Table of Contents
Advertisement
The entire fuel system should be installed
accordance with the requirement of NFPA No. 31
and local codes and authorities. In Canada, the
entire fuel system should be installed in
accordance with the requirement of CAN/CSA B-
139, and local regulations. Use only an approved
fuel oil tanks piping, fittings and oil filter.
Install the oil filter as close to the burner as
possible. For further details of the oil supply tank
and piping requirements, please
instructions and illustrations in the
instructions shipped with the furnace.
12. OIL FILTER
All fuel systems should include a high quality oil
filter between the fuel oil storage tank and the oil
burner.
13. OIL BURNER NOZZLES
Both front breech and rear breech
certified for multiple firing rates, ranging from
output capacities of 79,000 to 143,000 Btu/h. By
manipulating
the oil burner nozzle,
temperature rise, these furnaces may be fired at
an ideal rate for a wide range of structures. Refer
to Table A-1, and the furnace rating plate to
determine the proper combinations.
14. OIL BURNER ADJUSTMENT
The burner air supply is adjusted to maintain the
fuel to air ratio to obtain ideal
conditions. A lack of air causes "soft" and "sooty"
flames, resulting in soot build-up throughout the
heat exchanger passages. Excess combustion
air causes a bright roaring fire
temperatures resulting in poor fuel efficiency.
Maximum combustion efficiency is achieved with
a No. 1 smoke spot on the
This is not necessarily the optimum setting;
however, because dust will inevitably build up on
the air moving components of the oil burner
assembly. This will result in decreased air supply
with the potential result of soot building up in the
flue gas passageways of
Soot behaves as an insulator and impairs good
heat transfer. Stack temperature will
and the overall efficiency will
means of avoiding this problem, it is advisable to
adjust the air supply to provide no more than
trace smoke spot on the Bacharach Scale.
in
refer to the
oil burner
models are
and
combustion
and high stack
Bacharach Scale.
the heat exchanger.
increase,
decrease. As a
a
BEFORE OPERATING THE FURNACE
CHECK BURNER ALIGNMENT WITH
COMBUSTION CHAMBER. THE END
CONE OF THE AIR TUBE MUST BE
CENTRED TO THE ACCOMODATING
RING PROVIDED IN THE DESIGN OF
THE
COMBUSTION
ADJUST AS NECESSARY.
15. BURNER ELECTRODES
Correct positioning of the electrode
respect to each other, to the fuel oil nozzle, and
to the rest of the burner is essential for smooth
light ups and proper operation. Refer to the
burner instructions shipped with the furnace for
electrode specifications.
NOTE: Beckett AF Series Burner electrode
specifications have been revised.
be adjusted to be 5/16" above the nozzle
centerline.
16. BURNER PRIMARY CONTROL
The furnace is equipped with a primary
combustion control, sometimes refer to as the
burner relay or burner
uses a light sensing device (cad cell) located in
the burner housing, to monitor and control
combustion. Over time, dust or combustion
residuals can build up on the lens of the cad cell
impairing its response to the flame. The cad cell
should be checked for cleanliness and proper
alignment if the primary control frequently shuts
down combustion.
ALL
FURNACE
SENSITIVE AND SHOULD NOT BE
SUBJECTED
PROBLEMS
PERSIST,
SERVICE CONTRACTOR.
6
CHAMBER.
They should
protector relay, which
CONTROLS
TO
TAMPERING.
CALL
tips with
oil
ARE
IF
YOUR
152B0801
Hide quick links:
Advertisement
Table of Contents
