TO FACILITY VENT
Can be connected to the outlet vent,
facility vent, or independently vented to
atmosphere










