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WHL-053 Rev. 00 Rel. 003 Date 7.21.17

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WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal 

injury or death.

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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

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Do not try to light any appliance.

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Do not touch any electrical switch; do not use any phone in your building.

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Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

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If you cannot reach your gas supplier, call the fire department.

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Installation and service must be provided by a qualified installer, service agency or the gas supplier.

Improper installation, adjustment, alteration, service, or maintenance can cause injury, property damage, or death. Refer to this 

manual. Installation and service must be performed by a qualified installer, service agency, or gas supplier.

Summary of Contents for 220VWH

Page 1: ...changes or updates without notice and will not be held liable for typographical errors in literature NOTETO CONSUMER PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE WHL 053 Rev 00 Rel 003 Date 7 21...

Page 2: ...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...

Page 3: ...th 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 C...

Page 4: ...oiler Water 5 E Freeze Protection 5 F Water Temperature Adjustment 6 G High Elevation Installations 6 Part 2 Before You Start 7 A What s in the Box 8 B How the Boiler Operates 8 C Optional Equipment 8...

Page 5: ...to heat potable water ONLY Using this boiler to heat non potable fluid WILL VOID product warranty and could result in property damage personal injury or death Do not use this boiler for anything othe...

Page 6: ...emperature 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 Less than 3 seconds 150oF About 1 1...

Page 7: ...torage Tanks Contact for Available Storage Tanks Contact for Available Storage Tanks 40o 635 397 414 438 866 529 546 570 1152 693 709 733 50o 508 406 427 457 693 538 559 589 922 701 722 752 60o 424 41...

Page 8: ...rt included with the boiler Temperature and Pressure Gauge 7250P 499 Pressure Relief Valve 7450P 254 Intake PVC Tee with Screens Exhaust PVC Coupling with Screens Outlet Combination Fitting 220 Model...

Page 9: ...or greater such as boiler flue pipes space heaters etc may damage plastic components of the boiler as well as plastic vent pipe materials Such damages ARE NOT covered by warranty It is recommended to...

Page 10: ...with other appliances Failure to comply with the above warnings could result in substantial property damage severe personal injury or death Precautions If the boiler is located in a residential garag...

Page 11: ...liances installed in that space Rooms connected directly to this space through openings not furnished with doors are considered part of the space See Venting Section for details Confined space is spac...

Page 12: ...l pitch to determine if there is blockage leakage corrosion or other deficiencies that could cause an unsafe condition 3 If practical close all building doors windows and doors between the space in wh...

Page 13: ...may be required If you suspect that your water is contaminated in any way discontinue use of the appliance and contact an authorized technician or licensed professional Contaminant Maximum Allowable L...

Page 14: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 14 Figure 4 Boiler Dimensions NOTE All Dimensions Are Approximate VWH in Model Number Denotes Volume Water Heater Model...

Page 15: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 15 Figure 5 Boiler Dimensions NOTE All Dimensions Are Approximate VWH in Model Number Denotes Volume Water Heater Model...

Page 16: ...severe burns or property damage should the relief valve discharge Discharge line must be as short as possible and the same size as the valve discharge connection throughout its entire length Discharg...

Page 17: ...uires the circulator to run continuously Water hardness must be between 5 and 7 grains Hardness above 7 grains will damage the heat exchanger and shorten the service life of the boiler DO NOT use the...

Page 18: ...a water tempering or mixing valve when raising tank temperature to lessen the chance of scalds Consult codes for conformance Failure to install a temperature limiting or mixing valve and follow these...

Page 19: ...ction Ft Flow Rate GPM Friction Ft Flow Rate GPM 220 19 22 13 18 3 8 14 6 299 301 29 29 18 24 5 13 20 399 39 39 19 32 5 26 Table 10 Temperature Rise Friction Ft and Flow Rate The chart below represent...

Page 20: ...sized for the system and friction loss 4 Install an expansion tank on the system supply Consult the expansion tank manufacturer s instruction manual see Part 4 Section D for water volume for specific...

Page 21: ...nstall vacuum relief valve in accordance with local code requirements 9 All multiple boilers and multiple storage tanks must be installed with reverse return piping as shown 10 Expansion tank must be...

