Grohe 31 345, Manual

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5
Flush filter cartridge , see fold-out page III, Fig. [12].
Open handle and press flush button on the filter head in
order to flush the filter system. Continue flushing until the
water emerging from the hose is clear and free of bubbles
(at least 2 litres).
Operation / Commissioning
Open lever in order to draw hot and cold tap water, see
fold-out page III, Fig. [13].
Open handle to draw off filtered GROHE Blue ® water.
Control unit , see fold-out page II, Fig. [11].
The buttons perform the following functions:
Filter replacement reset
U Filter size selection
c Carbonate hardness adjustment
Display , see fold-out page II, Fig. [11].
In the inactive state, the remaining filter capacity is displayed
in percent.
Display of filter capacity in handle:
Set carbonate hardness at filter head , see Fig. [14].
The relevant water supplier can provide information on the
carbonate hardness.
The filter head can be swivelled forwards by up to 90° in the
wall holder to install the cartridge.
Set carbonate hardness at bypass setting of filter head to local
conditions, see table column A on fold-out page IV.
The set value for water hardness must also be set in the
control unit, see section
Putting into service .
Setting carbonate hardness on control unit , see table
column B on fold-out page IV and Fig. [11].
c
button for carbonate hardness adjustment:
• Press the
c
button once:
The display switches from the remaining filter capacity to the
value currently set for the carbonate hardness.
• Keep the
c
button pressed:
After approx. 3 seconds, the value currently set for the
carbonate hardness starts to flash.
• Release the
c
button within the next 10 seconds:
The value currently set for the carbonate hardness starts to
flash.
• Press the
c
button and select the required value:
- C1: carbonate hardness 25 - 35 (bypass 20%)
- C2: carbonate hardness 18 - 24 (bypass 30%)
- Factory setting:
C3: carbonate hardness 14 - 17 (bypass 40%)
- C4: carbonate hardness 12 - 13 (bypass 50%)
- C5: carbonate hardness 10 - 11 (bypass 60%)
- C6: carbonate hardness 7 - 9
(bypass 70%)
• Press and hold the
c
button at the required value
for 3 seconds:
The display of the value switches from flashing to
continuous illumination and the value is set.
Release the c button:
The remaining filter capacity is displayed again:
The litre capacity of the cartridge varies according to the water
hardness set and the size of the cartridge, see table on fold-
out page IV.
The control unit of the GROHE Blue
®
fitting is set for operation
with the 600 litre filter cartridge (Prod no.: 40 404) at the
factory.
For operation with the 3,000 litre filter cartridge
(Prod. no.: 40 412), or 1,500 litre filter cartridge
(Prod no.: 40 430) the control unit must be adapted.
Setting filter size , see fold-out page II, Fig. [11].
U button for filter size selection:
• Press U button once.
The display switches from the remaining filter capacity to the
value currently set for the filter size.
• Keep the U button pressed:
After approx. 3 seconds, the value currently set for the filter
size starts to flash.
• Release the U button within the next 10 seconds:
The value currently set for the filter size starts to flash.
• Press the U button and select the filter size:
- F1: 600 litres
- F2: 1,500 litres
- F3: 3,000 litres
• Press and hold the U button at the required value
for 3 seconds:
The display of the value for the filter size switches from
flashing to continuous illumination and the filter size is set.
Release the U button:
The remaining filter capacity is displayed again:
The fitting is now fully installed and ready for operation.
Note: The various filter cartridges can be ordered at
www.grohe.com .
Maintenance
Resetting filter capacity after changing filter cartridge , see
fold-out page II, Fig. [11].
button for filter replacement reset:
The remaining filter capacity is displayed:
• Press button
The display switches from the remaining filter capacity to rF .
• Keep the button pressed:
After approx. 3 seconds, rF starts to flash.
• Release the button within the next 10 seconds and press
again:
rF flashes first and then illuminates continuously.
• Release the button:
The remaining filter capacity is reset and then displayed
again.
Flashing signal Meaning
Filter capacity of more than 10%
Filter capacity of less than 10%
Order filter cartridge
Filter capacity of less than 1%
Change filter cartridge soon
No filter capacity Change filter
cartridge
immediately