Honeywell 7800 Series Installation Instructions Manual page 13

Test Test
No. Jumpers Voltmeter
8 5-8 —
9 5-21 —
10 5-9 —
Final
CAUTION
Equipment Damage Hazard.
Failure to remove jumpers can damage equipment.
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).
Test
Test Jumper
No. s Voltmeter
1 None 4-2
2 None 17-2
3 4-16 —
NOTE: Disconnect horn at this time (if used).
4 4-16 2-20
5 4-16 2-6
6 4-16 2-7
5-4
NOTE: Remove jumpers and re-connect alarm (if used).
7 4-10 —
8 4-8 —
EC7830A, RM7830A, EC7850A, RM7850A 7800 SERIES RELAY MODULES
Table 5. EC/RM7830A Static Checkout. (Continued)
Normal Operation
1. Ignition spark (if ignition trans-
former is connected to terminal 8).
2. Automatic pilot valve opens (if
connected to terminal 8).
NOTE: Refer to wiring diagram of sys-
tem being tested.
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.
Automatic 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.
Table 6. EC/RM7850A Static Checkout.
Normal Operation
Line voltage at terminal 4.
Line voltage at terminal 17.
Alarm (if used) turns on.
Line voltage at terminal 20.
Line voltage at terminal 6.
1. Fan (Burner Motor or Blower)
starts.
2. Line voltage at terminal 7.
Ignition spark (if ignition transformer is
connected to terminal 10).
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.
13
If Operation is Abnormal, Check the Items
Listed Below
1. Watch for spark or listen for buzz.
a. Ignition electrodes are clean.
b. Ignition transformer is okay.
2. Listen for click of fee head of valve for
activation.
a. Actuator, if used.
b. Pilot valve.
Same as test no. 8. If using direct spark
ignition, check the first stage fuel valve(s)
instead of the pilot valve.
1. Listen for and observe operation of the
main fuel valve(s) and actuator(s).
2. Valve(s) and actuator(s).
If Operation is Abnormal, Check These Items
1. Master switch.
2. Power connected to the master switch.
3. Overload protection (fuse, circuit breaker,
etc.) did not open the power line.
Preignition interlocks.
Alarm.
Limits in Lockout Circuit.
1. Recycle limits.
2. Burner control.
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.
1. Watch for spark or listen for buzz.
a. Ignition electrodes are clean.
b. Ignition transformer is okay.
1. Watch for spark or listen for buzz.
a. Ignition electrodes are clean.
b. Ignition transformer is okay.
2. Listen for click of fee head of valve for
activation.
a. Actuator, if used.
b. Pilot valve.
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