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Westinghouse WBRC 140 Series, Installation, Start-Up, Maintenance, Parts, Warranty

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Westinghouse WBRC 140 Series Installation, Start-Up, Maintenance, Parts, Warranty Download Page 55

whl-648 Rev. 001 Rel. 003 Date 10.8.19

55

B. Error Tree Analysis

1. Flame Detection

Figure 50 - Flame Detection Error Analysis Tree

2. Air Pressure Switch / Burner Overheat Limit / Condensate Block Switch

Figure 51 - APS / Burner Overheat Limit / Condensate Block Switch Error Analysis Tree

3. DHW / Operating Temperature / CH Overheat / Exhaust Sensors

Figure 52 - DHW / Operating Temperature / CH Overheat / Exhaust Sensors Error Analysis Tree

Summary of Contents for WBRC 140 Series

Page 1: ...e for typographical errors in literature NOTETO CONSUMER PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE www westinghousewaterheating com whl 648 Rev 001 Rel 003 Date 10 8 19 WARNING Improper installation adjustment alteration service or maintenance could void product warranty and cause property damage severe personal injury or death California Proposition 65 Warning This product contains chemic...

Page 2: ...ICE is used to address practices not related to personal injury WARNING 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...

Page 3: ...lled by qualified and licensed personnel The installer should be guided by the instructions furnished with the boiler and by local codes and utility company requirements In the absence of local codes preference should be given to the National Fuel Gas Code ANSI Z223 1 latest version Installations Must Comply With Local state provincial and national codes laws regulations and ordinances The latest ...

Page 4: ...ut of 300 000 BTU hr or greater This boiler is equipped with a tankless coil The CSD 1 ASME Code Section CW 400 requires that hot water heating and supply boilers have a a UL 353 temperature control device b at least one 1 temperature actuated control to shut off the fuel supply when system water reaches a preset operating temperature c a high temperature limit control that prevents the water temp...

Page 5: ...or or removable panel is acceptable front clearance A 3 minimum clearance must be provided from the boiler front cover to the removable panel or combustible door This boiler has been approved for closet installation and installation on combustible flooring Do not install directly on carpeting Install the boiler in a location where relief valve discharge or a leak will not result in damage to the s...

Page 6: ...ly be plugged directly into a properly grounded three prong receptacle DO NOT remove the ground plug from the plug Any claims for damage or shortage in shipment must be filed immediately against the transportation company by the consignee This boiler provides a overheat shutdown limit In the event the boiler water temperature exceeds the set point of the control limit the cutoff will trip and the ...

Page 7: ...ng or sealing compounds in a boiler system Gaskets and seals in the system may be damaged This can result in substantial property damage Do not use homemade cures or patent medicines Damage to the boiler substantial property damage and or serious personal injury may result Continual fresh make up water will reduce boiler life Mineral buildup in the heat exchanger reduces heat transfer overheats th...

Page 8: ...from your local plumbing supplier Table 3 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 Approximate Time Temperature Relationships in Scalds 120oF More than 5 minutes 125oF 1 1 2 to 2 minutes 130oF About 30 seconds 135oF About 10 seconds 140oF Less than 5 seconds 145oF ...

Page 9: ...for damage or shortage in shipment must be filed immediately against the transportation company by the consignee NOTICE Part 2 Before You Start Open the shipping crate of the boiler B Optional Equipment Optional equipment available from Westinghouse and Part Optional Parts Threaded 3 4 DHW Tankless Isolation Valves w Pressure Relief Valve 7850P 090 1 Table 5 Optional Equipment Other Optional Equip...

Page 10: ...as the heat exchanger are directly influenced by proximity to damp and salty marine environments In such areas higher concentration levels of chlorides from sea spray coupled with relative humidity can lead to degradation of boiler components In these environments boilers must not be installed using direct vent systems which draw outdoor air for combustion Such boilers must be installed using room...

Page 11: ...ion air openings for all other boilers located in the space with the boiler For power venting installations using room air for combustion refer to the venting section this manual for descriptions of confined and unconfined spaces Do not install the boiler in an attic Failure to comply with these warnings could result in substantial property damage severe personal injury or death CAUTION WARNING E ...

