Navien NCB-180NCB-210 User Manual

Quick Installation Guide
Model
NCB-180/210/240
1
STEP 1 Before Installing
Read the Installation & Operation Manual before installing.
This product must be installed and serviced by a licensed
plumber, a licensed gas fitter, or a professional service
technician. Navien is not liable for any damages or
defects
resulting from improper installation.
Whe
n applicable, the installation must conform with
Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280
and/or CAN/CSA Z240 MH Series, Mobile Homes.
Safety
DO NOT install the boiler in areas with excessively high humidity.
Location Requirements
Select the best location on “Choosing an Installation” in the Installation &
Operation Manual.
Allowable minimum clearances
STEP 2 Installing
Unpacking Checking the Rating Plate
This boiler is configured for Natural Gas
from the factory. If conversion to Propane
Gas in required, the conversion kit supplied
with
the boiler must be used.
Mounting on the Wall Removing the Front Cover
Remove the
4 screws
Lift up the boiler, rest the unit on the
hooks provided on the wall bracket
on the wall.
Secure the mounting bracket
to the wall with the tapping
screws and anchors.
Drill in the supplied anchor
bolts after considering where
the vent term
ination will be
located.
CAUTION
Do not install the boiler on dry walls without proper reinforcement.
WARNING
• Before connecting the gas supply, determine the gas type and
pressure for the boiler by referring to the rating plate. Use only the
same gas type indicated on the rating plate. Using a different gas
type will result in abnormal combustion and malfunction of the
boiler. Gas supplies should be connected by a licensed professional
only.
• The appliance and its gas connection must be leak tested before
placing the appliance in operation.
• This boiler cannot be converted from natural gas to propane or vice
versa without a Navien gas conversion kit. Do not attempt a field
conversion of this boiler without a Navien gas conversion kit. Doing
so will result in dangerous operating conditions and will void the
warranty.
Navien America Inc. is not liable for any property damage and/or
personal injury resulting from improper conversions.
Navien Combination Boiler
User’s Information Manual,
Installation & Operation Manual
Wall mounting bracket
Tapping screws and anchors
Vent terminators
Wall flanges
Conversion Kit
Spare Parts
Pressure Relief Valve (30PSI)
Flow Restrictors
Clearance
Indoor Installation
Top
9 in (229 mm) minimum
Back
0.5 in (13 mm) minimum
Front
4 in (100 mm) minimum
Sides
3 in (76 mm) minimum
Bottom
12 in (300 mm) minimum
Top
Back
Side
Side
Front
Bottom
WARNING
Follow all local codes and/or the most recent edition of the National Fuel Gas Code
(ANSI Z223.1/NFPA 54) in the USA, or the Natural Gas and Propane Installation Code in
Canada (CAN/CGA B149.1).

Navien NCB-180NCB-210 Specifications

General

Brand	Navien
Category	Boiler
Fuel Type	Natural Gas or Propane
Efficiency	95%
Gas Connection Size	3/4" NPT
Model	NCB-180
Max. Heating Input (BTU/hr)	180, 000
Max. DHW Input (BTU/hr)	180, 000
Heating Capacity (BTU/hr)	180, 000
DHW Capacity (BTU/hr)	180, 000
Input (BTU/h)	180, 000
Output (BTU/h)	180, 000
Vent Type	Direct Vent
Vent Size	3"
Voltage	120V

Summary

Before Installing

Location Requirements

Select the best location for installation and note allowable minimum clearances for the boiler.

Safety and Code Compliance

Emphasizes following local codes, installation by licensed professionals, and avoiding high humidity areas.

Installing

Unpacking Boiler Components

Lists the items included in the Navien Combination Boiler package for installation.

Checking the Rating Plate

Guides on verifying gas type and pressure from the rating plate before connecting gas supply.

Mounting the Boiler on the Wall

Step-by-step instructions for securely mounting the boiler unit to the wall.

Removing the Front Cover

Instructions on how to remove the front cover of the boiler unit.

After Installing

Opening All Valves

Instructions for opening gas and water system shut-off valves after installation.

Operating the Boiler

Guides on turning on the boiler, adjusting temperatures, and viewing information.

Measuring Inlet Gas Pressure

Details on how to measure and adjust the boiler's inlet gas pressure.

Installing the Front Cover

Steps for re-installing the front cover after checks or maintenance.

Ensuring Maximum Water Flow

Procedure for cleaning cold water filter and strainer after initial operation.

Final Check

Recommends performing a trial run according to the Installation checklist.

Venting

Vent Termination Options

Illustrates various options for boiler vent termination: horizontal, vertical, concentric, sidewall.

Venting Length Guidelines

Specifies maximum allowable venting lengths for 3" and 2" pipe based on elbows.

Exhaust Vent Piping Materials

Lists recommended and approved materials for exhaust vent piping in USA and Canada.

Electrical Connections

External LWCO Connection

Guidance on connecting an external Low Water Cut-Off device if required by local codes.

Power Connection

Details power requirements and safety precautions for connecting the boiler.

DIP Switch Settings

Configuration options for panel DIP switches, including temperature, altitude, and gas type.