Install Instructions

27 65-0100—2
12
Q7800
13
14
15
16
18
17
19
20
21
22
G
L2
9
8
7
6
5
4
3
10
F
S2
L2
A
M&D
P
6&7
M2523B
GENERAL FOOTNOTES, SEE PAGE 5.
A
A
B
B D
1234
578
15
C
C
D
B
C
7800 SERIES CONVERSION WIRING DIAGRAM
FROM________________________________ TO ______________________
(DEVICE TO BE MODERNIZED) (O.S. NUMBER OF RELAY MODULE TO BE USED)
L1 11
12
X
MAIN VALVE
10
IGNITION
TRANSFORMER
FOR DIRECT SPARK IGNITION 
(OIL OR GAS)
8
9
L2
5
3&13
R4150G1129(GP200) R4140G1189(GP201)
R4150L1078(GP300) R4140L1089(GP301)
RM7840E1016 OR RM7800E1010
RM7840L1018 OR RM7800L1012
IF Q520 SUBBASE TERMINAL 6 IS USED,
CONNECT RM7840, RM7800 FOR DIRECT 
SPARK IGNITION. NOTE: GP TERMINAL 6
PROVIDED INTERMITTENT PILOT;
RM7840L/RM7800L DOES NOT.

LOCATE LOW FIRE SWITCH CONNECTION
TO Q520 SUBBASE TERMINAL D AND
CONNECT TO Q7800 SUBBASE
TERMINAL 18.

LOCATE PREIGNITION INTERLOCK ON Q520
SUBBASE TERMINALS 3 AND 13. CONNECT
ONE LEAD TO Q7800 SUBBASE TERMINAL
20 AND THE OTHER LEAD TO Q7800
SUBBASE TERMINAL 4.

RM7840E/RM7800E CONNECT D TO Q7800
SUBBASE TERMINAL 4.

S1
8
10
18
17