Lochinvar 81-286 Maintenance Maintenance and annual startup, Service technician, Instructions

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)

UP

• Verify flue and air lines in good condition

and sealed tight

-

START

• Check

system water

pressure/system

piping/expansion tank

ANNUAL

• Check control settings

and reposition)

• Check ignition and flame sense

electrodes (sand off any deposits; clean

• Check wiring and connections

• Perform

start-up

checkout

and

performance verification per Section 10

in the Knight 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 above

return water temperature.

Periodically

• Test low water cutoff (if used)

• Reset button (low water cutoff)

• Check boiler piping (gas and

Every

water) for leaks

6 months

• Operate relief valve

• Shut boiler down (unless boiler

End

used for domestic hot water)

of season

months