Page 12: ...ceiling the other 6 15cm above the space floor Each opening should have a free area of one square inch per 1 000 BTU hr 22cm2 kW of the total input of all appliances in the space but not less than 100 square inches 645cm2 If the confined space is within a building of tight construction air for combustion must be obtained from the outdoors as outlined in the Venting section of this manual CAUTION W...

Page 13: ...oors between the space in which the appliance remains connected to 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 ...

Page 14: ...Fuel Modulation Ceramic Fiber Infrared Gas Valve System Combination Modulating Current Proportional Internal Pipe Material Copper Wall Mount Model Dimensions W 17 5 H 34 D 15 4 W 19 7 H 37 D 16 8 Floor Model Dimensions W 19 H 45 D 17 W 22 H 48 D 18 Internal Storage Tank Water Capacity DHW 1 Gallon 1 5 Gallons Heat Exchanger Capacity 4 Gallons 3 5 Gallons Minimum Flow Rate 0 5 GPM Total Water Capac...

Page 15: ... burner output to very low levels to match the system demand and achieve better overall control of the heating system for maximum efficiency and reliability Control The integrated control system monitors the system and responds to internal and external signals to regulate fan speed and control output This allows the boiler to deliver only the amount of heat energy required and nothing more The con...

Page 16: ...ystem Each boiler is supplied with a 6 inch piece of CPVC that must be connected into the exhaust vent adapter Boiler 1 Return and 1 Supply Connection Boilers are equipped withbothtopandbottompipingconnectionsforgreaterinstallation flexibility Gas Connection The boiler is equipped with a gas connection to connect the incoming gas supply Field Wiring and Power Switch Each boiler is supplied with a ...

Page 17: ... Manual ON OFF Power Switch 17 Condensate Trap 27 Exhaust Vent Pipe 8 Internal Recirculation Pump DHW CH Internal Primary Pump 18 Condensate Air Pressure Switch 28 Exhaust Vent Adapter 9 CH Supply Adapter 19 Mixing Valve 29 Air Intake Adapter 10 CH Return Filter 20 Terminal Block Table 12 Component List J Wall Mounting Wall Mount Models Only The boiler may be installed on any suitable internal wal...

Page 18: ...or bolts Ensure the mounted bracket is level See Figure 6A 5 Align the boiler bracket grooves on the back of the boiler with the tongues on the wall bracket and hang the boiler on the bracket See Figure 6B Figure 6 Wall Mounting the Boiler K Flow Restrictor A flow restrictor is installed on this boiler in the DHW inlet adapter to avoid excessive flow at the faucets See Flow Charts this manual for ...

Page 19: ...n a system with this boiler Doing so WILL VOID the warranty Use only copper brass or stainless steel fittings Teflon thread sealant must be used on all connections A General Plumbing Guidelines CAUTION Use two wrenches when tightening water piping at the boiler Use one wrench to prevent the boiler return or supply line from turning Failure to prevent piping connections from turning could cause dam...

Page 20: ...ld result in property damage severe personal injury or death DO NOT install automatic air vents on closed type expansion tank systems Air must remain in the system and return to the tank to provide an air cushion An automatic air vent would cause air to leave the system resulting in improper operation of the expansion tank CAUTION Diaphragm or Bladder Expansion Tank Always install an automatic air...

Page 21: ...whl 648 Rev 001 Rel 003 Date 10 8 19 21 E Applications Figure 10 Piping Symbol Legend ...

Page 22: ... all circulators 8 VERY IMPORTANT Minimum flow rates outlined in this manual must be maintained through the heat exchanger to minimize short cycling 9 In a valve based system each heating zone has a zone valve which opens when that zone calls for heat Each zone thermostat is wired to its corresponding zone valve Contacts in the zone valves provide a signal to the boiler to operate when there is a ...

Page 23: ...Secondary System flow secondary loop must be greater than the boiler s primary loop flow 7 Install a minimum of 12 diameters of straight pipe upstream of all circulators 8 VERY IMPORTANT Minimum flow rates outlined in this manual must be maintained through the heat exchanger to minimize short cycling 9 Each heating zone of a pump based system has its own circulator with turns on when a zone thermo...

