RM7890, RM7895 100 Vac
Table 11. RM7890 Static Checkout.
Test Number
Test
Jumpers
Voltmeter
Normal Operation
If Operation is Abnormal, Check the Items
Listed Below
WARNING
Explosion Hazard.
Can cause severe injury, death or property damage.
Make sure that all manual fuel shutoff valves are closed.
IMPORTANT
Low fuel pressure limits, if used, could be open. Bypass them with jumpers for the remaining static tests, if required.
1
None
3 to L2
Line voltage at terminal 3.
1 .
Master Switch.
2 .
Power connected to the Master Switch.
3 .
Overload protection (fuse, circuit breaker)
has not opened the power line.
2
None
6 to L2
Line voltage at terminal 6.
1 .
Limits.
2 .
Burner controller.
3
3 to 10
a
—
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.
4
3 to 8
a
—
Ignition spark (if ignition
transformer is connected to
terminal 8).
Automatic pilot valve opens (if
connected to terminal 8).
Refer to wiring diagram of system
being tested.
1 .
Watch for spark or listen for buzz.
a .
Ignition electrodes are clean.
b .
Ignition transformer is okay.
2 .
List for click or feel head of valve for acti-
vation.
a .
Actuator, if used.
b .
Pilot valve.
5
3 to 9
a
—
Automatic fuel valve(s) opens. If
using direct spark ignition, check
the first stage fuel valve(s)
instead of the pilot valve.
Same as test number 4. If using direct spark
ignition, check the first stage fuel valve(s)
instead of the pilot valve.
6
3 to 4
—
Alarm, if used, turns on.
Alarm.
Final
CAUTION
Equipment Damage Hazard.
Incorrect wiring can damage equipment.
After completing these tests, open the Master Switch and remove
all
test jumpers from the subbase
terminals. Also remove the bypass jumpers from the low fuel pressure limits (if used).
a
Use an ammeter in place of the jumper wire to verify current draw of the terminal loads. Do not exceed ratings shown in Tables 3 and 4.
32-00216-01
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