EC7830A, RM7830A, EC7850A, RM7850A 7800 SERIES RELAY MODULES
32-00198—01 12
Fire or Explosion Hazard.
Can cause severe injury, death, or property
damage.
Close all manual fuel shutoff valves before starting
this test to prevent an explosion.
Electrical Shock Hazard.
Can cause severe injury, death, or property
damage.
Use extreme care when testing the system. Line
voltage is present on most terminal connections
when power is on. Ensure proper selection of
configuration jumpers before starting the burner
operation.
Equipment Damage Hazard.
Improper testing can cause equipment damage.
Do not perform a dielectric test with the relay
module installed. Internal surge protectors break
down and conduct a current. This can cause the
relay module to fail the dielectric test or destroy the
internal lightning and high current protection.
1. Open the master switch before installing or remov-
ing a jumper on the subbase.
2. Before continuing to the next test, be sure to remove
test jumper(s) used in the previous test.
3. Replace all limits and interlocks that are not operat-
ing properly. Do not bypass limits and interlocks.
Equipment Recommended
Voltmeter (1M ohm/volt minimum sensitivity) set on the 0
to 300 Vac scale and two jumper wires, No. 14 AWG (2.5
mm
2
) wire, insulated, 12 in. (304.8 mm) long with
insulated alligator clips at both ends.
General Instructions
1. Perform all applicable tests listed in the Static
Checkout, Table 4 or 5, in the order listed.
2. Make sure all manual fuel shutoff valves are closed.
3. 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.
4. Close the master switch before observing operation.
5. Read the voltage between the subbase wiring termi-
nals listed in the Voltmeter column.
6. If there is no voltage or the operation is abnormal,
check the circuits and external devices as described
in the last column.
7. Check all wiring for correct connections, tight termi-
nal screws, correct wire, and proper wiring tech-
niques.
8. Replace all damaged or incorrectly sized wires.
9. Replace faulty controllers, limits, interlocks, actua-
tors, valves, transformers, motors and other devices,
as required.
10. Make sure normal operation is obtained for each
required test before continuing the checkout.
11. After completing each test, be sure to open the mas-
ter switch and remove the test jumper(s).
Table 5. EC/RM7830A Static Checkout.
Test
No.
Test
Jumpers Voltmeter Normal Operation
If Operation is Abnormal, Check the Items
Listed Below
1 None 5-L2 Line voltage at terminal 5. 1. Master switch.
2. Power connected to the master switch.
3. Overload protection (fuse, circuit
breaker, etc.) opened the power line.
2 None 17-L2 Line voltage at terminal 17. Preignition interlocks.
3 5-16 — Alarm (if used) turns on. Alarm.
NOTE: Disconnect horn at this time (if used).
4 5-16 2-20 Line voltage at terminal 20. Limits in Lockout Circuit.
5 5-16 2-6 Line voltage at terminal 6. 1. Recycle limits.
2. Burner control.
65-16
5-4
2-7 1. Fan (Burner Motor or Blower)
starts.
2. Line voltage at terminal 7.
1. Fan circuit.
a. Manual Fan Switch.
b. Fan power supply, overload protec-
tion and starter.
c. Fan.
2. Running Limits or Airflow Switch (LD2
input).
NOTE: Remove jumpers and reconnect alarm (if used).
7 5-10 — Ignition spark (if ignition transformer is
connected to terminal 10).
1. Watch for spark or listen for buzz.
a. Ignition electrodes are clean.
b. Ignition transformer is okay.
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