EasyManua.ls Logo

Navien NCB-190/080H User Manual

Navien NCB-190/080H
145 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
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 suppliers 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, ANSI Z223.1/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-H Condensing Combi-Boilers
Model
NCB-190/060H
NCB-190/080H
NCB-240/110H
NCB-240/130H
NCB-250/150H

Table of Contents

Other manuals for Navien NCB-190/080H

Questions and Answers:

Navien NCB-190/080H Specifications

General IconGeneral
CategoryBoiler
TypeCombi Boiler
BrandNavien
ModelNCB-190/080H
Fuel TypeNatural Gas/Propane
Efficiency95% AFUE
Water Connection Size3/4" NPT
Vent Size2 inches
Warranty15 years heat exchanger, 5 years parts
Gas Connection Size3/4" NPT

Summary

2. Installing the Boiler

2.1 Choosing an Installation Location

Details factors for selecting a suitable installation site, including clearances and utility access.

Adequate Venting and Ventilation

Guidelines for ensuring proper airflow and exhaust for boiler operation.

Adequate Installation Clearances

Specifies required distances around the boiler for service and safety.

2.2 Mounting the Boiler to the Wall

Step-by-step instructions for securely attaching the boiler to a wall stud.

3. Installing the System Piping

3.1 Installing a Space Heating System

Instructions for connecting the boiler to a hydronic space heating system.

3.1.2 Essential Elements in a Space Heating System

Covers critical components like LWCO, system pressure, and oxygen elimination.

3.2 Installing a Domestic Hot Water (DHW) System

Details on connecting the boiler for on-demand domestic hot water.

3.3 Connecting the Condensate Drain

Procedures for safely routing and disposing of acidic boiler condensate.

3.5 Testing the Water System

Procedures for performing a fill test to ensure system integrity and water quality.

3.7 Examples of Electrical Connections

Illustrates various wiring configurations for boiler controls and accessories.

5. Venting for Combustion Air

5.1 Venting the Boiler

Covers essential guidelines for safe and proper boiler venting and air supply.

6. Setting the DIP Switches

6.1 DIP Switch 1 (6 switch unit)

Configuration settings for boiler operation status using DIP Switch 1.

6.2 Dip Switch 2 (8 switch unit)

Configuration settings for gas type, altitude, and country using DIP Switch 2.

7. Connecting the Power Supply

10. Installation Checklist

Installing the boiler

Checklist items for verifying proper boiler installation and clearances.

Connecting the Gas Supply

Checklist items for ensuring correct and safe gas supply connection.

Connecting the Domestic Water Supply

Checklist items for verifying domestic water supply setup and filter cleaning.

Connecting the Space Heating Piping

Checklist items for space heating system piping, including fill and air removal.

Connecting a Pressure Relief Valve

Checklist items for verifying correct installation of the pressure relief valve.

Connecting the Condensate Drain

Checklist items for ensuring proper installation of the condensate drain line.

Venting the boiler

Checklist items for verifying correct boiler venting and termination.

Connecting the Power Supply

Checklist items for ensuring correct and safe electrical power connection.

PCB DIP switch setting (DIP SW 2, set of 8)

Checklist items for verifying correct DIP switch configuration.

Operating the boiler

Checklist items for ensuring the boiler is ready for operation and owner handover.

11. Operating the Boiler

11.1 Operating the Boiler for the First Time

Step-by-step guide for initial boiler startup and safety checks.

11.2 Turning the Boiler On or Off

Instructions on how to power the boiler unit on and off using the control panel.

11.3 Start-Up Wizard

Guide to completing the initial setup process for the boiler after installation.

11.4 Adjusting the Temperature

Procedures for setting both space heating and domestic hot water temperatures.

11.6.3 Setting the Operation Parameters

Adjusting critical boiler parameters for optimal performance and safety.

11.6.7 Setting the Special Operation Modes

Configuring specific operating modes like normal, stage, or DHW modes.

11.7 Understanding Error Codes

Explains error codes and provides troubleshooting guidance for boiler issues.

Getting Service

Related product manuals