User Manual

Serengeti-IR
™
Installation, Operation & Service
Combustion Research Corporation Page 9
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 APPLICATIONS
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.
SUSPENSION: SEISMIC RESTRIANT