RM7895A RELAY MODULE
32-00122-01
14
Fig. 12. Sequence status LEDs.
SELECTABLE SITE-CONFIGURABLE
JUMPERS
The RM7895 has three site-configurable jumper options,
see Fig. 14 and Table 6. The site-configurable jumpers
should be clipped with side cutters and the resistors
removed from the Relay Module.
SERVICE NOTE: Clipping and removing a site-
configurable
jumper enhances the level of safety.
IMPORTANT:
Clipping and removing a site-configurable jumper
after 200 hours of operation results in a hard lock-
out (code 110).
Fig. 13. Selectable site-configurable jumpers.
Table 6. Selectable site-configurable jumper status.
Static Checkout
WARNING
Electric Shock Hazard.
Can cause severe injury, death or property
damage.
1. Use extreme care while testing the system. Line
voltage is present on most terminal connections
when power is on.
2. Open the master switch before installing or
removing a jumper on the subbase.
1.
Before continuing to the next test, be sure to remove
the test jumper(s) used in the previous tests.
2.
Replace all limits and interlocks not operating prop-
erly. Do not bypass limits and interlocks.
3.
Close all manual fuel shutoff valve(s) before starting
these tests.
After checking all wiring, perform this checkout before
installing the RM7895 on the subbase. These tests verify
that the Q7800 Wiring Subbase is wired correctly, and that
the external controllers, limits, interlocks, actuators,
valves, transformers, motors and other devices are
operating properly.
IMPORTANT
Do not perform a dielectric test with the RM7895
installed. Internal surge protectors will break down
and conduct a current. This could cause the
RM7895 to fail the dielectric test or possibly
destroy the internal lightning and high current
transient protection components.
Equipment Recommended
1.
Voltmeter (1 megohm/volt minimum sensitivity) set
on the 0-300 Vac scale.
2.
Two jumper wires; no. 14 wire, insulated, 12 inches
(305 mm) long, with insulated alligator clips at both
ends.
General Instructions
1.
Perform all applicable tests listed in Static Checkout,
Table 5, in the order listed.
2.
MAKE SURE THAT ALL MANUAL FUEL SHUT-OFF
VALVE(S) ARE CLOSED.
3.
Raise the set point of the operating controller to
simulate a call for heat.
4.
For each test, open the master switch and install the
jumper wire(s) between the subbase wiring termi-
nals listed in the Test Jumpers column of Table 7.
5.
Close the master switch before observing operation.
6.
Read the voltage between the subbase wiring termi-
nals listed in the Voltmeter column of Table 7.
CAPTIVE
MOUNTING
SCREW
PLUG-IN
PURGE
CARD
DUST
COVER
RELAY
MODULE
FLAME
AMPLIFIER
FLAME
CURRENT
TEST JACKS
FLAME
SIMULATOR
INPUT
RESET
PUSH
BUTTON
SEQUENCE
STATUS
LEDs
M10590
SELECTABLE CONFIGURATION JUMPERS
M10591
Configuration
Jumper
Intact
Clipped and
Removed
JR1
10 sec. limit.
4 sec.
JR2
Recycle
Lockout
JR3
Recycle
Lockout
