Westinghouse WBRC 140W Series Installation Manual
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Westinghouse WBRC 140W Series Installation Manual

Gas fired residential combi boiler
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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.
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.
WHAT TO DO IF YOU SMELL GAS
Gas Fired
Residential
Combi Boiler
Wall Mount Models
INSTALLATION / START-UP
MAINTENANCE / PARTS
**"NG" Refers to Natural Gas Operation
"LP" Refers to Propane Gas Operation
Heat Exchanger Bears the ASME "H" Stamp
WARRANTY
Models
WBRC**140W
WBRC**199W
WHL-012 REV. 4.8.16

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Summary of Contents for Westinghouse WBRC 140W Series

  • Page 1 “LP” Refers to Propane Gas Operation 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.
  • Page 2 WHL-012 REV. 4.8.16...
  • Page 3 The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels, or to important product information. DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

  • Page 4: Table Of Contents

    In some circumstances, the property owner or his/her agent assumes the role, and at government installations, the commanding officer or departmental official may be the AHJ. NOTE: Westinghouse reserves the right to modify product technical specifications and components without prior notice. FOR THE INSTALLER This manual must only be used by a qualified heating installer/service technician.
  • Page 5 D. WHEN SERVICING THE APPLIANCE ............................. 10 E. WATER QUALITY ..................................10 F. FREEZE PROTECTION ................................10 G. SCALDING ....................................10 H. HIGH ELEVATION INSTALLATIONS............................11 PART 3 – TECHNICAL SPECIFICATIONS ..........................12 PART 4 – PREPARE APPLIANCE LOCATION ........................15 A.
  • Page 6 B. WIRING INFORMATION ................................43 C. DIP SWITCHES ..................................43 PART 10 – OPERATING SYSTEM INSTRUCTIONS ........................ 51 A. CONTROL PANEL ................................... 51 B. LCD DISPLAY DESCRIPTIONS .............................. 52 C. START-UP SEQUENCE ................................52 D. CHANGING THE DHW SET-POINT ............................53 E.

  • Page 7: Part 1 - Items Shipped With The Appliance

    PART 1 – ITEMS SHIPPED WITH THE APPLIANCE ITEM DESCRIPTION QUANTITY Elite Fire Tube Combi Appliance 140W / 199W Installation and User’s Information Manuals, H2 1 Each Document Condensate Hose (7855P-089) CH Pressure Relief Valve With ¾” X 1” Bushing 1 Each.

  • Page 8: Part 2 - Safety Regulations

    Westinghouse cannot anticipate every circumstance that might involve a potential hazard. Each installation has its own specialized characteristics, requirements, and possible hazards. Therefore, all possible incidents are not included in these warnings. Proper and safe installation, operation, and service are the responsibility of the professional service technician.
  • Page 9 Due to the low water content of the appliance, improper sizing of the appliance with regard to heating system load will result in excessive cycling and accelerated component failure. Westinghouse DOES NOT warrant failures caused by improperly sized appliance applications. DO NOT oversize the appliance to the system. Modular appliance installations greatly reduce the likelihood of appliance oversizing.

  • Page 10: Improper Combustion

    F. FREEZE PROTECTION Consider appliance piping and installation when determining appliance location. NOTE: Damages resulting from incorrect installation or from use of products not approved by Westinghouse ARE NOT covered by warranty. G. SCALDING APPROXIMATE TIME / TEMPERATURE RELATIONSHIPS IN SCALDS More than 5 minutes 1 ½...

  • Page 11: High Elevation Installations

    Table 4 details the relationship of water temperature and time with regard to scald injury and may be used as a guide in determining the safest water temperature for your applications. H. HIGH ELEVATION INSTALLATIONS Natural gas at high elevation might contain less heating value than typical 1,000 BTU/cu ft and therefore can cause improper air / gas mix leading to improper combustion.

