Crown Boiler KSZ175 User Manual
Page 31
29
IMPOrtant
• CLEAN THE BOILER EVEN IF THERE ARE NO SIGNIFICANT SOOT DEPOSITS. FAILURE TO
REMOVE ALL SULFUR AND ASH DEPOSITS ANNUALLY CAN CAUSE SEVERE CORROSION
DAMAGE.
• WHEN CLEANING THE REAR FLUE PASSAGE, BE CAREFUL NOT TO PUSH THE BRUSH TOO FAR
BEYOND THE BOTTOM OF THE PINS. DOING SO MAY DAMAGE THE TARGET WALL.
a) Make sure that the vent system is free of obstructions and soot.
b) Make sure that all vent system supports are intact.
c) Inspect joints for signs of condensate or flue gas leakage.
d) Inspect venting components for corrosion or other deterioration. Replace any defective vent system components.
4) Service the oil burner:
a) Replace oil nozzle with identical make and model (see Table 3).
b) Inspect the electrodes. Replace if they are deteriorated. Make sure that the electrode position is set according to the
burner manufacturer’s instructions.
c) Remove and clean fuel pump strainer.
d) Remove any accumulations of dust, hair, etc. from the air shutter, blower wheel, and other air handling parts of the
burner.
5) Replace the fuel oil line filter element and gaskets.
6) Inspect all oil piping and fittings for kinks and leaks. Repair any found.
7) Inspect the system piping, tankless coil and tankless coil cover gaskets, and boiler plugs for water leaks. Repair any leaks
found immediately.
8) Verify operation of relief valve by manually lifting lever; replace relief valve immediately if valve fails to relieve pressure.
9) Open fuel line shut-off valve(s) and restore electrical power to the boiler.
10) Fire the boiler and check it out using the procedure outlined in “Start-up and Checkout” . This must include checking the
burner adjustments using instruments. Check for proper operation of all controls.
tanKlESS HEatEr MaIntEnancE
•
During the warm months, make sure that the water level in the boiler is 23-1/2 to 25 inches above the floor. Failure to
do this may result in inadequate hot water and/or steaming when there is no call for heat.
•
Maintain the mixing valve in accordance with the valve manufacturer’s instructions.