Specifications

28
VAPORMIST INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Single dispersion tube
INSTALLATION NOTES
• Use a hose clamp to connect the steam outlet to steam hose. Use a hose cuff
and clamps to connect the steam outlet to tubing.
• Tubing diameter must match Vapormist steam outlet size 1½" (DN40), 2"
(DN50), or NPT connection.
• See the steam carrying capacity and steam loss tables on Pages 19 and 20.
• Orient dispersion tube with tubelets (steam orifices) pointing up.
• If mounting the humidifier above the level of dispersion tube, see “Drip tee
installation” on Page 21.
• Table 28-1 lists hose kit sizes by humidifier model. Note that the capacities of
Models 30 and 34 require multiple tube assemblies and cannot use a hose kit.
For multiple tube assemblies, see “Rapid-sorb,” beginning on Page 30.
mc_062810_1030-NA
Single dispersion tube
without condensate drain
Mounting nut
3/8" - 16 (M10)
Vapormist humidifier
Duct
Secure and seal
escutcheon plates
90° long sweep or two 45° elbows
See the first bullet in
Installation notes.
Tube pitch:
2"/ft (15%)
DC-1447
Pitch*
Steam hose or tubing. Insulate tubing to reduce
steam loss. Do not insulate steam hose. See
Table 19-1 for maximum piping lengths.
Dimension A:
• 3.25" (82.5 mm) for 1½" tubes
• 5" (127 mm) for 2" tubes
Dispersion tube escutcheon plate
OM-351-1
A
A
INSTALLATION
Dashed lines indicate provided by installer.
* Pitch steam hose or tubing
toward humidifier:
– 2"/ft (15%) when using
steam hose
– 1/2"/ft (5%) when
using 1½" tubing
– 1/4"/ft (2%) when
using 2" tubing
WARNING
Hot surface and steam hazard
Dispersion tube, steam hose, or tubing
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
Important:
Failure to follow the recommendations in this
section can result in excessive back pressure 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 dispersion tubes.
mc_060210_0843
mc_062810_0720-VM
Dispersion:
FIGURE 28-1: SINGLE DISPERSION TUBE WITHOUT CONDENSATE DRAIN