Judo JPM, Инструкция по установке и эксплуатации, Страница: 16 / 28

16 JUDO PROMI
Operation
5.5.2 Backflow Preventer Testing
JPM ¾"
-
1¼"
The hollow-bolt of the inlet-pressure gauge
(0–16 psi). serves as a control-screw to test
the function of the backflow- preventer
Remove the lateral screw cover and
unscrew the control-screw by means of an
Allen key.
Attention: When screwing-in the hollow-bolt.
It has to be straightly -positioned and -
screwed in, to avoid damage to the plastic
threads.
JPM
1½" - 2"
The inlet-pressure gauge serves as a
control-srew to test the fuction of the back-
flow-preventer. To replace the backflow
preventer, the lower cap (11) has to be
unscrewed and screwed in again after
replacement has been made.
5.6 Stoppages
ATTENTION
(see chapter “Safety information and
dangers due to non-compliance”)
If a filter has to be removed from the flange
or unscrewed, the chapter "Intended use"
has to be observed!
– Protect the flange surfaces from
damage! Damaged flange surfaces
cannot close tight any longer. As a
result, escaping water can damage the
building and installations.
– Store the filter in frost-free conditions!
The water contained in the filter can
freeze due to frost and thus the filter can
be mechanically damaged to a degree
that it will become untight at operating
pressure or that it can burst. Leaking
water can cause major material-
damages to the building and personal
injury can occur.
– When recommissioning the filter, strictly
comply with the instructions given in this
manual.