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© by WilTec Wildanger Technik GmbH  

Item 50948

–50953 

Page 8 

 

http://www.WilTec.de

 

http://www.aoyue.eu 

  

09 2021

-1

 

http://www.teichtip.de

 

 

 

Replace UV lamp 

 

1.  Open the filter (Fig. 2 above) and turn the filter head over. 
2.  Carefully turn the quartz glass tube counter-clockwise 

 

until you feel a resistance 

 and pull it out. 

3.  Pull out the UV lamp and insert a new one 

4.  Fasten the quartz glass tube again by carefully turning it 

clockwise. 

 
 

Placing into aquarium 

 

 

(1) = Water level must be 3 cm above inlet bow. 
(2) = Suction must be parallel to aquarium wall. 
 
 

Filter operation and troubleshooting

 

 

Noise reduction/ external air 

 
Especially the suction pipe and the connected skimmer must be adjusted to the water level of the aquar-
ium and checked for seal tightness. In cases where this is not possible due to the form of the aquarium, 
the skimmer should be sealed completely to avoid undesirable external air intake. 
 

De-aeration

 

 
Take the return-flow hose that conducts the water from the filter to the fish tank and put its end inside a 
clean bucket placed below the filter. Carry out the de-aeration process (evacuation of air) by activating 
the manual pump. Please make sure to adjust the highest possible flow rate at the inlet/outlet connection 
piece. As soon  as there are no more air bubbles, seal the hose with a finger and reconnect  it to the 
corresponding pipe at the top edge of the aquarium. 

Summary of Contents for SunSun HW-702A

Page 1: ...48 50953 Illustration similar may vary depending on model Read and follow the operating instructions and safety information prior to initial operation Technical changes reserved Illustrations functional steps and technical data may deviate insignificantly due to continuous further developments ...

Page 2: ...form https www wiltec de contacts The most recent version of this manual in several languages can be found in our online shop https www wiltec de docsearch Our postal address is WilTec Wildanger Technik GmbH Königsbenden 12 52249 Eschweiler Germany Do you wish to collect your goods Our address for collection is WilTec Wildanger Technik GmbH Königsbenden 28 52249 Eschweiler Germany In order to shor...

Page 3: ...uarium An external aquarium filter can easily be placed under or next to the fish tank The 360 rotatable hose connections on the top of the lid allow for optimal positioning Due to its large volume the canister offers enough space for various filter media to ensure an effective filtering process The SunSun external aquarium filters of the HW series can easily be connected to fish tanks with large ...

Page 4: ... by WilTec Wildanger Technik GmbH Item 50948 50953 Page 4 http www WilTec de http www aoyue eu 09 2021 1 http www teichtip de Parts list ...

Page 5: ...ilter head 20 Outlet elbow 4 2 Pump shaft and impeller 11 Hose 21 Connection elbow 5 A Lid clip 12 Cover filter basket 22 Connection elbow 5 B Canister clip 13 Filter basket 23 Spray bar 6 Quartz glass tube 14 Inlet elbow 24 Spray bar plug Note The parts list may vary depending on the model Parts 6 6 1 and 7 are only available for HW 702B HW 703B and HW 704B Part 13 3 pieces for HW 702A HW 703A HW...

Page 6: ...e canister the UV lamp will be turned off automatically for safety reasons Please make sure to place the filter head carefully on the canister Fig 5 Otherwise the UV lamp will not work in struction only for HW 702B 703B 704B 6 Close all clips at the canister and the lid carefully Fig 6 7 You can adjust the water inlet and outlet with the small lever of the inlet outlet connection piece Push down t...

Page 7: ...fying bacteria Bio balls Bio balls are used as mechanical and biological filter media They provide optimal conditions for nitrifying bacteria due to their extra large surfaces and are considered high performance filter media especially for large filter systems In contrast to other filter media bio balls have a practically unlimited life span which makes them a popular and low cost filter medium fo...

Page 8: ...n external air Especially the suction pipe and the connected skimmer must be adjusted to the water level of the aquar ium and checked for seal tightness In cases where this is not possible due to the form of the aquarium the skimmer should be sealed completely to avoid undesirable external air intake De aeration Take the return flow hose that conducts the water from the filter to the fish tank and...

Page 9: ... filter head which is usually the clips on the side of the filter head and canister This problem is easy to solve Clean and check the O rings Also make sure to clean the spots where the O rings are inserted into the filter head regularly Algae growth or sand can impair or damage the sealing properties of the O rings if these spots are not cleaned on a regular basis This problem can also appear aft...

Page 10: ...opean Union and other European countries with a separate waste collection system for these devices The symbol on the packaging or the product itself indi cates that this product must not be treated as normal domestic waste but must be disposed of at a recycling collection station for electrical and electronic waste By disposing of this product correctly you contribute to the protection of the envi...

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