Specifications

Page 36 • DRI-STEEM XT Electrode Steam Humidifier Installation, Operation, and Maintenance Manual
Dispersion:
Rapid-sorb
Installation
OM-7628
Figure 36-1:
Rapid-sorb in a horizontal airflow with header inside the duct
Duct
XT humidifier
Airflow
Slip coupling or hose cuff
WARNING
Hot surface and steam hazard
Dispersion tube, steam hose, tubing, or
hard pipe can contain steam, and surfaces
can be hot. Discharged steam is not
visible. Contact with hot surfaces or air
into which steam has been discharged can
cause severe personal injury.
mc_060110_1555
Header inside of duct, horizontal airflow
1. Mark and cut 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.
Dashed lines indicate provided by installer.
mc_062810_0820-XT
Secure and seal escutcheon plates
90° long sweep or two
45° elbows
¾" (DN20) copper
6" (150 mm) recommended
Header pitch:
1/8"/ft (1%) minimum
1" (25 mm) air gap
5" (125 mm) recommended
Condensate drain ¾" pipe
thread (DN20)
Support bracket
(0.421" [11 mm] mounting holes at
top, bottom, and end)
Pitch (see Note 1)
Notes:
1 Pitch steam hose, tubing, or pipe toward Rapid-sorb:
– 2"/ft (15%) when using steam hose
– 1/8"/ft (1%) when using tubing or pipe
2 Use DRI-STEEM’s hard pipe adapter kit to connect steam outlet to hard pipe. Use a hose clamp to connect steam outlet
to steam hose. Use a hose cuff and clamps to connect steam outlet to tubing.
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.
Steam hose, tubing, or pipe (tubing
or pipe must be grounded).Insulate
tubing and hard pipe to reduce
steam loss. Do not insulate steam
hose. See Table 24-1 for maximum
piping lengths.
See Note 2
L-bracket. Install with flange facing upstream
direction of airflow. Drawing shows L-bracket
correctly positioned for airflow.
Dispersion tube. Orient with
tubelets perpendicular to airflow.