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420012001500 - 03182024 - Rev. 04
B. Improper Combustion
WARNING
WARNING
WARNING
DO NOT USE THIS BOILER IF ANY PART HAS BEEN
SUBMERGED IN WATER. Immediately call a qualified service
technician. The boiler MUST BE replaced if it has been submerged.
Attempting to operate a boiler that has been submerged could create
numerous harmful conditions, such as a potential gas leakage causing
a fire and/or explosion, or the release of mold, bacteria, or other
harmful particulates into the air. Operating a previously submerged
boiler could result in property damage, severe personal injury, or
death.
NOTE: Boiler damage due to flood or submersion is considered an
Act of God, and IS NOT covered under product warranty.
DO NOT alter or modify the appliance or appliance controls. Altering
any NTI boiler with parts not manufactured by NTI WILL INSTANTLY
VOID the boiler warranty and could result in property damage,
personal injury, or death.
This appliance is equipped with a three prong plug. It should only be
plugged directly into a properly grounded three prong receptacle. DO
NOT remove the ground plug from the plug.
This appliance provides an overheat shutdown limit. In the event the
appliance water temperature exceeds the setpoint of the control limit,
the cutoff will trip and the appliance will shut down. Certain local
codes require additional temperature limits. In addition, certain types
of systems may operate at temperatures below the minimum setpoint
of the limit provided with the appliance. Contact the manufacturer for
additional overheat controls.
Do not use this boiler for anything other than its intended purpose (as
described in this manual). Doing so could result in property damage
and WILL VOID product warranty.
Do not obstruct the flow of combustion and ventilating air. Adequate
air is necessary for safe operation. Failure to keep the exhaust vent
and combustion air intake clear of ice, snow, or other debris could
result in property damage, serious personal injury, or death.
C. Gas
Should overheating occur or gas supply fail to shut off, turn off the
manual gas control valve to the boiler.
D. When Servicing the Boiler
Be sure to disconnect electrical power before opening boiler cabinet or
performing service. Label all wires while performing service to ensure
proper re-wiring of the appliance. Wiring errors can cause improper
or dangerous operation. Failure to do so could result in electrical
shock, improper boiler or system operation, property damage, serious
personal injury, or death.
Due to the low water content of the boiler, improper sizing of the boiler
with regard to heating system load will result in excessive cycling and
accelerated component failure. DO NOT under or oversize the boiler
to the system. Modular boiler installations greatly reduce the likelihood
of boiler oversizing. NTI DOES NOT warrant failures caused by
improperly sized boiler applications.
High heat sources (sources generating heat 100oF / 37oC or
greater, such as stove pipes, space heaters, etc.) may damage plastic
components of the boiler as well as plastic vent pipe materials. Such
damages ARE NOT covered by warranty. It is recommended to keep
a minimum clearance of 8” from high heat sources. Observe heat
source manufacturer instructions, as well as local, state, provincial,
and national codes, laws, regulations and ordinances when installing
this boiler and related components near high heat sources.
CAUTION
NOTICE
E. Boiler System
• Thoroughly flush the system (without the boiler connected)
to remove sediment. The high-efficiency heat exchanger can
be damaged by build-up or corrosion due to sediment. The
manufacturer recommends a suction strainer in this type of
system.
• Do not use petroleum-based cleaning or sealing compounds in
boiler system. Gaskets and seals in the system may be damaged,
possibly resulting in substantial property damage.
• Do not use “homemade cures” or “boiler patent medicines”.
Substantial property damage, damage to boiler, and/or serious
personal injury may result.
• Continual fresh make-up water will reduce boiler life. Mineral
buildup in the heat exchanger reduces heat transfer, overheats
the stainless steel heat exchanger, and causes failure. Addition
of oxygen from make-up water can cause internal corrosion
in system components. Leaks in the boiler or piping must be
repaired at once.
NOTE: DO NOT add cold make up water to the system when the
boiler is hot. Thermal shock can potentially cause cracks in the heat
exchanger. Such damage IS NOT covered by warranty.
• To avoid electric shock, disconnect electrical supply before
performing maintenance.
• To avoid severe burns, allow boiler and associated equipment to
cool before servicing.
• Do not use petroleum-based cleaning or sealing compounds in
boiler system. Gaskets and seals in the system may be damaged,
possibly resulting in substantial property damage.
• Do not use “homemade cures” or “boiler patent medicines”.
Substantial property damage, damage to the boiler, and/or
serious personal injury may result.
• Always verify proper operation after servicing the boiler.
NOTE: When inquiring about service or troubleshooting, reference the
model and serial numbers from the boiler rating label.
Part 1 - General Safety Information
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