
Page 6 • DRI-STEEM Vapormist humidifier
Vapormist components
Figure 6-2:
Vapormist components
1. Vapor-logic4 controller
Vapor-logic4 controls all humidifier functions and can connect
to a building automation system via Modbus or optional
BACnet MS/TP or LonTalk. See Page 4 for more information.
2. Water level control
Tap or softened water systems control water levels electronically
using a three-rod probe (Figure 7-1).
DI/RO water systems control water levels using a float valve
(Figure 7-2) and low-water cutoff switch.
3. Drain
Duration and frequency of draining are user adjustable. To
avoid possible stagnant water and microbial growth, the
humidifier automatically drains if there is no call for humidity
after a user-defined time period (72-hour default).
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OM-402-2
Figure 6-1:
Vapor-logic4 keypad/display
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