  • Page 12: Part 3 - Technical Specifications

    PART 3 – TECHNICAL SPECIFICATIONS MODEL 140W 199W Installation Indoor, Wall Mount, Fully Condensing Central Heating Minimum / 19,900 / 140,000* (CH) Maximum Input 28,000 / 140,000 Domestic Hot (Btu/Hr) 19,900 / 199,000* Water (DHW) AFUE 9.9 GPM F Rise 7.1 Gal Hot Water 7.7 GPM...
  • Page 13 Figure 1 – 140W Specifications and Dimensions DESCRIPTION DIAMETER (ALL NPTM) Automatic Air Vent 3” Intake Pipe Connection 3” Exhaust Vent Connection ¾” NPT Relief Valve Adapter 1” NPT CH Supply Adapter 1” NPT CH Return Adapter ¾” NPT DHW Outlet Adapter ¾”...
  • Page 14 Figure 2 - 199W Specifications and Dimensions DESCRIPTION DIAMETER (ALL NPTM) Automatic Air Vent 3” Intake Pipe Connection 3” Exhaust Vent Connection ¾” NPT Relief Valve Adapter 1” NPT CH Supply Adapter 1” NPT CH Return Adapter ¾” NPT DHW Outlet Adapter ¾”...

  • Page 15: Part 4 - Prepare Appliance Location

    Figure 3 – 140W / 199W Components NUMBER COMPONENT DESCRIPTION NUMBER COMPONENT DESCRIPTION Air Vent Condensate Trap Air Intake Adapter Condensate Air Pressure Switch Air / Gas Mixing Pipe Mixing Valve Gas Valve Terminal Block Internal Storage Tank Control Panel Main PCB Heat Exchanger Manual ON/OFF Power Switch...

  • Page 16: Before Locating The Appliance

    The appliance should be located near a floor drain, or installed in an adequately drained drain pan. Westinghouse WILL NOT be held liable for leakage damages. To conserve water and energy, insulate all water piping, especially the hot and recirculation water lines.

  • Page 17: Leveling

     Location that could cause the system and appliance to freeze and leak.  Incorrectly-sized expansion tank Do not connect the appliance to any heating systems or components that have been previously used for non-potable applications. Do not introduce toxic chemicals, such as antifreeze or appliance treatments, into the appliance or any piping meant for potable water purposes.

  • Page 18: Residential Garage And Closet Installations

    E. RESIDENTIAL GARAGE AND CLOSET INSTALLATIONS Check with your local Authority Having Jurisdiction for requirements when installing boiler in a garage or closet. Please read the entire manual before attempting installation. Failure to properly take factors such as venting, piping, condensate removal, and wiring into account before installation could result in wasted time, money, and possible property damage and personal injury.

  • Page 19: Removing A Appliance From A Common Vent System

    NOTE: DAMAGE TO THE APPLIANCE CAUSED BY EXPOSURE TO CORROSIVE VAPORS IS NOT COVERED BY WARRANTY. (Refer to the limited warranty for complete terms and conditions). H. REMOVING A APPLIANCE FROM A COMMON VENT SYSTEM Do not install the appliance into a common vent with any other appliance. This will cause flue gas spillage or appliance malfunction, resulting in possible substantial property damage, severe personal injury, or death.

  • Page 20: Flow Restrictor

    POSITIONING THE APPLIANCE ON THE WALL Attach the wall bracket on the location where you want to install the appliance. Ensure it is level and on stud (16” centers) before proceeding. Mark the four drill holes with a pencil or marker. Remove the wall bracket. Drill four (4) holes using a 5/32 drill bit at the marked hole locations.
  • Page 21 Figure 8 – Water Pressure vs. Flow Through the Restrictors – 140W Models WHL-012 REV. 4.8.16...
  • Page 22 199W Pressure (PSI) No Restrictor White Restrictor (factory) Figure 9 – Water Pressure vs. Flow Through the Restrictors – 199W Models WHL-012 REV. 4.8.16...

