Install Instructions

RM7898A 7800 SERIES VALVE PROVING PRIMARY RELAY MODULES
66-1161—04 24
Gas Direct Spark Ignition during VPS Selection (powering terminal 19) automatically chooses 4 second Ignition Trial Period,
regardless of configuration of resistor JR1 status.
CAUTION
The above options are ONLY suggestions—BE SURE to check local approval agencies for timings acceptable for
your application.
RM7898A IGNITION OPTIONS
NOTE: For the following images, N.C. = Not Connected.
Direct Spark Ignition Direct Spark Ignition L 2
VALVE PROVING
Single Fuel
10 Sec. Interrupted PIlot M - -
Intermittent Pilot N - -
Direct Spark Ignition O - -
Dual Fuel
Gas Oil P 2
10 sec. Interrupted Pilot 10 sec. Interrupted Pilot Q 3
10 sec. Interrupted Pilot Direct Spark Ignition R 4
10 sec. Interrupted Pilot Direct Spark Ignition S 3
Intermittent Pilot 10 sec. Interrupted Pilot T 3
Intermittent Pilot Direct Spark Ignition U 4
Direct Spark Ignition 10 sec. Interrupted Pilot V 3
Direct Spark Ignition Intermittent Pilot W 3
Direct Spark Ignition Direct Spark Ignition X 3
Table 16. Ignition options. (Continued)
IGNITION OPTIONS DRAWING I.D. CODE FUEL CHANGEOVER POLES REQUIRED
NO VALVE PROVING
A. SINGLE FUEL: 10 SECOND INTERRUPTED PILOT
T21
T9
MV
L2
T8
PV
LIMITS
OP.
CONTROL
T6
INTERLOCKS
T7
L1
T17
NC
NC
T19 (IP SEL.)
T18 DSI-VP SEL.
M23829
B. SINGLE FUEL: INTERMITTENT PILOT
T21
T9
MV
L2
T8
PV
LIMITS
OP.
CONTROL
T6
INTERLOCKS
T7
L1
T17
L1
NC
T19 (IP SEL.)
T18 DSI-VP SEL.
M23830
C. SINGLE FUEL: DIRECT SPARK IGNITION
T21
T9
L2
T8
LIMITS
OP.
CONTROL
T6
INTERLOCKS
T7
L1
T17
L1
NC
T19 (IP SEL.)
T18 DSI-VP SEL.
M23831
MV