Dennerle 160 Primus Notice D'emploi page 20

from the table. You should set this pH value +/- 0.1 by
adjusting the number of bubbles accordingly.
Example: Carbonate hardness 4 °d, recommended CO
20 mg/l = recommended pH 6.8
Too much CO
2
KH 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7.0 7.1 7.2 7.3 7.4 7.5
2 32 25 20 16 13
3 48 38 30 24 19
4 64 51 40 32 25
5 80 63 50 40 32
6 96 76 60 48 38
7 111 89 70 56 44
8 127 101 80 64 51
9
143 114 90 72 57
10 159 126 100 80 63
11 175 139 111 88 70
12 191 152 121 96 76
13 207 164 131 104 82
14 223 177 141 112 89
CO -content in mg/l
2
5 Care and maintenance
5.1 Replace the CO cylinder
2
• The pressure reducer can be unscrewed again at any time – the
cylinder valve closes automatically.
• Screw pressure reducer onto new disposable CO
The bubble count setting will be retained.
• Unscrew the pressure reducer when the cylinder is to remain out
of use for a prolonged period.
5.2 Testing the CO backflow check valve
2
The check valve protects your valuable pressure reducer/solenoid
valve from corrosion caused by back-flowing water. As dirt particles
may collect on the sealing surfaces over the course of time, the back-
flow check valve should be checked at least once a year and replaced
every 2-3 years for safety's sake.
Tip: Install a transparent test hose temporarily between backflow
check valve and pressure reducer/solenoid valve and shut down the
CO supply for 24 hours (close pressure reducer/solenoid valve). If
2
there is water in the test hose after this 24-hour period, this indicates
a leak on the backflow check valve.
The opening of the check valve can only be tested with CO
nimum pressure of approx. 0.3 bar is required to open the valve. It is
not possible to "blow through" the valve with your mouth.
Important note: Use only check valves designed for use with CO
as the special CO check valve from Dennerle. Standard air check
2
valves may become brittle through contact with CO
CO correct Not enough CO
2
pH
10 8 6 5 4 3
15 12 10 8 6 5
20 16 13 10 7 6
25 20 16 13 10 8
30 24 19 15 12 10
35 28 22 18 14 11
40 32 25 20 16 13
45 36 29 23 18 14
50 40 32 25 20 16
55 44 35 28 22 18
60 48 38 30 24 19
65 52 41 33 26 21
70 56 44 35 28 22
cylinder (see 2.1).
2
within only a short
2
space of time, resulting in leaks.
Corrosion damage on the pressure reducer/solenoid valve
content
as a result of water entering into the device is excluded
2
from the guarantee coverage.
5.3 Replacing the washer in the pressure reducer
There is a Longlife washer in the connection socket of the pressure reducer.
2
It is not normally necessary to replace this washer during the service
life of the pressure reducer. The seal can only be replaced using special
3 2
tools: Please send in the pressure reducer to Dennerle's Customer Service
4 3
department.
5 4
6 5
8 6
5.4 Cleaning and recalibrating the needle valve
9 7
10 8
There is a factory-calibrated needle valve in the hose connector of the
11 9
pressure reducer.
13 10
Should no CO
14 11
15 12
knob is turned to fully open position, this indicates that the needle valve
16 13
is probably blocked. In this case:
18 14
• Open the valve by turning by one half-turn in anti-clockwise direction
using a fine screwdriver (blade format 2 – 2.5 x 0.5 mm), then
"flush" with CO
open position.
Important: Do not unscrew valve completely! ©
• Close valve again by one half-turn.
• The valve is factory-set to approx. 120 bubbles per minute when
the setting knob is in fully open position. If necessary, it can be
recalibrated by carefully screwing it in or out in steps of approx.
1/8 of a turn.
5.5 Removing the CO
After prolonged service, the CO
the connector of the pressure reducer and other CO
remove the hose, it is best to lever it off using a small screwdriver. Do
not pull the hose off by force or cut it open with a knife, as this may
cause damage to the hose connectors! ©
5.6 Clean CO
• Remove CO
• Place the Flipper flat in your hand so that the suction clips are
pointing to the right. Slide front side panel of the Flipper upwards
by approx. 2 cm. ©
, as a mi- Fold out side panel. ©
•
2
• Take out CO
• Clean all parts with warm water and a soft sponge. Do not use
any cleaning agents.
, such
• Re-assemble Mini-Flipper via the reverse procedure.
2
IMPORTANT: Insert CO
located at the bottom stop.
be supplied although the cylinder is full and the setting
2
for a few seconds with the setting knob in fully
2
hose
2
hose may be very firmly attached to
2
28
Flipper
2
collector by pulling straight up. ©
2
30
31
hose, do not pull out. ©
2
hose in the side panel so that the end is
2
27
equipment. To
2
29
32
16