40
STS INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
INSTALLATION
Read all dispersion instructions in this manual, and follow the installation
instructions below:
• Unpack shipment and verify receipt of all Rapid-sorb components
with packing list. Report any shortages to DriSteem immediately. The
components typically include the following:
– Multiple dispersion tubes
– Header
– 3/4" × 2" (19 mm × 51 mm) L-bracket
Note: Dispersion tubes, header, and L-bracket are each tagged with the
customer requested identifi cation number.
– A single duct escutcheon plate the size of the header
– Slip couplings or hose cuffs and clamps
– Accessories such as duct plates, slip couplings, or hose cuffs
– Bolts and washers for mounting the dispersion tubes to the bracket
• L-bracket mounting holes (see note at left):
– L-bracket 50" (1270 mm) long or shorter has a mounting hole 4" (102
mm) from each end for mounting the L-bracket to the duct or air handler
wall.
– L-bracket longer than 50" (1270 mm) has an additional mounting hole
in the center.
Note: Hardware for mounting the L-bracket to the duct or air handler wall
and the hardware for the header support bracket is not provided.
• Select an installation location that provides necessary access in and around
the ductwork or air handler.
• The Rapid-sorb typically is installed centered side to side in a duct, or is
installed across the face of a coil in an air handler.
• The center line of the outer dispersion tubes should never be closer than
4.5" (114 mm) from the side of the ductwork or air handler wall.
• The following instructions are for a typical Rapid-sorb installation —
horizontal-airfl ow duct with Rapid-sorb header either inside or outside
the duct. See the DriCalc Installation Guides library or contact your
representative/distributor or DriSteem for installation instructions for air
handler or vertical airfl ow applications.
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CAUTION
Operate Rapid-sorb within rated steam
capacity
Excessive steam fl ow to the Rapid-sorb
steam dispersion assembly can
cause condensate to exit the tubelets,
which can cause water damage and
standing water in the duct or air
handler.
To avoid condensate exiting the
tubelets, do not operate the Rapid-sorb
beyond its rated capacity.
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Important:
Before marking and
drilling holes in the duct or air handler, refer
to ALL pitch re quire ments for the Rapid-sorb
as sem bly you received (see Table 41-1). The
size, quan ti ty, and location of penetrations
are determined by the dimensions and
confi guration of the Rapid-sorb assembly you
received.
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Dispersion: Rapid-sorb
