2
VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
FIGURE 2-1: VAPORSTREAM SYSTEM EXAMPLE, TAP/SOFTENED WATER
Product overview
TAP/SOFTENED WATER
Vaporstream humidifi ers with tap/softened water (shown above) use electricity
to heat tap or softened fi ll water into steam for humidifi cation. A conductivity
probe monitors the water level; therefore, water conductivity must be at least
30 μS/cm for proper operation. Vaporstream with tap/softened water will not
operate with RO/DI water. For RO/DI water, use Vaporstream with the RO/DI
water option.
RO/DI WATER OPTION
Vaporstream humidifi ers with RO/DI water systems (systems using deionized
water or water that has been treated using reverse osmosis) use electricity to
heat RO/DI fi ll water into steam for humidifi cation. Water level is controlled
with a fl oat valve and low water cutoff switch. Float valves are compatible with
RO/DI water only.
Humidifi ers with the RO/DI water option are virtually maintenance free and
require little or no downtime.
Table 2-1:
DriSteem supply water guidelines
Chlorides*
RO or DI water
Softened water
Tap water
* Damage caused by chloride
corrosion is not covered by
your DriSteem warranty.
< 5 ppm
< 25 ppm
< 50 ppm
Total hardness
Tap water
< 500 ppm
pH
RO, DI, or softened water
Tap water
7 to 8
6.5 to 8.5
Silica
< 15 ppm
You may wish to take action to mitigate
potential negative effects to your humidifi er.
Supply water outside of these guidelines may
void your DriSteem warranty. Please contact
your DriSteem Representative or DriSteem
Technical Support if you need advice.
Supply water guidelines
Supply water quality is an important component
of humidifi er reliability and maintenance.
Examples:
•
Corrosive water can decrease the service life
of the humidifi er.
•
Excessive water hardness can increase the
humidifi er maintenance requirements.
To maximize humidifi er service life and
minimize humidifi er maintenance, DriSteem
has established guidelines for supply water See
Table 2-1.
OVERVIEW
Control cabinet
Probe
Dispersion tube
Duct
Cover
Steam outlet
Skimmer
port outlet
Fill valve
Needle valve
Drain
valve
Cleanout tray
Field drain
connection
Thermal trip
Cover fastener
Field connection terminal strip
Temperature sensor
Heaters
Vapor-logic controller
OM-628
