Harsco Industrial MACH C1500GG Installation & Owner's Manual page 40

4. Test the low water level cut-out. Refer to Section 3.9.
5. Test low gas pressure switch. Refer to Section 3.9.
6. Check the condensate drain system. Clean and flush as necessary.
Installation and service must be performed by a qualified and knowledgeable installer or service agency who has
been trained on the Harsco Industrial, Patterson-Kelley MACH® boilers.
5.1.4 Semi-Annually (required for boilers operated year round)
In addition to the recommended monthly service:
1. Clean burner of any accumulated dust or lint. See Section 5.2 on "Cleaning the Burner."
2. Inspect burner for any signs of deterioration or corrosion. Replace immediately if deterioration or corrosion is
evident.
3. Check the pH level of the system fluid (refer to section 3.7.4)
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 hi-calcium (or pure) limestone.
Installation and service must be performed by a qualified installer or service agency who has been trained on the
Harsco Industrial, Patterson-Kelley MACH® boiler.
The blower motor is permanently lubricated and does not require periodic lubrication.
5.1.5 Annually
In addition to the recommended monthly 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. See Section 5.2 on
"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 ignitor 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 hi-calcium (or pure) limestone.
7. Examine the venting system at least once a year. 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.
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MACH® Gas-Fired Boiler