Checkout - Honeywell 7800 Series Manual

Test Test
No. Jumpers Voltmeter
1 —
2 8 - 9
3 8 - 10
4 13 - 14
5 13 - 15
FINAL ALL
!
WARNING
Do not allow fuel to accumulate in the combus-
tion chamber. If fuel is allowed to enter the cham-
ber for longer than a few seconds without igniting,
an explosive mixture could result. It is recom-
mended that you limit the trial for pilot to ten
seconds, and limit the attempt to light the main
burner to two seconds from the time the fuel has
reached the burner nozzle. In any case, do not
exceed the nominal lightoff time specified by the
equipment manufacturer. Close the manual fuel
shutoff valve(s) if the flame is not burning at the
end of the specified time.
!
CAUTION
1. Use extreme care while testing the system. Line
voltage is present on most terminal connections
when power is on.
2. Open the master switch before removing or
installing the RM7823A.
3. Make sure all manual fuel shutoff valves are
closed before starting the initial lightoff check
and the Pilot Turndown tests.
4. Do not put the system in service until you have
satisfactorily completed all applicable tests in
this section and any others required by the
equipment manufacturer.
TABLE 4—STATIC CHECKOUT.
Normal Operation
L2-3 LINE VOLTAGE
— Load operation
without flame
sighting.
Load operation
when flame detected.
— Load operation
without flame
sighting.
— Load operation
when flame detected.
CAUTION
!
After completing these tests, open the; master switch and remove all test jumpers
from the subbase terminals. Also remove bypass jumpers from limits if used.
If Abnormal Check
1. Master switch.
2. Power connected to the master Switch
1. Load connections to terminals 8 and 9.
1. Load connections to terminals 8 and 10.
1. Load connections to terminals 13 and 14.
1. Load connections to terminals 13 and 15.
!
CAUTION
If an RM7823A is replaced with a higher func-
tioning 7800 SERIES Relay Module, the burner
will not sequence unless wiring changes are made.
IMPORTANT:
1. If the system fails to perform properly, refer to 7800
SERIES System Annunciation Diagnostics and
Troubleshooting, form 65-0118.
2. Repeat ALL required Checkout tests after all adjust-
ments are made. ALL tests must be satisfied with the
flame detector(s) in its FINAL position.
EQUIPMENT REQUIRED
Volt-ohmmeter (20 kohm/volt minimum sensitivity):
• 0-300 Vac capability.
• 0-6000 ohm capability.
• 0-10 Vdc capability.
CHECKOUT SUMMARY
Perform the following checks as directed by the equip-
ment manufacturer:
• Initial lightoff check for proved pilot—all installations
using a pilot.
• Initial lightoff check for direct spark ignition of oil—
all burners using DSI.
• Pilot turndown test—all installations using a pilot.
Perform the following tests that apply:
• Preliminary inspection—all installations.
15
RM7823A
OPERATION • CHECKOUT

Checkout

65-0106—2