Installation guide

DRI-STEEM GTS Humidifier Installation, Operation, and Maintenance Manual • Page 45
Installation
General Rapid-sorb installation instructions
• Before you begin installation, read all dispersion instructions in
this manual.
• Before you begin installation, unpack shipment and verify receipt
of all Rapid-sorb components with packing list. Report any
shortages to DRI-STEEM factory immediately. The components
typically include the following:
– Multiple dispersion tubes
– Header
– ¾" × 2" (19 mm × 51 mm) L-bracket
– 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 are
in a plastic bag.
– The bolts and washers for mounting the dispersion tubes to the
bracket will be in the end of the tubes or packaged in a bag with
the other accessories.
– The tubes, header, and L-bracket are tagged with the customer
requested identification number written on each component.
• When choosing a location for installation, select a 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.
• Rapid-sorbs are provided with an L-bracket for installation:
– L-brackets that are 50" (1270 mm) or less in length have a hole
4" (102 mm) in from each end to mount the L-bracket to the
duct or air handler wall.
– L-brackets that are greater than 50" (1270 mm) in length have
an additional hole in the center of the L-bracket.
–
Important: Before marking and drilling holes in the
duct or air handler, refer to ALL pitch requirements for the
Rapid-sorb assembly you received (see the table on Page 46).
The size, quantity, and location of penetrations are determined
by the specific dimensions and configuration of the Rapid-sorb
assembly you received.
– Note: The hardware for mounting the L-bracket to the duct
or air handler wall and the hardware for the header support
bracket is not provided.
• The Rapid-sorb instructions that follow are for the most
typical Rapid-sorb installations — installed in a duct horizontal
airflow with Rapid-sorb header either inside or outside the
duct. See the Dri-calc Installation Guides library or contact
your representative/distributor or DRI-STEEM for installation
instructions for air handler or vertical airflow applications.
CAUTION!
Failure to follow the recommendations in
this section can result in excessive back
pressures on the humidifier. This will result
in unacceptable humidification system
performance such as leaking gaskets, blown
water seals, erratic water level control, and
spitting condensate from the dispersion
tube(s).
Table 45-1:
Rapid-sorb dispersion tube capacities
Tube capacity Tube diameter
lbs/hr kg/h inches DN
≤ 35 ≤ 16 1½ 40
36-70 17-32 2 50
Table 45-2:
Rapid-sorb header capacities
Header capacity Header diameter
lbs/hr kg/h inches DN
≤ 250 ≤ 113 2 50
251-500 114-227 3 80
501-800 228-363 4 100
Dispersion:
Rapid-sorb