Gas Fired Residential Combi Boiler Floor Mount INSTALLATION / START-UP MAINTENANCE / PARTS WARRANTY Models WBRC**140F / WBRC**199F **”NG” Refers to Natural Gas Operation “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.
WHL-015 REV. 8.24.
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.
FOREWORD This manual is intended to be used in conjunction with other literature provided with the appliance. This includes all related control information. It is important that this manual, all other documents included with this system, and additional publications including the National Fuel Gas Code, ANSI Z223.1-2002, be reviewed in their entirety before beginning any work.
E. WATER QUALITY .................................................................................................................................................................... 10 F. FREEZE PROTECTION ........................................................................................................................................................... 10 G. SCALDING .....................................................................................................................................
PART 10 – OPERATING SYSTEM INSTRUCTIONS ................................................................................................................ 48 A. CONTROL PANEL ................................................................................................................................................................... 48 B. LCD DISPLAY DESCRIPTIONS ..............................................................................................................................................
PART 1 – ITEMS SHIPPED WITH THE APPLIANCE ITEM DESCRIPTION QUANTITY Elite Fire Tube Combi Appliance 140F / 199F 1 Installation and User’s Information Manuals, H2 Document 1 Each Condensate Hose (7855P-089) 1 Condensate Adapters and Instruction Sheet (7855P-087) 1 kit CH Pressure Relief Valve With ¾” X 1” Bushing (CH Line ¾” 30 psi) (7855P-077) 1 Each.
ITEM OPTIONAL PARTS (Not Included) DESCRIPTION QUANTITY Threaded ¾” DHW Tankless Isolation Valves (7850P-090) 2 Vent Screens (2” Mesh) (7850P-088) 2 Screens Table 1 – Items Included with the Appliance PART 2 – SAFETY REGULATIONS A. OPERATION AND INSTALLATION WARNINGS To avoid serious injury or death, read, understand, and follow all the precautions listed here. Vapors from flammable liquids will explode and can cause a fire, resulting in personal injury or death.
The owner should inspect the system monthly for damage, water stains, signs of rust, corrosion, and exhaust vent and air intake blockage. If inspection of the unit shows signs of damage, the appliance should be shut off until the problem is repaired by a qualified technician. After installation, all appliance safety devices should be tested. This appliance is certified for indoor installations only.
D. WHEN SERVICING THE APPLIANCE To avoid electric shock, disconnect electrical supply before performing maintenance. To avoid severe burns, allow appliance to cool. Do not use petroleum-based cleaning or sealing compounds in a appliance system. Gaskets and seals in the system may be damaged, possibly resulting in substantial property damage. Do not use “homemade cures” or “patent medicines”. Substantial property damage, damage to appliance, and/or serious personal injury may result.
PART 3 – TECHNICAL SPECIFICATIONS MODEL Installation Minimum / Maximum Input (Btu/Hr) AFUE 140F DHW CH o Hot Water Capacity 35 F Rise o 45 F Rise o 77 F Rise Flue System Combined Vent Length Shipping Weight (lbs est.
Figure 1 – 140F Specifications and Dimensions DESCRIPTION A Gas Connection Adapter B CH Supply Adapter C CH Return Adapter D DHW Outlet Adapter E DHW Inlet Adapter F Condensate Adapter G Drain Adapter H Exhaust Vent Connection I Intake Pipe Connection Table 5 – 140F Adapter Specifications DIAMETER (ALL NPTM) ½” NPT (½” X ¾” Bell Coupling Provided to Upsize Gas Line) 1” 1” ¾” ¾” ½” ½” 3” 3” WHL-015 REV. 8.24.
Figure 2 – 199F Specifications and Dimensions DESCRIPTION A Gas Connection Adapter B CH Supply Adapter C CH Return Adapter D DHW Outlet Adapter E DHW Inlet Adapter F Condensate Adapter G Drain Adapter H Exhaust Vent Connection I Intake Pipe Connection Table 6 – 199F Adapter Specifications DIAMETER (ALL NPTM) ¾” NPT 1” 1” ¾” ¾” ½” ½” 3” 3” WHL-015 REV. 8.24.