Page 24: ...ow 7 Install a minimum of 12 diameters of straight pipe upstream of all circulators 8 VERY IMPORTANT Minimum flow rates outlined in this manual must be maintained through the heat exchanger to minimize short cycling 9 Each heating zone of a pump based system has its own circulator with turns on when a zone thermostat calls for heat 10 Unit is equipped with built in primary pump for the heating loo...

Page 25: ...of 12 diameters of straight pipe upstream of all circulators 8 VERY IMPORTANT Minimum flow rates outlined in this manual must be maintained through the heat exchanger to minimize short cycling 9 Each heating zone of a pump based system has its own circulator with turns on when a zone thermostat calls for heat 10 Unit is equipped with built in primary pump for the heating loop This pump is sized to...

Page 26: ...imary Secondary System flow secondary loop must be greater than the boiler s primary loop flow 7 Install a minimum of 12 diameters of straight pipe upstream of all circulators 8 VERY IMPORTANT Minimum flow rates outlined in this manual must be maintained through the heat exchanger to minimize short cycling 9 Each heating zone of a pump based system has its own circulator with turns on when a zone ...

Page 27: ...nimum of 12 diameters of straight pipe upstream of all circulators 8 VERY IMPORTANT Minimum flow rates outlined in this manual must be maintained through the heat exchanger to minimize short cycling 9 Each heating zone of a pump based system has its own circulator with turns on when a zone thermostat calls for heat 10 Unit is equipped with built in primary pump for the heating loop This pump is si...

Page 28: ...replace it with a new relief valve Test relief valve at least once annually to ensure the waterway is clear If valve does not operate turn the boiler off and call a plumber immediately Take care whenever operating relief valve to avoid scalding injury or property damage For boilers installed with only a pressure relief valve the separatestoragevesselmusthaveatemperatureandpressure relief valve ins...

Page 29: ...gaskets can cause eventual gasket failure and exhaust gas leakage Ensure the exhaust vent pipe is properly beveled and seated before insertion into the flue adapter Failure to do so could result in property damage severe personal injury or death DANGER Due to the extreme flammability of most glues cements solvents and primers used to join plastic exhaust vent and intake pipes explosive solvent vap...

Page 30: ...ce piping BEFORE transitioning to the approved materials listed above DO NOT REMOVE these installed components Doing so WILL VOID appliance warranty PVC CPVC pipe and fittings of the same diameter are considered interchangeable The use of cellular core PVC ASTM F891 cellular core CPVC or Radel polyphenolsulfone in non metallic venting systems is prohibited Covering non metallic vent pipe and fitti...

Page 31: ...r that may be opened Direct Vent 1 foot 3 feet 91 cm Power Vent 4 ft below or to side of opening 1 ft above opening C Clearance to permanently closed window D Vertical clearance to ventilated soffit located above the terminal within a horizontal distance 2 feet 61 cm from the center line of the terminal E Clearance to unventilated soffit F Clearance to outside corner G Clearance to inside corner H...

Page 32: ...t included Follow the steps below to install 3 vent pipe into the boiler vent collar See Figure 19 for additional details Figure 19 Correct Installation into the Boiler Collar Figure 20 Transitioning from 3 to 2 Vent Pipe WARNING Failure to install the included 6 length of 3 CPVC pipe in the exhaust vent adapter before transitioning to other vent materials could result in property damage severe pe...

Page 33: ...ference snow levels in establishing a minimum height for the installation of exhaust vent or air intake terminations Snow levels shall be determined as follows a The installation location may by ordinance designate how snow levels are calculated in that location or b In the absence of specific ordinances snow levels shall be calculated from the average monthly maximum depth of snow accumulation as...

Page 34: ...ust GREATER TYP MAINTAIN 12 MINIMUM CLEARANCE ABOVE HIGHEST OR GRADE WHICHEVER IS VENT KIT EXHAUST ANTICIPATED SNOW LEVEL EXTERIOR WALL 06 23 15 LP 505 A Sidewall Venting with Kit 05 26 15 LP 505 C INTAKE IMPORTANT EXHAUST INTAKE LEG MUST BE FACING UP CONCENTRIC VENT KIT MAINTAIN 12 MINIMUM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL OR GRADE WHICHEVER IS GREATER TYP 1 MIN Sidewall Venting with...

