Patterson-Kelley P-K STORM ST-8000 Installation And Owner's Manual page 79

3. Check burner for signs of deterioration or corrosion. Replace burner immediately if any
deterioration, corrosion, or damage is found. If damage to the burner is suspect from improper
combustion settings, be sure to do a combustion check to the factory preferred settings.
The burner may be cleaned with water if any accumulated dust or lint is found. This must be
done with the burner outside of the combustion chamber.
4. Inspect combustion chamber when the burner door is open. Pay careful attention to the door O-
Ring, Braided Rope Gasket, and the door's insulation/refractory. If any of these show signs of
damage or deterioration; they will need replaced immediately. Note any signs of deterioration or
build-up of deposits on the coils of the heat exchanger. Clean as necessary following the
procedure in 5.2.
Drain and flush the water side of the heat exchanger as required (separate from system flush) using
clean water only. This heat exchanger comes with a drain valve; it is located on the back of the heat
exchanger above the exhaust vent. To flush water side of heat exchanger, it is recommended to
first isolate the boiler from the system. Remove pressure from the boiler piping. It is then
recommended to attach a hose or piping to the drain valve on the heat exchanger. That hose (or
piping) should be run to a floor drain. Open the drain valve to drain water from the boiler piping. It is
then recommended to remove the flow switch from the outlet piping. Once the flow switch is
removed, utilize the 1" NPT opening to attach a hose. The hose should then be pressurized with
clean water, with the drain valve to the boiler open and piped to a floor drain. Flush the heat
exchanger for several minutes. When complete, remove any hoses or piping, and reinstall
components to their operating positions.
DO NOT ALLOW THE DRAIN VALVE TO BE OPEN INSIDE THE CABINET WITHOUT
***Do this flush at low pressures— just enough pressure to push water through the
Revised: February 2, 2024
Released: February 2, 2024
18
RUNNING PIPE OR HOSE TO A DRAIN.
exchanger and out of the drain valve***.
 Patterson-Kelley 2024
All Rights Reserved.
®
P-K Storm Gas Fired Boiler
Technical Service 1.877.728.5351
2691000403 P-K Storm ST2500-ST8000
Installation and Owners Manual Rev G.docx
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