Specifications

– 17 –
SEQUENCE
STATUS
LEDs
RESET
PUSHBUTTON
FLAME
SIMULATOR INPUT
FLAME CURRENT
TEST JACKS
RUN/TEST SWITCH
(RM7895C,D;
EC7895C;
RM7896C,D)
CAPTIVE
MOUNTING
SCREW
PLUG-IN
PURGE
CARD
DUST
COVER
RELAY
MODULE
FLAME
AMPLIFIER
M7552A
RUN/TEST SWITCH
(EC7895C; RM7895C,D; RM7896C,D)
SELECTABLE CONFIGURATION JUMPERS
M7553A
Figure 4 - RM7897A,C Relay Module Exploded View
SECTION VII - TROUBLE SHOOTING continued
SETTINGS AND ADJUSTMENTS
Selectable Site-Confi gurable Jumpers
The relay module has three site-confi gurable jumper
options, see Fig. 6 and Table 7. If necessary, clip the
site-confi gurable jumpers with side cutters and remove
the resistors from the relay module.
SERVICE NOTE: Clipping and removing a site-con-
fi gurable jumper enhances the level of safety.
Figure 5 - Sequence Status LEDs
Figure 6 - Selectable Site-Confi gurable Jumpers
Table 7 - Site-Confi gurable Jumper Options
Jumper
Number Description Intact Clipped
JR1* Pilot Flame
Establishing Period (PFEP)
10 Seconds 4 Seconds
JR2 Flame Failure Action Recycle Lockout
JR3 Airfl ow Switch (ILK) Recycle Lockout
Failure
IMPORTANT: Clipping and removing a jumper after
200 hours of operation causes a nonresettable Fault
110. The relay module must then be replaced.
LL
EW
YENOH
RE
WO
P
PILOT
FLAM
E
M
AIN
ALARM
RESET
PURGE
TIMER
WIRING
SUBBASE
CAPTIVE
MOUNTING
SCREW
RUN/TEST (C,D ONLY)
SWITCH
CONFIGURATION
JUMPERS
RELAY
MODULE
SEQUENCE
STATUS
LED PANEL
RESET
BUTTON
FLAME
AMPLIFIER
M22827
:
TI
DE
KC
A
B
-
R
E
T
N
E -
REN
R
UB
T
NO
C
L
O
R
_
+
KEYBOARD
DISPLAY
MODULE