Page 35: ...nt Screen installation ONLY NOTES A For every 1 of overhang the exhaust vent must be located 1 vertical below overhang overhang means top of building structure and not two adjacent walls corner of building B Typical installations require 12 minimum separation between bottom of exhaust outlet and top of air intake C Maintain 12 minimum clearance above highest anticipated snow level or grade whichev...

Page 36: ... vent kits Refer to Concentric Vent Kit installation manual LP 166 for further information on venting with the optional concentric vent kits Concentric venting through an existing system must run vertically through the roof See Table 18 for proper minimum vent sizing Use only the approved venting materials specified in Table 13 for piping the system All instructions listed in this Venting section ...

Page 37: ... from the outdoors into the appliance intake connection Unconfined space is space with volume greater than 50 cubic feet per 1 000 Btu hour 4 8 cubic meters per kW of the total input rating of all fuel burning appliances installed in that space Rooms connected directly to this space through openings not furnished with doors are considered part of the space Confined space is space with volume less ...

Page 38: ...ings and cement 4 A frozen condensate line could result in a blocked vent condition It is very important to protect the condensate line from freezing temperatures or any type of blockage In installations that may encounter sustained freezing conditions the use of heat tape is recommended to avoid freezing of the condensate line It is also recommended to bush up the condensate line size to 1 and te...

Page 39: ...rnal Manual Power Switch 1 This boiler must be properly grounded Ensure the electrical receptacle is properly grounded Do not remove the grounding prong from the boiler plug 2 Do not attach the ground wire to either the gas or water piping 3 The wiring diagrams in this manual are to be used for reference purposes only 4 Refer to these diagrams and the wiring diagrams of any external controls used ...

Page 40: ...whl 648 Rev 001 Rel 003 Date 10 8 19 40 Figure 33 Electrical Wiring Diagram ...

Page 41: ...whl 648 Rev 001 Rel 003 Date 10 8 19 41 Figure 34 Ladder Diagram ...

Page 42: ...W250 03 1 RS 485 RS 485 SELV 5V DC 2 GND 3 RS 485 CN4 LWD1140 06 1 FAN NOT USED 2 GND SELV 14V DC 3 VDD 4 Fan power start coil SELV 8 26 5V AC 5 Fan power end coil 6 Fan speed feedback signal SELV 14V DC CN8 SMW250 04 1 MCU ISP GND SELV 5V DC 2 ISP Reset Port 3 ISP TOOL0 Data Port 4 VCC CN11 LWD1140 16 1 HWL NOT USED SELV 12V AC 8 2 LWL Low Water Level Sensor 10 3 HD Central Heating Demand T T SEL...

Page 43: ...ture Sensor 12 6 ST S NOT USED 13 7 SP S Overheat Temperature Sensor 14 CN14 SMW250 09 1 DHM GND SELV 14V 2 DHM Stepper Motor Position 3 VDD 4 DHM Stepper Motor Coil X Phase 5 DHM Stepper Motor Coil Y Phase 6 VDD 7 DHW Stepper Motor Coil X Phase 8 DHM Power IWM Stepper Motor Coil Y Phase 9 NOT USED CN3 SMW250 06 4 FLUX1 VCC SELV 5V 5 Water Flow Sensor 6 GND CN5 SMW250 10 1 RPM Fan RPM Check 2 GND ...

Page 44: ... Table 23 Natural Gas Delivery Capacity Refer to ANSI Z223 1 National Fuel Gas Code Latest Edition 3 LP Liquid Propane Gas Pipe Sizing Contact gas supplier to size pipes tanks and 100 lockup gas pressure regulator Adjust propane supply regulator provided by the gas supplier for 14 inches w c maximum pressure B Gas Connection Requirements 1 The gas connection fitting on the boiler is NPT NOTE The p...

Page 45: ...l adjustment according to the combustion chart Table 25 Failure to do so could result in serious personal injury or death If the readings obtained are lower or higher than the combustion readings in Table 25 use a 4mm Allen key to adjust the offset screw in a clockwise positive or counterclockwise negative direction approximately 1 4 turn See Figure 39 Check your combustion values Repeat this proc...

