Honeywell 7800 Series Installation Instructions Manual page 7

1
L1
L2
MASTER
SWITCH
INITIATE
(INITIAL
POWERUP
STANDBY
ONLY)
POWER POWER
LED
DISPLAY
BURNER
OPERATING
LIMITS AND BURNER CONTROLLER CLOSED
CONTROLS
AND
INTERLOCKS
PREIGNITION INTERLOCK CLOSED
FLAME
SAFE START CHECK
SIGNAL
120V, 50/60 HZ POWER SUPPLY. PROVIDE DISCONNECT
1
MEANS AND OVERLOAD PROTECTION (15 AMP TYPE SC
FUSE OR EQUIVALENT FAST BLOW FUSE) AS REQUIRED.
2
DO NOT CONNECT ANY WIRES TO UNUSED TERMINALS.
SEE FLAME DETECTOR SPECIFICATIONS FOR CORRECT
3
DETECTOR WIRING.
4
PROGRAMMED ON SETUP USING S7800A1142 DISPLAY.
Fig. 5. Wiring subbase and sequence chart for RM7898 without Valve Proving.
RM7898A 7800 SERIES VALVE PROVING PRIMARY RELAY MODULES
Q7800 SUBBASE
LINE VOLTAGE
ALARM
BURNER MOTOR
(BLOWER)
BURNER
LIMITS
CONTROL
AIRFLOW INTERLOCK
INTERRUPTED PILOT/
IGNITION 6
MAIN FUEL VALVE #1
IGNITION
7
FLAME DETECTOR
3
PFEP
PFEP
5 10 SEC.
10 SEC.
00 (4 SEC. IF
TIMED 00 10
(4 SEC. IF
JR1 CLIPPED
PREPURGE MFEP
JR1 CLIPPED
POWER POWER POWER
PILOT
PILOT PILOT
FLAME FLAME
FLAME
MAIN MAIN
MAIN
ALARM ALARM ALARM
BURNER/BLOWER MOTOR
10 IGN.
7
INTERRUPTED PILOT
MAIN VALVE
RUNNING INTERLOCKS CLOSED
5 TO 20
FLAME PROVING
PURGE TIME DEPENDS ON WHICH ST7800 IS INSTALLED.
5
PROVIDE LINE VOLTAGE INPUT TO TERMINAL 19 FOR
6
INTERMITTENT PILOT OPERATION.
RM7898A1018 PROVIDES FOR EARLY SPARK TERMINATION
7
(IGNITION SHUTS OFF WHEN FLAME IS SENSED), PFEP
TIMING WILL COMPLETE BEFORE GOING TO RUN.
7
2
G 12
L2
13
14
3
4 15
L1
5 16
6 17
7 18
8
19
6
PRE-IGNITION
9 20
INTERLOCK (POC)
10 21
11 22
20 4
00
RUN POSTPURGE STANDBY
POWER POWER
PILOT
FLAME
MAIN
ALARM
4
8
6
9
9
L1 TO 6
6 TO 7
PII
POWER
SSC
M23872A
32-00209—03