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Aktobis AG, Borsigstr. 20, D-63110 Rodgau / Germany 

www.AKTOBIS.de

 

Email: [email protected] 

 
 
 
 
After transport or assembly: 

 

As the unit works with cooling liquid, we ask you to let it stand upright for at least 1 hour before using it for the first 
time or after mounting the castors (transport handle), so that the cooling liquid in the unit can settle again. 

 
During first operation / hose connection:

 

 

If you want to use a hose connection for draining the condensate, make sure that the hose connection is properly 
seated and that the condensate (water) can always drain off unhindered! If this is not observed, the water 
condensed by the building dryer (up to 50 litres per day) can cause damage to the room! 
 

Room humidity and dehumidification performance: 

 
If you want to check the room humidity and the associated dehumidification performance with your own humidity 
meter (hygrometer), please avoid attaching this humidity meter to a wall, as this will falsify the true humidity content 
of the room air. See also the explanations under Troubleshooting !!! 
 

 

Important safety instructions: 

 

Supervise the building dryer when children are near the unit ! 

Watch out for electricity - never walk into or insert objects into the appliance ! 

Do not place any objects on the construction dryer ! 

Do not block the exhaust and intake louvres of the unit and please ensure sufficient space/clearance at and 
around the fan ! 

Make sure that there is sufficient air supply to the unit, otherwise it can lead to a reduction in performance and, 
in the worst case, to overheating and/or fire ! Please always keep a distance of approx. 20 cm to the wall to 
avoid possible overheating of the unit ! Do not use in airtight rooms ! 

Only qualified personnel or electricians are allowed to open the unit or carry out repairs ! 

Make sure that no moisture gets into or onto the unit ! 

Only use the recommended voltage for operating the unit ! 

Make sure that the power cable is unfolded (untied) before connecting it to the socket ! 

Make sure that the plug is cleanly and properly connected to the socket before using the appliance ! 

Do not use multiple sockets to operate the building dryer ! 

Make sure that highly flammable substances (e.g. gases/oils etc.) are never in the vicinity of the unit ! 

Do not use any insect, oil or paint spray etc. near the building dryer. This may cause damage to the unit or 
even fire ! 

If you are not going to use the unit for a long time, switch it off and disconnect the mains plug ! 

Do not disconnect the mains plug by pulling on the power cable ! 

Please keep the unit away from heat sources and avoid direct sunlight ! 

Always hold and transport the unit in its proper position ! Never place the unit on its side or even upside down ! 

Make sure that the unit is earthed ! 

 
Please switch off the unit immediately and disconnect it from the mains/power supply if anything 
seems to be wrong !!! In this case, please contact a specialist and do not attempt to repair the 
unit yourself !!! 

 
Examples: 

Fan does not run during operation, fuse has blown, there is a funny smell or the compressor rattles 

loudly. 

 
 
 
 
 
 
 
 
 

Summary of Contents for WDH-500AH

Page 1: ...ct To ensure that you get a lot of enjoyment from this product here are a few more tips In case of any problems We hope that the unit meets your expectations If despite the greatest possible care ther...

Page 2: ...e base plate of the building dryer using the 10 mm spanner C Insert one axle clamp on each side through the small holes at the level of the outside of the dryer housing and then bend them up or apart...

Page 3: ...supply to the unit otherwise it can lead to a reduction in performance and in the worst case to overheating and or fire Please always keep a distance of approx 20 cm to the wall to avoid possible ove...

Page 4: ...mes heat Please note that the refrigerant is odourless and therefore a leak cannot be detected immediately by an emerging odour If refrigerant leaks it may ignite or explode especially in poorly venti...

Page 5: ...OFF SWITCH Increase button the target moisture Lowering button the target moisture 1 Air intake front panel 2 Filter behind the front panel 3 Transport handle 4 Display and control panel 5 Electricit...

Page 6: ...lights up automatically The target humidity value is already preset to 60 r l by default The unit is programmed so that the compressor switches on for dehumidification as soon as the selected target h...

Page 7: ...ensuring higher efficiency Too much dust and dirt in the filter sieve or on the cooling fins reduces the dehumidification performance and can lead to a loss of efficiency in the In the worst case this...

Page 8: ...50 ltr day 30 C 80 r h Air circulation Approx 350 m3 h Compressor Rotary compressor Dimension H W D 925 x 605 x 462 mm Weight 31 kg Waterproofness IPx0 Cooling pressure max 2 5 MPa Vapour pressure ma...

Page 9: ...authorised customer service To To make your warranty claim please enclose the original sales receipt with date of sale Excluded from the guarantee are Normal wear Improper applications such as overloa...

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