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Finned copper tube gas boilers & water heaters – Boiler Manual
28
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6. If
CO
2
and pressure signal are correct, allow the boiler to reach
steady state and verify supply gas pressure and check input rates
as explained in the Gas Supply Piping section.
7. Remove jumper on AA and allow boiler to sett le into minimum
input. Observe the combustion readings to ensure the boiler is
operating correctly.
8. When fi nished, disable the low fi re hold switch and replace test
ports to normal state. Remove the manometer connections and
close the control panel door.
9. Th e Futera XLF boiler allows for many modes of operation and
control methods. Reference the XLF HeatNet Control IOM.
TO TURN OF F GAS TO APPLIANCE
1. Set the operating control to its lowest sett ing.
2. Turn off all electric power to the boiler if service is to be
performed.
3. Close the manual main and pilot gas shut-off valves.
CHECKING & ADJUSTMENTS
Proper polarity of the ignition transformer wiring is
import. Improper wiring of the ignition transformer
can result in an explosion causing extensive property
damage, severe personal injury or death!
Spark gap
With the main and pilot gas manual valves in the closed position
energize the unit. Look through the sight glass in the pilot tube
to observe the trial for ignition. Make sure that the spark is strong
and continuous. If not, check and adjust the spark gap as shown in
Figure 20.
Figure 20
Spark Gap