  • Page 23: Part 5 - Venting

    PART 5 – VENTING Vent this appliance in accordance with these instructions. Failure to do so will result in property damage, severe personal injury, or death. DO NOT mix vent systems or materials unless specifically told to do so in this manual. DO NOT thermally insulate the exhaust vent or intake pipes.

  • Page 24: Approved Vent Materials

    Figure 10 – Vent Termination Detail DESCRIPTION CANADA Clearance above grade, veranda, porch, deck, or balcony 1 foot 1 foot Clearance to window or door that may be opened 1 foot 3 feet Clearance to permanently closed window Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet from the center line of the terminal Clearance to unventilated soffit...

  • Page 25: Allowed Combined Vent Lengths

    When installing AL29-4C vent piping, install a PVC-to-stainless adapter at the appliance vent connection, and at the termination when using an Westinghouse PVC termination kit. DO NOT mix AL-29-4C piping from different manufacturers unless using adapters specifically designed for the purpose by the manufacturer.

  • Page 26: Tightening Appliance Collar To Exhaust Vent And Intake Pipe

    D. TIGHTENING APPLIANCE COLLAR TO EXHAUST VENT AND INTAKE PIPE NOTE: The included 6” length of 3” CPVC pipe MUST BE INSTALLED in the exhaust vent connection BEFORE venting the appliance. Failure to properly install the included 6” length of 3” CPVC pipe BEFORE venting the appliance could result in product damage, severe personal injury, or death.

  • Page 27: Vent Termination

    E. VENT TERMINATION 1. Direct Vent, Two Pipe Roof and Sidewall Vent Terminations Figure 13 – Direct Vent, Roof and Sidewall Vent Terminations All vent pipes must be glued, properly supported, and the exhaust must be pitched a minimum of ¼” per foot back to the appliance to allow drainage of condensate.

  • Page 28: Direct Vent, Optional Horizontal And Vertical Vent Kits

    2. Direct Vent, Optional Horizontal and Vertical Vent Kits Figure 14 – Direct Vent, Vent Terminations (With Optional Kits) All vent pipes must be glued, properly supported, and the exhaust must be pitched a minimum of ¼” per foot back to the appliance to allow drainage of condensate.

  • Page 29: Power Vent, Indoor Combustion Air Installation In Confined Or Unconfined Space

    4. Power Vent, Indoor Combustion Air Installation in Confined or Unconfined Space This heater requires fresh, uncontaminated air for safe operation and must be installed in a mechanical room where there is adequate combustion and ventilating air. NOTE: To prevent combustion air contamination, see Table 8.
  • Page 30 Figure 17 – NOTE: These drawings are meant to demonstrate system venting only. The installer is responsible for all equipment and detailing required by local codes. WHL-012 REV. 4.8.16...

  • Page 31: Part 6 - Install The Condensate Drain

    PART 6 – INSTALL THE CONDENSATE DRAIN 1. Due to its efficient design, the appliance produces condensate (water) as a normal by-product. This condensate is acidic, with a pH level between 3 and 4. This condensate must be drained away from the appliance and disposed in accordance with all local regulations.

  • Page 32: Part 7 - Gas Piping

    If using a condensate pump, select one approved for use with condensing boilers and furnaces. The pump should have an overflow switch to prevent property damage from condensate spillage. It is very important that the condensate piping be no smaller than ¾”. To prevent sagging and maintain pitch, condensate piping should be supported with pipe supports, and pitched ¼”...

  • Page 33: Lp (Liquid Propane) Gas Pipe Sizing

    3. LP (Liquid Propane) Gas Pipe Sizing The following is intended for use for piping between a Single or Second Stage (Low Pressure) Regulator and the appliance. The following tables list maximum capacity of pipe in cubic feet of gas per hour for an inlet pressure of 11 inches water column and specific pressure drop of 0.5 inches water column based on 1.5 specific gravity for liquid propane.
  • Page 34 Figure 20 – Gas Line with Shut-Off Valve Detail Figure 21 – Natural Gas Piping Installation – NOTE: Capacity to be Not Less than Total Capacity of Connected Appliances Figure 22 – LP Gas Piping Installation – NOTE: Capacity to be Not Less than Total Capacity of Connected Appliances WHL-012 REV.

