DRI-STEEM XT Series Electrode Steam Humidifier Installation, Operation, and Maintenance Manual • Page 33
6" (152 mm)
Point tubelets (steam orifices)
perpendicular to airflow
Duct
Vapor hose,
tubing, or pipe
XT Series humidifier
Airflow
Dispersion tube
Slip coupling or hose cuff
90° long sweep or
two 45° elbows
Support bracket
5" (127 mm)
¾" pipe thread
(DN20) drain
¾" (DN20) copper
1" (25 mm) air gap
Open drain required.
Locate air gap only in spaces with adequate
temperature and air movement to absorb flash
steam; otherwise, condensation may form on
nearby surfaces. Refer to governing codes for
drain pipe size and maximum discharge water
temperature.
Position L-bracket so that flange is upstream of
dispersion tubes. This drawing shows the L-bracket
positioned for airflow back to front
Pitch header
toward drain
1/8"/ft (1%)
Secure and seal
escutcheon plate
Assembly and installation instructions for a Rapid-sorb installed
with header inside the duct (horizontal airflow)
1. Locate and cut the holes in ductwork or air handler for steam
header penetration, condensate drain piping, and header support
bracket fastener. Allow 1/8"/ft (1%) header pitch toward the
support bracket when you drill the hole for the header support
bracket fastener.
2. Loosely fasten the header in place.
3. Rotate the header 90° so the header stubs point horizontally in
the duct.
• When installing in an air handler, the rotation of the header
is often less than 90°. Typically, due to the condensate drain
piping requirements, the header can be set on the floor of the
air handler, assembled in the vertical position, and then raised
and mounted in place.
4. Mount the dispersion tubes on the header with the slip couplings
or hose cuffs.
• When installing slip couplings for 1½" (DN40) dispersion
tubes, take care not to shear the O-rings.
• Set the slip coupling on the header stub or dispersion tube so
the O-ring is resting on the face of the tubing.
More on next page ▶
Dispersion: Rapid-sorb (continued)
OM-7370
Figure 33-1:
Rapid-sorb installed in a horizontal airflow with header inside the duct
Pitch*
Note:
* Pitch vapor hose, tubing, or
pipe toward Rapid-sorb:
– 2"/ft (15%) when
using vapor hose
– 1/8"/ft (1%) when
using tubing or pipe
Adapter
XT_IOM_Jan_2008.pdf 35 11/19/2009 10:13:39 AM
To Next Page
Loading...
