©2018 Thermaco, Inc. All rights reserved • Patented/Patents Pending • Specifications subject to change without notice
Thermaco, Inc. • 646 Greensboro St. • Asheboro, N. C. 27204-2548 • (336) 629-4651
MNL-TZ-1826 15
A THERMACO® Technology
Trapzilla
®
Grease Interceptor
Installation and Operations Manual
TZ-1826 Models
AEF
MNL-TZ-1826 14
4.3.4 Installation of Pipe Hangers with Above-Ground Units
Trapzilla units installed indoors, above-ground require the use of pipe hangers (purchased separately)
to properly support plumbing and reduce stress on connections with unit. Thermaco recommends the
use of four (4) Zinc-plated Steel Loop Style hangers with 1000 lbs. work load limit for a single Trapzilla
installation with two (2) hangers placed before inlet side cleanout and two (2) hangers placed after final
cleanout.
Place each pair of hangers 35” apart (space-permitting) and no closer than 5” from any joint. When
multiple units are installed place one (1) additional pipe hanger in between each unit, leaving 5” distance
from unit and cleanout. Follow pipe hanger manufacturer’s instructions for physical installation.
5. In-Ground Installation Instructions
5.1 Plumbing Instructions for Single TZ-1826 Installed In-Ground
A Trapzilla unit may also be installed in the ground inside or outside of the facility. For instances
where the facility drainage piping requires an extension collar that is more than the 18” provided
by the built-in extension, the ECA-TZ-29 Extension Collar Assembly may be installed to align the
Trapzilla inlet with the drainage piping. Thermaco, Inc. strongly recommends surrounding the
in-ground Trapzilla with concrete to provide additional structural strength and to offset buoyancy
effects. For Buoyancy Calculations & suggested concrete fill quantities please see page 17.
In-Ground Installations inside of a building must have a vessel vent installed and be piped to
atmosphere.
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 qualified plumber.
Outlet Vent -
extend to grade
and cover or con-
nect to facility
Vessel Vent -
to atmosphere
Built-in 18”
extension collars
Trapzilla cover -
placed on top-most
extension collar, to
be accessible from
ground level
Grade
Two-way cleanout
before and after
each unit, extend to
grade.
Concrete surround-
ing unit body and
extension collar.
Inlet
Outlet
5/8”-11 Rods
Loop-Style
Pipe Hanger
35” between
hangers
5” between hangers
and any joints
Unit must be supported by
Trapzilla Support Stand Assembly.
No Trapzilla unit may be hung
using pipe hangers.
