Honeywell 7800 Series Installation Instructions Manual page 7

Test Test
No. Jumpers Voltmeter
WARNING
Explosion Hazard and Electrical Shock Hazard.
Can cause serious injury, death or equipment damage.
Close all manual fuel shutoff valves before starting these tests.
IMPORTANT
Low fuel pressure limits, if used, could be open. Bypass them with jumpers for the remaining Static Test (if
required).
1 None 5-L2
2 None 6-L2
3 4-5 7-L2
4 5-10 —
5 5-8 —
6 5-9 —
7 5-21 —
8 5-3 —
Final IMPORTANT
After completing these tests, open the master switch and remove all test jumpers from the subbase terminals.
Also, remove bypass jumpers from the low fuel pressure limits (if used).
Table 2. Static checkout.
Normal Operation
Line voltage at terminal 5.
Line voltage at terminal 6.
1. Burner motor (fan or
blower) starts.
2. Line voltage at terminal 7
within 10 seconds.
Ignition spark (if ignition
transformer is connected to
terminal 10).
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.
Automatic fuel valve9s) opens. If
using direct spark ignition, check
the first stage fuel valve(s)
instead of the pilot valve.
Automatic delayed main fuel
valve(s) opens.
Alarm (if used) turns on.
7800 SERIES RM7896D RELAY MODULE
If Operation is Abnormal,
Check the Items Listed Below
1. Master switch.
2. Power connected to the master switch.
3. Overload protection (fuse, circuit breaker) has not
opened the power line.
1. Limits.
2. Burner controller.
1. Burner motor circuit.
a. Manual switch of burner motor.
b. Burner motor power supply, overload protection
and starter.
c. Burner motor.
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 or feel head of valve for activation.
a. Actuator, if used.
b. Pilot valve.
Same as test no. 5. 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 delayed
main fuel valve(s) and actuator(s).
2. Valve(s) and actuator(s).
1. Alarm.
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