Figure 3 – Components NUMBER COMPONENT DESCRIPTION 1 Exhaust Vent Adapter 2 BLDC Fan 3 Flame Detection Window 4 Main Control Board 5 Flame Detection Sensor 6 Control Panel 7 Manual ON/OFF Power Switch 8 Exhaust Pipe 9 Internal CH Pump 10 Mixing Valve 11 Internal Recirculation Pump (DHW) 12 Water Discharge Adapter 13 Water Discharge Valve 14 Internal Storage Tank 15 Condensate Trap Adapter 16 Condensate Hose 1 Table 7 – Component List NUMBER 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 COMPONENT DESCRI
o Cold weather handling – If appliance has been stored in a very cold location (below 0 F) before installation, handle with care until the plastic components come to room temperature. Remove all sides of the shipping crate to allow the appliance to be lifted into its installation location. If surface flooring is rough, take care when sliding appliance into position, as you could damage the appliance. Carefully consider installation when determining appliance location.
Failure to keep appliance area clear and free of combustible materials, liquids, and vapors can result in substantial property damage, severe personal injury, or death. 4. Gas control system components must be protected from dripping water during operation and service. 5. If the appliance is to replace an existing appliance, check for and correct any existing system problems, such as: System leaks Location that could cause the system and appliance to freeze and leak.
D. CLEARANCES FOR SERVICE ACCESS See Figure 5 and Table 7 for recommended service clearances. If these minimum clearances are not provided, it may not be possible to service the appliance without removing it from the space. Space must be provided with combustion/ventilation air openings correctly sized for all other appliances located in the same space as the appliance. The appliance cover must be securely fastened to prevent it from drawing air from the appliance room.
F. EXHAUST VENT AND INTAKE PIPE Vents must be properly supported. The appliance exhaust and intake connections are not designed to carry heavy weight. Vent support brackets must be within 1’ of the appliance and the balance at 4’ intervals. Venting must be readily accessible for visual inspection for the first 3’ from the appliance. NOTE: To prevent combustion air contamination, see Table 9 in this section when considering exhaust vent and intake pipe termination. The appliance is rated ANSI Z21.
3. If practical, close all building doors, windows and all doors between the common venting system and other spaces in the building. Turn on clothes dryers and any appliances not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, at maximum speed. Do not operate a summer exhaust fan. Close all fireplace dampers. 4. Place in operation the appliance being inspected. Follow the lighting instructions.
Vent terminals must be at least 1 foot from any door, window, or gravity inlet into the building. Maintain the correct clearance and orientation between the exhaust vent and intake pipe terminals. The exhaust vent and air intake terminals must be at the same height and their center lines must be spaced apart 1 foot minimum. The bottom of the exhaust vent and intake pipe terminals must be at least 1 foot above the normal snow accumulation level.
B. APPROVED VENT MATERIALS NOTICE Consult Table 11 or the most recent edition of ANSI Z223.1/NFPA 54 or CAN/CGA B149.1 as well as all applicable local codes and regulations when selecting vent pipe materials. Item Exhaust vent or Intake pipe and fittings Pipe Cement Pipe Primer APPROVED EXHAUST VENT AND INTAKE PIPE MATERIAL Standards for Installation in: Material United States Canada PP, CPVC, and PVC venting must be CPVC schedule 40 ASTM-D2846 ULC-S636 Certified.
Vent adaptors are not designed as load-bearing devices, and must not be used to support exhaust vent piping. All vent pipes must be properly connected, supported, and the exhaust must be pitched a minimum of ¼” per foot back to the appliance to allow drainage of condensate. Failure to properly support vent piping and follow the information in this statement could result in product damage, severe personal injury, or death. D.
E. VENT TERMINATION 1. Direct Vent, Two Pipe Roof and Sidewall Vent Terminations Figure 10 – 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. When placing support brackets on vent piping, the first bracket must be within 1 foot of the appliance and the balance at 4 foot intervals on the vent pipe.
2. Direct Vent, Optional Horizontal and Vertical Vent Kits Figure 11 – 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. When placing support brackets on vent piping, the first bracket must be within 1 foot of the appliance and the balance at 4 foot intervals on the vent pipe.
