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TDP021
d+e.doc
Rev.
29.10.2013
Seite
/
Page
18
/
20
Perrot
REGNERBAU
CALW
GmbH
Industriestrasse
19
‐
29
/
D
‐
75382
Althengstett
/
Germany
Phone:
+49
‐
7051
‐
162
‐
0
/
Fax
:
+49
‐
7051
‐
162–133
E
‐
/
E
‐
Technical
Department:
7.3
Break
‐
down
and
elimination
of
the
defects
Break
down
Cause
/
reason
Elimination
Valve
opens
/
closes
only
manual
not
by
electrical,
Control
signal
Coil
or
coil
seat
is
dirty
Remove
coil
and
clean
it,
see
point
7.1.
Supply
voltage
is
too
low
(24VAC/DC)
Check
supply
voltage
and
cable
connections
Coil
is
broken
Check
coil
resistance
(must
be
approx.
ca.
30
)
Plunger
in
coil
is
seated
Change
coil
Valve
does
not
open,
even
not
manual
Seal
of
valve
insert
is
defect
Change
valve
insert
(see
point
7.1.)
Exit
for
control
water
on
cylinder
of
the
valve
is
blocked
Disassembly
control
pipe
out
off
connection
and
blow
through
backwards
Valve
does
not
close,
even
not
manual,
Filter
for
control
water
is
dirty
Disassembly
valve
insert
and
clean
filter
or
change
it
(see
point
7.1.)
Leakage
in
the
control
water
path
Check
all
connections,
control
pipe
and
pressure
regulators
units
for
leakages
and
eliminate
them.
The
pressure
on
the
sprinkler
nozzle
is
too
low.
Valve
is
blocked
Disassembly
valve
and
flush
pipes
(see
point
7.1)
7.3.1
How
to
check
sprinklers,
which
do
not
open
LVZR
22
‐
3V
Check
solenoid
in
or
at
the
controller
for
efficient
operation.
Engage
valve
and
check
at
the
relief
exit
of
the
controller
for
a
brief
water
splash
to
come
out
Exchange
solenoid
at
the
controller
only
when
there
is
no
pressure
in
the
line
LVZR
22
‐
3VDC/AC
Check
that
the
solenoid
in
the
sprinkler
housing
clicks.
Check
outgoing
current
at
the
controller
to
be
24V.
Disconnect
solenoid
from
the
supply
cable
and
test
the
cable.
Exchange
solenoid
[19]
only
when
there
is
no
pressure
in
the
line.
Engage
valve
and
check
at
the
relief
exit
underneath
the
coil
for
a
brief
water
splash
to
come
out.
Flush
the
hydraulic
system
leading
to
the
solenoid.
Unscrew
the
solenoid
adapter
[18]
and
the
filter
[17]
whilst
there
is
no
pressure
in
the
line.
For
the
cleaning
procedure
apply
pressure
to
the
scheme.
Make
use
of
the
flushing
insert
[32]
for
this
operation.