Specifications

11
VAPORMIST INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Piping:
INSTALLATION
Unions by installer
Strainer, by installer
3/4" pipe thread (DN20) tank
drain, and P-trap piping, rated
for 212 °F (100 °C). If piping
run is over 10' (3 m) increase
pipe to 1¼" (DN32) after P-trap.
1" (25 mm) air gap
Spill funnel. Plumb
to floor drain
Frame drain
Cover
Install plumb
DC-1139
First 3' (1 m) of water supply line
should be stainless steel tubing with
a 2" (50 mm) water seal or loop in
the supply line to isolate steam from
nonmetallic supply piping.
2" (50 mm)
12" (300 mm)
Notes:
• Locate air gap only in spaces with adequate temperature and air movement to absorb flash steam; otherwise, condensation may form on nearby
surfaces. Refer to governing codes for drain pipe size and maximum discharge water temperature.
• Offset humidifier from spill funnel or floor drain to prevent flash steam from rising into the cabinet.
• Dashed lines indicate provided by installer.
• The water supply inlet is more than 1" (25 mm) above the overflow port, eliminating the possibility of backflow or siphoning from the tank. No
additional backflow prevention is required; however, governing codes prevail.
• Install a union in the water supply and drain lines as shown to allow tank removal.
• Damage caused by chloride corrosion is not covered by your DriSteem warranty.
Open drain required.
See first note below.
3/4" pipe thread (DN20) frame drain
and P-trap piping, rated for 212 °F
(100 °C)
Steam hose (maximum run 10' [3 m]). May also use tubing.
See the DriSteem Design Guide for maximum tubing lengths.
mc_042710_1328-VM
Water supply line:
• ¼" NPT (DN8) connection size
• 25 to 80 psi (175 to 550 kPa)
required water pressure.
RO/DI water option
FIGURE 11-1: VAPORMIST (RO/DI WATER OPTION) FIELD PIPING OVERVIEW