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. Combustion air from the indoor space can be used if the space has adequate area or when air is provided through a duct or louver to supply sufficient combustion air based on the heater input.
Figure 14 – NOTE: These drawings are meant to demonstrate system venting only. The installer is responsible for all equipment and detailing required by local codes. WHL-015 REV. 8.24.
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. 2. Use corrosion-resistant materials approved by the Authority Having Jurisdiction (AHJ) to drain condensate.
If using a condensate pump, select one approved for use with condensing appliances 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” per foot to allow for proper drainage. The condensate line must remain unobstructed, allowing free flow of condensate.
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.
Figure 17 – Gas Line with Shut-Off Valve Detail Figure 18 – Natural Gas Piping Installation – NOTE: Capacity to be Not Less than Total Capacity of Connected Appliances Figure 19 – LP Gas Piping Installation – NOTE: Capacity to be Not Less than Total Capacity of Connected Appliances WHL-015 REV. 8.24.
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. The size of the hot water pipe should be ¾” diameter and the central heating water pipe should be 1” in diameter.
Figure 21 – Piping Legend B. 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. WHL-015 REV. 8.24.
It may be recommended to use a back flow preventer – check local codes. If a back flow preventer or a no return valve is used, a thermal expansion tank must be installed on the cold water supply between the appliance and valve. To control thermal expansion, a thermal expansion tank suitable for potable water should be installed in systems with an installed backflow preventer. DO NOT use a closed type expansion tank.
Figure 22 – 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. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. 4. The minimum pipe size of DHW piping should be ¾” diameter and CH piping should be 1” in diameter. 5.
Figure 23 – 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. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. 4. The minimum pipe size of DHW piping should be ¾” diameter and CH piping should be 1” in diameter. 5.
Figure 24 – 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. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. 4.
Figure 25 – 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. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees. 4.
D. CIRCULATOR SIZING The heat exchanger has a pressure drop that must be considered in your system design. Refer to the tables below for pressure drop. PRESSURE LOSS DUE TO FRICTION IN TYPE L COPPER PIPES NOMINAL PIPE SIZE: 1 INCH FLOW (GPM) PRESSURE LOSS (PSI/FT) PRESSURE LOSS (HEAD FT) 4 0.005 0.01 6 0.011 0.025 8 0.019 0.044 10 0.028 0.064 12 0.040 0.092 14 0.053 0.122 16 0.068 0.157 NOMINAL PIPE SIZE: 1 ¼ INCH FLOW (GPM) PRESSURE LOSS (PSI/FT) PRESSURE LOSS (HEAD FT) 6 0.004 0.009 9 0.008 0.
Pressure relief valves must be installed as close to the appliance as possible. No other valves should be placed between the pressure relief valve and the appliance. DO NOT install a CH pipe line relief valve with a pressure rating greater than 30 psi, or a DHW relief valve with a pressure rating greater than 150 psi. These are the maximum allowable relief valve settings for this appliance. A DHW pressure relief valve is not included with the appliance, and is to be field supplied and installed.
This appliance is equipped with a three prong plug. It should only be plugged directly into a properly grounded three prong receptacle. DO NOT remove the ground plug from the plug. Doing so could result in property damage, serious personal injury, or death. 2. The wiring diagrams contained in this manual are to be used for reference purposes only. 3. Refer to these diagrams and the wiring diagrams of any external controls used with the installation when wiring the appliance.
SYSTEM CONTROL SETTINGS MAXIMUM FLAME DETECTING VOLTAGE PRE-PURGE TIME (Tp) SAFETY TIME (IGNITING TIME) (Ts) IGNITING INTERVAL TIME POST-PURGE TIME (Tip) OVER-HEATING 1,2,3 PROTECTION DETECTION TIME PUMP 1 POST CIRCULATING TIME (T1pv) PUMP 2 POST CIRCULATING TIME (T2pv) HIGH AND LOW WATER LEVEL DETECTION TIME HIGH AND LOW WATER LEVEL RECOVERY TIME Table 20 – System Control Settings 2.5V 5 seconds 3.
Figure 29 – 140F Model Electrical Wiring Diagram WHL-015 REV. 8.24.
