• Do not screw the magnet valve onto thin wooden panels or similar material, as they act as sounding boards and may
cause humming sounds.
General safety regulations
• For indoor use at room temperature only.
• The device is not intended to be used by persons (including children) with limited physical, sensory or mental capacity,
lack of experience, and/or lack of knowledge, unless someone who is responsible for their safety provides supervision or
instructions on how to use the equipment. Children should be supervised to ensure that they do not play with the device.
• Always handle glass equipment with care. Glass breakage can lead to injuries. Keep out of reach of children.
1 Correct use
The CO2 plant fertilization system is used to supply aquariums with CO2 to promote plant growth. Correct use includes obser-
ving and complying with these operating instructions. Using the device in any way other than that intended or carrying out any
unauthorised repairs or modifications shall be deemed improper use. Improper use can lead to material damage and personal
injury. Dennerle GmbH assumes no liability for damage caused by improper use.
2 Contents
See information on the packaging.
3 CO2 fertilization system overview
3.1 Fully assembled system
CarboPOWER E400 / Special Edition [1]
CarboPOWER M400 / Special Edition [2]
1. disposable CO2 bottle 500 g (CarboPOWER E400)
2. reusable CO2 bottle 500 g (CarboPOWER M400)
3. Stand (CarboPOWER M400)
4. CO2 pressure reducer CarboPOWER
5. Adapter for reusable CO2 bottles (CarboPOWER M400,
Flex200)
6. CO2 magnet valve (Special Edition only)
7. Time switch (not included)
8. Special CO2 check valve
9. CO2 special hose
10. CO2 diffuser flipper
3.2 CO2 pressure reducer CarboPOWER [3]
1. Operating pressure manometer
2. Bottle pressure manometer
3. Operating pressure control knob
4. Needle valve
5. Hose connection
3.3 CO2 long-term test Maxi Crystal [4]
1. Test container with suction holder
2. CO2 special indicator, 2 ampoules
3. Pipette
4. Colour comparison scale
3.4 CO2 Flipper [5]
1. Hose connection
2. CO2 tube
3. Diffusion slits
4. CO2 collection tank
5. Waste gas vent
6. Long-life suction cup
4 Assembly and connection
4.1 Connecting the pressure reducer to the disposable
CO2 bottle
• Turn the control knob all the way to „ - „ (CO2 supply
closed).
• Check to make sure that the seal in the connection piece
of the pressure reducer and the sealing surface of the
bottle valve are clean.
• Hold the pressure reducer straight and screw it on slowly
until you feel a slight resistance: The pin in the connec-
tion piece of the pressure reducer is now on the bottle
valve. Next, turn the pressure reducer quickly about half
a turn further until it is hand-tight. It may hiss a bit. [6]
• The pressure reducer can be unscrewed at any time – the
bottle valve closes automatically. It may also hiss a
bit during the first turn when unscrewing, so it is best
to start unscrewing the pressure reducer with a quick
motion.
4.2 Connecting the pressure reducer to the reusable
CO2 bottle
• Place the CO2 bottle in the stand.
• Turn the pressure reducer control knob all the way to
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