Honeywell RM7800L1087 - Page 11

RM7800L1087; RM7840G1022,L1075; EC7840L1014 RELAY MODULES WITH VALVE PROVING
11 66-1162—2
Fig. 7. Typical wiring subbase and sequence for RM7840G with Valve Proving enabled.
M24095
G
L2
3
4
5
6
7
8
9
10
F
(L1)
13
14
15
16
17
18
19
20
21
22
12
RUNNING INTERLOCKS
(INC. AIR FLOW SWITCH)
MASTER
SWITCH
LOW FIRE
START SWITCH
5 SECOND IGNITION
(EARLY SPARK
TERMINATION)
MAIN FUEL VALVE 1
BURNER MOTOR
(BLOWER)
HIGH FIRE
COMMON
LOW FIRE
MODULATE
120V ALARM
10 SEC. INTERRUPTED
PILOT/IGNITION
PREIGNITION
INTERLOCK
SERIES 90
FIRING RATE
MOTOR
SERIES 90
CONTROLLER
FLAME DETECTOR
120V, 50/60 Hz POWER SUPPLY. PROVIDE DISCONNECT
MEANS AND OVERLOAD PROTECTION AS REQUIRED.
DO NOT WIRE TO ANY UNUSED TERMINALS.
SEE FLAME DETECTOR INSTALLATION INSTRUCTIONS
FOR CORRECT WIRING.
JR3 INTACT FOR DSI FUNCTION.
FOR DIRECT SPARK IGNITION (OIL
OR GAS)
IGNITION
TRANSFORMER
MV1
R
W
B
R
W
B
L1
(HOT)
L2
1
9
10
L2
Q7800
MAIN
VALVE 2
MV2
21
1
2
3
4
4
3
3
VALVE PROVING
SWITCH
2
RECYCLE LIMITS
BURNER CONTROLLER
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.
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
17
TO
7
20TO
5
18
TO
13 15
TO
13 12
TO
M24096B
INTERLOCK. CHECK
13 14
TO
13 14
TO
4
L1
MAIN VALVE 1
9
TIMED
PREPURGE
POWER
FLAME
MAIN
PILOT
ALARM
POWER
FLAME
MAIN
PILOT
ALARMALARMALARMALARM
00
IC
PII
SSC
LED
DISPLAY
RM7840G SWITCHING
MAIN VALVE 2
1
1 2
2
JR3 REMOVED FOR PILOT SEQUENCE MV2 IS MAIN VALVE CLOSEST TO THE BURNER