Reflect-O-Ray
®
EDS 6
Installation, Operation & Service
Combustion Research Corporation
SEISMIC RESTAIANT SUSPENSION METHODS
For standard seismic restraint such as earthquake prone
areas, install seismic restraint chain or cable as shown
below. If high winds can be encountered in the building,
such as found in airplane hangars where opposing doors
are simultaneously open, or system is installed near or
below the door opening, additional support of the radiant
tube and reflector network will be required. See the
“
Seismic Suspension For High Wind or Outdoor
Applications
” below for details of installation of seismic
restraint and anti sway retention chains (wire rope). In
both standard seismic and high wind applications the
restraints shown shall be installed on reflector hangers at
intervals of 10 – 20 ft. (3 – 6 m). In high wind applications,
at least one vertical threaded rod shall be placed at every
elbow and/or tee connection. Under high wind
applications, the threaded rod is used to prevent the
system from lifting during open door, windy conditions.
The chain or wire rope will keep the system from swaying
from side to side.
When connecting chains or threaded rod to "Z" purlin use
beam clamp or drill a hole through "Z" purlin and secure
with two 3/8" nuts and a lock washer. If the system is a
straight system (no elbows or tee's), apply an anti sway
chain or wire rope which is parallel to the radiant tube at
approximately the middle of the run.
If there are any questions regarding what method is best
suited for your application consult your sales
representative or contact the factory.
STANDARD SEISMIC SUSPENSION
SEISMIC SUSPENSION FOR HIGH WIND APPLICATIONS
Seismic Restraints – Use chain or
1/8” aircraft cable
.
Cable Clamp – Clamp tight to
prevent chain or cable from sliding
on hanger.
30-45°
30-45°
Page 11
Seismic Restraints – Use
chain or 1/8” aircraft cable.
3/8” Jam
Nut
3/8” “U” bolt for threaded
rod. Install at each hanger
location.
Cable Clamp – Clamp
tight to prevent chain or
cable from sliding on
h
“3/8” “U” Bolt
Side View
3/8” Threaded Rod
3/8” Jam Nuts
Adjustable beam
clamp or “U” bolt with
chair anchor
.
Typical Turnbuckle (If
Used). To prevent possible
unwinding use jam nuts.
3/8” Jam Nuts
Extend threaded
rod so that there is
1/8” clearance to
the hanger.
30-45°
Punch or drill a small hole in the reflector near the hanger. Insert 14 Ga.
wire through the hole and encircle the hanger. Twist ends together while
maintaining a loose loop. “Hog Rings” may also be used.
30-45°
