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5.7 Condensate outlet AD 740 / AD 750 

 

The dehumidifiers AD 740 / AD 750 are provided with a water collecting bucket (12 l) 
and a connection for hose 15 mm.  
The water bucket is in the device on a balance. The balance is activated by the 
weight of the full bucket and the device is switched off. Switch off the unit at the 
on/off-switch and empty the bucket. After the bucket is placed in the device again, 
turn on the device at the on-/off-switch. 
A connection outlet 15 mm is placed above the bucket. Remove the bucket 
provided that you would like to guide the condensate directly into a drain. Attach a 
hose to the drain 15 mm and secure this with a hose clamp. Proceed cautiously in 
order not to burst the drain from the condensate tub. 
Guide the hose with slope of the device into the drain away (at least 5 cm per 
meters slope). 

 
5.8 Condensate outlet AD 770 / AD 790 

 

The air dryer AD 770 / 790 are serially equipped with fitting for 15 mm hoses. As an 
accessory, a water tank (25 ltr., optional extra) is available which is put under the 
device at the back. A piece of hose which is led into this bucket is already mounted. 
 

ATTENTION: 

Make sure that the condensate can always be handled safely. 
The water tank at AD 770 / 790 (optional extra) does NOT disconnect the device in 
the case of full state. During unattended using, AD 770 / 790 with built-in pump is 
advisable. 
 

5.9 Condensate pump (optional) 

 

Optional the devices are available with built-in condensate pump. In that case, a 
connection piece is found at the back wall of the device for hose 12 mm.  
A red pushbutton is also found at the back wall. In this way, the pump can be 
emptied manually, for example before transportation of the device. 
We recommend the manual pumping out before transportation since otherwise 
water from the pump can run onto the ground while tilting the device. 
 

5.10 Automatic defrosting 

 

During air drying, ice may form at the evaporator. The volume of ice depends on the 
ambient conditions prevailing in the room to be dried. The air dryer is equipped with 
an automatic hot-gas defroster. It ensures that, depending on the extent of ice 
formation, the appliance will be defrosted automatically according to the following 
principle: 

Ø

  A temperature sensor measures the condition existing in a critical area of the 

evaporator. 

Ø

  It transmits the signal for defrosting to the DryLogic-electronic. The DryLogic 

finds out if defrosting is necessary, and it will start defrost-mode on its own. 

Ø

  During defrosting the compressor works and the fan does not work. 

When the ice is defrosted, the dehumidifier will start again with dehumidifying. 
 
 
 
 

Summary of Contents for AD 740

Page 1: ...Page 1 of 15 Instruction manual _____________________________________ Dehumidifier AD 740 750 770 790 _____________________________________ valid 02 2008...

Page 2: ...50 6 5 4 Operation panel AD 770 790 7 5 5 Description of operation panel 7 5 6 Hygrostat control 7 8 5 7 Condensate outlet AD 740 750 9 5 8 Condensate outlet AD 770 790 9 5 9 Condensate pump option 9...

Page 3: ...er to be able to send the device safe for guarantee repair In order to save space you open simply the adhesive tape with a knife and you fold the carton 2 Mode of functioning The AD air dryer is const...

Page 4: ...tion dryers are intended for the drying of air with atmospheric pressure Risk by accessory Hoses for condensate removal and air filters must be fit expertly and must not take the protective devices of...

Page 5: ...therwise it must be secured against rolling off That dehumidifier can be transported upright or laid flat The upright transportation is to be preferred if possible The appliance must be used exclusive...

Page 6: ...eturn into the compressor We recommend this procedure since it extends the service life of the compressor Put the plug into the socket Check whether the bucket is placed in the unit AD 730 740 standar...

Page 7: ...andard The unit has switched off because the humidity in thet room is ok has achieved the requested value 6 Hygrostat see 5 6 Hygrostat control 7 On Off Switch 8 Make sure a free space in front of air...

Page 8: ...umidity values of a minimum of 40 45 r h can be achieved with a condensation dryer An adsorption dryer is to be employed if lower values are required For this purpose ask your technical consultant Opt...

Page 9: ...ater tank at AD 770 790 optional extra does NOT disconnect the device in the case of full state During unattended using AD 770 790 with built in pump is advisable 5 9 Condensate pump optional Optional...

Page 10: ...ooms of aggressive atmospheres for example ammonia and wood acid In rooms with water which shows a pH value outside of 7 0 to 7 4 Remark In The case of lower pH value corrosion occurs at all metals an...

Page 11: ...NTION When performing any repair or maintenance the general safety rules and provisions must be adhered to In order to guarantee a troublefree function of the dryer the device should be cleaned regula...

Page 12: ...s out of operation Fan and compressor does not run Is the dryer switched on The On Off switch must be in position I and must light up Is the unit supplied with voltage The On Off switch must light up...

Page 13: ...se the dryer needs some time to remove that water and to achieve an acceptable humidity in that room ATTENTION The appliance must be repaired by trained and expert personnel only In the case of interv...

Page 14: ...Page 14 of 15 11 Circuit diagram...

Page 15: ...EN ISO 12100 Safety of Machinery EN 50081 1 92 Electromagnetic Compatibility EMC Basic Specification Emitted Interference EN 50082 1 97 Electromagnetic Compatibility EMC Basic Specification Emitted I...

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