Navien NCB-150E Installation & Operation Manual
WARNING
If the information in these instructions is not followed exactly, a fire or explosion may result, causing
property damage, personal injury or death.
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
What to do if you smell gas
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in your building.
Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency or the gas supplier.
The installation must conform with local codes or, in the absence of local codes, the National Fuel Gas Code,
ANSIZ223.1/NFPA 54 and/or CSA B149.1, Natural Gas and Propane Installation Code.
H
NSF/ANSI 372
Keep this manual near this boiler for future reference whenever
maintenance or service is required.
* The wetted surface of this product contacted by consumable water contains less than
one quarter of one percent (0.25%) of lead by weight.
Installation & Operation Manual
NCB-E Condensing Combi-Boilers
Model
NCB-150E
NCB-180E
NCB-210E
NCB-240E