Page 46: ...ec xx xx Hardware Version for Boiler 1 sec Hdn 1 sec 00xx Table 26 Start Up Sequence NOTE WhentheboilerispoweredON thefanwilloperateatmaximum speed for 1 minute to purge the air and any fumes from the intake and exhaust pipes Figure 42 Initial Display Screen NOTE The initial display screen will differ depending on a number of factors including whether the boiler detects a call for heat or hot wate...

Page 47: ...nge the temperature indicator from Fahrenheit to Celsius press and hold the button for more than five 5 seconds when the display panel is powered ON This will toggle the temperature unit indicated on the display E Changing the CH Set Point Press the button when the display panel is powered ON The display will appear as follows The set point will flash when the CH set point can be changed Figure 44...

Page 48: ...t temperature I St N A Not Used Default is 0 J oH CH water overheat temperature Current temperature on the overheat sensor L rt 1 PH Burner Operation Time Power supply L rt on display on sub menu Time boiler has been powered in 1000 hour units 2 rh Burner operating time Time burner has operated in 1 hour units 3 rH Burner operating time Time burner has operated in 1000 hour units 4 It Ignition att...

Page 49: ...o Maximum Outdoor Temperature 9o F 8 FH 00 Maximum Fan Speed Adjusts Maximum Fan Speed Range 30 30 9 FH 00 Minimum Fan Speed Adjusts Minimum Fan Speed Range 30 30 10 dr NO Reset burner operation time Select YES to reset burner operation time Range NO or YES 11 dl NO Reset ignition cycle Select YES to reset ignition cycles Range NO or YES 12 bt 0 Boost Function When Outdoor Temperature Mode is used...

Page 50: ...s from sea level to 1999 feet 2 5 for locations from 2000 to 4999 feet 5 8 for locations from 5000 to 7999 feet 8 10 for locations from 8000 to 10000 feet Default 0 2 NOTE Use a calibrated combustion analyzer to ensure CO and CO2 are within the ranges shown in this manual Adjust the offset screw in the clockwise positive or counterclockwise negative directions approximately 1 8 turn if the measure...

Page 51: ...ct Reversed polarity could lead to erratic and or no response from the boiler controller NOTE Outdoor Temperature Mode Icon on the display will flash if an Outdoor Sensor or 0 10 Volt is not connected to the boiler 0 10 V INPUT TABLE When outside voltage is applied to the connector 2 in the wiring diagram 1 The outdoor temperature sensor does not work 2 The 0 10V symbol is displayed 3 The heating ...

Page 52: ...ter with steel wool to remove oxides Ensure proper separation 3 4 mm 6 Replace the spark igniter if damaged 7 Assure that the flame is stable when lit 8 If the problem persists replace the main control Er 16 Operating Temperature Sensor Detects Water Temperature Greater than 203oF 95oC This Error Code will go away when the DHW temperature decreases If Error happens again 1 Check if dip switch High...

Page 53: ...g plate 2 If problem persists replace the main control Er 38 Error Appears When Control Stores Data but Data is not Saved Press the Power button to clear the Error Code Replace the main control Er 41 Fan Speed too high with flame on The Error Code will go away unless it occurs five 5 times in ten 10 minutes Press the Power button to clear the Error Code If Error happens again 1 Check the vent conn...

Page 54: ...ain 1 Ensure all valves are open to the boiler and there are no leaks 2 Ensure all air has been purged from the system 3 Check wiring connections to low water level sensor Ensure all are secure 4 Check low water level sensor resistance If resistance is zero replace the sensor 5 If the problem persists replace the main control Er 81 Low Water Level Circuit This Error Code will go away when the cond...

Page 55: ...Error Analysis Tree 2 Air Pressure Switch Burner Overheat Limit Condensate Block Switch Figure 51 APS Burner Overheat Limit Condensate Block Switch Error Analysis Tree 3 DHW Operating Temperature CH Overheat Exhaust Sensors Figure 52 DHW Operating Temperature CH Overheat Exhaust Sensors Error Analysis Tree ...

