Field Controls Electronic Steam Unit - Power S2000 - Manual (Page 5)

8.00”
6.00”
7.
50
”
8.25”
10.
50”
11.
60”
the room needed to install the unit in a certain location. The data can also be used to determine the minimum duct size the
Steam Humidifier can be inserted into. The Steam Humidifier should not obstruct more than 25% of the cross sectional area of
the selected duct. For Example: The humidifier tank measures 8 inches wide (including the flange) times the length of 11.6
inches=92.8 square inches. We are only concerned with the obstruction on a flat plane. Which is why the flange is taken into
account but not the depth of the tank. This assumes an up-flow configuration. If the configuration is horizontal, then the Steam
Humidifier will obstruct approximately 70 square inches of duct area. The tank flange is no longer a factor.
At 92.8 square inches, the smallest duct plenum that can accommodate the Steam Humidifier mounted internally would be
approximately 20” by 19”. 20x19=380 square inches multiplied by .25 = 95 square inches.
Steam Humidifier square inches of obstruction= 92.8 square inches. Up-flow configuration.
25 percent of 20x19 duct= 95 square inches.
Steam Humidifier square inches of obstruction= 69.6 square inches. Horizontal-flow configuration.
25 percent of 12x24 duct=72 square inches.
In either case, avoid installing the Steam Humidifier on any duct size where the unit will consume more than 25% of the cross
sectional area of the duct at the point of insertion. Doing so may result in turbulent airflow, lower velocities and condensation
inside the duct. Avoid all of these conditions by selecting an “under the duct” location and specify the SC100 decorative tank
cover to give it a finished look.
6.0
0”
Figure 12.
5
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Field Controls Steam Humidifiers
Model S2000 & S2020
Dimensional Data
Figure 12 reflects the basic dimensions of the S2000 or S2020 Steam Humidifier. This data is useful in determining