Honeywell RM7838B User Manual

RM7838B,C 7800 SERIES RELAY MODULE
11 66-1094—08
Fig. 4. Wiring subbase for RM7838B,C with separate Start and Stop Stations (not the RM7838C1020).
M15100C
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 FUEL
VALVE(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.
ALTERNATIVE WIRING FOR 4-20 MA SYSTEM.
SEE FLAME DETECTOR INSTALLATION INSTRUCTIONS FOR CORRECT WIRING.
120V ALARM
L1
(HOT)
L2
MASTER
SWITCH
1
FLAME DETECTOR
1
Q7800 SUBBASE
DPST ALARM
SILENCING SWITCH
STOP
START
HIGH FIRE
COMMON
LOW FIRE
MODULATE
B
R
W
SERIES 90
FIRING RATE
MOTOR
B
R
W
SERIES 90
CONTROLLER
HIGH FIRE
COMMON
LOW FIRE
MODULATE
F
–
++
M7284 4-20 mA
FIRING RATE
MOTOR
–
OUTPUT
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
BLOWER
3
4
2
2
3
4
5
ALARM SILENCING SWITCH NOT NEEDED FOR RM7838C APPLICATIONS.
5
maxon.su

Honeywell RM7838B Specifications

General

Brand	Honeywell
Model	RM7838B
Category	Computer Hardware
Language	English