CleaverBrooks profire q, Установка, эксплуатация и обслуживание

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Troubleshooting
6-4 750-370
ProFire Q Series Manual
Burner Stays in Low-Fire 1. Pressure or temperature above modulating control setting.
2. Manual-automatic switch in wrong position.
3. Inoperative modulating motor.
4. Defective modulating control.
Shutdown Occurs During
Firing 1. Loss or stoppage of fuel supply.
2. Defective fuel valve, loose electrical connection.
3. Flame detector weak or defective.
4. Scanner lens dirty or sight tube obstructed.
5. If the programmer lockout switch has not tripped, check the limit circuit for an opened
safety control.
6. If the programmer lockout switch has tripped:
a. Check fuel lines and valves.
b. Check flame detector.
c. Check for open circuit in running interlock circuit.
d. The flame failure light is energized by ignition failure, main flame failure, inadequate
flame signal, or open control in the running interlock circuit.
7. Improper air/fuel ratio (lean fire).
a. Fluctuating fuel supply.
Temporary obstruction in the fuel line.
Temporary drop in gas pressure.
8. Interlock device inoperative or defective.
Actuator Does Not Oper-
ate
1. Manual/automatic switch in wrong position.
2. Motor does not drive to open or close during pre-purge or close on burner shutdown.
a. Motor defective.
b. Loose electrical connection.
c. Damper motor transformer defective.
3. Motor does not operate on demand.
a. Manual/automatic switch in wrong position.
b. Modulating control improperly set or inoperative.
c. Motor defective.
d. Loose electrical connection.
e. Damper motor transformer defective.
Problem Possible Causes