Westinghouse WBRCNG140W User Manual

WHL-012 REV. 12.17.14
Gas Fired
Residential
Combi Boiler
Wall Mount Models
INSTALLATION / START-UP
MAINTENANCE / PARTS
WARRANTY
Models
WBRCNG140W
WBRCLP140W
Heat Exchanger Bears the ASME “H” Stamp
NOTICE: Westinghouse reserves the right to make product changes or updates without notice and will not be held liable for
typographical errors in literature.
NOTE TO CONSUMER: PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE.
The surfaces of these products contacted by consumable water contain less than 0.25% lead by weight, as required by the Safe
Drinking Water Act, Section 1417.
IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT, CAUSING
PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS OF LIFE. DO NOT STORE 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 provided by a qualified installer,
service agency, or the gas supplier.

Westinghouse WBRCNG140W Specifications

General

Brand	Westinghouse
Model	WBRCNG140W
Category	Boiler
Fuel Type	Natural Gas
BTU Input	140, 000
Efficiency	95%

Summary

Gas Fired Residential Combi Boiler

INSTALLATION / START-UP

Procedures for installing and starting the appliance.

MAINTENANCE / PARTS

Information on maintenance tasks and available replacement parts.

WHAT TO DO IF YOU SMELL GAS

Instructions on how to respond if you smell gas.

FOR YOUR SAFETY READ BEFORE OPERATING

WHAT TO DO IF YOU SMELL GAS

Procedures to follow in case of a gas leak detection.

OPERATING INSTRUCTIONS

Step-by-step guide for operating the appliance.

TO TURN OFF GAS TO APPLIANCE

Instructions for safely shutting off gas supply to the appliance.

SPECIAL ATTENTION BOXES

A DANGER (Flammable Vapors)

Critical warning about flammable vapors and fire hazards.

A DANGER (HOT BURN)

Warning about severe burn risks from hot water.

FOR THE INSTALLER

INSTALLATIONS MUST COMPLY WITH:

List of codes and standards for appliance installation.

PART 3 - TECHNICAL SPECIFICATIONS

PART 4 - PREPARE APPLIANCE LOCATION

Guidance on preparing the installation site for the appliance.

A. UNCRATING THE APPLIANCE

Instructions for safely unpacking the appliance.

B. BEFORE LOCATING THE APPLIANCE

Considerations before choosing a final installation location.

PART 5 - VENTING

A. INTAKE PIPE AND EXHAUST VENT GUIDELINES

Rules for installing intake and exhaust pipes.

B. APPROVED VENT MATERIALS

List of approved materials for vent pipes.

C. ALLOWED COMBINED VENT LENGTHS

Maximum permissible lengths for combined vent systems.

PART 1 – ITEMS SHIPPED WITH THE APPLIANCE

PART 2 – SAFETY REGULATIONS

A. OPERATION AND INSTALLATION WARNINGS

Critical warnings for safe operation and installation.

A DANGER (Vapors from flammable liquids)

Serious risks associated with flammable liquids near the appliance.

B. IMPROPER COMBUSTION

Hazards and consequences of improper combustion.

WARNING (Do not obstruct the flow of combustion and ventilating air)

E. WATER QUALITY

F. FREEZE PROTECTION

Considerations for protecting the appliance from freezing.

PART 4 - PREPARE APPLIANCE LOCATION

A. UNCRATING THE APPLIANCE

Instructions for safely unpacking the appliance.

WARNING (UNCRATING APPLIANCE)

Critical warning about filing claims for shipping damage.

B. BEFORE LOCATING THE APPLIANCE

WARNING (Incorrect ambient conditions)

Risks of incorrect ambient conditions on operation and safety.

1. Installation Area (Mechanical Room) Operating Conditions

Requirements for the mechanical room environment.

D. CLEARANCES FOR SERVICE ACCESS

WARNING (Space must be provided with combustion/ventilation air openings)

Importance of adequate air openings and appliance cover security.

E. RESIDENTIAL GARAGE, CLOSET, AND ALCOVE INSTALLATIONS

WARNING (For closet or alcove installations)

Warning about using two-pipe venting for closet/alcove installations.

