Beckett 24 VDC Start Up Burner & Set Combustion, Solenoid Valve Testing, Basic Burner Operation

Section: Start Up Burner & Set Combustion

C. Solenoid Valve Testing

To check solenoid operation, perform the following.

1.Check for oil flow and operating pressure by removing the copper tubing from the nozzle line and installing a pressure gauge in the line. With the motor running and the coil energized, check the gauge. The pressure should read 100 psig unless otherwise stated.

2.To check the solenoid valve cutoff function, deadhead the pressure gauge onto the copper connector tube attached to the nozzle port. Run the burner for a short period of time. Shut the burner off. The solenoid valve should close and the pressure should drop and hold.

3.Replace the solenoid valve if it does not pass the previous steps.

Start Up Burner & Set Combustion

A. Basic Burner Operation

With 7559 Primary Safety Control

The 7559 control provides the benefits of added safety, convenience, and performance. It adds a valve on delay and motor-off delay to the burner’s operation sequence that promote clean burner operation. It has a lock-out function that shuts the burner down if it is not operating properly. The control adds fusing at the burner to protect against component failures. The control also has redundant motor relays that are checked for proper operation every heat cycle.

Variations to the burner circuits may occur due to optional temperature, pressure, and vacuum switches that control burner operation. Note that when external switches are used to control motor operation they must be sized correctly for the rated current or a relay should be installed to isolate the switches from the motor’s full load current.

B. Combustion Set-up

As soon as burner motor starts rotating bleed all the air from the pump. (Required with single-pipe systems.)

To bleed the pump, attach a clear plastic hose over the vent fitting. Loosen the fitting and catch the oil in an empty container. Tighten the fitting when all air has been purged from the supply system. Note: If the burner stops after a flame is established, the unit probably requires additional bleeding. Continue to bleed the system until the pump is primed and a flame is established when the bleed valve is closed.

Explosion and Fire Hazard

Failure to follow these instructions could lead to equipment malfunction and result in heavy smoke emission, soot-up, hot gas puff-back, fire and asphyxiation hazards.

yDo not attempt to start the burner when excess oil has accumulated in the appliance, the appliance is full of vapor, or when the combustion chamber is very hot.

yDo not attempt to re-establish flame with the burner running if the flame becomes extinguished during start-up, venting, or adjustment.

yVapor-Filled Appliance: Allow the unit to cool off and all vapors to dissipate before attempting another start.

yOil-Flooded Appliance: Shut off the electrical power and the oil supply to the burner and then clear all accumulated oil before continuing.

yIf the condition still appears unsafe, contact the Fire Department. Carefully follow their directions.

yKeep a fire extinguisher nearby and ready for use.

C. Set Combustion with Instruments

Professional Service

Required

Incorrect installation, adjustment, and use of this burner could result in severe personal injury, death, or substantial property damage from fire, carbon monoxide poisoning, soot or explosion.

Please read and understand the manual supplied with this equipment. This equipment must be installed, adjusted and put into operation only by a qualified individual or service agency that is:

yLicensed or certified to install and provide technical service to oil heating systems.

yExperienced with all applicable codes, standards and ordinances.

yResponsibleforthecorrectinstallationandcommission of this equipment.

ySkilled in the adjustment of oil burners using combustion test instruments.

The installation must strictly comply with all applicable codes, authorities having jurisdiction and the latest revision of the National Fire Protection Association Standard for the installation of Oil-burning Equipment, NFPA 31 (or CSA- B139 and CSA-B140 in Canada). Regulation by these authorities take precedence over the general instructions provided in this installation manual.

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