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5 Maintenance
5.1 Preventative Maintenance
NOTICE! Proper maintenance schedule and record
keeping is critical for optimum performance and to
maintain the Patterson-Kelley warranty.
NOTE: The combustion blower motor is permanently
lubricated and does not require periodic lubrication.
Daily Preventative Maintenance
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
display. Observe any unusual noises or operating
conditions and make the necessary corrections. Notify
responsible individuals for required corrective action or
repair.
Weekly Preventative Maintenance
Observe the conditions of the main flame. A normal high fire
flame is mostly orange with a blue halo. A normal low fire
flame will glow reddish-orange. However, do not attempt to
adjust the flame "by eye".
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 carbon dioxide (
(
) analyzer and compared to the values stated in the
O
2
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 Preventative Maintenance
1. Press the "Info" button on the NURO
load the Information Screen and scroll down to view
the flame signal measured in Volts. Typical flame
signals should read between 20-50V. If the flame
signal is below 10V, the UV scanner may need to be
replaced.
2. Test the low water level cut-off. Refer to
applicable).
Revised: March 15, 2021
Released: March 15, 2021
®
touchscreen
) or oxygen
CO
2
®
touchscreen to
3.10.2
(if
© Patterson-Kelley 2021
All Rights Reserved.
P-K SOLIS™
Gas Fired Boiler
Technical Service 1.877.728.5351
Lockout/Tagout procedure must be
employed when servicing this unit.
Failure to do so could result in
electrocution, injury, or death.
Label all wires prior to disconnection
when servicing controls. Wiring errors
can cause improper and dangerous
operation.
Au moment de l'entretien des
commandes, étiquetez tous les fils
avant de les débrancher. Les erreurs
de câblage peuvent nuire au bon
fonctionnement et être dangereuses
Use care when reassembling main gas
line and ensure all connections are
tight. Use a leak detector to check for
leaks before and after servicing any
component of the gas piping. Failure
to do so could result in injury or death.
Use care when servicing the boiler to
prevent the accumulation of gas in or
around the combustion chamber.
Pockets of accumulated gas are
subject to combustion and/or
explosion which could result in injury
or death.
Determine the cause of any lockout or
errors before resetting the boiler. If
able to determine cause of lockout,
take appropriate corrective action. If
unable to determine cause of the
problem, call a qualified service
technician. Verify proper operation
after servicing.
S'assurer que l'appareil fonctionne
adéquatement une fois l'entretien
terminé
Check daily to be sure that the boiler
area is free and clear of any
combustible materials, including
flammable vapors and liquids.
2701000090 P-K SOLIS NURO Installation and
Owners Manual (Rev A).docx
Page 56
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