41
VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Notes:
•
Locate air gap only in spaces with adequate temperature and air movement to absorb fl ash
steam; otherwise, condensation may form on nearby surfaces. Refer to governing codes for
drain pipe size and maximum discharge water temperature.
• Support steam hose so there are no sags or low spots.
• Dashed lines indicate provided by installer.
DC-1166
Vaporstream humidifi er
Open drain required. See fi rst note below.
¾" (DN20)
Tubing or pipe drip tee, by installer.
DriSteem part numbers for 304 stainless steel
in-line tees:
• 1½" diameter (DN40): No. 162710
• 2" diameter (DN50): No. 162712
1" (25 mm) air gap
8" (200 mm) minimum
6" (150 mm) minimum
To dispersion assembly
Insulate tubing and hard pipe
to reduce steam loss
90° long sweep or two
45° elbows
Obstruction
Pitch
INSTALLATION
Drip tee installation
Install a drip tee as shown in Figure 40-1 when:
• Humidifi er is mounted higher than the dispersion assembly,
• Interconnecting hose or piping must go over an obstruction, or
• Interconnecting piping runs are long.
Important:
Steam hose must be supported to prevent sagging or low spots.
Dispersion:
FIGURE 41-1: DRIP TEE INSTALLATION (PIPING OVER AN OBSTRUCTION)