Navien CH-180, Service Manual, Page: 16 / 155

© Navien Ameri c a I n c . 20 1 0 CH series servi c e Manua l Version 1 .0
DANGER
IMPORTANT SAFETY PREAUTIONS
• Read and understand this safety information before operating or servicing this
Navien Boiler
• This manual must remain with the Navien Boiler.
• Confirm the location of the gas shut-off valve. Close the manual shut-off valve
if the Navien Boiler over 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 fully opened.
• DO NOT turn on the boiler if cold water supply shut-off valve is closed.
• Make certain power to boiler is “OFF” before removing the front cover for any
reason.
• Label all wires prior to disconnection when servicing controls. Wiring errors can
cause improper and dangerous operation. Verify proper operation after servic
ing.
• Improper adjustment, alteration, service or maintenance can cause property
damage, personal injury, or death.
• To prevent scalding, always check the temperature of the hot water after servic
ing.
• DO NOT attempt to change the water temperature while 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.
DANGER
INSTALLATION REQUIRMENT
• Installation condition may affect the servicing. Read all related information in the
“Installation manual” and the “User’s Operation Manual”.
• The Navien 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.
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