Page 56: ...in the pipes to flow from the faucet 2 Have recirculation valves and or plumbing return line s installed and program the unit for recirculation mode Domestic hot water is too hot or not hot enough Is the water temperature set too high or low Adjust the temperature setting House is not heating up Is the CH temperature set too low Adjust the temperature setting A fan can be heard even when the unit ...

Page 57: ... s plug Check for continuity on the wire harness from the display to the control See repair parts sec tion for proper replacement part Cycle power off and on using boiler power switch and check for operation Replace with new display module See repair parts section for proper replacement part Display repeatedly goes through initialization sequence Occurs when control does not receive signal from fa...

Page 58: ...oor and smell interior of boiler enclosure Do not proceed with startup if there is any indication of a gas leak Repair any leaks at once PROPANE Boilers ONLY The propane supplier mixes an odorant with the propane to make its presence detectable In some instances the odorant can fade and the gas may no longer have an odor Before startup and periodically thereafter have the propane supplier verify t...

Page 59: ... initial fill and during boiler startup and testing check system thoroughly for leaks Repair all leaks before proceeding further It is highly recommended to carefully follow the glycol manufacturer s recommended concentrations expansion requirements and maintenance recommendations pH additive breakdown inhibitor reduction etc You must carefully calculate the additional friction loss in the system ...

Page 60: ...nsate removal pump available from Westinghouse 554200 This pump is equipped with two leads that can be connected to an alarm or another type of warning device to alert the user of a condensate overflow which if not corrected could cause property damage 3 If a long horizontal run is used it may be necessary to create a vent in the horizontal run to prevent a vacuum lock in the condensate line 4 Do ...

Page 61: ...tions been installed at least one foot above exterior grade and one foot above normal snow accumulation level Is vent piping properly supported Has vent piping been checked for leaks Has the exhaust vent line been pitched back to the boiler at a rate of 1 4 per foot Have the exhaust vent and intake pipes been properly installed to the boiler Install Condensate Piping Tubing and Components Yes No H...

Page 62: ...o have these contaminates in Table 7 If any of these contaminates are in the room where the boiler is located or combustion air is taken from one of the areas listed the contaminants must be removed immediately or the intake pipe must be relocated to another area Ensure the Boiler Cabinet is Closed Ensure the boiler cabinet is closed Tighten the two upper and lower screws to secure it The cabinet ...

Page 63: ...d system Ifreliefvalveseatsproperly restorepowertotheboiler Observe operation for five minutes and ensure it operates properly Check the Burner Clean the exterior of the burner Flushing the CH Closed 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 wat...

Page 64: ...system to aid in draining the system WARNING Water drained from the boiler could be scalding hot Wait for the boiler to cool before removing the CH or DHW inlet filters Failure to do so could result in property damage personal injury or death Figure 59 Condensate Detail 5 Remove the DHW inlet filter Then clean it with a toothbrush and clean running water See Figure 58 10 Turn on the gas valve Turn...

Page 65: ... display and indicators is recommended Periodic maintenance should be performed once a year by a qualified service technician to assure that all the equipment is operating safely and efficiently The owner should make necessary arrangements with a qualified heating contractor for periodic maintenance of the boiler Installer must also inform the owner that the lack of proper care and maintenance of ...

Page 66: ...rner tube and combustion chamber coils Clean according to maintenance section of manual Vacuum combustion chamber Spark Electrode Clean Set gap at 1 8 CONDENSATE Condensate Trap Clean debris from the condensate trap Fill with clean water Neutralizer Check condensate neutralizer Replace if necessary Condensate hose Disconnect condensate hose Clean out dirt and re install NOTE Verify the flow of con...

Page 67: ...ws securing the right side panel to the securing the right side panel to the appliance stand Remove the right side panel 4 Remove all screws attaching adapters to the side panel Unscrew the nut securing the condensate adapter to the side panel Remove the the side panel Remove the needle barb fitting and disconnect the condensate hose 5 Use a Phillips Head screwdriver to remove the eight 8 screws s...

