60
CHAPTER
1
1
CHAPTER 11 - START-UP PROCEDURES
11.3.4 Check Gas Piping
Check around the unit for gas odor following the proce-
dure outlined in this manual
on page 58
.
If any gas leaks are found or suspected, shut
the unit down immediately. Use a gas de-
tection device or bubble test to locate the
source of the gas leak and repair at once. Do
not operate the unit until the leak is correct-
ed. Failure to comply with this procedure will
result in substantial property damage, seri-
ous injury, or death.
11.3.5 Verify Flame Pattern and Combustion
1. Check the flame pattern through the observation
port of the heat exchanger. The flame should be
blue and stable. The flame should be over the
length of the burner head.
Combustion testing and adjustments must be
performed by a qualified installer, service agen-
cy or the gas supplier. All combustion mea-
surements must be performed with recently
calibrated equipment (1 year max.) to ensure
proper reading and accuracy.
2. Test for CO2 or O2 and for CO during high firing
rate. The combustion readings must be within the
range listed in
Table 4 on page 61
.
The CO level
must not exceed 100 ppm for natural gas and
150 ppm for propane gas when combustion is
correct
. Perform the following procedure to manu-
ally place the burner into high fire.
a. Press the round
INSTALLER
button. Reference
Section 9.1 on page 41
.
b. Enter the installer access code “054” by using
the
LEFT
and
RIGHT
buttons to select a digit
and the
UP
and
DOWN
buttons to change the
digit. Press the
OK
button to enter the access
code.
c. Press the
RIGHT
button to highlight the Manual
Operation icon
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de f
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de
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de f
bbb b
abc
de f
bb
abc
d
abc
de
f b
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b
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de
f b
b
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de
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f b
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bc
d
then press the
OK
button.
d. Press the
OK
button while the FAN icon is high-
lighted to manually fire the burner and power
the CH circulator(s).
DANGER
NOTICE
An adequate CH load must be present to dissi-
pate the heat generated during the combustion
test. If an adequate CH load is not available, an
indirect water heater can be used to dissipate
the heat by creating a DHW call which will en-
able the DHW circulator.
e. Press the
RIGHT
button to adjust the firing rate
from 1% to 100%. Hold down the
RIGHT
but-
ton to rapidly increase the firing rate.
f. Press the
OK
button while the FAN icon is high-
lighted to shutdown the burner.
3. If the combustion levels during high fire (100%) are
outside the acceptable levels, adjust the THROTTLE
SCREW (see
Fig. 16, Fig. 17, &
Fig. 18 on page 31
)
according to
Table 3 on page 61.
4. Once the combustion level is set at high fire (100%),
manually place the boiler into low fire (1%) mode
by pressing the
LEFT
button to adjust firing rate
down.
5. Verify the combustion levels during low fire (1%) are
within the acceptable combustion levels in
Table 4
on page 61.
If the combustion levels at low fire (1%) are
not within the range given in
Table 4 on page
61
, shut the boiler down and contact Trian-
gle Tube Technical Support. Failure to com-
ply with this requirement can result in sub-
stantial property damage, serious injury, or
death.
NOTICE
WARNING
Manual Operation
Released
Off
Off
Off
CH1
FAN
DHW
CH2
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