Settings And Adjustments; Safety And Security - Honeywell RM7895A1014 Installation Instructions Manual

Run/Test Switch (RM/EC7895C,D;
RM7896C,D only)
The Run/Test Switch is located on the top side of the relay
module, see Fig. 5. The Run/Test Switch allows the burner
sequence to be altered as follows:
1. In the measured PREPURGE sequence, the
Run/Test Switch, placed in the TEST position,
causes the PREPURGE timing to stop.
2. In the Pilot Flame Establishing Period, the Run/Test
Switch, placed in the TEST position, stops the timer
during the first eight seconds of a ten-second PFEP
selection or during the first three seconds of a four-
second PFEP selection. It also allows for pilot turn-
down test and other burner adjustments. This acti-
vates a fifteen-second flameout timer that permits
pilot flame adjustment without nuisance safety
shutdowns. The Run/Test Switch is ignored during
PFEP for the C and D relay modules if terminals 8
and 9 or 9 and 21 are jumpered.
IMPORTANT
When the relay module is switched to the TEST
mode, it stops and holds at the next Run/Test
Switch point in the operating sequence. Make sure
that the Run/Test Switch is in the RUN position
before leaving the installation.
RUN/TEST SWITCH
SEQUENCE
STATUS
LEDs
RESET
PUSHBUTTON
FLAME
SIMULATOR INPUT
Fig. 5. Sequence Status LEDs.

SETTINGS AND ADJUSTMENTS

Selectable Site-Configurable
Jumpers
The relay module has three site-configurable jumper
options, see Fig. 6 and Table 6. If necessary, clip the site-
configurable jumpers with side cutters and remove the
resistors from the relay module.
SERVICE NOTE: Clipping and removing a site-
configurable jumper enhances the level of safety.
RM7895A,B,C,D/EC7895A,C; RM7896A,C,D 7800 SERIES RELAY MODULES
CAPTIVE
MOUNTING
SCREW
PLUG-IN
PURGE
CARD
DUST
COVER
RELAY
MODULE
FLAME
AMPLIFIER
FLAME CURRENT
TEST JACKS
M7552A
13
SELECTABLE CONFIGURATION JUMPERS
Fig. 6. Selectable site-configurable jumpers.
Table 7. Site-configurable jumper options.
Jumper
Number Description
a, b Pilot Flame Establishing
JR1
Period (PFEP)
c Flame Failure Action
JR2
JR3 Airflow Switch (ILK) Failure
a
The RM7895C1020 and RM7896C1036 have fixed PFEP
of ten seconds and do not have jumper JR1 (3 seconds
software revision 4151 or greater).
b
The RM7895C1053 has fixed PFEP of four seconds and
does not have jumper JR1.
c
The RM7895C1053 locks out on Flame Failure Action
and does not have jumper JR2.
IMPORTANT
Clipping and removing a jumper after 200 hours of
operation causes a nonresettable Fault 110. The
relay module must then be replaced.

SAFETY AND SECURITY

Physical device protection
Device shall be accessible to authorized personnel only –
Installation on publicly accessible places is not
recommended as this could lead to unwanted and
potentially unsafe changes to device (wiring,
configuration, etc).
It is recommended to lock the device in an enclosed
cabinet with access allowed only to approved and trained
personnel. Also, it is strongly advised to keep all the wiring
of device physically secure.
Physical protection of the device is applied via Run/Test
switch label/seal. It is intended to prevent and detect
unauthorized access.
RUN/TEST SWITCH
(EC7895C; RM7895C,D; RM7896C,D)
M7553A
Intact Clipped
10 4
seconds seconds
Recycle Lockout
Recycle Lockout
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