Honeywell 7800 SERIES Instruction Manual page 12

EC7830A, RM7830A, EC7850A, RM7850A 7800 SERIES RELAY MODULES
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
No. Jumpers 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 —
66-1092—06
Table 5. EC/RM7830A Static Checkout. (Continued)
Normal Operation
1. Ignition spark (if ignition transformer
is connected to terminal 8).
2. Automatic pilot valve opens (if con-
nected to terminal 8).
NOTE: Refer to wiring diagram of system
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.
If Operation is Abnormal, Check the Items
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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