12
EC7830, RM7830A,EC7850A,RM7850A 7800 SERIES RELAY MODULES
66-1092—2
Table 4. EC/RM7830A Static Checkout (continued)
Test No.
Test Jumpers
Voltmeter
Normal Operation
If Operation is Abnormal ,
Check the Items Listed Below
9
5-21
Same as test no. 8 for connections
to terminal 8. If using direct spark
ignition, check the first stage fuel
valve(s) instead of the pilot valve.
Same as test no. 8. If using direct
spark ignition, check the first stage
fuel valve(s) instead of the pilot valve.
10
5-9
Automatic main fuel valve(s)
open(s).
If using direct spark ignition on a
model with intermittent pilot on
terminal 21, check the optional
second stage fuel valve, if used.
1.
Listen for and observe operation
of the main fuel valve(s) and
actuator(s).
2.
Valve(s) and actuator(s).
Final
CAUTION
Electrical Hazard.
Can cause equipment damage.
After completing these tests, open the master switch and remove all test jumpers from the subbase
terminals. Then remove bypass jumpers from the low fuel pressure limits (if used).
Table 5. EC/RM 7850A Static Checkout.
Test
No.
Test
Jumpers
Voltmeter
Normal Operation
If Operation is Abnormal,
Check These Items
1
None
4-2
Line voltage at terminal 4.
1. Master switch.
2. Power connected to the master switch.
3. Overload protection (fuse, circuit breaker, etc.)
did not open the power line.
2
None
17-2
Line voltage at terminal 17.
Preignition interlocks.
3
4-16
Alarm (if used) turns on.
Alarm
NOTE:
Disconnect horn at this time (if used).
4
4-16
2-20
Line voltage at terminal 20.
Limits in Lockout Circuit
5
4-16
2-6
Line voltage at terminal 6.
1.
Recycle limits.
2.
Burner control.
6
4-16
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 protection and
starter.
c. Fan.
2. Running limits of Airflow Switch (LD2 input).
NOTE: Remove jumpers and re-connect alarm (if used).
7
4-10
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.
8
4-8
1. Ignition spark (if ignition transformer is
connected to terminal 8).
2. Automatic pilot valve opens (if connected
to terminal 8).
NOTE:
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. Listen for click or feel head of valve for
activation.
a. Actuator if used.
b. Pilot valve.
9
4-21
Same as test no. 4 for connections to terminal
8. If using direct spark ignition, check the first
stage fuel valve(s) instead of the pilot valve.
Same as test no. 4. If using direct spark ignition,
check the first stage fuel valve(s) instead of the
pilot valve.
10
4-9
Automatic main fuel valve(s) opens.
If using direct spark ignition on a model
with intermittent pilot on terminal 21, check the
optional second stage fuel valve, if used.
1. Listen for and observe operation of the main
fuel valve(s) and actuator(s).
2. Valve(s) and actuator(s).
11
12-13
18-L2
Voltmeter reads line voltage, then zero volts on
terminal 18 after motor starts driving open.
1. Low Fire Start Switch.
2. Firing rate motor and transformer.
12
12-13
19-L2
Firing rate motor drives open; line voltage at
terminal 19 after motor is in High Fire position.
1. High Fire Purge Switch.
2. Firing rate motor and transformer.
(continued)