Figure 30 – 140F Model Ladder Diagram WHL-015 REV. 8.24.
Figure 31 – 199F Model Electrical Wiring Diagram WHL-015 REV. 8.24.
Figure 32 – 199F Model Ladder Diagram WHL-015 REV. 8.24.
CONNECTOR PIN 1 2 3 4 CN9 5 65001WS-12 6 7 8 9-12 CN6 1 LW6A4-03 3 1 2 CN1 3 SMW250-05 4 5 1 2 CN4 3 LWD1140-06 4 5 6 1 CN8 2 SMW250-04 3 4 1 8 2 10 3 11 4 CN11 12 LWD1140-16 5 13 6 14 7 15 8 16 Table 21 – Appliance Wiring 1 NO.
CONNECTOR NO. OF LOCATION PIN 1 8 2 9 3 10 CN7 4 LWD1140-14 11 5 12 6 13 7 14 1 2 3 4 CN14 5 SMW250-09 6 7 BOARD SILK F.S Flame Detect Sensor OP.S Operating Water Temperature Sensor DH.S DHW Temperature Sensor I.S Return Water Temperature Sensor BG.S Exhaust Temperature Sensor ST.S Storage Temperature Sensor SP.
Figure 34 – 199F Terminal Block Wiring Detail PART 10 – OPERATING SYSTEM INSTRUCTIONS A. CONTROL PANEL Figure 35 – Appliance Control Panel Detail WHL-015 REV. 8.24.
B. LCD DISPLAY DESCRIPTIONS Figure 36 – 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. START-UP SEQUENCE After the appliance is powered ON, the LCD display shows a sequence of information. The icons will flash, followed by various indicators that describe the appliance controller and software versions.
Installer Mode D. CHANGING THE DHW SET-POINT The display shows the icon when the DHW set-point can be changed. Figure 38 – 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 o o display and flash. This indicates that the DHW Set-Point can be changed. Factory DHW Set-Point is 125 F (51 C). Initial DHW Seto o Point range is 95 – 120 F (35 – 49 C).
Figure 39 – CH Set-Point Screen o o o o Factory CH Set-Point is 180 F (82 C). CH Set-Point range is 86 – 180 F (30 – 82 C). 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. NOTE: The CH Set-Point cannot be changed by pressing the button if an outdoor sensor or 0-10V is connected to the boiler.
Press the button again to return to Operation Mode. To turn on Lock Mode, press the button at the d:Lc parameter. Turn the dial Press the button to save the selection and return to the parameters. Press the counterclockwise or clockwise to scroll On or Off. button again to return to Operation Mode. NOTE: The Control System will not allow the changes if Lock Mode is activated. Lock Mode will have to be turned off before making further changes.
3: In OFF 4: Fu GA Display Default 5: St ON 6: OH 68 F Maximum Outdoor Temperature 7: OL 5F Minimum Outdoor Temperature 8: FH 00 Maximum Fan speed 9: FL 00 Minimum Fan speed 10: dr NO Initialized burner operation time 11: dI NO Initialized ignition cycle 12: bt 0 Boost Function 13: Ft 1 CH Anti-Frequency time 14: bo 27 F Set differential temperature to turn burner “ON” 15: OF 68 F Warm Weather Shutdown 16: cH 180 F Maximum supply temperature 17: cL 86 F Minimum
Internal DHW Storage Tank Differential Delay time when 26: dt 2 switching from DHW mode to CH mode Display Default Detail Internal CH Pump Post27:PE 1 Purge Time, T/T Satisfied 28: HA HA 0 N/A Internal CH Pump and AP: cP 5 Internal DHW Storage Pump Test Mode 29: AP cP: off Internal CH Pump and or OFF Internal DHW Storage cP: on Pump Test Mode Table 25 – Installer Mode Descriptions 25: So Sets the Internal DHW Storage Tank Differential o Range: 9 ~ 36 F 27 F Range: 0 – 2 minutes Description Allows the
Er:20 Condensate APS – Closed is Normal, Open is Fault (Condensate Drain Trap) Er:28 Overheat Sensor Open or Short Er:29 Flue APS Open - Closed is Normal, Open is Fault (Intake / Exhaust) Er:30 Storage Tank Sensor Fault Er:32 DHW Sensor Open or Short Er:33 CH Temperature Sensor Open or Short Er:35 Exhaust Sensor Open or Short Er:36 Abnormal Supply Voltage Er:37 Abnormal Supply Frequency Er:38 Error Appears When Control Stores Data, but Data is not Saved Er:40 Gas Leakage is Detected
