Honeywell RM7838B User Manual

RM7838B,C 7800 SERIES RELAY MODULE
66-1094—08 10
Fig. 3. Wiring subbase for RM7838B,C with S445 Start-Stop Station (not the RM7838C1020).
M15101D
G
L2
3
5
6
7
8
9
10
F
4
(L1)
13
14
17
18
19
20
21
22
12
16
15
LIMITS
MAIN FUELVALVE(S)
INTERMITTENT/
10 SECOND
INTERRUPTED
PILOT/IGNITION
120V, 50/60 HZ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
SHUTTER CHECK FLAME DETECTION SYSTEM REQUIRED WHEN USING THE PILOT VALVE HOLD FUNCTION.
SEE FLAME DETECTOR INSTALLATION INSTRUCTIONS FOR CORRECT WIRING.
15 SECOND FOR RM7838C.
ALARM SILENCING SWITCH NOT NEEDED FOR RM7838C APPLICATIONS.
120V ALARM
L1
(HOT)
L2
MASTER
SWITCH
1
FLAME DETECTOR
1
Q7800 SUBBASE
DPST ALARM
SILENCING SWITCH
STOP
B
A
START
D
C
HIGH FIRE
COMMON
LOW FIRE
MODULATE
B
R
W
SERIES 90
FIRING RATE
MOTOR
B
R
W
SERIES 90
CONTROLLER
PILOT VALVE
HOLD
MANUAL VALVE
OPEN SWITCH
LOW FIRE
START SWITCH
HIGH PURGE
RATE SWITCH
PREIGNITION
INTERLOCK
5 SECOND IGNITION
(EARLY SPARK
TERMINATION)
COMBUSTION
BLOWER AFS
RECIRCULATING
AFS
BURNER
CONTROL
RECIRCULATING
BLOWER
COMBUSTION
AIR FAN
S445
2
3
4
3
4
2
5
5
maxon.su

Honeywell RM7838B Specifications

General

Brand	Honeywell
Model	RM7838B
Category	Computer Hardware
Language	English