Honeywell RM7840L User Manual

RM7840E,G,L,M
WIRING
14
Fig. 9—Wiring RM7840L.
M1979A
G
L
2
3
4
5
6
7
8
9
1
0
F
(L1
)
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
2
1
2
LOCKOUT INTERLOCKS
(INC. AIR FLOW SWITCH)
MASTER
SWITCH
LOW FIRE
START SWITCH
HIGH FIRE
PURGE SWITCH
5 SECOND IGNITION
(EARLY SPARK
TERMINATION)
MAIN FUEL
VALVE(S)
BURNER
CONTROLLER/LIMITS
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
RECTIFYING FLAME
ROD, RECTIFYING
PHOTOCELL, OR INFRA-
RED (LEAD SULFIDE)
FLAME DETECTOR
C7027A, C7035A, OR
C7044A ULTRAVIOLET
FLAME DETECTOR
C7012A,C,E,F OR
C7076A,D ULTRAVIOLET
FLAME DETECTOR
120V, 60 Hz POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
DO NOT WIRE TO ANY UNUSED TERMINALS.
FOR DIRECT SPARK IGNITION (OIL
OR GAS)
IGNITION
TRANSFORMER
MAIN VALVE
R
W
B
R
W
B
L1
(HOT)
L2
1
OR
OR
BLUE
BLUE
WHITE
YELLOW
L2
WHITE
WHITE
BLACK
BLACK
L1
L2
8
9
1
0
L
2
1
Q7800
15 SECOND
INTERRUPTED
PILOT VALVE
2
2

Honeywell RM7840L Specifications

General

Brand	Honeywell
Model	RM7840L
Category	Control Unit
Language	English