Cleaning The Burner & Combustion Chamber - Harsco Industrial SC-2000 Installation & Owner's Manual

5.1.4 Semi-Annually (Required for Boilers Operated Year Round)
In addition to the recommended monthly service:
burner of any accumulated dust or lint.
1. Clean
Inspect burner for any signs of deterioration or corrosion
2.
evident.
3. Check the pH level of the system fluid. Verify the pH is in accordance with Appendix 3.
4. Inspect and clean the condensate system and check for leaks. If a condensate neutralization kit is present, open
the lid and inspect the limestone rocks. If they are absent or have been significantly worn away, replace them with new
limestone rocks. Use high-calcium (or pure)
5.1.5 Annually
In addition to the recommended monthly and semi-annual service:
1. Inspect and clean the inlet screen of any accumulated dust or lint.
2. Check burner and clean off any soot or foreign material that may have accumulated.
"Cleaning the Burner." Check for corrosion of the burner and its parts. If there is evidence of deterioration or corrosion,
replace immediately. Inspect combustion chamber when the burner is removed for inspection. Note any signs of
deterioration. Clean as necessary.
3. Inspect and clean heat exchanger. Remove the various covers to inspect the flue gas passageways. Clean the
combustion side casting pins by flushing with clean water and blowing dry with compressed air. Do not use any
cleaning agents or solvents. Do not use soap. A soft nylon brush may be used in accessible areas. Be sure to inspect
the condensate collection pan that is the lowest part of the heat exchanger.
4. Replace the ignition electrode and gasket.
5. Drain and flush the water side of the heat exchanger as required (separate from system flush) using clean water
only.
6. Inspect and clean the condensate system and check for leaks. If a condensate neutralization kit is present, open
the lid and inspect the limestone rocks. If they are absent or have been significantly worn away, replace them with new
limestone rocks. Use high-calcium (or pure) limestone.
7. Examine the venting system. Refer to the vent manufacturer's instructions for requirements in addition to those
listed below.
a. Check all joints and pipe connections for tightness.
b. Check pipe for corrosion or deterioration. If any piping needs replacing, do so immediately.
c. Inspect and clean any screens in the vent terminal.
8. Qualified service personnel should thoroughly inspect the heating system and correct any problems prior to re-
starting the boiler.
9. Qualified service personnel should thoroughly inspect the heating system and correct any problems prior to re-
starting the boiler.
10. Perform combustion analysis and readjust as necessary according to
recommended that a copy of this report is filed for future reference.
11. Perform a leak test of the gas valves in accordance with the manufacturer's instructions.
5.2 Cleaning the Burner & Combustion Chamber
Harsco Industrial, Patterson-Kelley recommends cleaning the burner and combustion chamber at least once annually:
1. Lockout/tagout gas supply to the boiler.
2. Lockout/tagout electrical power to the boiler.
3. Disconnect the condensate neutralization tank piping in order to install a temporary drain hose into the
condensate drain. Run the open end of this hose to a nearby floor drain.
4. Open the front and side doors of the boiler.
5. Protect the electrical and control components from exposure to water with towels, a nylon tarp, or plastic wrap.
6. Remove the wires/cables from the ignition electrode and flame/ionization rod.
7. Locate the blower and burner transition pieces located directly in the front of the boiler. Refer to Section 6.2 for
an illustration of these components.
8. Remove the nuts and bolts connecting the blower transition piece to the burner transition piece. The blower
transition piece will remains supported in place.
9. Remove the nuts holding the burner transition piece to the studs on the front of the boiler.
10. Pull out the burner transition piece with the 2 gaskets and set aside.
Harsco Industrial, Patterson-Kelley Technical Service 1.877.728.5351
Refer to Section 5.2
. Replace immediately if deterioration or corrosion is
l
imestone.
39
Gas Fired Boiler
on "Cleaning the Burner."
Refer to Section 5.2
Table 3.11.2 and Section
on
3.11.2. It is