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6. Locate the blower and burner assembly bolted to the stainless steel heat engine. Refer to
and
7.4.4
for an illustration of these components.
7.
Remove the nuts and bolts connecting the blower transition piece to the burner transition piece.
The blower transition piece will remain supported in place.
8.
Remove the nuts holding the burner transition piece to the studs on the front of the boiler.
9.
Pull out the burner transition piece with the two gaskets and set aside. Discard gaskets.
10. Carefully remove the triangular burner from the boiler and clean with pressurized water
(approximately 40 psig).
Do not attempt to wash the burner while installed in the boiler. When cleaning the burner, use a
mild detergent such as Simple Green to help loosen built-up debris trapped in the burner mesh.
11.
Now that the burner is removed, the burner hole is open which provides access to the
combustion chamber.
12.
Use a pressurized water hose with control nozzle. Begin by spraying just a few seconds of
water into the combustion chamber and then close off the nozzle.
13.
Walk around to the rear of the boiler and ensure the wash water is draining into the temporary
drain hose off the condensate drain. Adjust the temporary drain hose if needed to help drain the
wash water from the boiler.
14. After inspecting the temporary drain hose, continue washing the internal combustion chamber
with pressurized water for several minutes. Spray as much of the internal surface area as
possible.
Be very careful when cleaning to avoid spraying any of the electrical or control components. Water
may cause a short circuit and damage circuitry.
15.
Some SONIC boiler models feature two small washout ports between the upper combustion
chamber and lower economizer. The plugs in these ports can be removed for additional access
to the fireside surfaces. If necessary, continue washing the fireside surfaces through these two
washout ports.
16.
After several minutes of washing, turn off the hose and allow all the wash water to drain from
the boiler.
17.
Reinstall the plugs into the two washout ports (if applicable).
18.
Reconnect the condensate tubing to the condensate neutralization tank.
Reinstall a new gasket over the boiler's threaded studs, and CAREFULLY insert the burner into
19.
the burner hole. Support the burner so it remains horizontal while inserting.
Once the burner is installed, reinstall a new gasket over the burner's flange.
20.
21.
Reinstall the burner transition piece (and lower gasket) and bolt to the burner flange.
22.
Once secured to the burner flange, bolt the burner transition piece to the blower transition piece.
Ensure the gasket between the burner transition piece and blower transition piece is in place.
23.
Reinstall the ignition electrode assembly (if previously removed).
Revised: June 2, 2017
Released: June 2, 2017
NOTE
HARSCO Industrial, Patterson-Kelley 2017
All Rights Reserved.
®
P-K SONIC
Gas Fired Boiler
Technical Service 1.877.728.5351
1004905978 P-K SONIC NURO Installation and
Owners Manual (Rev F Jun-2017).docx
7.4.1
Page 57
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