  • Page 35: Part 8 - Water Piping

    PART 8 – WATER PIPING A. GENERAL PLUMBING CONNECTION GUIDELINES  Pipe material must be suitable to meet local codes and industry standards.  The pipe must be cleaned and without blemish before any connections are made.  Do not apply a torch within 12” of the appliance. Doing so could damage the appliance. Such damages ARE NOT covered by product warranty.
  • Page 36 Figure 24 – Piping Legend WHL-012 REV. 4.8.16...

  • Page 37: Dhw Piping

    Use both thread tape and pipe dope to connect to the ¾” domestic water inlet and outlet. A shut off valve between the city water supply and DHW inlet is recommended for ease of service. Westinghouse offers threaded ¾” DHW tankless isolation valves with DHW pressure relief valve for ease of installation and future service.
  • Page 38 Figure 25 – CH and DHW Piping - NOTES: 1. This drawing is meant to show system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. All closely spaced tees shall be within 4 pipe diameters center to center spacing. 3.
  • Page 39 Figure 26 – CH Piping – Zoning with Pumps NOTES: 1. This drawing is meant to show system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. All closely spaced tees shall be within 4 pipe diameters center to center spacing. 3.
  • Page 40 Figure 27 – DHW Priority with Outdoor Reset and Recirculation NOTES: 1. This drawing is meant to show system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. All closely spaced tees shall be within 4 pipe diameters center to center spacing. 3.
  • Page 41 Figure 28 – DHW Priority with Outdoor Reset, Boiler Primary Pump, and Recirculation NOTES: 1. This drawing is meant to show system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. All closely spaced tees shall be within 4 pipe diameters center to center spacing. 3.

  • Page 42: And Dhw Pressure Relief Valves

    The included 30 psi CH Pressure Relief Valve must be installed on the CH supply line to ensure a compliant installation and safe operation. Westinghouse has supplied a ¾” X 1” bushing to aid installation of the CH Pressure Relief Valve. The valve is meant to be field installed.

  • Page 43: General Operating Conditions

    ELECTRICAL SHOCK HAZARD – To ensure safety, turn off electrical power supply at service entrance panel before making any electrical connections to avoid possible electric shock hazard. Failure to do so could result in property damage, serious personal injury, or death. A.
  • Page 44 Figure 31 – Dip Switch Detail DIP SWITCH GROUP DIP SWITCH 1 – 3 DO NOT MOVE DO NOT MOVE 2” Vent Size 3” Gas Type High Fire Normal Operation High Fire Low Fire Normal Operation Low Fire Table 17 – DIP Switch Group SYSTEM CONTROL SETTINGS MAXIMUM FLAME DETECTING VOLTAGE 2.5V...
  • Page 45 Figure 32 – Electrical Wiring Diagram for 140W Models WHL-012 REV. 4.8.16...
  • Page 46 Figure 33 – Electrical Wiring Diagram for 199W Models WHL-012 REV. 4.8.16...
  • Page 47 Figure 34 – Ladder Diagram – 140W Models WHL-012 REV. 4.8.16...
  • Page 48 Figure 35 – Ladder Diagram – 199W Models WHL-012 REV. 4.8.16...
  • Page 49 CONNECTOR DESCRIPTION HT SELV NO. OF LOCATION BOARD SILK GROUND Power Supply Line NOT USED for 140W Models External Pump for 199W Models Ignitor L(HT) CH Pump 65001WS-12 HT (120V~) AC Gas Valve Power Supply Neutral 9-12 AC Power COM Line CP2/3WAY 3 Way Valve LW6A4-03...
  • Page 50 CONNECTOR DESCRIPTION HT SELV NO. OF LOCATION BOARD SILK Flame Detect Sensor OP.S Operating Water Temperature Sensor DH.S DHW Temperature Sensor NOT USED SELV (5V) LWD1140-14 BG.S Exhaust Temperature Sensor ST.S NOT USED SP.S Over-Heat Temperature Sensor DHM Stepper Motor Position DHM Stepper Motor Coil X Phase CN14 DHM Stepper Motor Coil Y Phase...

