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Installation and Operating Instructions 

     

-20

R

 

Art.No. 3104811211 

Function 

The electronic backwash controller EUROTRONIK-20 switches the filtration pump of a swimming-pool on 
and  off  at  programmable  times  and  controls  the  backwashing  and  clear  rinsing  cycles  for  cleaning  the 
filter.  The  EUROTRONIK,  which  is  mounted  on  the  6-way  valve  with  a  protected  quick  coupling, 
automatically  moves  the  valve  into  the  correct  position  and  operates  the  filter  pump.  The  time  of  the 
backwashing and clear rinsing cycles is adjustable and can be seen in the LCD display. 

The backwashing cycle can be carried out both on a 

time-control

 (by way of the integrated digital switch 

clock) as well as 

pressure-dependent

 basis. The adjustable pressure switch (art. no. 2000599015) is not 

included in the delivery package. It is also possible to start the backwashing cycle manually with a key in 
the housing cover. 

A  connection  for  a  230  V  motor-operated  valve  enables  withdrawal  of  the  water  needed  for  the 
backwashing  cycle  directly  from  the  swimming  pool  instead  of  from  the  overflow  collecting  tank  and 
replenishment  of  fresh  water  during  backwashing. 

An  additional  floating  relay  contact  can  be  used 

during backwashing to operate a second pump (backwash pump or blower).

 

A connection for an external temperature regulator provides the possibility of heating the pool during the 
filtration times. An internal latch makes sure that the heater will only be enabled when the pump is running. 

To empty the swimming pool, the 6-way valve can be moved into the position 

Empty

. The key for this is 

also  located  in  the  housing  cover. 

For  maintenance  purposes  the  valve  can  also  be  moved  into  the 

position Closed with a further key.

 

The respective valve position and position changes can be read  on an LCD display in the housing cover 
without  having  to  open  the  housing.  The  valve  disk  is  lifted  before  turning  to  protect  the  star  seal.  The 
pump is switched off during this time. 

Technical specifications 

Dimensions: 

245mm x 140mm x 95mm 

Power supply: 

230V/50Hz 

Power consumption of the controler: 

approx.10VA 

Breaking capacity: 

 

max. 1,1 kW (AC3) 

Motor-operated valve: 

230V 

System of protection: 

IP 54 

Ambient conditions: 

0-40°C, max. 95% r.H. non condensing 

Usable valves: 

Praher 1½" and 2" 

 

Speck 1½" and 2" 

 

Midas 1½" and 2" 

 

Astral 1½"  

With appropriate adapter 

Astral 2"  

 

Hayward 1½" 

Static water pressure: 

max.0,3bar 

Water column above the valve: 

max. 3,0m 

The  specified  valve  variants  are  guide  values.  Since  the  design  and  geometry  of  the  valves  can  change 
and these sometimes show significant sample variations, compatibility with the EUROTRONIK may need 
to be requested from the valve manufacturer. 

Summary of Contents for 3104811211

Page 1: ...ump backwash pump or blower A connection for an external temperature regulator provides the possibility of heating the pool during the filtration times An internal latch makes sure that the heater wil...

Page 2: ...ntroller on off 7 Manual control of the filter pump 7 Setting the time 7 Programming the timer backwashing and clear rinsing times 8 Programming the timer filtration times 8 Backwashing manual 9 Empty...

Page 3: ...little adhesive or grease to facilitate mounting of the controller For later operation of the system it is immaterial whether the pin is loose because it is centred by the housing of the controller Pr...

Page 4: ...ral Valve with bayonet lock Replace slides if necessary Stick on spacer disks if necessary Mounting of the EUROTRONIK Press the two slides yellow or red in completely at the same time Place the contro...

Page 5: ...ocess In teh position Filter this contact is only closed during filtration time The contact K3 in the EUROTRONIK is only closed when the valve is in the final position Filter and the filter pump is ru...

Page 6: ...is first lifted Rotate Backwash The valve disk is turned into the position Backwash Lower Backwash The valve disk is lowered into the position Backwash 4 39 Backwash The backwashing cycle is running T...

Page 7: ...ff The EUROTRONIK is off The valve is in the position Filter Switch defect The bottom final position of the valve disk has not been detected The microswitch in the bottom part of the housing is possib...

Page 8: ...and the normal operating display appears again If backwashing times have already been programmed they can be deleted with the key 1 Press the key repeatedly until the backwashing time that is to be d...

Page 9: ...ycle is the same as that entered during programming of the timer This key can also be used to end a backwashing cycle already in progress Emptying the swimming pool When the key is pressed for longer...

Page 10: ...ation of the filter pump during the complete backwashing time b Intermittent backwashing with repeated switching on and off of the pump during the backwashing time for better loosening of the filter s...

Page 11: ...essure switch Switch status of a pressure switch connected to terminals 10 and 11 B fortnightly Switch position of the left DIP switch backwash fortnightly B interval Switch position of the right DIP...

Page 12: ...with the help of the contact K4 The following displays are possible Backw pump OFF The pump is off K4 open Backw pump ON The pump is on K4 closed When the auxiliary backwash pump is shown in the top...

Page 13: ...ff when the bottom final position is reached or the key is pressed again 4 The normal diagnostics display reappears when the key is pressed again Note The drain of the swimming pool must be installed...

Page 14: ......

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