Er:43 Burner Overheat Switch Open Er:61 Fan Speed Feedback Signal Abnormal Error Code Error Code Description Er:66 Mixing Valve Initial Value Error (Mixing Valve Cannot Return to Initial Position) Er:68 Mixing Valve Operation Error (Mixing Valve Stuck in Initial Position) Er:70 Register, Ram, Rom, I/O Port, AD Abnormal, Important EPROM Data or Safe Data Abnormal Er:72 Flame Signal Detected before Ignition Er:76 Poor Communication Er:80 Low Water Level Sensor (Low Water Level Detected Fo
K. ERROR TREE ANALYSIS 1. FLAME DETECTION Figure 44 – Flame Detection Error Analysis Tree 2. GAS DETECTION Figure 45 – Gas Detection Error Analysis Tree WHL-015 REV. 8.24.
3. APS / BURNER OVERHEAT LIMIT / CONDENSATE BLOCK SWITCH Figure 46 – APS / Burner Overheat Limit / Condensate Block Switch Error Analysis Tree 4. STORAGE / DHW / OP / CH OVERHEAT / EXHAUST OVERHEAT SENSORS Figure 47 – Storage / DHW / OP / CH Overheat / Exhaust Overheat Sensors Error Analysis Tree L. OUTDOOR TEMPERATURE MODE (OPTIONAL) NOTE: If the system requires a fixed operating temperature, the outdoor sensor is not required and should not be installed.
Figure 48 – 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. When the 0-10V input is wired to the boiler terminal strip, a building control system can be used to control the set point temperature of the boiler. The control interprets the 0-10 volt signal as follows; when the signal is between 0 and 1.
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. You may have to have your water quality professionally analyzed to determine whether you need to install a water softener.
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. NOTE: BTU losses apply to both CH and DHW. It is highly recommended to carefully follow the glycol manufacturer’s recommended concentrations, expansion requirements, and maintenance recommendations (pH additive breakdown, inhibitor reduction, etc.
3. Fill to the correct system pressure. Correct pressure will vary with each application. a. Typical cold water fill pressure for a CH residential system is 12 psi. 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.
3. Keep faucets open until water runs freely and all air is purged. Then move on to faucets further away from the appliance in the system. 4. When water flows freely from all hot water faucets, DHW purging is complete. G. CHECK THERMOSTAT CIRCUIT(S) 1. Disconnect the two external wires connected to the appliance thermostat terminals (low voltage terminal strip). 2. Connect a voltmeter across these two incoming wires with power supplied to the thermostat circuits.
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. Doing so will damage the appliance and void the warranty. ADJUSTING GAS PRESSURE AT THE APPLIANCE 1. Open the gas line and water valves. 2.
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.
Figure 51 – Flame Sight Glass CH Return Temperature Sensor (7855P-097) CH Supply Temperature Sensor Exhaust Temperature Sensor (7855P-030) (7855P-092) DHW Temperature Sensor Storage Tank Temperature Sensor (7855P-094) (7855P-057) Outside Outside Resistance (Ω) Resistance (Ω) Temperature (◦F) Temperature (◦F) -4 62162 -4 28409 5 48440 5 22152 14 38045 14 17408 23 30107 23 13782 32 23998 32 10990 41 19261 41 8824 50 15562 50 7131 59 12655 59 5800 68 10353 68 4747 77 8520 77 3906 86 7051 86 3233 95 5867 95
PART 13 – TROUBLESHOOTING PROBLEM No electrical power to the appliance No water available when a faucet is opened Hot water is not available when the faucet is opened. The water temperature is not hot enough or turns cold during use. It takes a long time before hot water flows from the faucet. The water is not hot enough. The water at the faucet is too hot. A fan can be heard even when the unit is not operating. TROUBLESHOOTING CHART POSSIBLE CAUSES POSSIBLE REMEDIES 1.
