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The below diagram shows an example of metal corrosion rate at different air humidity levels.

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As you can see on the graph the rate of corrosion is insignificant at the relative humidity (RH) 
below 50%, and it can be disregarded at RH below 40%. But at the relative humidity above  
60% the rate of corrosion increases considerably. 

This moisture  damage example applies also to many other materials, such as powders, 
packaging, wood, electric equipment  or electronic devices.

There are two different ways of achieving required humidity in a building being dried out:
1. By heating with further air exchange:
The ambient air is heated to absorb the moisture and then it is discharged to the atmosphere. 
However the total energy output is lost during the moist air discharging to outside. 
2. By the air dehumidification:
The moist air in an enclosed room is continuously dehumidified by the condensation principle 
or by other dehumidification method. 

In terms of energy consumption the air dehumidification has one essential advantage:  

the energy expenditure requirements are limited by the air volume in the existing room 
only. 

The heat generated during the air dehumidification process (heat of condensation) slightly 
increases the air temperature in the room. 

When properly used the dehumidifier consumes about 25% of the energy that would be 
needed for the „heating and ventilation".

 

The relative and absolute air humidity

1 m3 of dry air weighs about 1,2 kg at 20° C. 

The ambient air is a gas mixture that always contains a certain amount of water in the form of 
water vapor. The maximum water vapor content in the air (moisture content of the saturated 
air) depends on its temperature and pressure. 

0

20

40

60

80

100

30

60

90

120

0

Air relative humidity, %

Corrosion time

Содержание DEH-1200i

Страница 1: ...DanVex DEH 900i DanVex DEH 1200i Dehumidifiers Operation manual...

Страница 2: ...R www danvex fi 1...

Страница 3: ...fication principles Attention These units cannot be used for air cooling Use of DanVex dehumidifier Despite of windows and doors insulation quality damp and moisture can penetrate even through thick c...

Страница 4: ...utside 2 By the air dehumidification The moist air in an enclosed room is continuously dehumidified by the condensation principle or by other dehumidification method In terms of energy consumption the...

Страница 5: ...led the maximum water vapor volume that can be absorbed continuously reduces the water vapor volume contained in the air remains however the same and the relative humidity increases If the air tempera...

Страница 6: ...dehumidifier The air flow is cooled on the way through the evaporator condenser system till its temperature is below the dew point Water vapor condenses it is collected in a condensate trap inside the...

Страница 7: ...s or in case the unit is not used for the intended purpose The following safety instructions must be observed It is prohibited to install or operate the units in the locations subject to explosion haz...

Страница 8: ...sure fail safe and long term operation of the unit The unit complies with the fundamental safety and health requirements of the existing EU regulations The unit is easy and safe to operate Dehumidifie...

Страница 9: ...to the waste water disposal system should be connected with the connector external part In this case the humidifier can work continuously without interruptions caused by the condensate discharge from...

Страница 10: ...0100 Part 704 for electric current supply sources equipped with automatic circuit breakers If the unit is installed in humid premises such as laundries or cellars it should be equipped with proper aut...

Страница 11: ...R www danvex fi 10 Grill Air filter Control panel Connector...

Страница 12: ...reen and click or to adjust the time B In working mode press timer to set Auto stop time off time will flash in screen and click or to adjust the time 3 button Press this button directly to increase t...

Страница 13: ...time Press the Time button for the first time the hour time on the display flashes press and to adjust the current hour and minute time Press the Time button for the second time the Start up time on t...

Страница 14: ...ore the current status before the power is cut and enter the operation mode before power cut automatically after power is supplied 5 Range for humidity is 20 90 6 If the dehumidifier is going to be sp...

Страница 15: ...at temperature around pipe may result in icing continuous water drain is not allowed Do not repair disassemble or alternate the machine without authorization so as to avoid fire or electric shock acci...

Страница 16: ...wn the front panel clear the filter mesh Tap the filter mesh slightly or eliminate the dust by vacuum cleaner or place the mesh in warm water 40 and add appropriate neutral scour and brush and then wa...

Страница 17: ...city Internal condensate tank capacity Cooling agent Power Frequency Rated consumption Sound pressure Depth Width Height Gross weight RH l day m3 hour liters V Hz kW dB A mm mm mm kg DEH 1200i 5 32 40...

Страница 18: ...R www danvex fi Attachment Electrical diagram 17...

Страница 19: ...equipment normal operation All recommendations and instructions of the manufacturer concerning the equipment installation operation and maintenance were observed Only original parts and materials wer...

Страница 20: ......

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