HUM-S series
HUM-S series
Ultrasonic humidifiers
Operation manual
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CONTENT
Safety instructions.....................................................................................................................3
Component parts.......................................................................................................................3
Intended use of the product.......................................................................................................4
Operation principle.....................................................................................................................4
Product design...........................................................................................................................5
Dimensions and weight..............................................................................................................6
Technical specifications
.........................................................................................................6
Installation..................................................................................................................................6
Commissioning..........................................................................................................................7
Maintenance..............................................................................................................................8
Troubleshooting.........................................................................................................................9
Attachment ..............................................................................................................................10
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Safety instructions
DanVex HUM series humidifiers meet all European requirements and safety standards.
The personnel authorized to operate and maintain the DanVex humidifiers should read this
operation manual and be instructed regarding safety operation.
Only the persons familiar with the humidifier operating principle are allowed to operate and
maintain it.
Electrical maintenance works on the device may only be carried out by appropriately authorized
and trained personnel.
Electrical components repair works may only be carried out by authorized personnel of a service
center.
The device must not be installed and operated in explosion-hazardous premises.
Before opening any enclosure panels it is necessary to de-energize the humidifier.
The panels should always be closed except for the time when maintenance works are being
carried out.
The humidifier may only be used for the air humidification at atmospheric pressure.
It is not allowed to use the humidifier without filters.
This manual should always be at hand and kept near the humidifier.
The humidifier maintenance and control should be carried out based on a fixed schedule. Only
original spare parts must be used.
Component parts
The following parts are included in the humidifier delivery:
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flow-through coarse mesh filter with replaceable element
remote humidity sensor
nipple 1/2"
hose 1/2" (40 cm long)
filter bracket
filter wrench
stainless self-tapping screw 5х19
3
- 1 pc.
- 1 pc.
- 2 pc.
- 1 pc.
- 1 pc.
- 1 pc.
- 4 pc.
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Intended use of the product
The product is designed for effective and controlled humidification of the air at atmospheric
pressure in the temperature range from +5°С to +40°С. It can either be used as an stand-alone
unit installed inside or outside of the premises to be humidified or together with an air treatment
system.
Some examples of ultrasonic humidification:
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Textile industry - electrostatic charging removal and dust reduction;
Paper manufacturing - electrostatic charging removal and dust reduction;
Server rooms - electrostatic charging removal;
Electronic components production - electrostatic charging removal and humidity
control;
Automotive production - humidity control and dust reduction;
Plastics industry - electrostatic charging removal and dust reduction;
Warehouse premises - humidity control, dust reduction, shelf life increase;
Different purposes laboratories – air humidity control;
Tobacco industry - humidity control and dust reduction;
Fruit and vegetables storage – humidity control;
Green houses, growing rooms, hot houses – maintaining of required humidity level;
Local misting - creation of scenes during filming for environmental simulation (fog,
smoke of gunfire etc.)
Operating principle
Ultrasonic humidification principle is based on two effects superposition:
1. Capillary-wave theory
Ultrasonic generators generate surface Rayleigh waves of a regular shape in a water tank.
Finest water mist originates from the waves crest and is injected into the atmosphere.
2. Cavitation bubbles collapse
Oscillator (transducer) amplitude variation causes strong hydraulic shocks which generate
finest cavitation bubbles. Further collapse of these bubbles results in fine water mist in the
air.
Superposition of the two mentioned effects in ultrasonic humidifiers ensures generation of
uniform water mist with minimum power consumption!
An piezoelectric transducer located in the water layer transforms a high-frequency
signal into high-frequency mechanical oscillations. Since the oscillation speed increases to
the level when water particles are not able to follow the transducer oscillating surface
anymore alternation of high-ratio instantaneous compression and vacuum occurs resulting in
generation of air bubbles (cavitation). At cavitation standing capillary waves are generated,
the finest droplets disrupt the water surface tension and rapidly spread in the atmosphere in
the form of steam and then they are absorbed into the air flow.
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Fig. Water mist generation stages (from left to right):
1. The humidifier is switched on, the transducer (oscillator) membrane is in positive position; 2. Transducer
membrane is in negative position, vacuum is generated due to inertia of the water; 3. After ten
membrane oscillations the humidifier reaches its maximum capacity.