Ensure service switch and/or circuit breaker to appliance is turned ON Is there 120V at the service switch Nothing appears on the display control panel and no other appliance components are operating Control is not receiving 120V power Is the ON/OFF switch inside the appliance cabinet is turned on Check for 120V at the line voltage terminal block located inside the appliance cabinet Inspect the fuse.
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.
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. The discharge line must be terminated so as to eliminate possibility of severe burns or property damage should the valve discharge.
11. Connect electrical power to the appliance. Maintaining the Condensate System The condensate trap assembly MUST BE PROPERLY INSTALLED according to these instructions when operating the appliance. Operating the appliance without the condensate trap assembly will cause flue gases to leak and result in serious personal injury or death. When servicing is complete, make sure the condensate collector cap is replaced securely.
The condensate line must remain unobstructed, allowing free flow of condensate. If condensate freezes in the line, or if line is obstructed in any other manner, condensate can exit from the tee, resulting in potential water damage to property. 10. If the appliance has a condensate pump, ensure the pump operates properly before considering maintenance complete.
Figure 56 – 140F Model Cabinet Replacement Parts NUMBER DESCRIPTION PART NUMBER NUMBER DESCRIPTION PART NUMBER 12 12-1 12-2 12-3 Exhaust Duct (Assembly) Exhaust/Intake Duct Clamps (Φ100) Exhaust/Intake Gaskets Exhaust Duct 7855P-108 7855P-012 7855P-109 7855P-134 22 23 24 25 12-4 Combustion Analyzer Port Plug O-Ring 7855P-011 26 12-5 12-6 12-7 12-8 13 13-1 13-2 14 15 16 17 18 19 20 21 Combustion Analyzer Port Plug Intake & Exhaust Adapter O-Ring (85 Φ) Exhaust Duct Inner Adapter Exhaust Ad
Figure 57 – 140F Model Heat Exchanger Replacement Parts NOTE: See Replacement Parts List, following page. WHL-015 REV. 8.24.
NUMBER DESCRIPTION PART NUMBER NUMBER 55 Exhaust Temperature Sensor 7855P-092 64 56 57 58 59 59-1 59-2 59-3 59-4 59-5 59-6 59-7 59-8 59-9 59-10 60 61 62 Exhaust Temperature Sensor Clip Exhaust Pipe Exhaust pipe Gasket H/X Assembly Burner Assembly Burner Overheat Switch Burner Body Burner Gasket Ceramic Fiber Burner Burner plate O-Ring Ignition Rod Igniter Gasket Heat Exchanger Top Burner Refractory Flame sensor bracket Flame sensor cover Flame sensor 7855P-349 7855P-006 7855P-351 7855P-064 7855
Figure 58 – 140F Model Combustion System Replacement Parts NUMBER 81 82 82-1 82-2 82-3 82-4 83 84 DESCRIPTION PART NUMBER Air Intake Pipe 7855-071 Fan Assembly N/A Fan 7855P-025 Fan O-ring 7855-371 Air Gas Mixer 7855P-027 Air Intake Orifice Ø29.5 7855P-130 Fan Outlet Mesh 7855-299 Burner Inlet Chanel Gasket 7855-370 Gas Orifice Nozzle (NG) – 5.9 mm 7855-026 85 Gas Orifice Nozzle (LP) – 4.
