Installation & Operation Manual

12 Maintenance Maintenance and annual startup

Table 12A Service and Maintenance Schedules

Service technician

(see the following pages for 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)

 

 

 

 

 

• Verify flue and air lines in good condition

UP

and sealed tight

 

 

 

• Check

system water

pressure/system

-

piping/expansion tank

 

 

START

• Check control settings

 

 

• Check

ignition

and

flame

sense

ANNUAL

electrodes (sand off any deposits; clean

• Perform

start-up

checkout

and

 

and reposition)

 

 

 

 

• Check wiring and connections

 

 

performance verification per Section 10.

 

• 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.

 

If combustion or performance indicate need:

Clean heat exchanger

Remove and clean burner using compressed air only

Clean the blower wheel

Owner maintenance

(see the Knight XL User’s Information Manual for

instructions)

Daily

• Check boiler area

• Check pressure/temperature

 

 

gauge

 

 

 

• Check vent piping

 

• Check air piping

Monthly

• Check air and vent termination

 

screens

 

• Check relief valve

 

• Check condensate drain system

 

• Check air vents

 

 

Periodically

• Test low water cutoff (if used)

 

• Reset button (low water cutoff)

 

 

Every

• Check boiler piping (gas and

water) for leaks

6 months

• Operate relief valve

 

 

 

End

• Shut boiler down (unless boiler

of season

used for domestic hot water)

months

 

 

 

72

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Lochinvar 801, 400 operation manual Maintenance Maintenance and annual startup, Service technician, Instructions

400, 801 specifications

The Lochinvar 801,400 is a cutting-edge solution in the realm of high-efficiency commercial water heating. This model represents a significant advancement in the design and functionality of water heaters, catering primarily to the demands of large-scale facilities like hotels, hospitals, and large industrial operations.

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