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Daily
Observe operating temperature and general conditions. Make sure that the flow of combustion and
intake air to the appliance is not obstructed. Determine the cause of any service codes or lockouts on
®
the NURO
touchscreen display. Observe any unusual noises or operating conditions and make the
necessary corrections. Notify responsible individuals for required corrective action or repair.
Check daily to be sure that the immediate area around the boiler or water heater is free and clear of
any combustible materials, including flammable vapors and liquids.
Weekly
Observe the conditions of the main flame. A normal high fire flame is mostly blue, though the refractory
in the rear of the heat exchanger will glow an orange red color. A normal low fire flame is also blue.
The refractory may not show any orange-red color at low fire. Never attempt to adjust the flame "by
eye". The correct flame/combustion is dependent on the air and gas adjustment.
Correct air adjustment is essential to the efficient operation of this appliance. Ensure that the flow of
combustion and ventilation air is not obstructed. If an adjustment in the combustion appears
necessary, the flue gas composition should be checked with a combustion analyzer and compared to
the values stated in the Combustion Setup and Adjustment combustion settings table in 3.11.2. If an
adjustment to the combustion is necessary, call a qualified and knowledgeable installer or service
agency that has been trained on the Patterson-Kelley appliance.
Monthly
1. Press the "Info" button on the NURO
down to view the flame signal measured in Volts. Typical flame signals should read between 8-
25V.
2. Test the low water level cut-off. Refer to
3. Test the manual reset high-temp limit. Refer to 3.10.4.
4. Test the low gas pressure switch. Refer to 3.10.5.
5. Test operating temperature controls by reducing or increasing temperature settings as
necessary to check burner operation.
6. Check the combustion chamber condensate drain piping for leaks or obstructions.
NOTICE! Installation and service must be performed by a qualified installer or service agency that
has been trained on the appliance.
Semi-Annually
In addition to the recommended monthly service:
1. Check the burner for any accumulated dust or lint. You may clean the burner using only water to
remove accumulated material. Refer to 5.2.
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. Verify the pH is in accordance with
Water Quality Standards Quality Standards for Hydronic Boilers in Multi-Metal Systems
4. Inspect and clean the condensate system and check for leaks. If a condensate neutralization kit
is present, open the lid and inspect the media. If they are absent or have been significantly
worn away, replace them with new media.
Revised: December 8, 2021
Released: December 8, 2021
®
touchscreen to load the Information Screen and scroll
3.10.2
(if applicable).
Patterson-Kelley 2021
All Rights Reserved.
TM
P-K Storm
Gas Fired Boiler
Technical Service 1.877.728.5351
Appendix C –
2691000273 P-K Storm ST2500-ST6000
Installation and Owners Manual Rev C.docx
Page 63
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