Page 22: ...a minimum of 12 diameters of straight pipe upstream of all circulators and check valves 8 Install vacuum relief valve in accordance with local code requirements 9 All multiple boilers and multiple sto...

Page 23: ...OTE To avoid contamination often contained in indoor air it is best to pipe all intake combustion air directly to the outdoors NOTE If exhaust vent pipe system passes through an unheated space such as...

Page 24: ...stems or unlisted pipe fittings Cellular foam core piping may be used on air inlet piping only DO NOT mix components from different venting systems without proper adapters The vent system could fail c...

Page 25: ...t 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 locate...

Page 26: ...from joints and fittings 3 When using PVC or CPVC pipe all joints must be properly cleaned primed and cemented Use only cement and primer approved for use with the pipe material Cement must conform t...

Page 27: ...s obtained from a bedroom or bathroom Signage Whenever any through the wall horizontal or sidewall vent is installed less than seven feet above the finished grade a metal or plastic identification pla...

Page 28: ...with Concentric Vent Kit Figure 14 Venting with Optional Kits NOT INCLUDED WITH THE BOILER NOTE These drawings are meant to demonstrate system venting only The installer is responsible for all equipme...

Page 29: ...pe Venting must be readily accessible for visual inspection from the first three feet from the boiler NOTE These drawings are meant to demonstrate system venting only The installer is responsible for...

Page 30: ...dequate combustion and ventilating air NOTE To prevent combustion air contamination see Table 3 Combustion air from the indoor space can be used if the space has adequate area or when air is provided...

Page 31: ...O NOT PLACE DRYER NEAR WATER HEATER OR BOILER Figure 18 Do Not Place Appliance Near Dryer BOILER OR HEATER INDOOR COMBUSTION AIR SINGLE PIPE OUTDOOR COMBUSTION AIR SINGLE PIPE BOILER OR HEATER Figure...

Page 32: ...ilers and furnaces The condensate pump should have an overflow switch to prevent property damage from spillage Condensate from the boiler will be slightly acidic pH from 3 2 to 4 5 Install a neutraliz...

Page 33: ...uilding management system if the boiler goes into a lockout condition The circuit between the ALARM COM and NC terminals is closed during normal F Low Voltage Connections for Standard Boiler 1 All low...

Page 34: ...a neat installation Do not run unprotected cables across the floor where they may become wet or damaged Avoid running communication cables parallel and close to or against high voltage 120 volt or gre...

Page 35: ...tting the pump will decrease speed and flow to compensate NOTE This feature may be used in Primary Secondary piping arrangements ONLY Variable Speed Pumping Wiring 1 Connect the boiler pump as shown i...

Page 36: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 36 Figure 25 Internal Connection Diagram...

Page 37: ...g compound must be approved for gas connections Care must be taken when applying compound to prevent blockage or obstruction of gas flow which may affect the operation of the unit Support gas supply p...

Page 38: ...t be sized correctly for the connected boiler firing rates Consult with the flex line supplier to assure the line size is adequate for the job Follow local codes for proper installation and service re...

Page 39: ...leading to fire explosion severe personal injury or death Adjustments to the throttle screw or offset may only be made by a qualified gas technician using a calibrated combustion analyzer capable of m...

Page 40: ...exhaust vent and intake piping for signs of deterioration from corrosion physical damage or sagging Verify exhaust vent and intake piping are intact and correctly installed per Venting Section and lo...

Page 41: ...system has its individual safety controls intact and operational even if the firing of the boiler is under control of the master boiler In the event that the system sensor fails all boilers in the sy...

Page 42: ...verify that the gas line and water lines are connected to boiler and fully purged If you smell gas STOP Follow the safety instructions listed in the first part of this section If you do not smell gas...

Page 43: ...s the tank thermostat is turned off so the boiler will remain idle to allow programming Screen Description ENTER MENU CODE 000 To access the boiler setting program press and hold ENTER for 4 seconds u...

Page 44: ...one or withVision 3 panel Select 928 BOILRS to establish a cascaded system Factory Default OFF Range OFF 928 BOILRS Function 24 Cascade Rotation CASCADE ROTATION 48 HOURS 24 Sets the amount of hours b...

