Honeywell RM7800G ユーザーズマニュアル

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RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES
66-1085—04
10
Fig. 5.  RM7800/RM7840 Relay Module exploded view.
SAFETY SHUTDOWN
Safety Shutdown (Lockout) occurs if 
any of the following occur during the 
indicated period:
1. INITIATE Period:
a. Purge card is not installed or is removed.
b. Purge card is bad.
c. Configuration jumpers are changed (after 200 hours 
of operation).
d. Ac line power errors occurred, see Operation 
section.
e. Four minute INITIATE period has been exceeded.
2. STANDBY Period:
a. Flame signal is present after 240 seconds.
b. Preignition Interlock is open an accumulative time
 of 30 seconds.
c. Interlock check feature is enabled and the 
Interlock String (including airflow switch) is closed 
for 120 seconds with controller closed.
d. Ignition/pilot valve/intermittent pilot valve terminal is 
energized.
e. Main valve terminal is energized.
f. Internal system fault occurred.
g. Purge card is not installed or is removed.
h. Purge card is bad.
3. PREPURGE Period:
a. Preignition Interlock opens anytime during 
PREPURGE period (RM7840E,L).
b. Flame signal is detected after first ten seconds 
during PREPURGE (RM7840E,L).
c. High Fire Switch fails to close within four minutes 
and fifteen seconds after the firing rate motor is 
commanded to drive to the high fire position at the 
start of PREPURGE (RM7840E,L).
d. Low Fire Switch fails to close within four minutes 
and fifteen seconds after the firing rate motor is 
commanded to drive to the low fire position at the 
end of PREPURGE.
e. Running Interlock does not close within 30 seconds 
(RM7840G,M).
f. Lockout Interlock does not close within 10 seconds 
(RM7840E,L).
HONEYWELL
POWER
PILOT
FLAME
MAIN
ALARM
RESET
KEYBOARD 
DISPLAY 
MODULE
(STANDARD ON
RM7800E,G,L,M)
PURGE 
TIMER
WIRING 
SUBBASE
CAPTIVE 
MOUNTING 
SCREW
RUN/TEST 
SWITCH
CONFIGURATION 
JUMPERS
RELAY 
MODULE
SEQUENCE 
STATUS 
LED PANEL
RESET 
BUTTON
FLAME
AMPLIFIER
SCROLL
MODE
- SAVE -
BURNER CONTROL
M16353