Page 68: ...Analyzer Port Plug O Ring 7855P 334 25 Manual Power Switch 7855P 014 15 5 Combustion Analyzer Port Plug 7855P 335 26 Terminal Block 7855P 015 15 6 Intake and Exhaust Adapter O Ring Φ85 7855P 256 27 Condensate Block APS 7855P 017 15 7 Exhaust Duct Inner Adapter 7855P 004 28 Front Cover 7855P 218 15 8 Exhaust Adapter O Ring Φ75 7855P 254 29 Display Panel Cover 7850P 023 16 Air Intake Cap Assembly 78...

Page 69: ...55P 276 37 1 P22A O Ring 7850P 262 51 CH Return Block with Filter Clips 7855P 284 37 2 Pipe Adapter Clip 7855P 278 52 CH Return Adapter 7855P 227 38 DHW Outlet Adapter 7855P 225 53 Filter for CH Return Block 7855P 265 39 DHW Temperature Sensor 7855P 094 54 CH Filter Clip 7855P 286 40 DHW Inlet Pipe 7855P 241 55 CH Return Pipe 7855P 243 41 DHW Flow Sensor 7855P 083 55 1 3 4 Pipe Gasket 7855P 073 42...

Page 70: ...855P 353 68 2 1 CH Supply Pipe Gasket 7855P 074 64 1 Burner Body Assembly N A 69 Internal DHW Storage Tank 7855P 240 64 2 Burner Overheat Switch 7855P 066 70 CH Supply Temperature Sensor 7855P 030 64 3 Burner Body 7855P 067 71 Water Level Detection Sensor Low Water Cut Off 7855P 029 64 4 Burner Gasket 7855P 266 72 Flame Sensor Bracket 7855P 356 64 5 Ceramic Fiber Burner 7855P 069 73 Flame Sensor 7...

Page 71: ...ure Sensor 7855P 030 64 2 Burner Overheat Switch 7855P 066 71 Water Level Detection Sensor Low Water Cut Off 7855P 029 64 3 Burner Body 7855P 440 72 Flame Sensor Bracket 7855P 356 64 4 Burner Gasket 7855P 634 73 Flame Sensor 7855P 031 64 5 Ceramic Fiber Burner 7855P 069 74 Condensate Trap Assembly New Model 7855P 605 64 6 Burner Plate O Ring 7855P 249 74 1 Condensate Trap Assembly Old Model 7855P ...

Page 72: ... Damper 4G 7855P 368 88 Gas Pipe to Mixer 7855P 437 79 2 Air Damper Guide 7855P 369 89 3 4 Gas Pipe Gasket 7855P 379 79 3 Fan Outlet Gasket 7855P 425 90 Gas Valve Assembly 7855P 381 80 Fan 7855P 025 90 1 Gas Valve Outlet Adapter 7855P 232 81 Fan O Ring 7855P 371 90 2 Gas Valve O Ring 7855P 076 82 Mixer NG LP 90 3 Gas Valve 7855P 034 7855P 317 7855P 307 90 4 Gas Valve Inlet Adapter 7855P 033 83 Air...

Page 73: ...6 Intake and Exhaust Adapter O Ring Φ85 7855P 256 28 Terminal Block 6P Combi 7855P 272 15 7 Exhaust Duct Inner Adapter 7855P 004 29 Condensate Block APS 7855P 017 15 8 Exhaust Adapter O Ring Φ75 7855P 254 30 Front Cover 7855P 273 16 Air Intake Assembly 7855P 411 31 Display Panel Cover 7850P 023 16 1 Air Intake Cap 7855P 337 32 Exhaust Adapter Sealing Gasket 7850P 041 17 Air Vent 7855P 063 33 Top W...

Page 74: ...HW Outlet Adapter 7855P 225 55 CH Return Adapter 7855P 227 41 DHW Temperature Sensor 7855P 094 56 Filter for CH Return Block 7855P 265 42 DHW Inlet Pipe 7865P 031 57 CH Filter Clip 7855P 286 43 DHW Flow Sensor 7855P 083 58 CH Return Pipe 7855P 287 44 Mixing Valve 7855P 043 58 1 3 4 Pipe Gasket 7855P 073 44 1 P15 O Ring 7855P 044 59 CH Return Temperature Sensor 7855P 097 44 2 P16 O Ring 7855P 075 6...

