Dungs VPM-VC Manual - Página 6
Procurar online ou descarregar pdf Manual para Unidade de controlo Dungs VPM-VC. Dungs VPM-VC 10 páginas. Control unit for system leakage tests
Imprimir páginaInstallation examples
The functional principle must be selected in accordance with the local regulations
Prevent soiling by using appropriate gas filters
Use of pilot valves recommended
Please note: Switch positions � � � �
According to
EN1643, 1 filling or
1 emptying attempt
for max. 3 s into the
burner chamber is
admissible (DUNGS
as-delivered con-
figuration). At filling
and emptying times
�
of 1 s of the gas
main valves, max. 3
attempts are admis-
sible.
1a
Direct valve check via LGV, venting through roof
Valve check system component: VPM-VC, Pp, LGV
- - -
LGV
VPM VC
(NO)
P
p
GW 1
V1
V2
1b
Direct valve check via LGV, venting into the burner chamber
Valve check system component: VPM-VC, Pp, LGV
- - -
LGV
VPM VC
(NO)
P
p
GW 1
V1
V2
Notes regarding 1a, 1b, 2:
If a valve closed when not powered is replaced instead of a LGV (open when not powered), it must be connected
to output V2 (terminal 8).
When filling or
emptying attempts
are carried out via
pilot valves, the
situation described
in �, shows that
the specifications
of EN1643 are
also met with 10
�
filling or emptying
attempts if pilot
valves are used
that can reach at
most only 1/10 of
the maximum gas
flow of the main
valves.
GW1
V2
TR
N
VPM-VC
1 a + 1b
Direkte Ventilkontrolle
mit LGV
GW1
V2
TR
N
VPM-VC
1 a + 1b
Direkte Ventilkontrolle
mit LGV
If the valve check is
carried after a regu-
lar shutdown, the
system setup must
ensure that locking
the system prevents
a valve check during
a fault situation. This
can only be achieved
�
by safe interruption
of the power supply
to the VPM when a
fault occurs.
FA
Pp1
V1
LGV
N
FA
Pp1
V1
LGV
N
If this switch position
is used, parameter
setting should be
checked via the
VisionBox.
�
DIP-mode:
A: 1100
1001 �
0011 � �
B: xxxx
C: 1100
0110
0011 � �
Parameter:
---
Pp1
Pp2
L1
DIP-mode:
A: 1100
1001 �
0011 � �
B: xxxx
C: 1100 �
0110
0011 � �
Parameter:
---
Pp1
Pp2
L1
6 ... 10