Page 45: ...OA2 Offset O 10V B OUTPUT OFFSET 1 5 59 This value is added to the OFFSTATE VOLT OA2 value to determine the total voltage output required at the minimum case Factory Default 1 5 Range 0 0 to 9 9 Tabl...

Page 46: ...0V The top line displays the voltage on the optional input This voltage is only relevant if an external 0 10 volt signal is being used to control the boiler Press v once BUS COMM NO CONN This display...

Page 47: ...e bottom line will display the date and time that the fault occurred Table 28 Boiler Fault Screens Screen Description BLOCKING HISTORY 1 08 28 2009 Fr 5 19A This screen displays the most recent boiler...

Page 48: ...Fault Screens CASCADE VWH 0123 567 SYS PUMP ON 12 47P This screen displays information about cascade status The VWH in the center of the top line shows that cascade demand is coming from the tank sen...

Page 49: ...an 1 second If there is an error message displayed on the readout and the message LOCKOUT is not displayed and the FAULT light is not lit then the message is the result of a temporary condition and wi...

Page 50: ...and he pushes the RESET button on the display This situation is indicated by the red light on the display and the flashing word LOCKOUT During this lockout fault the pump will be on as indicated on t...

Page 51: ...tus menu and determining there is less than a 50 F rise from the return thermistor to the supply thermistor 3 Check the direction of flow on boiler circulator See Piping Details in this manual 4 Troub...

Page 52: ...heck the voltage on the red wire again If it is now between 24 40 volts replace the fan If it is still below 24 volts replace the boiler control board FLUE LIMIT F17 PUMP ON TIME F17 indicates the boi...

Page 53: ...the gas valve and must be manually reset 1 If an indicator light is illuminated investigate the source of the error for that particular switch 2 With boiler in service mode measure the gas pressure i...

Page 54: ...h the flue temperature displayed in the status menu inspect the wiring to the flue temperature sensor in the boiler and repair as necessary If the wiring is intact replace the flue sensor If the flue...

Page 55: ...y contaminated clothes separately from other clothing Rinse clothes washer thoroughly NIOSH stated First Aid Eye Irrigate immediately Breathing Fresh air B Combustion Chamber Coil Cleaning Instruction...

Page 56: ...water to remove debris from the trap NOTE Ensure the float moves freely within the trap If the float does not move DO NOT reinstall the trap 5 When the condensate trap is sufficiently clean reinstall...

Page 57: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 57 Figure 29 Condensate Detail...

Page 58: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 58 Figure 30 Combustion System Replacement Parts 220kBTU Model...

Page 59: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 59 Figure 31 Combustion System Replacement Parts 299 399kBTU Models...

Page 60: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 60 Figure 32 Replacement Parts All Models...

Page 61: ...2 2 3 P 0 5 4 7 8 S D R A O B C I N O R T C E L E W E R C S D A E H D A P 4 1 X 2 3 6 5 1 1 P 0 0 5 7 9 S P M A 3 6 D R A O B L O R T N O C E S U F 8 7 3 P 0 5 2 7 0 1 H C T I W S E R U S S E R P 0 5...

Page 62: ...r If necessary convert the boiler to the proper fuel type Locate the stickers in the appropriate locations on the boiler Verify combustion settings after gas conversion Carbon Dioxide CO2 High Fire CO...

Page 63: ...ation in uA d7 in Status Menu in Start Up Procedures Record high fire and low fire Clean probe with plumbers cloth to remove oxides Condensate 1st Year 2nd Year 3rd Year 4th Year Neutralizer Check con...

Page 64: ...maintenance procedure listed in the manufacturer s provided instructions Preventive maintenance can help avoid any unnecessary breakdown of the water heater and keep it running at optimum efficiency...

Page 65: ...se at the following phone number 1 774 417 6000 SERVICE LABOR AND SHIPPING COSTS This limited warranty does not extend to any shipping charges delivery expenses or administrative fees incurred by the...

Page 66: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 66 Maintenance Notes...

Page 67: ...e 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 Cust...

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