Page 75: ...dy Assembly N A 65 Exhaust Pipe Assembly 7855P 415 76 2 Burner Body 7855P 606 66 Exhaust Pipe Gasket 7855P 418 76 3 Burner Gasket 7855P 419 67 Storage Tank Clamp 7855P 291 76 4 Ceramic Fiber Burner 7855P 420 68 Storage Tank Bracket 7855P 292 76 5 Ignition Rod 7855P 607 69 CH Supply Pipe 7855P 293 76 6 Igniter Gasket 7855P 252 69 1 3 4 CH Supply Pipe Gasket 7855P 073 76 7 Burner Overheat Switch 785...

Page 76: ...nk Clamp 7855P 291 76 4 Ceramic Fiber Burner 7855P 420 68 Storage Tank Bracket 7855P 292 76 5 Ignitor 7855P 607 69 CH Supply Pipe 7855P 293 76 6 Ignitor Gasket 7855P 252 69 1 3 4 CH Supply Pipe Gasket 7855P 073 76 7 Burner Overheat Switch 7855P 066 69 2 1 CH Supply Pipe Gasket 7855P 074 77 Condensate Trap Assembly 7855P 605 70 Storage Tank 7855P 294 77 1 Condensate Trap O Ring P22A 7855P 276 71 CH...

Page 77: ...ner Inlet Channel Gasket 7855P 426 88 2 Gas Valve O Ring 7855P 076 83 Fan and Mixer Assembly 7855P 427 88 3 Gas Valve 7855P 034 83 1 Fan 7855P 025 88 4 Gas Valve Bracket 7855P 436 83 2 Fan O Ring 7855P 371 89 1 2 Gas Pipe Gasket 7855P 221 83 3 Air Gas Mixer Inner Part 7855P 609 90 Gas Orifice NG 8 3 mm 7855P 610 83 4 Air Gas Mixer Gasket 7855P 428 Gas Orifice LP 6 3 mm 7855P 435 83 5 Air Gas Mixer...

Page 78: ...0P 084 12 Screw M4 x 10MM 7855P 390 4 Screw M6 x 12MM Not Shown 7865P 024 13 3 4 ID SS Flex 22 Long 7865P 017 5 Right Side Panel w Labels 7865P 010 7865P 011 14 3 4 ID SS Flex 24 Long 7865P 018 6 Adapter 1 x 1 7865P 012 15 SS Gas Flex 18 Long 7865P 015 7865P 016 7 Adapter 3 4 x 3 4 7865P 013 16 Condensate Hose 7855P 089 8 Adapter 3 4 x 1 2 7865P 019 17 Left Side Panel Floor Stand 7865P 007 7865P 0...

Page 79: ...earing the listing marks of the American Society of Mechanical Engineers ASME installed with the appliance assembly in accordance with federal state and local codes 2 Maintain the appliance in accordance with the maintenance procedure listed in the manufacturer s provided instructions Preventive maintenance can help avoid any unnecessary breakdown of the appliance and keep it running at optimum ef...

Page 80: ...nghouse and will not be returned even if credit is denied If all warranty conditions are satisfied Westinghouse will provide replacement components to the retailer For questions about the coverage of this warranty please contact Westinghouse at the following phone number 1 774 417 6000 SERVICE LABOR AND SHIPPING COSTS Except when specifically prohibited by the applicable state law the Owner and no...

Page 81: ...whl 648 Rev 001 Rel 003 Date 10 8 19 81 Notes ...

Page 82: ...whl 648 Rev 001 Rel 003 Date 10 8 19 82 This Page Intentionally Left Blank ...

Page 83: ...whl 648 Rev 001 Rel 003 Date 10 8 19 83 This Page Intentionally Left Blank ...

Page 84: ...ame Date of Installation Installation Address Product Name Serial Number s Comments Installer s Code Name Installers Phone Number Signed by Installer Signed by Customer Installation Notes IMPORTANT Customer Please only sign after the installer has fully reviewed the installation safety proper operation and maintenance of the system If the system has any problems please call the installer If you ar...

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