© STULZ GmbH, Hamburg
DE / 06-2016 / 1000687
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65
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STULZ UltraSonic -System for duct humidification ENS 14 A - 18 A-
Operation
9.2.
Booster fan (optional)
9.2.1. Description of booster fan
UltraSonic air humidifiers are frequently installed in air ducts and air handling units. If infinitely adjustable
fans are used in air handling units, the air speed may fall below 1.5 m/s, which is the minimum permitted
for the UltraSonic air humidifier. Then, the mist generated can no longer be expelled from the unit.
The booster fan must be used in these cases. This fan generates the necessary airflow to carry the mist.
The booster fan expels mist out of the humidifier whenever the latter is operating with a minimal airflow.
This ensures that function can continue, even if the air speed falls below the minimum level of 1.5 m/s.
The booster fan is fitted to the back of the ENS 14-18 humidifier with the supplied brackets.
9.2.2. Booster fan technical data
Booster fan model
14 IF
18 IF
Air output (m
3
/h)
400
400
Number of fans
2
2
Operating voltage (V AC)
48
48
Frequency
50/60
50/60
Capacity
2x 34W
2x 34W
Dimensions HxWxD (mm)
190x785x150
190x950x150
Dimension P (mm)**
730
895
Weight (kg)
5
6
Fan type
Tangential (cylindrical fan)
Material
1.4301 (X5Cr Ni18-10)
Application limits
Voltage
48 V ± 10%
Air humidity
< 90% RH
Temperature
+5°C to +40°C
Not suitable for aggressive or dusty air or air containing chemicals!
* See drawing "4.6. Dimensional drawing" on page 17.
Summary of Contents for ENS 14 A
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