■Priming the Pump
WARNING Hot Gas Puff-Back & Heavy Smoke Hazard
Failure to bleed the pump properly could result in unstable combustion, hot gas
yDo not allow oil to spray into a hot combustion chamber while bleeding air from the pump.
yInstall a gauge in the nozzle discharge port tubing or fully open the pump bleed valve to prevent oil spray from accumulating in the combustion chamber during the air bleed procedure.
yInsure that all bubbles and froth are purged from the oil supply system before tightening the pump bleed valve.
yInsure that the equipment is free of oil and oil vapor before starting or resetting the burner.
1.Prepare the burner for priming by attaching a clear plastic hose over the bleed port fitting and fully opening the pump bleed port. Use a suitable container to collect purged oil.
2.Initiate a call for heat.
3.Bleed the pump until all froth and bubbles are purged. If desired, terminate the call for heat to return to Standby.
4.If prime is not established during the valve on delay and the trial for ignition times, repeat Step 3 until the pump is fully primed and the oil is free of bubbles.
5.Terminate the call for heat, and the control will resume normal operation.
■Resetting From Lockout
WARNING Fire & Smoke
Hazard
Before starting or resetting the control from lockout state, troubleshoot the heating system for the root cause(s) of the lockout.
yMake necessary repairs or adjustment to ensure a safe start condition.
yInsure that the equipment is free of oil and oil vapors before starting or resetting the burner.
1.To reset, interrupt power for at least 2 seconds.
2.Always verify the control functions according to all specifications before leaving the installation site.
3.Replace the control if it does not operate as specified.
Maintenance
Oil heating systems require annual service performed by a qualified, professional service agency. The 7559 primary control should be inspected during this service routine according to the following checklist:
| The 7559 control has no | |
serviceable internal parts. | ||
|
□Inspect the exterior of the control. Replace the control if there is any sign of impact damage.
□Use a multimeter to test the input voltage at the control. It should read 21.6 to 30 Vdc.
□Inspect all external wiring for secure connections and verify insulation integrity.
□Verify the control lockout and operation sequence, (Reference Startup/ Checkout section).
□Observe a full operating cycle to prove the sequence and timings are correct.
□Replace any control that does not meet listed specifications. Always replace with the parts specified by the equipment manufacturer.
□Replace a blown fuse with an equivalent
GeniSys Control 24V Control Installation and Operation Manual | 7 |
