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16
Start the Burner
Burner start procedure
(Before proceeding, turn off and lock out electrical
power and close the main leak test cock to shut off
gas to the burner.)
With the power and main gas supply to the burner
turned off, make sure gas has not accumulated in
the boiler or fl ues.
Check the initial air settings (shutter & band) for
input fi ring rate. Check the manufacturer’s settings
either on the nameplate shown in Figure 1 or
listed in Table 2. If adjustment is necessary refer to
Figure 11 and loosen the adjustment screws then
twist the shutter and/or air band until the indicators
point to the values shown on the nameplate or
listed in Table 2.
With the main gas supply valve closed. Set the
limit or controller to call for heat then apply power
to start the burner. Reset the high and low gas
pressure switches if necessary.
1.
2.
3.
In order to check the function of each component
(i.e: fl ame safeguard sequence, airfl ow proving
switch, ignition transformer, gas valves, safety
lockout timing, etc.), with the gas supply closed off,
monitor a complete burner run sequence. Note that
the fl ame safeguard control will lock out since the
fuel supply has been closed off.
If component operation sequence and function is
correct, reset the fl ame safeguard and initiate a
new cycle. Monitor the start-up cycle and manually
open the main leak test cock as soon as the fl ame
safeguard powers the safety shutoff valves. If the
boiler room is quiet you may be able to hear the
valve open, if not you can generally place your
hand on the valve and feel it open. After you have
observed main fl ame for a brief time, trip any of
the switches in the limit string to shut the burner
down. Monitor the fl ame and safety shutoff valves
to assure that shutdown is controlled by the valves
and that they operate properly. With this test
passed you may safely initiate automatic start-ups
on subsequent cycles.
4.
5.
Verify input fi ring rate
Clock the meter for CFH and calculate the
input fi ring rate. Compare the calculated rate to
the specifi ed input for the boiler found on the
specifi cation sheets and on the rating plates for
the burner and boiler. Do not exceed the specifi ed
maximum input for the boiler.
Attach a manometer to the manifold test port, clock
the meter, and adjust the regulated pressure until the
specifi ed input level is achieved. Refer to Table 2.
Be sure to set the breech or furnace pressure to the
correct value, since this will have an effect on the
manifold pressure.
1.
2.
3.
Section: Start the Burner
Professional Installation
and Service Required
Incorrect installation and mishandling
of start-up could lead to equipment
malfunction and result in asphyxiation,
explosion or fi re.
This burner must be installed and prepared for start-
up by a qualifi ed service technician who is trained
and experienced in commercial gas burner system
installation and operation.
Do not attempt to start the burner unless you are
fully qualifi ed.
Do not continue with this procedure until all items in
the ‘Prepare the Burner for Start-up’ section have
been verifi ed.
Carefully follow the wiring diagrams, control
instruction sheets, fl ame safeguard sequence
of operation, test procedures and all appliance
manufacturer’s directions that pertain to this
installation.
If any of these items are not clear or are unavailable,
call Beckett at 1-800-645-2876 for assistance.
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