  • Page 51: Part 10 - Operating System Instructions

    Figure 37 – 199W Terminal Block Wiring Detail PART 10 – OPERATING SYSTEM INSTRUCTIONS A. CONTROL PANEL Figure 38 – Appliance Control Panel Detail WHL-012 REV. 4.8.16...

  • Page 52: Lcd Display Descriptions

    B. LCD DISPLAY DESCRIPTIONS Figure 39 – LCD Display Detail LCD also features a backlit lamp that will illuminate:  When a user action is detected (a button is pressed)  The display has timed out for approximately 2 minutes C.

  • Page 53: Changing The Dhw Set-Point

     Outdoor Temperature Mode  Installer Mode D. CHANGING THE DHW SET-POINT The display shows the icon when the DHW set-point can be changed. Figure 41 – DHW Set-Point Screens Press the button when the display panel is powered ON to change the DHW Set-Point. The DHW icon and current set-point will display and flash.

  • Page 54: Storage Mode

    Figure 42 – CH Set-Point Screen C). CH Set-Point range is 86 – 180 F (30 – 82 Factory CH Set-Point is 180 F (82 Turn the dial counterclockwise to lower and clockwise to raise the current CH set-point. After changing the temperature, press the button to save the setting.

  • Page 55: Installer Mode

    Turn the dial counterclockwise and clockwise to scroll through the displayed parameters. To view parameter details, press the button at the appropriate screen. Press the buttons to leave the parameter. Press the button again to return to Operation Mode. To turn on Lock Mode, press the button at the d:Lc parameter.
  • Page 56 Display Default Detail Description 1: EH E0:00 Error history up to 10 Check last 10 error codes (E0 - E9) Select “ON” to delete error code history 2: cE Delete Error history Range: ON or OFF Select “ON” to reset to factory setting (Burner operation time, Ignition cycles, and Supply power time will not be 3: In Initialized system...

  • Page 57: Error Mode

    Internal DHW Storage Tank Sets the Internal DHW Storage Tank Setpoint 24: SF 158 F Setpoint Range:140 ~ 167 Internal DHW Storage Tank Sets the Internal DHW Storage Tank Differential 25: So 27 F Differential Range: 9 ~ 36 Delay time when switching from Range: 0 –...
  • Page 58 Press the Power button to clear the Error Code. 1. Check Condensate and main controller connections. Ensure all are secure. Condensate APS – 2. Check Condensate sensor resistance. If resistance is not zero, replace the switch. Closed is Normal, Open is Er:20 3.
  • Page 59 This Error Code will go away when the condition is remedied. If Error happens again: 1. Check the connections to the fan. Ensure all are secure. Fan Speed Feedback 2. If the fan does not rotate during the ignition sequence, check for AC8V~26.5V power at the fan Er:61 Signal Abnormal connection.

  • Page 60: Error Tree Analysis

    K. ERROR TREE ANALYSIS 1. FLAME DETECTION Figure 47 – Flame Detection Error Analysis Tree 2. GAS DETECTION Figure 48 – Gas Detection Error Analysis Tree WHL-012 REV. 4.8.16...

  • Page 61: Aps / Burner Overheat Limit / Condensate Block Switch

    3. APS / BURNER OVERHEAT LIMIT / CONDENSATE BLOCK SWITCH Figure 49 – APS / Burner Overheat Limit / Condensate Block Switch Error Analysis Tree 4. DHW / OP / CH OVERHEAT / EXHAUST OVERHEAT SENSORS Figure 50 – DHW / OP / CH Overheat / Exhaust Overheat Sensors Error Analysis Tree L.

