Care And Maintenance; Special Information - Dennerle Profi-Line CO2 Comfort Notice D'emploi

CO Night Cut-Off Valve Comfort
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CO solenoid valve to control the supply of CO
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- Instructions for use: Please read carefully and keep in a safe place. -
Congratulations on buying this high-quality CO night cut-off valve from DENNERLE.
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If used properly and treated with due care, this valve will provide a simple, convenient and precise means of controlling the supply of CO
aquarium - the essential basis for fantastic plant growth. DENNERLE wishes you lasting enjoyment from your aquarium!
Safety instructions
• For 230 V AC / 50 Hz only. • For indoor use only.
• The connecting lead of the night cut-off valve cannot be replaced.
Valves with damaged leads may no longer be used.
• Please also observe the instructions for use of the other components belonging to your CO
Example set-up
A
B
CO cylinder
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CO pressure reducer
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Special CO Softflex hose
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CO night cut-off valve Comfort
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Special CO check valve
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CO diffusor
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Timer
pH controller
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Profi-Line
. Saves valuable CO .
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fertilizer system.
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1 How the CO night cut-off valve
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works
The DENNERLE CO night cut-off valve enables automatic control of the
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CO supply in either of 2 ways, thereby saving valuable CO
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A With a timer*:
The timer cuts off the supply of CO overnight, as aquarium plants
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do not require any CO during the night.
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TIP: Simply connect the CO night cut-off valve to the timer which
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controls your aquarium lighting.
B With digital pH controller 588 Comfort* from
DENNERLE:
This controller continuously measures the pH value in the aquari-
um and controls the required supply of CO
electronic precision.
*Not included in the scope of delivery. Available from specialist retailers.
2 What's what
Mains lead
CO supply from pressure reducer
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Indicator lamp
CO outlet to aquarium
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Mounting plate
Special CO
Special CO
GB
3 Correct connection of the CO
cut-off valve Comfort:
to your
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:
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automatically with
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4 The right amount of CO
For magnificent plant growth, DENNERLE recommends a CO
the aquarium of between 15 and 30 mg/l, whereby 20 to 25 mg/l
is ideal. The number of bubbles per minute required to achieve this
level of CO depends on a variety of factors, such as the types of plants
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in the aquarium, motion of the water, surface area/volume ratio, etc.
The appropriate CO
dually for the specific aquarium concerned.
Rule of thumb for the basic setting: Begin at approx. 10 bubbles per
minute per 100 l of aquarium water, i.e. 2 x 10 = 20 bubbles per
minute for a 200 l aquarium. Check the CO
tent level in the aquarium water regularly, adjusting the CO
as necessary. Caution: Should it be necessary to increase the CO
ply rate, this should only be done slowly, increasingly the level gra-
dually over several days!
Softflex hose
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check valve
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Professional tip from DENNERLE:
night
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•
• Screw mounting plate into place on
the wall or in the base cabinet, with
the guideway at the top.
• Connect the hose coming from the
pressure reducer to the hose connec-
tor which is located on the left of the

5 Care and maintenance

CO cut-off valve, as seen from the
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front. For this purpose, unscrew the
5.1 Cleaning the CO
coupling ring and fit to the end of the
Use a moist cloth and a mild detergent.
hose. Slide hose onto hose connector

5.2 Special information

(TIP: moisten beforehand - hose will
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then slide on more easily!) and
retighten coupling ring.
• The special CO check valve is alrea-
•
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dy fully assembled. Connect the hose
leading to the CO diffusor to the
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other hose connector of the check
valve.
• Slide night cut-off valve into the gui-
5.3 Testing the CO
deway on the mounting plate from
The check valve protects the pressure reducer and night cut-off valve
above.
from corrosion caused by back-flowing water. It will operate reliably
over a long period. However, as dust and metal particles may collect on
• Connect mains plug to timer or pH
the sealing surfaces over the course of time, the check valve should be
controller. When the power supply is
examined every 2 years at the latest and replaced if necessary.
connected to the night cut-off valve,
the green indicator lamp lights up,
Examination procedure:
the valve is open and CO is supplied.
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•
•· After 24 hours, unscrew the coupling ring on the side of the check
•
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level in
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•
Don't worry: An effectively functioning aquarium will normally have no
problem coping without a CO
Important note: Use only check valves designed for use with CO
supply level thus requires to be determined indivi-
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as the special CO
ves may become brittle through contact with CO
space of time, resulting in leaks. This usually goes unnoticed.
supply and the CO con-
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supply rate
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sup-
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The CO long-term test Correct from DENNERLE provides
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the simplest means of measuring the CO content in the aquari-
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um. This test indicates the CO content in the aquarium water
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directly and continuously in mg/l by means of its colouring.
GREEN corresponds to the ideal level of 20 to 25 mg/l. No other
devices or water measurements are required in order to determi-
ne the CO content!
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night cut-off valve
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Do not screw the CO night cut-off valve onto thin wooden panels
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or similar, as these may act as a sounding board and cause hum-
ming noises.
The CO night cut-off valve may only be used in combination with
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genuine pressure reducers, such as the Profi 500, Profi 2000,
Compact, Professional and Exclusive pressure reducers from DEN-
NERLE. Simple throttle valves are not permissible, as the maxi-
mum permissible operating pressure of 7 bar may be exceeded.
check valve
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Close needle valve on CO pressure reducer.
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valve facing the night cut-off valve.
Carefully lever off CO hose and check whether any water has
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entered into the hose. If so: Replace check valve. If not:
Reconnect hose to check valve.
Reset number of bubbles.
supply for 24 hours.
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, such
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check valve from DENNERLE. Standard air check val-
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within only a short
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5.4 Important note on the CO
hose
The special Softflex CO hose is self-sea-
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ling and self-locking for maximum safety.
Always lever off the hose with a scr-
ewdriver, DO NOT pull of!
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