46
VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Duct
Vaporstream
humidifi er
½" (DN15) O.D. condensate drain tube, pitch
¼"/ft (2%)
Condensate drain tube provided by installer, ¾" (DN20) minimum
Water seal
5" (127 mm)
90° long sweep or two
45° elbows
6"
(152 mm)
1" (25 mm)
air gap
¼" (DN8)
pipe thread
DC-1048a
Mounting nut, 3/8" (M10)
Pitch tube toward drain
1/8"/ft (1%)
Steam hose or tubing
Pitch*
* Pitch steam hose or tubing toward humidifi er:
– 2"/ft (15%) when using steam hose
– ½"/ft (5%) when using 1½" tubing
– ¼"/ft (2%) when using 2" tubing
Secure and seal
escutcheon plates
Open drain required.
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.
Multiple dispersion tubes
with condensate drains
Single tube and multiple tube
Dashed lines indicate provided by installer
INSTALLATION
Dispersion:
FIGURE 46-1: MULTIPLE TUBE WITH CONDENSATE WASTED TO FLOOR DRAIN
Dispersion tube