Specifications

8
AREA-TYPE APPLICATION USING SPACE DISTRIBUTION UNIT (SDU)
The SDU converts a VAPORMIST
®
duct humidifier into
an area-type humidifier. Instead of the steam dispersion
tube being located inside an air duct, the dispersion tube
is built into the fan unit. A fan draws in room air and
blows it across the dispersion tube, where it picks up the
moisture and disperses it into the room.
The space distribution unit can be used on all models;
however, a condensate drain from the dispersion tube is
required in all applications. (See figure 9-1 on page 9.)
Mounting the SDU
The SDU may be placed directly on top of the
VAPORMIST cabinet or it may be mounted on a wall.
A wall mounting bracket and two 3/8" lag bolts are
provided with each fan unit. (See page 4 for mounting
instructions.)
Rise and Carry
As steam is discharged from the humidifier, it quickly
cools and turns to visible, warm, microscopic drops of
water “fog” that are lighter than air. As this “fog” is
carried away from the humidifier by the fan airstream, it
tends to rise towards the ceiling. If this “fog” contacts
solid surface (columns, beams, ceiling, pipes, etc.)
before it disappears, it may collect and drip as water.
This should be considered when locating an Area-Type
steam humidifier. The greater the space relative humid-
ity, the higher and further the fog will carry and rise in the
space before disappearing. The distance the “fog” is
blown and rises before it disappears is given in table 9-1
on page 9.
This optional fan unit mounts on top of
the VAPORMIST cabinet.
Air
Intake
Vents
Air
Discharge
Vent
OM-55
OM-56
If necessary, fan unit can be mounted on a
wall, allowing the VAPORMIST to be
remotely located.
VM-IOM-1996 Scan.pdf 8 11/19/2009 9:57:23 AM