Honeywell RM7824A Product Data page 12

7800 SERIES RM7824A RELAY MODULE
RESET
PUSH-
SEQUENCE
BUTTON
STATUS LEDS
Fig. 14. Sequence status LEDs.
Ignition Trials
Pilot Flame Establishing Period (PFEP):
1. The pilot valve and ignition transformer, terminals 8 and
10, are energized. The RM7824A has an intermittent
pilot valve, terminal 8.
2. Flame must be proven by the end of the 4 or 10 second
PFEP to allow the sequence to continue. If flame is not
proven by the end of PFEP, a safety shutdown occurs.
3. With flame proven, the ignition, terminal 10, is
de-energized and the main valve, terminal 9, is
energized.
Run
The RM7824A is now in RUN and will remain in RUN until the
controller input, terminal 6, opens, indicating that the demand
is satisfied or a limit has opened.
Selectable Site-Configurable Jumper
The RM7824A has one site-configurable jumper option, see
Fig. 16 and Table 4. The site-configurable jumper should be
clipped with side cutters and the resistor removed from the
Relay Module.0
65-0155—2
CAPTIVE
MOUNTING
SCREW
DUST
COVER
RELAY
MODULE
FLAME
AMPLIFIER
FLAME CURRENT
FLAME
TEST JACK
SIMULATOR INPUT
M7593
INITIATE STANDBY
POWER POWER
PILOT
PILOT
FLAME FLAME
MAIN MAIN
ALARM
ALARM
Fig. 15. LED sequence status display information (see Fig. 14).
SAFE-
START
PILOT
CHECK
IGNITION
RUN
POWER
POWER
POWER
PILOT
PILOT PILOT
FLAME FLAME FLAME
MAIN
MAIN
MAIN
ALARM ALARM ALARM
Fig. 16. Selectable site-configurable jumpers.
Table 4. Site-Configurable Jumper Options.
Jumper
Number
JR1 Pilot Flame
Establishing Period
12
RESET/
ALARM
TEST
POWER
PILOT
FLAME
MAIN
ALARM
M3362A
SELECTABLE CONFIGURATION JUMPER
Description Intact
10 seconds 4 seconds
M7592
Clipped