Specifications

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Bracket under evaporating
chamber allows easy
removal for cleaning
Removable
evaporating
chamber
Water fill
access hole
Incoloy alloy-sheathed
immersion heaters
Keyholes
for wall
mounting
Water fill
Electrical area
Skimmer port
and overflow
drain
Electrical conduit knockouts
Flexible vapor hose, pipe, or
tubing connects to dispersion
tube(s) or to an SDU
Duct
Single
dispersion
tube with
condensate
return line
Figure 2-3:
Installation overview (Vapormist standard water model shown)
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Vapormist
®
standard water models control water levels with an
electronic probe
Vapormist® standard water models (shown above) require supply
water conductivity to be least 100 μS/cm to operate. These models
use an electronic probe to monitor water levels (see Figure 2-1).
Standard water models will not operate with water treated by
reverse osmosis (RO) or deionization (DI) processes.
Vapormist-DI models control water levels with a float valve
Vapormist-DI models are designed specifically for use with DI/
RO water. These models use a float valve to control water levels
(see Figure 2-2). Vapormist-DI models will not operate with
standard (potable) water.
Convert to a different water type in the field
Vapormist standard water models can be converted in the field
for use with DI/RO water. Vapormist-DI models can be converted
in the field for use with potable or softened water. Contact
your DRI-STEEM® representative or distributor for parts and
instructions.
OM-82-4
Systems using tap or softened water control
water levels electronically using a three-rod
probe. The controller responds with the
above actions when the water level reaches
each rod.
Fill valve closes
Fill valve opens
Low-water cutoff
Figure 2-1:
Water level control for standard
water systems
VLC-OM-030
Figure 2-2:
Water level control for DI/RO
water systems
Supply water connection
Float rod
Float ball
OM-7396
Note:
See Pages 8 and 9 for detailed installation
drawings.
Systems using deionized (DI) water or water
that has been treated through reverse
osmosis (RO) control water levels using a
float valve and low water cutoff switch.
VM-IOM-1108.pdf 4 4/21/2010 1:36:19 PM