Honeywell 7800 Series Product Data page 10

7800 SERIES RM7896A,B,C,D RELAY MODULE
5
RUN/TEST
SWITCH
RESET
PUSHBUTTON
STATUS LEDs
LIMITS CONTROLLER
DDL
DDL
COMMUNICATIONS
1 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 6. Internal block diagram of the RM7896 (see Fig. 7 and 8 for detailed wiring instructions).
65-0193
CONFIGURATION
JUMPERS
MICROCOMPUTER
RELAY
DRIVE
CIRCUIT
SAFETY RELAY
1K
CIRCUIT
LOCKOUT
INTERLOCK
7
6
6K1
3K1
OPTIONAL KEYBOARD
DISPLAY MODULE
RS485
1
2
REMOTE
3
RESET
L1
(HOT) L2
1
120 Vac
PLUG-IN PURGE
TIMER CARD
FLAME SIGNAL
PLUG-IN
FLAME
AMPLIFIER
TEST
2K
3K
RELAY
4K STATUS
FEEDBACK
5K
AND LINE
6K
VOLTAGE
INPUTS
7K
CONTROL
POWER SUPPLY
POWER
1K1 2K1 5K1
10
4K1
8
7K1
21
2K2
9
4
3
INDICATES FEEDBACK SENSING
TO RELAY STATUS FEEDBACK
AND LINE VOLT INPUTS
FIELD WIRING
INTERNAL WIRING
10
L2
TEST
JACK
F
G
22
IGNITION
PILOT
PILOT/V2
MAIN VALVE
BLOWER
ALARM
M5110B