16
After final adjustment, tighten lock screws on the air inlet, let unit cool and restart burner to be sure burner
operates on a cold start. Remove the pressure gauge and install pipe plug.
D. DRAFT
Adjust the draft regulator so that there is -.01" to -.04" draft over the fire, maximum. Take readings and
adjust air so that a minimum of 9 1/2% CO
2
is obtained with a smoke reading between 0 and 1.
Draft reading in the stack should be -.02" to -.05". High Draft may be caused by over firing or too much
excess air.
DO NOT
OPERATE
the burner if there is back draft caused by down draft. Back pressure (back draft or
down draft) may also be caused by the chimney termination being lower in elevation than surrounding
objects, such as buildings, hills, trees, rooftops, etc. Back pressure may be caused by an exhaust fan in
the building. Correct this situation before operating the burner.
E. NOZZLE (OIL INPUT) VARIATIONS
Fuel oils vary greatly. Because of this, nozzles will not always deliver the gallons per hour or angle of
spray indicated on the nozzle. In addition, it has been found that in certain areas, due to local conditions,
nozzles other than those furnished as original equipment offer better performance due to the type of oil
being delivered. Oil service personnel will carry several nozzles of different manufacture, angles and
spray types in order to obtain the most suitable performance for the particular application.
PART 14: IMPORTANT INSTALLATION AND MAINTENANCE
REMINDERS
A. INSTALLATION
1. Install all electrical work in strict accordance with local codes and ordinances.
2. All unions must be of the ground seat type.
3. When the tank is below the burner, a check valve must be installed in the suction line to
prevent oil from returning to the storage tank when unit is not in operation.
4. Bleed the pump and make sure oil is clear of air bubbles. If frothy, check lines for air leaks at
fittings. Check the oil filter gaskets and make sure filter cartridge is clean.
5. Set the draft to a range of -.02" to -.05".
6. See that the smoke pipe enters the chimney far enough to be tight and not so far as to reduce
flue area. It should end flush with the inside of the chimney.
7. There must be at least -.01" draft over the fire.
8. Make certain there is no backpressure such as down draft or back draft.
9. There must be sufficient air in heater room for proper combustion at all times.
10. Explain the operation of the burner to the owner.
11. Show owner how to operate controls and main cutout switch.
12. Hang burner-operating instructions as supplied with burner in prominent place near
installation.
B. MAINTENANCE
1. Make sure that the flue and venting system is checked at least once a year by a plumbing
professional or the oil supplier's service technicians.
2. The tank should be inspected every six months for LIME AND SEDIMENT accumulations. If
lime or sediment is present, remove by scraping or with chemical lime remover.