  • Page 62: 0-10 Volt Input

    Figure 51 – Outdoor Reset Curve – See Installer Mode for Curve Setting Descriptions M. 0-10 VOLT INPUT 1. A signal from a building management system may be connected to the boiler to enable remote control. This signal should be a 0-10 volt positive-going DC signal.

  • Page 63: Part 11 - Start-Up Preparation

    PART 11 – START-UP PREPARATION Thoroughly clean and flush any system that has used glycol before installing the appliance. A. CHECK / CONTROL WATER CHEMISTRY Chemical imbalance of your water can cause severe damage to your appliance and associated equipment, and may also affect efficiency.

  • Page 64: Check For Gas Leaks

     A 30% mixture of glycol will result in a BTU output loss of 15% with a 5% increase in head against the system circulator.  A 50% mixture of glycol will result in a BTU output loss of 30% with a 50% increase in head against the system circulator. ...

  • Page 65: Purge Air From Ch And Internal Storage Tank

    b. Pressure will rise when appliance is turned on and system water temperature increases. Operating pressure of the CH system should never exceed 25 psi, and must never exceed the relief valve pressure setting. 4. At initial fill and during appliance startup and testing, check system thoroughly for leaks. Repair all leaks before proceeding further. Eliminate all system leaks.

  • Page 66: Check Thermostat Circuit(S)

    A condensate neutralizer, if required by local authorities, may be purchased from Westinghouse (7450P-212). 2. The appliance is provided with a ½” X ¾” reducing coupling that must be installed on the appliance before the condensate is piped to a local drain.

  • Page 67: Setting And Verifying The Combustion Setting

    2. The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than ½ psi (3.5 kPa). NOTICE Do not fire (operate) the appliance until all connections have been completed and the heat exchanger is filled with water.
  • Page 68 4. When complete, flip DIP switch six (6) to its original (OFF) position. This will return the appliance to normal mode. 5. Allow appliance to operate normally. Ensure it is operating properly. 6. Reinstall the appliance front cover. 7. Use a Phillips Head screwdriver to reinstall the appliance top cover. *In order to increase CO values on high fire, the gas orifice size can be increased to achieve the maximum CO value listed in Table...

  • Page 69: Part 12 -Installation And Start-Up Checklist

    PART 12 –INSTALLATION AND START-UP CHECKLIST LIGHT OFF ACTIVITIES DATE COMPLETED Has the system been cleaned and flushed? Does water chemistry meet requirements? 1) Fill the If water chemistry does not meet requirements, are treatment measures put in place? Heating System Check all water piping and connections.
  • Page 70 Figure 54 – Flame Sight Glass CH Return Temperature Sensor (7855P-097) CH Supply Temperature Sensor Exhaust Temperature Sensor (7855P-030) Outdoor Temperature Sensor (7855P-092) DHW Temperature Sensor (7855P-084) Storage Tank Temperature Sensor (7855P-094) (7855P-057) Outside Outside Outside Resistance (Ω) Resistance (Ω) Resistance (Ω) Temperature (◦F) Temperature (◦F)

  • Page 71: Part 13 - Troubleshooting

    PART 13 – TROUBLESHOOTING TROUBLESHOOTING CHART PROBLEM POSSIBLE CAUSES POSSIBLE REMEDIES 1. Is the plug on the power supply cord unplugged from 1. Reset the plug. the electrical outlet? 2. Reset the circuit breaker. No electrical power 2. Is electrical panel’s 10 Amp circuit breaker tripped? 3.

