Liebert Hiflex - Page 107

Hiflex
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11.4 - Humidification and dehumidification system
The humidification system needs the installation of
the electronic humidifier HUMIDAIR.
The dehumidification function, currently supplied
when the humidifier option is installed, is obtained by
switching on the compressor and reducing the fan
speed, with a consequent reduction of the air flow (in
the models A and W) or completely opening the
3-way valve of the refrigerated water (in the models
C).
Humidity electronic control
The software of the microprocessor control Hiromatic includes the algorithm which controls the electronic
modulating humidifier HUMIDAIR and provides for the dehumidification function.
There is also a special function which automatically excludes the dehumidification function if the tempera
ture decreases under the required values; when the temperature reaches the correct values, the dehumid
ification function is automatically restored.
The dehumidification control can be of the proportional or on-off type, depending on the requirements
for any installation; the on-off system is set by the manufacturer as standard.
Electric steam humidifier HUMIDAIR
HUMIDAIR is a steam cylinder with immersed electrodes which
enables the production of the necessary steam quantity.
It can use any sort of water (with different hardness), provided that
it is not treated or demineralized. It produces almost instanta
neously particle-free clean steam, making electric current pass
through the water contained in the plastic cylinder that can be re
placed, avoiding energy losses typical of other systems. HUMI
DAIR is provided with the steam cylinder, water inlet and outlet
valves, max. level sensor. The steam output can be adjusted within
a range of values that can be selected manually and are set by the
manufacturer at 70% of the max. power (see relevant features).
Features of the electronic humidifier
The steam cylinder is installed outside the air flow so as to avoid heat losses; the steam is mixed with the
delivery air of the evaporating coil by the suitable distributor.
The Hiromatic control can determine when the cylinder must be replaced.
The replacement is quite simple and quick. A self-adaptive flow control system is installed as standard
and controls the current passing through the cylinder water.
HUMIDAIR HAK53H is used for applications at 400 Volt, the model HAK53L, instead, is for 230 Volt.
HIFLEX
MODEL
HUMIDAIR
MODEL
MAIN
POWER SUPPLIES
SETTING
BAND
NOMINAL
CURRENT
NOMINAL
POWER
MODEL
MODEL
POWER
SUPPLIES
[kg/h] [A] [kW]
4-5 HAK21L 230 V/1 ph/50-60 Hz 0.6-2.0 6.5 1.5
6-8-7-9 HAK53H 400 V/3 ph/50-60 Hz 1.3-4.5 5.0 3.4
6-8-7-9 HAK53L* 230 V/3 ph/50-60 Hz 1.2-4.2 8.2 3.1
* Special configuration on request.