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Need help?Do you have a question about the Lochinvar NOBLE NKB 80-199 and is the answer not in the manual?
Explains DANGER, WARNING, CAUTION, and NOTICE terms for hazard communication.
Read all instructions before installation and perform steps in the given order.
Manual is for qualified technicians; annual servicing by a qualified technician is mandatory.
Covers warnings on electrical shock, handling water-damaged units, and boiler operation.
Detailed explanation of the function of each numbered component of the boiler.
Provides performance ratings based on AHRI and DOE standards.
Details on water, gas, and vent/air connections and sizes.
Lists codes and regulations that must be followed for installation.
Factors like water damage risk, contamination, and required clearances for installation.
Specific requirements for installing in closets or alcoves, including vent material.
Requirements for ventilation openings and guidelines for wall mounting the boiler.
Precautions for garage installation and vent/air piping, including contamination prevention.
Lists contaminants and guidelines for using an existing vent system.
Steps to follow when removing a boiler from a common vent system safely.
Instructions for pallet removal, gas conversions, and initial checks.
Instructions for mounting the boiler bracket to different wall types securely.
Overview of sidewall and vertical termination options for venting and air intake.
Guidelines for installing vent and air piping, including connections and support.
Information on sizing vent and air piping and approved materials.
Procedures for using room air and warnings about combustion air contamination.
Approved PVC/CPVC materials and installation procedures for venting.
Approved polypropylene vent materials, manufacturers, and installation guidelines.
Approved stainless steel vent materials, manufacturers, and installation guidelines.
Guidelines for determining location and installing sidewall vent/air terminations.
Specific factors for choosing the best location for sidewall terminations.
Procedures for wall penetrations and terminating multiple vent/air connections.
Description and usage of the optional concentric vent termination kit for sidewall.
Provides dimensional drawing and specifications for the concentric vent kit.
Guidelines for venting multiple direct vent appliances near each other.
Guidelines for determining location and installing vertical vent/air terminations.
Specific factors for choosing the best location for vertical terminations on a roof.
Procedures for roof penetrations and terminating multiple vent/air connections.
Description and usage of the optional concentric vent termination kit for vertical installations.
Guidelines for venting multiple direct vent appliances vertically near each other.
Installation using an existing unused venting system as a chase for vent and combustion air.
Following existing termination and clearance requirements when using a vent as a chase.
Explains closed loop pressurized system requirements and basic installation steps.
Requirements for low water cutoff devices and using glycol for freeze protection.
Basic steps, important considerations, and identification of near-boiler piping components.
Identifies and describes essential components for piping near the boiler.
Warnings about hot water temperatures, anti-scald valves, and acceptable water chemistry.
Identifies optional and recommended components for domestic water piping.
DHW pressure drop chart and explanation of Combi sequence of operation in DHW mode.
Instructions for connecting the gas supply, including sediment traps and leak checks.
Details on pipe sizing, supply pressure, and regulator requirements for both gas types.
Natural gas pipe sizing chart and procedure for checking inlet gas supply pressure.
Specifies acceptable gas pressures and warnings regarding gas valve replacement and adjustment.
Lists codes for wiring and instructions for line and low voltage connections.
Installation of thermostats, outdoor sensors, system sensors, and auxiliary limit switches.
Using air handler contacts, Combi features, and wiring multiple boilers in cascade.
Instructions for installing the condensate drain, including materials, slope, and neutralization.
Steps for cleaning the system and ensuring proper water quality before operation.
Recommended boiler water chemistry and warnings about freeze protection fluids.
Proper use of glycol, quantity determination, and system filling and air purging.
Procedures for checking gas leaks and verifying thermostat circuits.
Inspecting and cleaning the condensate drain line and trap.
Final checks before startup, and initial troubleshooting steps if the boiler doesn't start.
Verifying gas piping integrity and propane conversion status.
Safety warnings and step-by-step instructions for starting the boiler.
Explanation of the control panel layout, buttons, and screen navigation.
Guide to using the setup wizard for initial configuration and explanation of its parameters.
Adjusting temperature setpoints and using Service Mode for checks.
How the boiler controls space heating and DHW demands based on sensors.
General explanation of boiler operation and accessing set points and installer menus.
How to access the installer menu for advanced configuration and password entry.
Entering the installer password and navigating the main installer menu.
Overview of installer parameters organized into sub-menus like General, Outdoor Reset, etc.
Explanation of control inputs, outputs, and the role of the room thermostat.
Details on DHW priority, anti-cycling, modulation, and performance features like gradient limiting.
How outdoor air reset, load limiting, and Combi special features improve operation.
How to wire boilers in cascade and explanations of protection features like temperature limits and freeze protection.
How space heat temperature is regulated and the function of high limits and low water cutoff.
Step-by-step description of the boiler's operating sequence during a call for heat.
Lists general and annual startup tasks for technicians and routine checks for owners.
Steps to take before maintenance and procedures for checking piping and system integrity.
Checks for water system, electrical connections, ignition components, and control settings.
Performing startup checks and verifying burner flame characteristics.
Inspecting burner, checking flame signal, and reviewing manual with owner.
Safety guidelines for handling ceramic fiber materials during removal or replacement.
Procedures for cleaning the boiler heat exchanger and combi components like the DHW filter.
Maintaining the DHW flow switch and testing the boiler's response to low flow conditions.
Items needed, initial checks, and procedure for checking control module fuses.
How to check boiler sensors by measuring resistance against temperature tables.
Identifies causes and corrective actions for noisy boiler operation and pump issues.
Explains fault messages like MEMORY ERROR, FAN SPEED, LWCO, FLAME SEQUENCE.
Explains fault messages like OUTLET ARHL, AIR PRESSURE SWITCH, AUX LIMIT FAULT.
Explains fault messages like FLAME FAIL: RUNNING and FLAME FAIL: IGNITION.
Explains fault messages related to temperature limits, sensors, and stack temperature.
Explains fault messages related to sensor faults, set point issues, and Delta T.
Explains fault messages for voltage, flue temperature, and sensor faults.
Explains fault messages for hot water issues, DHW temperature, and flow rate.
Explains fault messages related to Combi operation, space heating, and water pressure.
Procedures for combustion analysis and adjusting the gas valve for optimal performance.
Ladder logic diagram illustrating electrical connections for Combi models.
Wiring diagram showing electrical connections for Combi models.
Ladder logic diagram illustrating electrical connections for Boiler models.
Wiring diagram showing electrical connections for Boiler models.
General| Model | NKB 80-199 |
|---|---|
| AFUE | 95% |
| Fuel Type | Natural Gas or Propane |
| Vent Type | Direct Vent |
| Weight | 117 lbs |
| Modulation Ratio | 5:1 |
| Heat Exchanger Material | Stainless Steel |
| Type | Condensing Boiler |
| Water Connection Size | 1 |
| Water Content | 1.5 gallons |
| Input BTU/hr | 80, 000 - 199, 000 |