  • Page 72: Part 14 - Annual Maintenance Procedures

    Ensure service switch and/or circuit Turn on service switch or circuit breaker to breaker to appliance is turned ON power appliance Troubleshoot and correct the power supply to Is there 120V at the service switch the manual switch Nothing appears on Is the ON/OFF switch inside the Turn ON the manual power switch inside the the display control...
  • Page 73 Check the Status of the Control Panel Observe the Control Panel to ensure the appliance is powered on, and to check for any error codes. Clear any debris from the panel. Check Exhaust Vent and Intake Pipe Terminations Verify that the appliance exhaust vent and intake pipe terminations are clean and free of obstructions. Remove any debris from the exhaust vent or intake pipe openings.
  • Page 74 To avoid water damage or scalding due to relief valve operation, a discharge line must be connected to the valve outlet and directed to a safe place of disposal. This discharge line must be installed by a qualified service technician or heating/plumbing installer in accordance with the appliance installation manual.
  • Page 75 10. Repeat process on the DHW loop of the appliance. Flushing the DHW Loop Heat Exchanger Flushing the heat exchanger is a complicated procedure that should only be performed by a qualified service technician. It is recommended to flush the heat exchanger annually if water hardness exceeds 12 grains per gallon (considered extremely hard water). If water hardness falls below 12 grains per gallon it is recommended to flush the heat exchanger every two to three years.
  • Page 76 5. Remove the DHW inlet filter. Then clean it with a toothbrush and clean running water. See Figure 59. Figure 59 – Cleaning the Inlet Filter 6. Reinstall the DHW inlet filter. 7. Purge air from the DHW lines by opening a hot water faucet in the system.

  • Page 77: Replacement Parts

    Do not install the condensate assembly if a component is lost or missing. Replace the entire assembly. Failure to follow this warning could result in property damage, serious personal injury, or death. 6. Fill the condensate trap with fresh water prior to reassembly on the appliance. 7.
  • Page 78 Figure 61 – Cabinet Replacement Parts – 140W Models PART PART NUMBER DESCRIPTION NUMBER DESCRIPTION NUMBER NUMBER Exhaust Duct (Assembly) 7855P-002 Ignition Transformer 7855P-007 Exhaust/Intake Duct Clamps (Φ100) 15-1 7855P-332 Control Panel Bracket 7855P-219 15-2 Exhaust/Intake Gaskets 7850P-210 Power Switch Bracket 7855P-220 15-3 Exhaust Duct...
  • Page 79 Figure 62 – Water Piping Replacement Parts – 140W Models PART PART NUMBER DESCRIPTION NUMBER DESCRIPTION NUMBER NUMBER DHW Outlet Pipe 7855P-242 DHW Inlet Block Cap 7855P-283 36-1 1/2" Pipe Gasket 7855P-072 DHW Inlet Adapter 7855P-203 36-2 O-ring 7855P-044 DHW Inlet Block Cap 7855P-283 36-3 Clip (DHW Inlet)
  • Page 80 Figure 63 – Heat Exchanger Replacement Parts – 140W Models PART PART NUMBER DESCRIPTION NUMBER DESCRIPTION NUMBER NUMBER Exhaust Pipe 7855P-237 Exhaust pipe Gasket 7855P-351 Storage Tank Clamp 7855P-297 Storage Tank Bracket 7855P-298 Exhaust Temperature Sensor Clip 7855P-349 Air Vent 7855P-063 62-1 Exhaust Temperature Sensor O-ring...
  • Page 81 Figure 64 – Combustion System Replacement Parts – 140W Models PART PART NUMBER DESCRIPTION NUMBER DESCRIPTION NUMBER NUMBER Burner Inlet Chanel (with Damper) 7855P-424 Gas Outlet Pipe 7855P-233 Air Damper 7855P-618 Gas Orifice Nozzle (NG) - 6.5 mm 7855P-228 Air Damper Guide 7855P-369 Gas Orifice Nozzle (LP) - 4.85 mm 7855P-229...
  • Page 82 Figure 65 – Cabinet Replacement Parts – 199W Models PART PART NUMBER DESCRIPTION NUMBER DESCRIPTION NUMBER NUMBER Exhaust Duct Assy 7855P-002 Display Panel 7855P-035 15-1 Exhaust / Intake Duct Clamps 7855P-332 Display Panel Bracket 7855P-413 15-2 Exhaust / Intake Gaskets 7850P-210 Ignition Transformer 7855P-007...
  • Page 83 Figure 66 – Water Piping Replacement Parts – 199W Models PART PART NUMBER DESCRIPTION NUMBER DESCRIPTION NUMBER NUMBER DHW Outlet Pipe 7855P-275 DHW Inlet Block Cap 7855P-283 ¾” Pipe Gasket 38-1 7855P-073 DHW Inlet Adapter 7855P-203 38-2 P-18 O-Ring 7855P-047 CH Block Cap 7855P-283 ½”...
  • Page 84 Figure 67 – Heat Exchanger Replacement Parts – 199W Models PART PART NUMBER DESCRIPTION NUMBER DESCRIPTION NUMBER NUMBER Exhaust Temperature Sensor 7855P-092 Flame Sensor 7855P-031 63-1 Exhaust Temperature Sensor O-Ring 7855P-092 Flame Sensor Cover 7855P-357 Exhaust Temperature Sensor Clip 7855P-349 Heat Exchanger Assembly 7855P-416 Exhaust Pipe Assembly...
  • Page 85 Figure 68 – Combustion System Replacement Parts – 199W Models PART PART NUMBER DESCRIPTION NUMBER DESCRIPTION NUMBER NUMBER Burner Inlet Chanel (with Damper) 7855P-424 Air Intake Hose Bottom Clamp 7855P-429 Air Damper 7855P-618 APS Hose Fitting 7855P-375 Air Damper Guide 7855P-369 Gas Valve Assembly 7855P-431...

