background image

- Output 1 (output 1):

  Output voltage: 18 VDC, max. current load: 1.3 A

  The output is switched via the button „ON/OFF“. The timer operation is 

activated by pressing the button „Timer“. That means that the output 1 

„OUTPUT 1“ is activated for approx. 10 minutes every hour. This mode 

of operation is reasonable in particular in case of inadequate insolation. 

The output voltage is firmly set to 18 V.  

- Output 2 (output 2):

  Output voltage: 6 VDC, max. current load: 0.7 A

  The output is switched via the button „ON/OFF“. The output voltage is 

firmly set to 6 V.  

 Note: The outputs are connected by means of system plugs. 

Corresponding distributors and/or extensions are available as 

accessories. The protective caps at the plug-in connections have to 

be  tightened.  Not  used  outputs  have  to  be  closed  by  means  of  the 

corresponding protective caps. Please do not apply force when plugging 
in!

5. Indicator LEDs

LED „SYSTEM“:

  green:  

 

Accumulator charged and outputs may be  

 

 

  switched 

on. 

  red/ green 2x flashing:  

Accumulator in full charge. 

   

 

 

See item: 6.

  red:    

 

The accumulator is discharged and the outputs 

 

 

  are 

(OUTPUT) switched off. 

LED „CHARGING“: yellow:    

Accumulator is charged

  

 

yellow flashing:  

Accumulator is fully charged and on 

 

 

   trickle 

charging.

LED „OUTPUT 1“:  green:    

Output 1 is switched on.

  

 

green flashing: 

Short circuit on output 1. 

LED „TIMER“:  green:  

Timer mode is activated.

LED „OUTPUT 2“: green: 

   

Output 2 is switched on.

6. Charging process

The LED „System“ will shine red if the accumulator was discharged the 

previous evening.

In the morning and when the sun is shining, the charging of the accumulator 

will have priority. As soon as the accumulator is charged, the „Charging“ LED 

will light up yellow. The charging timer is started when the accumulator reaches 

the voltage of 12.7 V and the accumulator will be fully charged for another (30 

min. 7 Ah box) 50 minutes (12 Ah box) . The LED „System“ flashes every 10 

seconds 2 x from red to green. The outputs (Output) are switched on after 

those 50 minutes. 

7. Exchanging the accumulator

We recommend exchanging the accumulator approx. every 2 years. A new 

identical in construction accumulator is available from the manufacturer or 

dealer. 

Proceed as follows if you want to exchange the accumulator:

1.   Put the main switch (SYSTEM ON/OFF) at the front side of the accumulator 

box in the position „OFF“ and unplug all plugs. 

2.  Turn the accumulator station upside down and loosen the bottom four 

screws. 

3.  Then turn the accumulator box back again and carefully remove the lid. 

4.  Loosen the + Pole and - Pole connection on the accumulator.

5.  Remove the accumulator from the case and insert a new identical in 

construction accumulator.

6.   Put the cable lugs back onto the poles of the accumulator. In doing so, please 

pay attention to the color of the cables: positive pole (red) and negative 

pole (black).

7. Close the case in reverse order.

Note: Please only use an identical in construction accumulator with identical 

voltage and capacity. 

Note: The old accumulator has to be disposed of in an environmentally sound 

way.  For  this  purpose,  please  contact  you  local  authorities,  public  collection 

points or your dealer. 

8. What to do during the winter

Fully charge the accumulator in the accumulator box. Use a sunny day for this 

purpose and put the switch „SYSTEM ON/OFF“ in the position „OFF“

Only store the accumulator box (during the winter) in a fully charged state in 

a frost-free room. At sunny days, the accumulator box may occasionally be 

connected to the solar module for charging purposes. This enables an as long 

as possible lifetime of the accumulator. 

