Honeywell RM7895A1014 Installation Instructions Manual page 4

RM7895A,B,C,D/EC7895A,C; RM7896A,C,D 7800 SERIES RELAY MODULES
1
PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
2
LOCKOUT IF JUMPER JR2 REMOVED.
INDICATES FEEDBACK SENSING
TO RELAY STATUS FEEDBACK
AND LINE VOLT INPUTS
FIELD WIRING
INTERNAL WIRING
OPTIONAL KEYBOARD
DISPLAY MODULE
DDL
DDL
COMMUNICATIONS
M23996
Fig. 1. Internal block diagram of RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D
32-00156—01
5
RUN/TEST
SWITCH
RESET
PUSHBUTTON
STATUS LEDs
LIMITS
RS485
6K1
1
2
REMOTE
3K1
3
RESET
(see Fig. 2 and 3 for detailed wiring instructions).
L1
(HOT)
1
RM7895, RM7896: 120 VAC, 50/60 HZ.
EC7895A,C: 220-240 VAC, 50/60 HZ.
CONFIGURATION
JUMPERS
MICROCOMPUTER
2K
3K
RELAY
DRIVE 4K
CIRCUIT
5K
6K
7K
SAFETY RELAY
1K
CIRCUIT
POWER SUPPLY
7
6
CONTROLLER INTERLOCK
(INCLUDING
AIRFLOW SWITCH)
2
4
L2
PLUG-IN PURGE
TIMER CARD
TEST
FLAME SIGNAL
JACK
F
PLUG-IN
TEST
FLAME G
AMPLIFIER
22
RELAY
STATUS
FEEDBACK
AND LINE
VOLTAGE
INPUTS
CONTROL
POWER
1K1 2K1 5K1
10
IGNITION
4K1
8
PILOT
2K2
MAIN VALVE
9
4
BLOWER
3 ALARM
L2