RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES

66-1085—04 8

Fig. 3. Wiring subbase and sequence for RM7800G/RM7840G.

RM7800G/RM7840G

POWER
OPERATING
CONTROLS
AND
INTERLOCKS
BURNER
FLAME
SIGNAL
FIRING
RATE
MOTOR
INITIATE
(INITIAL
POWERUP
ONLY)
POWER
STANDBY
PREPURGE
HOLD
DRIVE TO
LOW FIRE
POWER
PILOT
FLAME
MAIN
POWER
PFEP
10 SEC.
(4 SEC. IF
JR1
CLIPPED
PILOT
FLAME
MAIN
POWER
MFEP
PILOT
FLAME
MAIN
RUN
POWER
POSTPURGE
POWER
STANDBY
00 00 10 25 00 1520
MOTOR ACTION
BURNER/BLOWER MOTOR
IGN.
15/30 SEC. INTERRUPTED/INTERMITTENT PILOT VALVE
LIMITS AND BURNER CONTROLLER CLOSED
RUNNING INTERLOCKS CLOSED
PREIGNITION INTERLOCK CLOSED
LOW FIRE SW.
SAFE START CHECK FLAME PROVING
10 SEC. IGN./PILOT 8
10
5
5 SEC.
21
6
TO
7TO
20TO
518
TO
13 15
TO
13 12
TO
M12264A
INTERLOCK. CHECK
13 14
TO 13 14
TO
4
6
L1
MAIN VALVE 9
TIMED
PREPURGE
POWER
FLAME
MAIN
PILOT
ALARM
POWER
FLAME
MAIN
PILOT
ALARMALARMALARMALARM
00
IC
PII
SSC
LED
DISPLAY
RM7800/7840G SWITCHING