Unit Startup
168
RT-SVX24J-EN
Note:
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
Table 37, p. 110
to program the minimum (5%)
firing rate. Allow the system to operate for
approximately 10 minutes.
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
Table 48, p. 166
, no adjustment is
necessary.
Note:
It is normal for the low fire CO
2
to be lower than 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
2
or O
2
value.
11. Check the flue gas values at several intermediate
output levels. If corrections are necessary;
– Adjust butterfly linkage
12. Press the STOP key at the Human Interface Module in
the unit control panel to stop the system operation.
Figure 119. Modulating gas regulator
Содержание SEHJ090-162
Страница 40: ...Dimensional Data 40 RT SVX24J EN Figure 13 Evaporative condenser water connection locations RIGHT SIDE VIEW ...
Страница 48: ...Installation 48 RT SVX24J EN Figure 18 Ductwork conversion ...
Страница 58: ...Installation 58 RT SVX24J EN Figure 36 5 Connected tubes 6 install panels Connected tubes 5 6 ...
Страница 75: ...Installation RT SVX24J EN 75 Figure 51 Hot water coil piping Figure 52 Steam coil piping ...
Страница 87: ...Installation RT SVX24J EN 87 Figure 57 Typical field wiring diagram for 90 to 162 ton CV control options ...
Страница 89: ...Installation RT SVX24J EN 89 Figure 59 Typical field wiring diagram for 90 to 162 ton VAV control options ...