61
10
Start-up
(continued)
Check fl ame and combustion
(continued)
4. Place the boiler into the active position by pressing the
RIGHT SELECT [ON] key (FIG. 11-1, page 69).
5. Locate the pinhole button above the RESET button on
the display board (FIG. 11-1). Insert a thin wire (such as
a paper clip) into the hole and press the button once and
hold for 5 seconds to place the boiler into Service Mode.
In Service Mode the boiler will fi re at ignition speed and
will then modulate up to full fi re.
6. Insert the probe from a combustion analyzer into the
combustion measurement port (see FIG. 10-3). There
is a stop underneath the combustion measurement port
to prevent the probe from collecting condensate at the
bottom of the fl ue collector.
7. Once the boiler has modulated up to full fi re, measure
the combustion. The values should be in the range listed
in Table 10A below. The CO levels should be less than
150 ppm for a properly installed unit.
If the combustion is not within the specifi ed range,
reference the Troubleshooting Section of the FTXL
Service Manual for possible causes and corrective actions.
Set space heating operation
Determine controlling sensor
For space heating systems, the temperature control can be
based on one of three sensors; the inlet, outlet, or system
supply sensor. The SMART SYSTEM control is programmed
at the factory to control the temperature of the outlet
sensor. The control will automatically switch to the system
supply sensor once it is connected. If it is desired to base
the temperature control on the inlet sensor, the appropriate
parameter must be changed in the control. See the FTXL
Service Manual for a detailed explanation of this procedure.
Verify space heat circulator mode
The Space Heating Mode controls both the system pump
(if connected), and the boiler pump. When the SMART
SYSTEM control receives a space heating call for heat, it turns
on the system pump. If the set point is not met, or the system
sensor is not connected, it also turns on the boiler pump.
After the space heating call for heat ends, the system pump
continues to run for a short period of time. The system pump
can be programmed to run continuously, except during
outdoor shutdown. Other settings may affect the operation
of the boiler and system pumps, as explained on the following
pages. If the boiler pump was running, it continues to run
for a short period of time as well. These pump delays are
factory set to 30 seconds. If different delays are desired, the
appropriate parameters in the control must be changed. See
the FTXL Service Manual for a detailed explanation of this
procedure.
Adjust set point temperature(s)
Table 10A Flue Products Chart
8. Once the combustion analysis is complete, test the
safety shutoff device by turning the manual shutoff
valve to the OFF position and ensuring that the boiler
shuts down and registers an alarm. Turn the manual
shutoff switch to the ON position and reset the control.
9. Turn the main power off to the boiler and replace the
plug in the fl ue sample port.
10. Place the boiler back into normal operation.
You must replace the plug in the fl ue
sample port to prevent fl ue gas spillage
into the room. Failure to comply could
result in severe personal injury, death,
or substantial property damage.
WARNING
Natural Gas
Propane
CO
2
O
2
CO
2
O
2
8.0% - 10%
3.0% - 6.5%
9.0% - 11%
4.1% - 6.9%
Please note that the brackets ([]) denote
screen status.
NOTICE
The NAVIGATION dial may be used during normal
operation to adjust the space heating and tank set point
temperatures.
1. From the Status Screen press the NAVIGATION dial.
2. Turn the NAVIGATION dial counterclockwise to select
the appropriate set point.
3. Press the NAVIGATION dial to adjust the temperature.
Rotate the NAVIGATION dial to change the setting.
4. Once the desired temperature is displayed, press the
RIGHT SELECT [SAVE] key.
5. If necessary repeat Steps 3 and 4 to make adjustments to
additional set points.
6. Press the RIGHT SELECT [HOME[ key to upload the
changes.
7. If the RIGHT SELECT [SAVE] key is not pressed, the
new settings will be discarded.
Installation & Operation Manual
Figure 10-3 Combustion Measurement Port
