Judo 8165020, Инструкция по установке и эксплуатации, Страница: 14 / 24

Operation
Before carrying out a backwash,
ensure that the wastewater con-
nection is functional.
At the end of the backwashing
process, turn the handwheel until
it engages so that no more back-
wash water escapes. Otherwise,
water may constantly escape and
cause water damage.
1. Turn handwheel counter-clockwise up to
stop. Backwashing water escapes.
2.
Turn handwheel clockwise up to stop.
Ensure that no water escapes.
The backwashing process is completed
(see chapter 4.2).
4.3 Conversions, changes
WARNING
Unauthorised conversions and
changes are forbidden for safety
reasons. These can impair the
functioning of the device, leading
to leaks and, in the worse case
scenario, to bursting of the device.
In the event of repairs, printed test marks
only remain valid when original spare parts
are used.
4.4 Maintenance, repair,
spare parts
WARNING
The device may only be repaired
by qualified technical personnel.
Only use original spare parts for
repairs.
Before performing work on the
device that goes beyond pure
operational use, the device
must be depressurised! If this is
ignored, the result may be uncon-
trolled egress of water result-
ing in water damage to the build-
ing/home.
4.4.1 Checking the backflow pre-
venter
WARNING
A defective backflow preventer
must be replaced immediately.
The backflow preventer may only
be replaced by trained technical
personnel.
The inlet pressure gauge is used to check
the function of the backflow preventer
(0 - 16 bar).
1. Close the stopcock or shut-off valve
upstream of the device.
2. Remove the pre-pressure gauge.
After a few seconds, no more water
may escape from the pressure gauge
connection.
3. Install the pre-pressure gauge again.
4. Open the stopcock or shut-off valve
upstream of the domestic water station
again.
4.5 Temporary removal of the
device
WARNING
If the device is removed due to an
interruption of operation:
•
Protect the flange surfaces
against damage to ensure proper
sealing.
•
Protect the device from dirt so
as not to impair drinking water
hygiene.
•
Store the device in a frost-free
place to prevent damage caused
by freezing water and leakage.
14 JUDO JPM-QC 1703301 • 2020/07