  • Page 86: Limited Warranty For Combination Appliances

    COVERAGE A. During the first year after the original date of installation, Westinghouse warrants that it will repair or replace, at its option, any defective or malfunctioning component of the appliance with a component of equivalent size and current model. Replacement components will be warranted for ninety (90) days.
  • Page 87 NO OTHER WARRANTIES This Westinghouse Warranty gives you specific legal rights, and you may also have other rights that vary from state to state. Some states do not allow the exclusion or limitation of incidental or consequential damages so this limitation or exclusion may not apply to you.

  • Page 88: Start-Up Report

    START-UP REPORT LIGHT OFF ACTIVITIES DATE COMPLETED ________________ 1) Fill the Check all piping and gas connections, verify all are tight heating system Has the system been cleaned and flushed? Has the appliance and the system been purged of all air? Refer to Start-Up Preparation, this manual.

  • Page 89: Maintenance Report

    FINAL SIGNED BY TECHNICIAN DATE Table 42 – Start-Up Report MAINTENANCE REPORT In unusually dirty or dusty conditions, care must be taken to keep appliance cabinet door in place at all times. Failure to do so VOIDS WARRANTY! The appliance requires minimal periodic maintenance under normal conditions. However, in unusually dirty or dusty conditions, periodic vacuuming of the cover to maintain visibility of the display and indicators is recommended.
  • Page 90 Homeowner Review what you have done with the homeowner. TECH SIGN OFF Table 43 - *Continue annual maintenance beyond the 4 year as required. WHL-012 REV. 4.8.16...
  • Page 91 WHL-012 REV. 4.8.16...
  • Page 92 WHL-012 REV. 4.8.16...

  • Page 93: Maintenance Notes

    MAINTENANCE NOTES WHL-012 REV. 4.8.16...

  • Page 94: Customer Installation Record Form

    CUSTOMER INSTALLATION RECORD FORM The following form should be completed by the installer for you to keep as a record of the installation in case of a warranty claim. After reading the important notes at the bottom of the page, please also sign this document. Customer’s Name: Installation Address: Date of Installation:...

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Wbrc 199w series

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