TIMBERK THU UL 04 User Manual
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www.timberk.com electric humidifier
Table 4.
<3%
4-15%
Middle level (normal power)
automatic switching off
Low level (low power)
Current humidity level
exceeds the favorable one
Hight level(maximum power)
>16%
Atomizing frequency
(intensity level atomizer)
Difference between levels of
favorable and current humidity
7.3 Mode selection
Press Mode button (SETUP) and the unit will switch over to the Night 
mode , Continuous (manual) mode or Automatic mode (AUTO).
7.4 Night mode
Press On/Off button (POWER), then in the auto mode press Mode button 
once to switch over to the night mode.
ZZZ indicator on the display will show that the mode is on. The level of
favorable humidity in the night mode is set to 50%. Duration of the warm 
atomizing operation (designated by the HEATING indicator) in the night 
mode amounts to 6 hours and it will be over in 6 hours.
The atomizing level in the night mode
Additional night mode function
When the humidifier is operating, repeated pressing POWER button 
decreases the display indicators brightness. This function is necessary when 
the unit is used at night for a comfortable sleep. To make the indication as 
bright as it was, it is necessary to press the same button twice again: at first the 
unit will be switched off and then it will be switched on again in the mode of 
bright indication.
7.5 Continuous (manual) mode
Press POWER button and the unit will start operating, press SET UP button and 
switch to the manual operation mode (the corresponding indicator will be 
illuminated on the display). In the manual setting mode you can freely adjust 
the frequency of steam atomizing, activate/deactivate humidification by 
warm steam, set the most suitable humidity level and timer operation.
Press the STEAM button once to adjust settings light-moderate-intensive , 
respectively. The display will show the corresponding settings.
The time, required to achieve the necessary room humidity level, depends on 
the atomizing frequency. When the humidity level, set by the user, is achieved 
the unit stops the operation.
At a light atomizing frequency the unit operates for about 60 hours; at a 
moderate frequency about 30 hours; at an intensive frequency about 20
hours. At the intensive frequency of warm steam atomizing the unit operates 
for about 11 hours.
The most suitable for the user humidity level is set by means of the lower and
upper buttons humidity level adjustment (up-down).
The setting range is within 40-80% with the adjustment of each set value by 5%.
8. Cartridge filter with an ion exchange resin
The set of the unit includes a cartridge filter with an ion exchange resin. Upon 
long use of the humidifier without replacement of resin a white residue may 
appear on the unit and objects next to it.
The white residue is calcium and magnesium comprised in the composition of 
ordinary tap water. When the ion exchange resin in the filter expires, they are 
released along with steam and settle on the surrounding objects and surfaces. 
Though these substances are safe for people, in large amounts they may have 
hazardous effect on furniture. By means of an ion exchange filter, installed at the 
bottom of the tank, calcium and magnesium are removed from tap water. At the 
beginning of operation the ion exchange filter can make water tea-colored. This 
doesnt affect safety or operation of the unit.
The ion exchange filter is 
installed at the cap of the water 
tank. To replace the filter it is 
necessary to remove a cap by 
turning it counterclockwise and 
then remove the filter also by 
turning it counterclockwise. The 
new filter is installed in the 
reverse order. To purchase an ion 
exchange filter, please, contact 
the seller.
Note:
Sometimes at high content of calcium and magnesium in water, the ion-
exchange resin cartridge may not completely eliminate these substances from 
water being used, in such a case it is necessary to use filtered water.
Important!
Useful capacity of an ion exchange filter is about 400 liters. Continuous 
use after expiration reduces the capability to filter hard components 
(calcium and magnesium) of tap water. As a result, the level of white 
residue formation increases.
Standard filter replacement period is about 180 days given the automatic 
operation mode (duration of humidification with heating about 6 hours 
every day). Filter replacement period can be decreased depending on 
different frequency of operation and water quality. Pay attention to the 
formation of a white powder.
Fig. 9
Filter with an ion
exchange resin
Cap of water tank
