Lochinvar Outdoor Knight Boiler 151-286 - Manual (Page 37)

37
Check flame and combustion
(continued)
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 Outdoor
Knight Boiler 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 boiler is not heating an indirect
DHW (Domestic Hot Water) tank, and the set point is not
met, 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. 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 Outdoor
Knight Boiler Service Manual for a detailed explanation of
this procedure.
Adjust set point temperature(s)
Table 7A Flue Products Chart
8. Once the combustion analysis is complete, test the safety
shutoff device by turning the manual shutoff switch 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.
10. Place the boiler back into normal operation.
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%
7
Start-up
(continued)
Please note that the brackets ([]) denote
screen status.
NOTICE
4. Place the boiler into the active position by pressing the
RIGHT SELECT [ON] key (FIG. 8-1, page 45).
5. Locate the pinhole button below the RESET button on
the display board (FIG. 8-1). 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 fire at ignition speed and
will then modulate up to full fire.
6. Insert the probe from a combustion analyzer into the flue
outlet opening.
7. Once the boiler has modulated up to full fire, measure the
combustion. The values should be in the range listed in
Table 7A below. The CO levels should be less than 150
ppm for a properly installed unit.
If the combustion is not within the specified range,
reference the Troubleshooting Section of the Outdoor
Knight Boiler Service Manual for possible causes and
corrective actions.
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.
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.
Outdoor Knight Boiler Installation & Operation Manual