Power Flame C1-GO-10, Инструкция по установке и эксплуатации

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25. Turn the burner on and let it advance to the main flame
light off position, taking action as necessary to hold
the linkage at the low fire position by using a manual
potentiometer or electrically disconnecting the
modulating motor. Power Flame burners are test fired
at the factory, and linkage adjustments for modulation
are made at that time. Note that the factory settings
relate to good operation while firing into open test pits,
and will therefore not normally relate directly to the
absolute fuel/air ratios while firing under specific field
conditions. It is suggested that the factory settings be
noted and marked on the linkage prior to proceeding
with final adjustment. This will allow a return to those
settings as initial reference points, if need be.
26. On internal bypass nozzle systems, oil pressure at the
pump nozzle port will generally be between 270 and
300 psig from low to high fire. At certain input ranges
of burner models C4 and C5, nozzle pressure may fall
off to approximately 240 psig when in the low fire
position. For oil pressure settings on simplex nozzle
systems, refer to page 34, Table 9.
27. On internal bypass nozzle systems, typical low fire
nozzle bypass line pressures will generally be in the
area of 60 to 90 psig. High fire nozzle bypass line
pressures will generally be in the range of 200 to 225
psig, but these pressures can vary, depending upon the
nozzle selected for a particular firing application. Refer
to page 31, Table 8 for specific nozzle bypass line
pressures. Refer to page 34, Table 9 for simplex nozzle
systems and pressures.
28. With the burner in the factory set low fire position,
adjust air and fuel linkage to good fuel/air ratio low fire
settings (8 - 10% CO
2
and #0 - #2 smoke reading).
Mark the linkage at the new settings.
29. Increase the firing rate to the midway point. Set the
fuel/air ratios to achieve good combustion values (9 -
11% CO
2
and #0 to #2 smoke reading). Mark the
linkage as a reference point for this new mid-fire
position.
30. Increase the rate to the high fire position and repeat the
tests done for the mid-point adjustment. Results should
be in the area of 12
1
/
2
% CO
2
and no more than #2
smoke. The metering device setting and air damper
openings should be marked and noted to obtain the
high fire reference points.
31. Operate the modulating lever arm on the modulating
motor through the three previously determined reference
points. Minor setting modifications may be required to
ensure that the reference points are acquired.
32. Tighten (finger tight) the hex bolt to the linkage rod at
the swivel on the modulating motor driver arms, and
run the motor through its full travel to ensure that
linkage is free and that the limits on the metering
device and air dampers are not exceeded.
33. Intermittently operate the burner until the water is
warm in the boiler, or follow specific initial firing
recommendations provided by the heat exchanger
manufacturer.
34. Tighten all linkages and permanently mark settings.
35. Limit control check should be made as follows:
A) Permit the burner to run until the limit control
settings have been reached.
B) The burner should turn off when the set temperature
or pressure has been reached. If the burner is Low/
High/Low or Modulating, set the controls so that the
burner will go to the low fire position before the
operating limit control turns the burner off.
C) After the differential pressure or temperature
drop, the burner should start automatically.
D) With the unit running normally, open the
blowdown valve and remove water to the point
below the low water cutoff setting. The burner
should turn off and restart automatically when
the proper water level is re-established. (If manual
reset type low water cutoff is used, it will have
to be reset.)
E) Set and check operation of:
(1) Low Oil Pressure Switch (if supplied). Set
at 80% of low fire oil pressure. Check visually,
or test electrically to confirm that circuit
opens at the proper oil pressure.
(2) Blower Combustion Air Flow Switch (if
supplied).
(a) Shut burner power off.
(b) Disconnect both wires at the air flow
switch and temporarily clip them
together. Make sure that they cannot
ground against anything, since they
will be powered with 110 volts during
the test.
(c) Put a continuity meter across the two
terminals.
(d) Disconnect the wire to the main
automatic oil valve.
(e) Start the blower motor. The meter
should read electrical continuity as soon
as the blower starts.
(f) Disconnect the blower motor lead wire,
or open the main power disconnect
switch to the burner. Within 4 to 5
seconds after the blower motor is de-
energized, the meter should indicate an
open air flow switch circuit (no continuity).
(g) If the switch does not open in 4 to 5
seconds, readjust accordingly. Turn the
air flow switch adjustment screw
clockwise to shorten cut-off response
time, and counter-clockwise to lengthen
cut-off response time.
(h) Turn the burner power off. Remove the
shorting clip from the two disconnected
wires and let them hang loose. (They
will be powered with 110 volts, so do
not let them ground out.)
(i) Reconnect the wire to the main
automatic oil valve. Turn the burner on.
With the air flow switch wires discon-
nected, the burner should go into a
purge cycle, but neither the ignition nor
the main fuel valve circuits will be
energized. If they do energize, there is
a wiring problem. Correct as required.
(j) Turn power off. Reconnect the air flow
switch wires to the air flow switch
terminals. Place burner back into
normal operation.
(3) All burner and heat exchanger controls and
operating devices.
36. The Owner’s Operating Instructions, page 51 of this
manual, should be posted in a clearly visible location
close to the burner.
37. If the burner operation is abnormal, refer to Section
7 Trouble Shooting Suggestions, as well as trouble
shooting information in the flame safeguard
C30
Rev.709