RM7898A 7800 SERIES VALVE PROVING PRIMARY RELAY MODULES
31 32-00209—03
SAFETY AND SECURITY
Physical device protection
Device shall be accessible to authorized personnel only –
Installation on publicly accessible places is not
recommended as this could lead to unwanted and
potentially unsafe changes to device (wiring,
configuration, etc).
It is recommended to lock the device in an enclosed
cabinet with access allowed only to approved and trained
personnel. Also, it is strongly advised to keep all the wiring
of device physically secure.
Physical protection of the device is applied via Run/Test
switch label/seal. It is intended to prevent and detect
unauthorized access.
Modbus & DDL Interface security
Any conducts critical to device functionality (DDL,
Modbus lines etc.) shall be physically protected (installed
outside public access) since they could be damaged or
tampered-with by unauthorized people, either
accidentally or for purpose.
Modbus RS-485 & DDL protocols do not support security
features. For DDL interface - only DDL devices shall be
connected to the Burner Controller DDL line.
License agreement
Copying and reverse engineering is prohibited by the law.
L1
LIMITS
OP.
CONTROL
GAS
INTERLOCKS
OIL
INTERLOCKS
T7
T9
GAS MV1
OIL MV
L2
L1
T8
PV
T19
(IP SEL.)
T17
OIL
GAS
L1
GAS MV2
T21
IF EA IS USED THEN
GAS/OIL SWITCHING IS
ALSO NEEDED HERE.
M23850
T8 IS NOT TURNED ON
WHEN GAS IS THE
SELECTED FUEL IF
T18 IS ON.
W. VALVE PROVING, DUAL FUEL: GAS DSI,
OIL INTERMITTENT PILOT
T6
T18 DSI-
VP SEL.
1
1
REQUIRED WIRING IF VALVE PROVING
BOTH, SPLIT, OR AFTER IS SELECTED
M23851
T9
L2
T8
GAS MV1
OIL MV
T21
GAS MV2
VP
LIMITS
OP.
CONTROL
GAS
INTERLOCKS
OIL
INTERLOCKS
T7
L1
T19
(IP SEL.)
T18 DSI-
VP SEL.
NC
L1
IF EA IS USED THEN
GAS/OIL SWITCHING IS
ALSO NEEDED HERE.
T17
OIL
GAS
T6
X. VALVE PROVING, DUAL FUEL: GAS IS DIRECT
SPARK IGNITION, OIL IS DIRECT SPARK
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