18
5.7 How the CO
2
Flipper works
The Flipper is a modern, highly effective CO
2
diffusor which ensures
the most efficient possible use of the valuable CO
2
fertilizer.
While CO
2
bubbles rise slowly in the Flipper, the CO
2
dissolves in the
aquarium water. At the same time, other gases which are naturally
dissolved in the aquarium water penetrate into the CO
2
bubbles. These
“waste gases” explain why the bubbles do not dissolve completely, despite
becoming smaller as they rise in the aquarium water.
The waste gases are substantially lighter than the relatively heavy
CO
2
and thus accumulate in the CO
2
collector at the top. Here they are
discharged regularly via the special waste gas vent.
The running-in period for the Flipper is approx. 2 days
.
Initially, the individual CO
2
bubbles combine to form larger bubbles.
As soon as a biological surface layer of microorganisms has formed,
the bubbles rise up to the collector.
5.8 Adapter for reusable CO
2
cylinders
With the Dennerle adapter (art. no. 2999), Primus and Quantum
pressure reducers can also be connected to all standard reusable CO
2
cylinders (connection thread W21.8 x 1/14”).
6 What if ... – Troubleshooting
7 Upgrades for CO
2
fertilizer systems
Level 1: CO
2
night cut-off valve: The Dennerle CO
2
night cut-
off valve
serves to cut off the CO
2
supply at night by
means of a time switch, as plants do not consume any CO
2
at night. This saves valuable CO
2
.
Level 2: Fully automatic:
The
Dennerle pH Controller Evolu-
tion
measures the pH value in the aquarium continuously
and controls the supply of CO
2
precisely and fully automa-
tically via the
CO
2
solenoid valve
.
8 Technical data
8.1 Evolution Primus and Quantum pressure reducers
Maximum permissible cylinder pressure (operating pressure): 160 bar
Connection for hose 4/6 mm
Dynamic Valve Control (DVC) for precision control
Factory-calibrated precision needle valve with stainless steel needle,
adjustable via ultra-fine thread
Self-closing pressure-relief safety valve
8.2 Solenoid valve (Special Edition only)
230 V ~, 50/60 Hz
Power consumption: 1.6 W
Maximum permissible pressure: 5 bar
IPX 4 – splash-proof
9 Spare parts and useful accessories
(available from specialist retailers)
3013
Disposable CO
2
cylinder 500 g
3047
Reusable CO
2
cylinder, 500 g
2999
Adapter for reusable CO
2
cylinders
1484
Leak detector spray
3060
Special Softflex CO
2
hose, 2 m
3053
Special CO
2
check valve
3040
CO
2
long-term test Correct
2970
Profi-Line CO
2
solenoid valve
3093
pH controller Evolution Deluxe
Fault
Cause
Remedy
A faint hissing sound
is to be heard at the
screwed connection
between pressure
reducer and CO
2
cylinder.
No more bubbles at
the CO
2
diffusor.
CO
2
bubbles stuck in
the Flipper.
Pressure reducer is
skew or has not been
screwed in tight
enough.
Washer dirty or faulty.
Solenoid valve closed
CO
2
cylinder empty
Setting knob closed
Hose connection
leaking
Needle valve blocked
Flipper is still in the
running-in phase.
Obstacles on the
channels (snails,
algae).
Unscrew pressure re-
ducer and screw back
in place without can-
ting.
Clean sealing surfaces.
If necessary, replace
washer (Dennerle
Customer Service)
Open solenoid valve
Replace the CO
2
cylinder
Open setting knob
Check hose connection,
replace if necessary
Clean and recalibrate
the needle valve.
Await end of
running-in phase.
Clean.
33
Fault
Cause
Remedy
Gas escaping from
the side of the
collector.
Flipper not installed in
vertical position.
Waste air vent (slit)
soiled.
Fit Flipper in an
upright position.
Clean.
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