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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 the Section
combustion settings table. It is 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.
Cleaning the Burner & Combustion Chamber
Patterson-Kelley recommends cleaning burner and combustion chamber once annually:
6.2.1 MACH C-1500H & C-2000H
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 right 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. Remove the power and signal cables from the combustion blower.
8. Locate the angled burner hood casting located directly in front of the burner hole. Refer to
Section
7.3
for an illustration of these components.
9. Remove the four M12 flanged nuts connecting the angled burner hood casting to the four burner
studs.
10. Remove the six M8 screws connecting the combustion blower flange to the air/gas mixer head
flange.
11. Gently remove the combustion blower and angled burner hood casting out the front door.
12. Gently remove the burner gasket and set aside. If the gasket is torn or damaged, discard this
gasket.
13. Carefully remove the burner from the boiler and clean with pressurized water.
Revised: January 3, 2020
Released: January 3, 2020
Patterson-Kelley 2020
All Rights Reserved.
®
P-K MACH
Technical Service 1.877.728.5351
1004905981 P-K MACH C1500H-C4000 Installation and
Owners Manual (Rev F Jan-2020).docx
Gas Fired Boiler
3.11
Page 63
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