CleaverBrooks FLX 1000, Руководство по эксплуатации, обслуживанию и запасным частям

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Profire V Burner Chapter 2
750-177 2-47
GAS SYSTEM
Check the gas train for leaks. Check the gas valves and verify the low and high gas pressure settings.
! DANGER CAUTION
All power must be disconnected before servicing the valves.
SOLENOID VALVES
A faint hum from the solenoid is normal when the coil is energized. Should the valve fail to operate, check
that there is voltage at the valve coil. If there is no voltage at the coil, check for loose wiring connections. If
there is proper voltage at the valve coil and the valve still fails to open, replace the coil. Refer to manufacturer’s
bulletin for correct procedure in coil replacement.
Should it become necessary to replace the complete valve, be sure that the flow is in the direction of the arrow
on the valve body.
Test for gas leaks and check valve action several times to ensure proper operation before attempting to relight
burner.
MOTORIZED MAIN GAS VALVES
Should the valve fail to operate, check for voltage at the valve. Make certain that the main shutoff cock is
closed prior to testing. The actuator is not field repairable nor should it be disassembled. Replace the actuator
if valve fails to operate.
After replacement, cycle the valve with the fuel shut off to determine that it opens and closes. If the valve has
a visual indicator, observe its position for correct operation.
ELECTRIC MOTORS
Motor supply voltage must not vary more than 10 percent from nameplate ratings. At initial startup and atleast
once a year thereafter, check the motor current with a meter while the burner is in high-fire position. Ifthe
reading exceeds the nameplate rating plus service factor, determine the cause and correct it immediately. In
dusty locations, clean the motor regularly to assure adequate cooling. Lubricate in accordancewith the
manufacturer's instructions.
CHECKING FLAME FAILURE
Pilot Flame Failure
1. Shut off the main fuel supply and close the gas pilot shutoff cock.
2. The pilot ignition circuit will be energized at the end of the pre-purge period. There should be an ignition spark, but
no flame. Since there is no flame to be detected, the program relay will signal the condition.
3. The ignition circuit will de-energize and the control will lock out on a safety shutdown and the flame failure light
will be activated.
4. The blower will run through post-purge and stop. Turn the burner switch off and reset the safety switch. Re-open
the gas pilot shutoff cock and re-establish main fuel supply.