Honeywell 7800 Series Manual page 11

5
CONFIGURATION
JUMPERS
RUN/TEST
SWITCH
RESET
PUSHBUTTON
SAFETY RELAY
STATUS
CIRCUIT
LEDS
ES2
16
LOS
3K2
20
2
LD2
6K1
3K1
KEYBOARD
DISPLAY MODULE
DDL
RS485
5
1
DDL
2
REMOTE
COMMUNICATIONS
3 RESET
1
PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 TO CONNECT L1 DIRECTLY TO LOS, AT LEAST ONE CONTROLLED SHUTDOWN MUST BE PROVIDED EVERY 24 HOURS.
Fig. 3A. Internal block diagram of the RM7830A.
7800 SERIES RM7830A, RM7850A RELAY MODULE
L1
HOT N
1
120 Vac
PLUG-IN PURGE
TIMER CARD
FLAME SIGNAL
MICROCOMPUTER
2K
3K
4K
RELAY
DRIVE 5K
CIRCUIT
6K
7K
1K
POWER SUPPLY
17
RT
2K1 5K1
6
4K1
1K1
7
7K1
2K2
RELAY CONTACT OPEN
RELAY CONTACT CLOSED
RELAY COIL
FIELD WIRING
INTERNAL WIRING
11
TEST
JACK
F
PLUG-IN
FLAME
G
AMPLIFIER
SHUTTER
22
RELAY
STATUS
FEEDBACK
AND LINE
VOLTAGE
INPUTS
CONTROL
POWER
AL
IGN
10
PV1
8
PV2
21
MV
9
FAN
4
AL
3
F G ... 22 USER TERMINALS
INDICATES FEEDBACK SENSING
OF RELAY CONTACT STATUS
AND LINE VOLTAGE INPUTS
2
M10178
65-0222