Page 12 • DRI-STEEM Ultra-sorb Steam Dispersion Panel Installation, Operation, and Maintenance Manual
I n s t a l l a t i o n
Elbow
Duct
Air flow
Air flow
Ultra-sorb
Ultra-sorb
Duct split
Ultra-sorb
Air flow
Drip pan
Pipe to drain size as required
Ceiling line
Vapor absorption
area
* This length of duct should have sealed seams and
should be at least three times the height of the
Ultra-sorb panel.
Ceiling line
Ultra-sorb
A'
Air flow
Blower
Installation in a cold air stream
When a humidifier is installed in a duct that will carry cold air
periodically, determine the dew point temperature.
If the psychrometric chart reveals that saturation may occur, protec-
tion should be provided. A high limit humidistat or thermostat set to
cut off the humidifier at a safe temperature can be used for this purpose.
Placement upstream of an elbow or duct split
Due to the rapid steam absorption performance of the Ultra-sorb
panels, installation upstream from elbows or duct splits can be done
with confidence. However, all mechanical equipment is subject to
accidental failure. Therefore, if the installation is above expensive
or irreplaceable objects, a galvanized drip pan should be installed to
prevent accidental spillage. See Figure 12-3.
Installation above valuable equipment
Water piping and humidifiers should not be installed above
expensive equipment. A leaking water pipe, condensation, or
other accidental water spillage could cause serious damage to the
equipment below.
When such an installation cannot be avoided, install a galvanized
drip pan under the humidifier, valve, etc. to catch and drain away
the spill.
The condensate from the Ultra-sorb panel should be piped as
shown on Page 16 and should not be discharged into the pan.
Recirculation unit
In an application where no duct system exists, or if the duct air is
too cool for proper humidity absorption, a recirculation fan can be
used. The fan circulates room temperature air across the humidifier
and discharges humidified air into the space. Select the air discharge
point carefully to avoid condensation on surfaces of the building or
equipment. See Figure 12-4.
OM-178
Figure 12-2:
Upstream placement
Non-wetting
distance from
Figure 22-2
OM-198
Figure 12-3:
Installation above valuable equipment
2" (50 mm)
Figure 12-4:
Recirculation unit
OM-197
Cold
air flow
Ultra-sorb
Extended trails of
fog may develop
High limit duct humidistat
to be mounted 10-15 feet
downstream of Ultra-sorb
Figure 12-1:
Installation in cold air stream
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