Lochinvar Kight XL 400-801 - Manual (Page 49)

49
Maintenance and annual startup
Table 9A Service and Maintenance Schedules
Owner maintenance
(see the Outdoor Knight XL User’s Information
Manual for instructions)
Daily
• Check boiler area
• Check pressure/temperature
gauge
Monthly
• Check air and vent termination
screens
• Check relief valve
• Check condensate drain system
Periodically
• Test low water cutoff (if used)
• Reset button (low water cutoff)
Every
6 months
• Check boiler piping (gas and
water) for leaks
• Operate relief valve
End
of season
months
• Shut boiler down (unless boiler
used for domestic hot water)
9
Maintenance
Service technician
(see the following pages for instructions)
General:
• Address reported problems
• Inspect interior; clean and vacuum if
necessary;
• Clean condensate trap and fi ll with fresh
water
• Check for leaks (water, gas, fl ue,
condensate)
• Verify fl ue and air passage ways in good
condition and sealed tight
• Check system water pressure/system
piping/expansion tank
• Check control settings
• Check ignition and flame sense
electrodes (sand off any deposits; clean
and reposition)
• Check wiring and connections
• Perform start-up checkout and performance
verifi cation per Section 7.
• Flame inspection (stable, uniform)
• Flame signal (at least 10 microamps at
high fi re)
• Clean the heat exchanger if fl ue temperature
is more than 54°F (30°C) above return water
temperature.
If combustion or performance
indicate need:
• Clean heat exchanger
• Remove and clean burner using
compressed air only
• Clean the blower wheel
ANNUAL START-UP
Outdoor Knight XL Installation & Operation Manual