F. EXHAUST VENT AND INTAKE PIPE

Guidelines for installing exhaust and intake piping.

WARNING (Vents must be properly supported)

Warning about vent support and clearance.

H. REMOVING A APPLIANCE FROM A COMMON VENT SYSTEM

DANGER (Do not install the appliance into a common vent)

Danger of installing in a common vent system.

WARNING (Breathing Hazard - Carbon Monoxide Gas)

Critical warning about carbon monoxide hazards.

I. WALL-MOUNTING THE APPLIANCE

WARNING (The appliance must be installed on a wall that can bear its weight)

Warning about wall strength for mounting.

J. FLOW RESTRICTOR

Information about the flow restrictor and its adjustment.

WARNING (If the appliance is already fully installed)

Warning before adjusting flow restrictor.

PART 5 - VENTING

A. INTAKE PIPE AND EXHAUST VENT GUIDELINES

Rules for installing intake and exhaust pipes.

WARNING (Ensure that the intake air will not contain any of the contaminants)

Warning about intake air contamination sources.

B. APPROVED VENT MATERIALS

C. ALLOWED COMBINED VENT LENGTHS

CAUTION (High heat sources)

Caution regarding high heat sources near plastic components.

D. TIGHTENING APPLIANCE COLLAR TO EXHAUST VENT AND INTAKE PIPE

WARNING (Failure to properly install the included 6" length of 3" CPVC pipe)

Warning about improper installation of the CPVC pipe.

E. VENT TERMINATION

1. Two Pipe Roof and Sidewall Vent Terminations

Specifics for roof and sidewall vent terminations.

WARNING (All vent pipes must be glued, properly supported)

Warning about vent pipe installation and support.

2. Direct Vent, Optional Horizontal and Vertical Vent Kits

3. Screen Installation

Installing screens in vent terminations.

PART 6 – INSTALL THE CONDENSATE DRAIN

2. Use corrosion-resistant materials approved by the Authority Having Jurisdiction (AHJ)

Approved materials for condensate drain piping.

3. Local building codes may require an in-line neutralizer

Requirements for condensate neutralizers.

PART 7 – GAS PIPING

WARNING (FIRE AND/OR EXPLOSION HAZARD)

Hazard warning for gas piping installation.

2. Natural Gas Pipe Sizing

Sizing natural gas pipes.

3. LP (Liquid Propane) Gas Pipe Sizing

B. GAS CONNECTION REQUIREMENTS

Requirements for connecting the gas supply.

PART 8 – WATER PIPING

A. GENERAL PLUMBING CONNECTION GUIDELINES

General rules for water piping connections.

C. CENTRAL HEATING PIPING SYSTEM WATER PIPING METHODS

EXPANSION TANK AND MAKE-UP WATER

Requirements for expansion tanks and make-up water.

WARNING (Expansion tanks must be sized)

Warning about proper sizing of expansion tanks.

NOTES: (System Piping Concept)

NOTES: (System Piping Concept)

NOTES: (System Piping Concept)

D. CH AND DHW PRESSURE RELIEF VALVES

WARNING (To avoid water damage or scalding due to relief valve operation)

Warnings about relief valve operation and discharge.

FAILURE TO COMPLY WITH THE ABOVE GUIDELINES

Critical warning about consequences of non-compliance.

A. GENERAL OPERATING CONDITIONS

B. WIRING INFORMATION

Details about the appliance's electrical wiring.

WARNING (This appliance is equipped with a three prong plug)

Warning about using the grounded plug.

SYSTEM CONTROL SETTINGS

PART 10 – OPERATING SYSTEM INSTRUCTIONS

A. CONTROL PANEL

Description of the appliance's control panel buttons and functions.

B. LCD DISPLAY DESCRIPTIONS

Explanation of icons and readouts on the LCD display.

C. START-UP SEQUENCE

The process the appliance follows during initial startup.

D. CHANGING THE DHW SET-POINT

DANGER (Hotter water increases the risk of scald injury)

Critical danger warning about hot water scalds.

