15
GB
Replacing the valve insert
HWS only
Close shut-off valves before and after the
domestic water station and relieve the pressure
at both sides. Loosen the locking screw (
9
) and
turn the rotary button (
10
) in an anticlockwise
direction up to the stop. Screw off the spring hood
(
7
) with a ring spanner. Remove the valve insert
(
11
) and the sliding ring (
12
).
Coat the O-rings of the new valve insert with
silicone grease and insert the valve insert in the
body, at the same time ensuring the correct
installation of the O-rings. Insert the sliding ring
and screw on the locking screw. Adjust the pres-
sure reducing valve, as described under
Startup.Maintenance
All technical equipment requires regular mainte-
nance. According to DIN 1988, maintenance must
be carried out by expert technical staff who also
replaces the parts subject to wear and tear. We
therefore recommend closing a maintenance con-
tract.
Maintenance must be carried out once a year, or
twice a year for communal installations. It is to be
carried out by the installer or manufacturer.
Warranty
In the event of malfunction during the warranty
period please contact our Customer Service and
state the filter type and the production number
(see Specifications or rating plate).
Any warranty work may only be carried out
by our Customer Service.
Warranty work to be carried out by an external
specialist firm requires the express consent of
our Customer Service Manager.
12
11
9
10
7
8
