Honeywell 7800 Series Manual page 14

RM7840E,G,L,M
WIRING
Fig. 9—Wiring RM7840L.
WHITE
YELLOW
1
2
120V ALARM
BURNER MOTOR
(BLOWER)
BURNER
CONTROLLER/LIMITS
LOCKOUT INTERLOCKS
(INC. AIR FLOW SWITCH)
10 SEC. INTERRUPTED
PILOT/IGNITION
MAIN FUEL
VALVE(S)
5 SECOND IGNITION
(EARLY SPARK
TERMINATION)
RECTIFYING FLAME
ROD, RECTIFYING
PHOTOCELL, OR INFRA-
RED (LEAD SULFIDE)
FLAME DETECTOR
OR
C7027A, C7035A, OR
BLUE
C7044A ULTRAVIOLET
FLAME DETECTOR
OR
C7012A,C,E,F OR
BLUE
C7076A,D ULTRAVIOLET
FLAME DETECTOR
WHITE
WHITE
BLACK
BLACK
120V, 60 Hz POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
DO NOT WIRE TO ANY UNUSED TERMINALS.
SERIES 90
FIRING RATE
MOTOR
Q7800
HIGH FIRE
G 1 B
2
COMMON
L 1 R
2 3
LOW FIRE
1 W
3
4
MODULATE
4 (L1 1
)
5
5
1
6
6
1
7
LOW FIRE
7
1
START SWITCH
8
HIGH FIRE
8 1
PURGE SWITCH
9
PREIGNITION
2
9
INTERLOCK
0
15 SECOND
1 2
INTERRUPTED
0
1
PILOT VALVE
F
2
2
MASTER
SWITCH
FOR DIRECT SPARK IGNITION (OIL
OR GAS)
1
0
8
9
L2
L1
L2
14
SERIES 90
CONTROLLER
B
R
W
2
L1
(HOT)
1
L2
IGNITION
TRANSFORMER
L
2
MAIN VALVE
M1979A