Product design
1. Front removable panel
2. Top removable panel
3. Steam pipe socket
4. Main controller
5. Drain valve
6. Water supply fitting
7. Water overflow fitting
8. Power cable entry
9. Mode selector switch
10. Humidity sensor connector
11. Marking
12. Replacement air filter
Front removable panel: used for air filter replacement; for inspection, maintenance and
repair of the humidifier electrical components;
Top removable panel: used for maintenance of piezoelectric transducers and float valve
system;
Steam pipe socket: used for connection of the output steam pipes (not included);
Main controller: used for display of the current humidity level and for setting of required
humidity level;
Drain valve: used for water draining from the humidifier before maintenance works and
during standstill;
Water supply fitting: used for cleaning oа the supplied demineralized water (pressure of 1-4
atm.);
Water overflow fitting: used for overflow prevention;
Power cable entry: used for the humidifier power supply;
Mode selector switch: used for selection of the humidifier operating mode (switched off –
automatic mode – manual mode);
Humidity sensor connector: used for connection of remote humidity sensor;
Replacement air filter: used for incoming air treatment.
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Dimensions and weight
Model
HUM - 3S
HUM - 6S
HUM - 9S
HUM - 12S
HUM - 15S
HUM - 18S
HUM - 24S
Overall dimensions
600×330×495mm
640×550×500mm
700×600×500mm
700×650×
640mm
Dimensions of the
package
700×440×620mm
700×660×620mm
790×710×610mm
790×760×
750mm
29 kg
35 kg
39 kg
42 kg
45 kg
52 kg
HUM - 3S
HUM - 6S
HUM - 9S
HUM - 12S
HUM - 15S
HUM - 18S
HUM - 24S
3 kg/hour
6 kg/hour
9 kg/hour
12 kg/hour
15 kg/hour 18 kg/hour
24 kg/hour
Weight
25 kg
Technical specifications
Model
Capacity
220V/1/~50Hz
Voltage
Power demand
Head
600 W
300 W
20 Pa
Steam pipe socket
diameter
1 pc. (Ø110 mm)
Air filter dimensions
(EU3 class)
245х130х12
900 W
1200 W
40 Pa
1500 W
1800 W
2500 W
50 Pa
2 pc. (Ø110 mm)
3 pc. (Ø110 mm)
445х105х12
445х105х12
Protection class
IPX0
Connecting fittings
1/2 "
Humidity sensor
cable length
2m
Installation
Since the device is equipped with an ultrasonic transducer it is recommended to place
the air humidifier as far as possible from electromagnetic sources. In case of electromagnetic
disturbances from the electrical power network it is required to install an additional filter.
Power wire section should not be less than 1,25 - 2,00 mm2.
For correct operation the humidifier should be located on a flat surface. The minimum
length of a straight steam pipe should not be less than 1,5 meter over the humidifier housing
to prevent water mist entering the humidifier air intake channels. In case a guiding square
elbow is mounted on the steam pipe the connection area should be sealed and the distance
from the steam pipe end and the humidifier housing should be at least 100 mm to protect the
housing from water since it can cause damages.
For better water mist distribution inside a room it is necessary to use a steam pipe with
diffusers. In this case the steam pipe should not have height differences and its internal surface should
be smooth to prevent water accumulation.
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Water quality requirements:
Dimensions of the solid particles should not exceed 100 micron and their hardness should
not exceed 5 units. If the water quality does not meet the mentioned requirements the
humidifier must be equipped with a water softening device.
Attention! Never refill water through steam pipes! It will cause the humidifier failure.
It is not allowed to use the device without grounding. Grounding cable section should be
20% larger than the section of power wires.
Commissioning
Prior to commissioning it is necessary to make oneself aware of operating conditions and to
observe them during operation:
Operation
temperature
+5..+40℃
Water
pressure
1 - 4 bar
Range of
humidification
10 - 98%
Water
temperature
+1..+30℃
Water quality
requirements
Clean main water (with softener)
Environment
Do not place near IR heaters;
Do not place near strong
magnetic field sources;
Use in premises with
low dust content
Prior to the first start-up it is necessary to open service panels and to make sure that
there are no foreign objects. It is also necessary to make sure that filters are installed, power
and water supply lines are properly connected to the humidifier. After inspection the service
panels should be closed. It is prohibited to operate the humidifier with open panels.
The humidifier is started by selection of an operating mode with a 3-position switch
located on the right side panel. Before the operating mode selection it is necessary to open
the water supply and to wait till the humidifier tank is filled with water.
The humidifier has two operating modes: manual (MAN) and automatic (AUTO). In
manual mode (MAN) humidification is continuous. In automatic mode (AUTO) humidification
is performed until a humidity set-point is reached. Humidity level is controlled by means of a
remote humidity sensor. The humidity sensor connector is near mode selector switch.
Humidifier automatic operation is impossible without the humidity sensor.
Humidity parameters are monitored and controlled by a controller located on the
humidifier front panel.
