43
VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
B
B
90° long sweep or
two 45° elbows
Vaporstream humidifi er
Secure and seal duct
escutcheon plate
Pitch*
Tube pitch 2"/ft (15%)
3/8" (M10) mounting nut
Duct
* Pitch steam hose, tubing or pipe toward humidifi er:
– 2"/ft (15%) when using steam hose
– 1/8"/ft (1%) when using tubing or pipe
DC-1045
Single dispersion tube without condensate drain
Dispersion tube
escutcheon plate
Steam hose, tubing or pipe. Insulate
tubing and hard pipe to reduce steam
loss. Do not insulate steam hose.
Table 43-1:
Dispersion tube escutcheon plate
dimensions
for 1½" tube
for 2" tube
inches
mm
inches
mm
A
1.51
38
2.03
52
B
3.25
83
5.00
127
Table 43-2:
Pitch of dispersion tube(s) and interconnecting piping for Single-tube or multiple-tube evaporative dispersion units*
Condensate drain
Type of interconnecting
piping
Diameter of dispersion
tube and interconnect-
ing piping
Pitch of interconnecting
piping
Pitch of dispersion
tube(s)
Pitch of condensate
drain
Without drain
Steam hose
1½" (DN40)
2"/ft (15%)
toward humidifi er
2"/ft (15%)
toward humidifi er
No drain
2" (DN50)
Tubing or pipe
1½" (DN40)
1/8"/ft (1%)
toward humidifi er
2" (DN50)
With drain
Steam hose
1½" (DN40)
2"/ft (15%)
toward humidifi er
1/8"/ft (1%)
toward
condensate
drain
¼"/ft (2%)
toward fl oor drain or
toward humidifi er if
humidifi er is below
dispersion unit
2" (DN50)
Tubing or pipe
1½" (DN40)
½"/ft (5%)
toward humidifi er
2" (DN50)
¼"/ft (2%)
toward humidifi er
* When piping over an obstruction, see the drip tee installation illustration on Page 41.
A
(diameter)
INSTALLATION
Dashed lines indicate provided by installer
Single tube and multiple tube
Dispersion:
FIGURE 43-1: SINGLE TUBE DISPERSION WITHOUT CONDENSATE DRAIN
