FUEL LINES

Care should be employed when attaching the oil lines to the fuel unit. Overtightening or twisting will twist the pump-motor mounting plate and put a stress on the motor bearings.

START UP PROCEDURE

General:

  1. Make certain that correct voltage has been supplied to motor and control circuit.
  2. Insure that outside air openings are provided in the boiler room for ventilation, and for admission of air for combustion. The free area of such openings should not be less than 7 square inch opening per 100,000 Btuh burner input, or more as required by local codes.
  3. Check to see that flue, wiring and water level are in order.
  4. Start burner fan motor to prime pump. If pump does not pick up oil within a few minutes, prime the pump with lubricating oil. Do not allow pump to run more than a few minutes without additional lubrication.
  5. Check oil pressure and adjust if necessary. (See REGULATING OIL PRESSURE).
  6. Set air shutters. (See ADJUSTING BURNER) Refer to Figure 1.
  7. Generously lubricate the front motor bearing with SAE #20 oil.

ADJUSTING BURNER (See Figure 1)

Positioning of the nozzle in relation to the face of the cone and the electrodes in relation to the nozzle are very important, also the face of the cone in relation to the face of the choke ring must be set according to the chart for each rate.

If the air shutter openings are too large the oil may not ignite.

  1. This setting will vary somewhat depending upon the grade of oil being used or if No. 1 is used instead of No. 2.
  2. The approximate burner air setting may be determined by observing the fire through the observation port on the front of the boiler. If the flame is smoky, the air shutter should be opened until the fire burns clean, without any trace of smoke. The flame should be bright yellow in color with the tips of the flame turning orange. If the flame is too white, reduce the amount of air admitted; and, if too red or smoky increase the air.
  3. Final adjustments should be made using a flue gas analyzer to measure the CO2 content of the flue gas and a Bacharach model smoke meter or equivalent to determine the amount of smoke (not to exceed a "TRACE").
  4. For checking efficiency only the stack temperature and CO2 may be taken immediately after the fan and refer to the standard efficiency charts for the results. Readings of 5 to 8% taken after the fan correspond to 10 to 12% taken in the rear uptake of the boiler.
  5. The reduction in CO2 reading in the flue is caused by the air being drawn in around the motor shaft for cooling purposes. The motor cooling air is at ambient temperature and, therefore, does not add energy to or subtract energy from the flue gas analysis, it only adds volume to the flue gas. Therefore, applying this data to standard efficiency charts will give a true indication of flue gas loss.