Humidity controller indicators:
 RUN indicates that the humidifier is running;
 upper PV figures display current humidity values;
 lower SV figures display the set humidity.
Buttons of the humidity controller:
- used for entering the parameters menu;
- used for humidity level increase;
- used for humidity level decrease.
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To set the desired humidity level press , then use
and
to choose the humidity value.
Press and set the operating threshold (SHC) at humidity change. To apply the settings and
to leave the menu press again.
For example. The operating threshold (SHC) is set at 2%. If PV parameter value is 2% above
SV parameter value the device will stop automatically till PV parameter value is 2% lower
than SV parameter value. As soon as this condition is fulfilled the device will switch on again.
The humidifier default setting is 80%. The desired humidity can be set from 0% to 100%.
Attention! It is not allowed to place the remote humidity sensor in the area directly
exposed to water mist!
Maintenance
To assure the humidifier long-time and trouble-free operation its timely cleaning and
maintenance is required.
Prior to any operations on the humidifier it is necessary to disconnect it from the
electric network and to drain water from the tank using a cock located on the
humidifier housing.
Before a long shut-down period it is necessary to drain water from the tank, remove the
tank top panel, wipe with a dry cloth and let the device to dry out.
After a long period of operation various hard deposits can form on the tank surface and
on the piezoelectric radiators panel which have a negative effect on spraying. To assure
nominal humidification it is necessary to keep the panel with radiators free of any deposits. It
is prohibited to use household detergents for tank and radiator panel cleaning. Do not touch
the nozzles. Cleaning should be carried out at least 1 time per month. Proceed as follows :
· open the top panel;
· wipe the tank and the upper part of the piezoelectric radiators panel with a soft cloth or
brush;
· wash the tank and the panel with flowing water. Avoid water contact with electronic
components. It can cause a short circuit;
· wipe the surfaces with a dry cloth and replace the top panel.
If the humidifier is used with interruptions it is required to change the water in the tank on a
regular basis.
Water filter cleaning should be carried out at least once a month. For this purpose proceed as
follows:
· open the water filter housing;
· wash the filter element;
· assemble the filter.
Attention! The supplied water quality strongly influences the device durability. To
improve the water quality it is recommended to use additional filters for dematerialized
water treatment.
The air filter located behind the front removable panel is to be maintained as well. The
filter condition should be checked at least once a month. If the filter condition is unsatisfactory
it must be replaced.
The piezoelectric radiators panel is subject to replacement after 5000 operating hours.
For the nozzle panel replacement contact an authorized service center.
After the radiators panel or the float valve replacement it is necessary to check the
panel depth relative to the tank water surface and if necessary adjust the depth. The depth is
adjusted with a screw located on the float valve.
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Рис. Расположение панели с излучателями
относительно поверхности воды
Possible malfunctions and their correction
The device is equipped with fuses. The fuse blows in case of an internal failure and for fire prevention. After
detection of the malfunction cause it is necessary to replace the fuse. Never replace a fuse with a bigger one.
Malfunction
Cause
Solution
Controller is improperly connected or
not connected to power line
Check wiring with wiring diagram
High or low electric line voltage
Connect the device to a power source
with required parameters
Power cable is damaged
Replace the cable
A. No voltage in the electric line
B. Fuse is blown
С. Power cable is not connected
A. Check the electric line voltage
B. Replace the fuse
С. Connect the power cable
The device is switched on
but there is no mist
Voltage is more than 5% lower/higher
than required
Check the voltage, install a stabilizer
if necessary
Water tank overflow
A. Float valve is incorrectly adjusted
B. Float valve is blocked or damaged
A. Adjust the float valve
B. Clean or replace the float valve
Water mist is thin
or no mist at all
A. Float valve incorrect level
B. Badly contaminated radiator panel
C. Voltage is more than 5% lower than
required
A. Adjust the float valve level in
accordance with instructions
B. Clean or replace the panel
C. Install a stabilizer
Humidity sensor is broken
Replace the humidity sensor
Humidity sensor wires are damaged
Check the wires for discontinuity oк for
insulation damage
Humidity sensor installation depth
is not sufficient
After checking of the sensor check
whether it is installed in a right way
Humidity sensor is installed in
a wrong place
Install the sensor in accordance with
instructions
There is a source of strong
disturbances near the device
Controller wires are is improperly
connected
Find and remove the source
of disturbances
Incorrect operating parameters
Set correct parameters
Humidity controller is broken
Replace the humidity controller
No information on the
display
The display is blinking
Power indicator is off
Device misoperation
Device misoperation
Check wiring with wiring diagram
The device repair and diagnostics must be performed in an authorized service center.
Attachment
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