E. CHANGING THE TEMPERATURE INDICATOR

How to switch temperature units between C and F.

F. CHANGING THE CH SET-POINT

How to adjust the central heating temperature setting.

G. STORAGE MODE

H. STATUS DISPLAY MODE

How to access and view status information.

I. INSTALLER MODE

J. ERROR MODE

K. ERROR TREE ANALYSIS

1. FLAME DETECTION

Troubleshooting flowchart for flame detection errors.

2. GAS DETECTION

Troubleshooting flowchart for gas detection errors.

3. APS / BURNER OVERHEAT LIMIT / CONDENSATE BLOCK SWITCH

4. DHW / OP / CH OVERHEAT / EXHAUST OVERHEAT SENSORS

Error analysis for sensor related overheat conditions.

L. OUTDOOR TEMPERATURE MODE (OPTIONAL)

Using an outdoor sensor for temperature-dependent operation.

M. 0-10 VOLT INPUT

PART 11 – START-UP PREPARATION

A. CHECK / CONTROL WATER CHEMISTRY

Ensuring proper water chemistry for system reliability.

B. CHECK FOR GAS LEAKS

Critical warning about checking for gas leaks.

C. FILL AND TEST WATER SYSTEM

WARNING (Ensure the appliance is full of water before firing the burner)

Warning about ensuring the appliance is full of water.

WARNING (Eliminate all system leaks)

Warning about system leaks and their consequences.

D. PURGE AIR FROM CH AND INTERNAL STORAGE TANK

E. PURGE AIR FROM DHW SYSTEM

Procedure for purging air from the domestic hot water system.

F. CHECK THERMOSTAT CIRCUIT(S)

Verifying the thermostat circuit connections.

G. CONDENSATE REMOVAL

H. FINAL CHECKS BEFORE STARTING APPLIANCE

Final checks before powering on the appliance.

I. ADJUSTING GAS PRESSURE AT THE APPLIANCE

Procedure for adjusting gas pressure.

J. SETTING AND VERIFYING THE COMBUSTION SETTING

WARNING (It is required to use a combustion analyzer)

Warning about using a combustion analyzer for adjustments.

PART 12 – INSTALLATION AND START-UP CHECKLIST

PART 13 – TROUBLESHOOTING

PART 14 – ANNUAL MAINTENANCE PROCEDURES

DANGER (The appliance must be inspected and serviced annually)

Critical warning about annual servicing.

DANGER (To prevent the potential of substantial property damage)

Warning about removing materials around the appliance.

Check Exhaust Vent and Intake Pipe Terminations

Check CH and DHW Pressure Gauges

Checking pressure gauges for CH and DHW loops.

WARNING (Failure to inspect the venting system)

Warning about vent system inspection and repair.

Operate Pressure Relief Valve

Flushing the CH Closed Loop Heat Exchanger

Procedure for flushing the CH heat exchanger.

Flushing the DHW Loop Heat Exchanger

Maintaining the Condensate System

DANGER (The condensate trap assembly MUST BE PROPERLY INSTALLED)

Danger of improper condensate trap installation.

WARNING (When servicing is complete)

Warning about replacing condensate collector cap.

WARNING (Do not install the condensate assembly if a component is lost or missing)

REPLACEMENT PARTS

Limited Warranty for Combination Appliances

OWNER RESPONSIBILITIES

Owner's duties to maintain warranty coverage.

WARRANTY EXCLUSIONS

Conditions that void the warranty.

PROCEDURES FOR WARRANTY SERVICE REQUESTS

LIMITATIONS OF YOUR WESTINGHOUSE WARRANTY AND REMEDIES

Limitations on warranty claims and remedies.

START-UP REPORT

MAINTENANCE REPORT

INSPECTION ACTIVITIES

List of inspection points for maintenance.

ADDITIONAL INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS

1. INSTALLATION OF CARBON MONOXIDE DETECTORS.

Requirements for installing carbon monoxide detectors.

3. SIGNAGE.

MAINTENANCE NOTES

CUSTOMER INSTALLATION RECORD FORM

IMPORTANT NOTES:

Important notes for the customer regarding installation review.