If you want to operate the accumulator box during the winter, e.g. in connection 

with a pond aerator or a string of LED lights (available as accessories), then it is 

possible to store the box outdoors. Please pay attention to the fact that the site 

is free of snow and that the accumulator box is not under water when thawing 

begins. A frost protection for the accumulator box would be advantageous. 

9. Troubleshooting

- LED does not shine green despite insolation but the yellow LED shines.

1.  The accumulator is not charged sufficiently and has not achieved the restart 

threshold. The charging process may take several hours when the insolation 

is insufficient. (see item 6).

2.  Accumulator is exhausted! The accumulator should be exchanged approx. 

every 2 years. Please see item 7 of this instruction.

- LED does not shine green despite insolation; when the switch „SYSTEM 

ON/OFF“  is  switched  off  and  on  again,  the  pump  starts  to  run  and  the 

green LED shines.

1.  The accumulator had not achieved its restart threshold. After the switching off 

and on of the system, the electronics is reset and the connected consumers 

are supplied with energy without waiting for the restart threshold. This is 

an absolutely normal process and does not constitute a defect (please see 

item 6). However, this method should not be applied because it has negative 

effects on the lifetime of the accumulator. 

- LED does not shine green despite insolation. The LED System flashes 

green two times at an interval of 10 seconds.

1.  The accumulator is in the full charge phase. Please pay attention to item 6.
- The green LED above output 1 flashes.

1.  There is a short circuit or overcharge on output 1. Please check the 

connected device and all plug-in connections (in particular the pumps and 

the LED lighting) for tightness.

2.  Check the cables for damages or bites by animals.
- The yellow LED „CHARGING“ shines but nothing else works.

1.  Is the switch „SYSTEM ON/OFF“ switched on (position ON)?

2.  If yes, then switch off the switch „SYSTEM ON/OFF“ for approx. 1 minute 

and then on again. This will reset the control electronics.

10. Technical data: 

Type 

Accu box 12 V /7 Ah 

Accu box 12 V/ 12 Ah

Art.-No:  

101816 

101812

Max. module capacity: 

50 Wp 

50 Wp

Charging timer:  

30 min. 

50 min.

Protection class:  

IP 44 

IP 44

Temperature range:  

-15 to +30°C 

-15 to +30°C

Accumulator:  

PB 12 V/7 Ah 

PB 12 V/ 12 Ah

Replacement accumulator: 

901034 

901032

(www.esotec.de)

Outputs: 

Output 1:  

DC 18V/ max. 1.3A 

DC 18V/ max. 1.3A

Output 2:  

DC 6V/ max. 0.7A 

DC 6V/ max. 0.7A

5 m extension cable solar module:  101738 

101736

5 m extension cable “Output 1”:  101738 

101736

5 m extension cable “Output 2”:  101740 

101740

WARNING of trip hazard! Please lay the connection cable so that it does not 

constitute a trip hazard!

Disposal:

Dear customer,

please cooperate in avoiding waste. When you intend to dispose of the 

product in future, please consider that it contains valuable raw materials 

suited for recycling.

Therefore, do not dispose it of with domestic waste but bring it to a col-

lection point for the recycling of waste electrical and electronic equipment. 

Thank you very much for your cooperation!

Manufacturer:

esotec GmbH  -  Gewerbegebiet Weberschlag 9  -  D-92729 Weiherhammer

Tel.-Nr: +49 9605-92206-0 

Fax.-Nr: +49 9605-92206-10

Internet: www.esotec.de 

WEEE-Nr: DE59284711

Copyright! esotec GmbH

Battery take-back

-   Batteries must not be discarded into domestic waste.

-   The consumer is legally required to return batteries after use, e.g. to 

public collecting centers or to battery distributors. 

-   Contaminant-containing batteries are labeled with the sign “crossed-out 

trashcan“ and one of the chemical symbols. Used batteries should be dis-

posed environmentally friendly and should not be discarded into domestic 

waste. Your dealer is legally required to take back old batteries.

Pb

Reviews: