Navien NFC-175 Service Manual page 11

DANGER
INSTALLATION REQUIREMENTS
Installation conditions may affect how the boiler is serviced.
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Read all related information in the "Installation Manual".
The Boilers must be installed according to all local and state
●
codes or, in the absence of local and state codes, the most
recent edition of the "National Fuel Gas Code (ANSI Z223.1
/ NFPA 54)" in the USA or the "National Gas and Propane
Installation Code (CAN / CSA B 149.1)" in Canada.
Massachusetts code requires this boiler to be installed in
●
accordance with Massachusetts Plumbing and Fuel Gas
Code 248 CMR Section 2.00 and 5.00.
DANGER
IMPORTANT SAFETY PREAUTIONS
Read and understand this safety information before
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operating or servicing this Navien Boiler.
Confirm the location of the gas shut-off valve. Close the
●
manual shut-off valve if the Navien Boiler ever becomes
subjected to overheating, fire, flood, physical damage or any
other such damaging condition during servicing.
DO NOT turn on the boiler unless water and gas supplies are
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fully opened.
DO NOT turn on the boiler if the cold water supply shut-off
●
valve is closed.
Make certain power to the boiler is "OFF" before removing
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the front cover for any reason.
Label all wires prior to disconnection when servicing
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controls. Wiring errors can cause improper and dangerous
operation. Verify proper operation after servicing.
Improper adjustment, alteration, service or maintenance
●
can cause property damage, personal injury, or death.
To prevent scalding, always check the temperature of the
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hot water after servicing.
DO NOT attempt to change the water temperature while
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someone is using the boiler.
DO NOT use parts other than those specified for this
●
equipment.
DO NOT operate the boiler if you feel something is wrong
●
with the unit.
DO NOT allow children to operate or otherwise handle the
●
unit.
Version 1.0
WARNING
GAS TYPE and AC VOLTAGE
This boiler is configured for Natural Gas from the factory. If
conversion to Propane Gas is required, the conversion kit
supplied with the boiler must be used.
Be sure to use 120 VAC, 60 Hz, minimum 2 A current. Using
●
abnormally high or low AC voltage may cause abnormal
operation, and may reduce the life expectancy of this
product.
If the unit does not match requirements, do not service,
please contact Navien immediately.
WARNING
GAS CONVERSION
The conversion kit shall be installed by a qualified service
agency* in accordance with Navien's instructions and all
applicable codes and requirements of the authority having
jurisdiction. The information in these instructions must be
followed to minimize the risk of fire or explosion or to prevent
property damage, personal injury or death. The qualified
service agency is responsible for the proper installation of
this kit. The installation is not proper and complete until the
operation of the converted appliance is checked as specified in
the manufacturer's instructions supplied with the kit.
* A qualified service agency is any individual, firm, corporation
or company which either in person or through a representative
is engaged in and is responsible for the connection, utilization,
repair or servicing of gas utilization equipment or accessories;
who is experienced in such work, familiar with all precautions
required, and has complied with all of the requirements of the
authority having jurisdiction.
In Canada: The conversion shall be carried out in accordance
with the requirements of the provincial authorities having
jurisdiction and in accordance with the requirements of the
CAN-B149.1 and CAN1-B149.2 Installation Code.
Navien Inc. is not liable for any property damage and/or
personal injury resulting from unauthorized conversions.
California law requires the following Prop 65 warning to be
provided:
WARNING
This product can expose you to chemicals including lead, lead
compounds, and carbon bisulfide which are known to the
State of California to cause cancer and birth defects or other
reproductive harm. For more information, go to
www.P65Warnings.ca.gov.
NFC Service Manual 11