Figure 59 – 140F Model DHW Side Replacement Parts PART NUMBER 41 DHW Tank Assy 7855P-059 42 DHW Tank Bracket 7855P-112 43 DHW Tank Clamp 7855P-113 44 Storage Temperature Sensor 7855P-057 45 Water Storage Tank Bracket 7855P-058 46 DHW Tank Cover B/K 7855P-129 47 Storage Tank Outlet Pipe 7855P-082 Table 40 – 140F Model DHW Side Replacement Parts NUMBER DESCRIPTION NUMBER DESCRIPTION 48 49 50 51 52 53 54 DHW Outlet Pipe Mixing Valve DHW Inlet Pipe DHW Flow Sensor Drain Pipe Connector 1 Drain Valve Dra
Figure 60 – 199F Model Cabinet Replacement Parts NUMBER DESCRIPTION PART NUMBER NUMBER DESCRIPTION 12 12_1 12_2 12_3 Exhaust Duct (Assembly) Exhaust/Intake Duct Clamps (Φ100) Exhaust/Intake Gaskets Exhaust Duct 7855P-002 7855P-332 7850P-210 7855P-333 22 23 24 25 12_4 Combustion Analyzer Port Plug O-Ring 7855P-334 26 7855P-335 7855P-256 7855P-004 7855P-254 7855P-411 7855P-337 7855P-005 7855P-133 7855P-009 7855P-105 7855P-272 7855P-016 7855P-014 7855P-108 27 28 29 30 31 32 33 34 35 36 37 38
Figure 61 – 199F Model Heat Exchanger Replacement Parts NUMBER DESCRIPTION PART NUMBER NUMBER DESCRIPTION PART NUMBER 55 Exhaust Temperature Sensor 7855P-092 63 56 Exhaust Temperature Sensor Clip 7855P-349 64 57 58 59 59-1 59-2 59-3 59-4 59-5 59-6 59-7 59-8 59-9 60 61 62 Exhaust Pipe Assembly Exhaust pipe Gasket H/X Assembly Burner Body Assembly Burner Body Burner Gasket Ceramic Fiber Burner Ignition Rod Igniter Gasket Burner Overheat Switch Heat Exchanger Top Burner Refractory Flame sens
Figure 62 – 199F Model Combustion System Replacement Parts NUMBER DESCRIPTION PART NUMBER 78 79 80 81 82 83 83-1 83-2 83-3 83-4 Burner Inlet Chanel (with Damper) Air Damper Air Damper Guide Fan Outlet Gasket Burner Inlet Chanel Gasket Fan and Mixer Assembly Fan Fan O-Ring Air-Gas Mixer (Inner Part) Air-Gas Mixer Gasket 83-5 84 PART NUMBER NUMBER DESCRIPTION 7855P-424 7855P-618 7855P-369 7855P-425 7855P-426 7855P-427 7855P-025 7855P-371 7855P-609 7855P-428 86 87 88 88-1 88-2 88-3 88-4 88-5 Air
Figure 63 – 199F Model DHW Side Replacement Parts PART NUMBER 41 DHW Tank Assy 7855P-059 42 DHW Tank Bracket 7855P-112 43 DHW Tank Clamp 7855P-113 44 Storage Temperature Sensor 7855P-057 45 Water Storage Tank Bracket 7855P-058 46 Air Vent 7855P-063 47 Storage Tank Outlet Pipe 7855P-114 Table 44 – 199F Model DHW Side Replacement Parts NUMBER DESCRIPTION NUMBER DESCRIPTION 48 49 50 51 52 53 54 DHW Outlet Pipe Mixing Valve DHW Inlet Pipe DHW Flow Sensor Drain Pipe Connector 1 Drain Valve Drain Pipe Co
Limited Warranty for Combination Appliances (Floor and Wall Mounted Models) Westinghouse warrants each instantaneous appliance and its parts to be free from defects in materials and workmanship according to the following terms, conditions, and time periods. UNLESS OTHERWISE NOTED THESE WARRANTIES COMMENCE ON THE DATE OF INSTALLATION. This limited warranty is only available to the original owner of this appliance, and is non-transferable.
13. Damages, malfunctions, or failures caused by abuse, accident, fire, flood, freeze, lightning, acts of God and the like. 14. Tank failures (leaks) caused by operating the appliance in a corrosive or contaminated atmosphere. 15.
START-UP REPORT LIGHT OFF ACTIVITIES 1) Fill the heating system 2) Electrical 3) Check gas pipe 4) Venting 5) Condensate piping / tubing FINAL DATE COMPLETED ________________ Yes No Check all piping and gas connections, verify all are tight 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. Has the auto air purge feature been used / set? Refer to Start-Up Preparation, this manual.
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.
WHL-015 REV. 8.24.
WHL-015 REV. 8.24.
MAINTENANCE NOTES WHL-015 REV. 8.24.
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.
