Installation; Operation - BWT F1 RSF Bedienungsanleitung

5. Installation

Install filter according to its nominal width in cold
water pipes of the same dimensions and before the
equipment to be protected. Install stop valves before
and after the filter.
Install connecting module in the direction of flow in
the horizontal or vertical cold water pipe (observe
direction of flow arrow).
I. Turn the retaining ring to the left until it stops.
II. Push the unit's catches into the recesses.
III. Rotate the unit by 45º clockwise until it stops.
IV. Pull the retaining ring with both hands towards
the unit until it locks into place. The unit is now
protected against accidental twisting.
To loosen the filter, press the retaining ring towards
the connecting module.
Route the waste water connection (see page 2,
Fig. 3) with tube to the sewage channel, so that
no backlog created, or provide a collection basin
(capacity approx. 10 l).
Please note: The flushing water hose must be ins-
talled at a minimum distance of 20mm to the highest
possible waste water level (free discharge).
Fig. 7
5506_EBA_BWT F1 Version 17.indd 9
6. Startup
Check the flushing water line for correct and proper
installation. The shut-off valves must not be opened
yet. Check the transparent cylinder (3) to ensure
correct fit and close rotary button for backwashing
element (5) clockwise.
Slowly open the shut-off valves before and after the
domestic water station and deaerate the piping at
the next tapping point after the domestic water sta-
tion.
Open the rotary button (5) anticlockwise and after
removing approx. 5 litres close it again. Check the
filter for leaks.
HWS only
The pressure reducing valve is factory set to a back
pressure of 4 bar. In order to change the back
pressure, loosen the locking screw (9) and turn the
rotary button for pressure reducing valve (10).
The back pressure can be changed by turning the
rotary button (10) (control range 2 - 6 bar).
Turning in a clockwise direction = higher back pres-
sure.
Turning in anticlockwise direction = lower back pres-
sure.
When installing the pressure reducing valve, taking
note of the flow direction arrow on the valve body.
The indicator for the back pressure setpoint (8) is a
standard value. The pressure gauge (6) shows the
pressure precisely. During setting, a draw-off tap
after the pressure reducing valve must be opened
briefly several times and closed again.
When water is drawn off, the back pressure drops
temporarily.
The back pressure must not exceed 80% of the ini-
tial pressure of the hot water safety valve (DIN EN
1988-200).

7. Operation

Change the back pressure, see Startup.
Backwashing must be carried out once per month
in order to prevent the settling of impurities on the
filter fabric (in case of severe pollution possibly more
often). If there is a noticeable drop of the pressure
caused by increasing pollution of the filter cloth, the
filterelement must be backwashed, after 6 months at
the latest. As a reminder the next backwash can be
adjusted on the memory-ring (3).
Before backwashing, provide a collecting basin, if
the flushing water connection is not connected to the
sewage system.
EN
9
22.01.14 14:56