Trane IntelliPak 2 Series Installation, Operation And Maintenance Manual page 183

primarily (75%) blue in color with an orange tip.
5. Check the inlet gas pressure at the modulating gas
valve. The inlet pressure should be 6" to 8" w.c.
6. Use a carbon dioxide analyzer and measure the
percentage of carbon dioxide in the flue gas. Refer
to and Figure 137, p. 181
dioxide levels. Take several samples to assure that
an accurate reading is obtained. The C0
should fall in the ranges shown in the guide values
in Table 63, p. 181.
N N o o t t e e : : The burner capacity is controlled by the
movement of the air damper. This has been
preset at the factory and normally does not
need field adjustment. The combustion
quality (air/gas) is controlled by the setup of
the air damper and butterfly valve linkage
relationship.
7. Use the tables in "Voltage Imbalance," p. 105
program the minimum (5%) firing rate. Allow the
system to operate for approximately 10 minutes.
Figure 140. Modulating gas regulator
Butterfly Valve
Note: Appx
90 Degree Angle
Linkage Arm
Low Fire Switch
(Set to close near low fire)
High Fire Switch
(Set to close near high fire)
RT-SVX24Q-EN
for the proper carbon
level
2
to
8. Use a carbon dioxide analyzer and measure the
percentage of carbon dioxide in the flue gas. If the
measured carbon dioxide level is in the ranges
shown in the Guide Values
adjustment is necessary.
N N o o t t e e : : It is normal for the low fire CO
the high fire.
9. If the measured carbon dioxide level is below the
recommended values for low heat, return the
burner to 90% fire rate and repeat step 6, to achieve
optimum combustion.
10. Program the burner for 100% operation and recheck
the CO or O value.
2 2
11. Check the flue gas values at several intermediate
output levels. If corrections are necessary, adjust
the butterfly linkage.
12. Press the STOP key at the Human Interface Module
in the unit control panel to stop the system
operation.
Combustion Air
Pressure Switch
Modulation
Motor
U U n n i i t t S S t t a a r r t t u u p p
Table 63, p. 181, no
to be lower than
2
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