Honeywell RM7800L1087 Installation Instructions Manual page 12

RELAY MODULES WITH VALVE PROVING
120V ALARM
BURNER MOTOR
(BLOWER)
RECYCLE LIMITS
BURNER CONTROLLER
RUNNING INTERLOCKS
(INC. AIR FLOW SWITCH)
10 SEC. INTERRUPTED
PILOT/IGNITION
MAIN FUEL VALVE 1
5 SECOND IGNITION
(EARLY SPARK
TERMINATION)
FLAME DETECTOR
INITIATE
(INITIAL
POWERUP
ONLY)
LED
DISPLAY
BURNER
OPERATING
CONTROLS
AND
INTERLOCKS
FLAME
SIGNAL
FIRING
RATE
MOTOR
1
Fig. 7. Typical wiring subbase and sequence for RM7840G with Valve Proving enabled.
32-00142—01
Q7800
HIGH FIRE
12
G
COMMON
L2
13
LOW FIRE
3 14
MODULATE
4 15
(L1)
5 16
17
6
3
7 18
8
19
9 20
21
10
F 22
3
00 00
TIMED
PREPURGE
STANDBY
POWER POWER POWER
PILOT
FLAME
MAIN
ALARM
BURNER/BLOWER MOTOR
LIMITS AND BURNER CONTROLLER CLOSED
INTERLOCK. CHECK RUNNING INTERLOCKS CLOSED
PREIGNITION INTERLOCK CLOSED
SAFE START CHECK
RM7840G SWITCHING
13 12
TO
MOTOR ACTION
JR3 REMOVED FOR PILOT SEQUENCE
SERIES 90
FIRING RATE SERIES 90
MOTOR
CONTROLLER
B B
R R
W W
VALVE PROVING
SWITCH 2
LOW FIRE
START SWITCH
1
120V, 50/60 Hz POWER SUPPLY. PROVIDE DISCONNECT
MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
DO NOT WIRE TO ANY UNUSED TERMINALS.
PREIGNITION
3 SEE FLAME DETECTOR INSTALLATION INSTRUCTIONS
INTERLOCK
FOR CORRECT WIRING.
MAIN 4
JR3 INTACT FOR DSI FUNCTION.
VALVE 2
L1
(HOT)
1
L2
MASTER
SWITCH
RM7840G
PREPURGE PFEP
HOLD 10 SEC.
00 10 20
DRIVE TO (4 SEC. IF
LOW FIRE JR1 CLIPPED MFEP
POWER POWER POWER
PILOT
PILOT PILOT
FLAME FLAME
FLAME
MAIN MAIN
MAIN
ALARM ALARM ALARM
10 IGN. 5 SEC.
10 SEC. IGN./PILOT 8
MAIN VALVE 2
MAIN VALVE 1
TO
L1
4 TO 20
LOW FIRE SW. 5 TO 18
FLAME PROVING
13 14
TO
2 MV2 IS MAIN VALVE CLOSEST TO THE BURNER
12
FOR DIRECT SPARK IGNITION (OIL
OR GAS)
IGNITION
10
TRANSFORMER
MV1
9
MV2
21
M24095
25 00 15
RUN POSTPURGE STANDBY
POWER POWER POWER
PILOT
FLAME
MAIN
ALARM
5
1
21
2
9
17
7 IC
PII
SSC
13 15
TO
TO
13 14
M24096B
L2
4