Guspro BB-8416884 - SETTINGS AND ADJUSTMENTS; Selectable Site-Configurable Jumpers

66-1090—3 G.R. Rev. 1-01 www.hone
y
well.com
RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES
Home and Building Control Home and Building Control
Honeywell Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Scarborough, Ontario
M1V 4Z9
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.
Run
1.
The EC7895C, RM7895C,D, RM7896C,D has a
dela
y
ed main valve that is ener
g
ized once the RUN
period is entered.
2.
The rela
y
module is now in RUN and remains in RUN
until the controller input, terminal 6, opens, indicatin
g
that the demand is satisfied or a limit has opened.
Post Purge (RM7896A,B,C,D Only)
After demand is satisfied or a limit opens, de-ener
g
izin
g
terminal 6, the I
g
nition/Pilot valve, main valve and dela
y
ed
main valve, terminals 8, 9 and 21, are de-ener
g
ized. The
blower motor, terminal 4, remains powered for 15 seconds.
Run/Test Switch (RM/EC7895C,D; RM7896C,D only)
The Run/Test Switch is located on the top side of the rela
y
module, see Fi
g
. 5. The Run/Test Switch allows the burner
se
q
uence to be altered as follows:
1.
In the measured PREPURGE se
q
uence, the Run/Test
Switch, placed in the TEST position, causes the
PREPURGE timin
g
to stop.
2.
In the Pilot Flame Establishin
g
Period, the Run/Test
Switch, placed in the TEST position, stops the timer
durin
g
the first ei
g
ht seconds of a ten-second PFEP
selection or durin
g
the first three seconds of a
four-second PFEP selection. It also allows for pilot
turn-down test and other burner ad
j
ustments. This
activates a fifteen-second flameout timer that permits
pilot flame ad
j
ustment without nuisance safet
y
shutdowns. The Run/Test Switch is i
g
nored durin
g
PFEP for the C and D rela
y
modules if terminals
8 and 9 or 9 and 21 are
j
umpered.
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.
Fig. 5. Sequence Status LEDs.
SETTINGS AND ADJUSTMENTS
Selectable Site-Configurable Jumpers
The rela
y
module has three site-confi
g
urable
j
umper options,
see Fi
g
. 6 and Table 6. If necessar
y
, clip the site-confi
g
urable
j
umpers with side cutters and remove the resistors from the
rela
y
module.
SERVICE NOTE:
Clippin
g
and removin
g
a site-confi
g
urable
j
umper enhances the level of safet
y
.
Fig. 6. Selectable site-configurable jumpers.
Table 7. Site-configurable jumper options.
a
The RM7895C1020 and RM7896C1036 have fixed PFEP of
ten seconds and do not have
j
umper JR1.
IMPORTANT
Clipping and removing a jumper after 200 hours of
operation causes a nonresettable Fault 110. The
relay module must then be replaced.
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
Jumper
Number Description Intact Clipped
JR1
a
Pilot Flame Establishin
g
Period
(
PFEP
)
10
seconds
4 seconds
JR2 Flame Failure Action
Rec
y
cle
Lockout
JR3 Airflow Switch
(
ILK
)
Failure
Rec
y
cle Lockout
RUN/TEST SWITCH
(EC7895C; RM7895C,D; RM7896C,D)
SELECTABLE CONFIGURATION JUMPERS
M7553A