Maintenance Schedule - Lochinvar KNIGHT XL 100 Series User's Information Manual

2

Maintenance schedule

Service technician
(see the Knight XL Service Manual)
General:
• Address reported problems
• Inspect interior; clean and vacuum if
necessary;
• Clean condensate trap and fill with fresh
water
• Check for leaks (water, gas, flue,
condensate)
• Verify flue and air lines in good condition
and sealed tight
• Check system water pressure/system
piping/expansion tank
• Check fill water meter
• Test boiler water. When test indicates,
clean system water with approved
system restorer following manufacturer's
information.
• Check control settings
• Check ignition
electrodes (sand off any deposits; clean
and reposition)
• Check wiring and connections
• Perform start-up
performance verification per Section 11
in the Knight XL Installation and
Operation manual.
• Flame inspection (stable, uniform)
• Flame signal (at least 10 microamps at
high fire)
• Clean the heat exchanger if flue
temperature is more than 54°F (30°C)
above return water temperature.
• Test low water flow conditions (reference
the Knight XL Service Manual).
If combustion or performance
indicate need:
• Clean heat exchanger
• Remove and
compressed air only
• Clean the blower wheel
Follow the maintenance procedures given throughout this manual. Failure to perform the service and
⚠WARNING
maintenance or follow the directions in this manual could result in damage to the boiler or system, resulting
in severe personal injury, death, or substantial property damage.
and flame sense
checkout and
clean burner using
User's Information Manual
Owner maintenance
(see pages 6 - 8 for detailed instructions)
• Check boiler area
Daily
• Check pressure/temperature
gauge
• Check vent piping
• Check air piping
• Check air and vent termination
screens
Monthly
• Check relief valve
• Check condensate drain system
• Check air vents
• Test low water cutoff (if used)
Periodically
• Reset button (low water cutoff)
• Check boiler piping (gas and
water) for leaks
Every
6 months • Operate relief valve
End
• Shut boiler down (unless boiler
of season
used for domestic hot water)
months
5