Piping Diagrams: Steam, Water And Drain - VAPORSTREAM VLC Installation Instructions And Maintenance Operations Manual
Electric steam humidifiers
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PIPING DIAGRAMS: STEAM, WATER AND DRAIN
Standard Unit (Non-DI/RO Water)
OM-633
DI/RO Water Unit
OM-634
Alternate Water Seal and Drain Valve Piping (by installer)
Used when water seal must be elevated above flow line of drain connection (humidifier near floor)
Solenoid Water
Make-up Valve
OM-635
Clean-out Plate
Drain Connection
Manual or Optional Electric Drain Valve
* Refer to local codes for drain pipe sizing and maximum temperature requirements.
16
Clean-out Tray
Heaters
Three Probe Level Control
and Low-Water Cut-off
Clean-out
Plate
Heaters
Float Operated
Low-Water Cut-off
Note: Drain piping material must be suitable for 212°F (100°C) water.
Needle
Valve
Water Skim/
Overflow Outlet
Water Supply Line,
25 psi minimum,
(172 kPa)
Field installed for
clean-out
Air Gap
*
Open Drain
Solenoid Water Make-up Valve
Needle Valve
Water Skim/Overflow Outlet - ¾" (20 mm)
Water Supply Line (25 psi minimum)
Manual or Optional Electric Drain Valve
Drain and Water Seal Piping - ¾" (20 mm)
(by installer)
H
Air Gap
Drain
Open Drain
Connection
Float Operated Water
Make-up Valve
Overflow - ¾" (20 mm)
¼" (6 mm) NPT Water Supply,
25 psi minimum, (172 kPa)
Drain and Water Seal
Piping - ¾" (20 mm)
(by installer)
H
Air Gap
Open Drain
¾" (20 mm)
SST Drain Valve
Table 16-1: Water Seal Height (H)
Recommendations
H
U
Note: Flow
Line of Water
Seal cannot
be above Flow
Line of
Skimmer
Note: If piping to dispersion tube is over 20 feet (6
Outlet
meters) increase water seal height by 15%.
*
*
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