Omega II
®
Installation, Operation & Maintenance
Page 10
Combustion Research Corporation
SEISMIC RESTRAINT 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 hangers 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 Applications
” below for
details. If there are any questions regarding what method
is best suited for your application consult your sales
representative or contact the factory. 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.
SEISMIC RESTRAINT FOR HIGH WIND APPLICATION
In high wind conditions it is recommended that seismic
restraints and reflector retention wire be installed. See
details below for recommended installation of seismic
restraint and anti sway retention chains (wire rope). The
vertical threaded rod shall be attached and suspend the
reflector hangers at intervals of eight to ten feet (8' - 10').
At least one vertical threaded rod shall be placed at every
elbow and/or tee connection. The threaded rod is used to
prevent the system from lifting during high wind conditions,
the chain or wire rope will keep the system from swaying
from side to side. When connecting 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.
Punch or drill a small hole (approximately 1/8”) in the reflector near the
reflector hanger. Insert an appropriate length of 14 Ga. galvanized
wire through this hole and encircle the combination hanger. Maintain
a loose loop around the hanger, this will allow for expansion of the
system. Twist the ends of the wire together and trim as required. This
retention wire may be installed on either sides, or edges of the
reflector for severe wind conditions
.
30° MIN.
45° MAX.
30° MIN.
45° MAX.
Seismic Restraints
Use chain or min. 1/8”
aircraft cable
30° Min.
45° Max.
30° Min.
45° Max.
Install the cable clamp
approximately 3” from the
edge of the reflector.
Clamp tight to prevent
chains or cables from
sliding on hanger
30° Min.
45° Max.
30° Min.
45° Max.
Summary of Contents for Omega II
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