Lochinvar Wall Mount Boiler WH 55-399 - Manual (Page 62)

Installation & Operation Manual
10
Start-up
62
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. 11-1, page 70).
5. Locate the pinhole button below 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 fire at ignition speed and
will then modulate up to full fire.
6. Insert the probe from a combustion analyzer into the hole
left by the removal of the flue temperature sensor.
7. Once the boiler has modulated up to full fire, 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 specified range,
reference the Troubleshooting Section of the Knight Wall
Mount Service Manual for possible causes and corrective
actions.
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 Knight Wall Mount 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 Knight Wall Mount
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
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 off power at source and replace the flue temperature
sensor into the flue pipe connection.
10. Place the boiler back into normal operation.
You must replace the flue gas temperature
sensor to prevent flue gas spillage into
the room. Failure to comply could
result in severe personal injury, death, or
substantial property damage.
ƽ WARNING
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.
Natural Gas Propane
CO
2
O
2
CO
2
O
2
8.0% - 10% 3.0% - 6.5% 10.0% - 11% 4.1% - 5.4%