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SERVICING
CAUTION: Only trained and qualified Safety Control Technicians should attempt to
service Flame Safeguard control installations.
Special care must be exercised in troubleshooting a burner control
system. Electrically live parts are exposed when covers of devices
are removed. Additionally, safety interlocks and limit switches (air
flow, fuel pressure, LWCO, etc.) should not be jumpered out during
troubleshooting, nor should any attempt be made to eliminate or
alter any portion of the programming sequence beyond use of the
Run-check
switch during the pilot trial-for-ignition period of pilot
ignited burners.
Servicing Fireye D-Series units is facilitated by the use of plug-in
programmer and amplifier modules.
Trouble with installations equipped with Fireye D30 controls can
be readily isolated by following the procedure in the sequence
listed below. An AC-DC test meter is required. Test points are
located on the chassis board to assist with measuring line and load
voltages. Test jacks are located on the amplifier for measuring
flame signal strength. The LED indicators are a useful service tool.
Voltage at terminals S1, S2 should read approximately 560 volts AC for 72DUV1, 72DUVS4, and
72DUVSIT amplifiers, 7 volts DC for 72DIRI amplifier, and 280 volts AC for 72DRT1 amplifier,
with power on and burner off.
Before troubleshooting check the following:
1.
Installation and wiring have been made in accordance with the installation instructions.
2.
Contact tabs on bottom of chassis are not bent out of position.
3.
Chassis is properly secured to the wiring base.
4.
The programmer is securely plugged in and the
run-check
switch is in the
run
position.
5.
The correct amplifier for the method of flame detection desired is securely plugged in.
6.
The flame detector is clean.
7.
The lockout switch is reset.
TROUBLESHOOTING
In the following tabulation, trouble symptoms appear in bold type and possible causes for that symp-
tom are listed below the bold type.
Note: For direct spark ignited oil burners, substitute the words main oil valve for pilot valve.
Zero volts at terminals L1-L2. All indicators off.
— Electrical disconnect switch off.
— Blown fuse or tripped circuit breaker.
— Bent tab on bottom of control.
— Broken wire, loose connection or wiring error.
Low volts at terminals L1-L2. All indicators off.
— Minimum operating voltage 102 volts.
Zero volts at terminals 13-L2. All indicators off.
— Burner on-off switch off.
— Open limit switch or operating control.
— Bent tab on bottom of control.
— Broken wire, loose connection or wiring error.
Summary of Contents for D30 Series
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