A.O. Smith XB-1000 Instruction Manual Download Page 11

Page: 11 / 83

FIGURE 4. DOUBLE HEAT EXCHANGER BOILER COMPONENTS

Summary of Contents for XB-1000

Page 1: ...r 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...

Page 2: ...nstallation Considerations 25 Venting Supports 27 CONDENSATE DISPOSAL 37 GAS SUPPLY CONNECTIONS 38 BOILER START UP AND OPERATIONS 40 LIGHTING AND OPERATING INSTRUCTIONS 42 CONTROL SYSTEM 45 Burner Con...

Page 3: ...rt symbol indicates a potentially hazardous situation which if not avoided could result in property damage All safety messages will generally tell you about the type of hazard what can happen if you d...

Page 4: ...re different from natural gas models Anatural gas boiler will not function safely on LP gas and no attempt should be made to convert a boiler from natural gas to LP gas LP gas must be used with great...

Page 5: ...on Institute INTRODUCTION QUALIFICATIONS QUALIFIED INSTALLER OR SERVICE AGENCY Installation and service of this boiler requires ability equivalent to that of a Qualified Agency as defined by ANSI belo...

Page 6: ...7 D 37 940 38 965 37 940 E 23 584 23 584 24 610 F 9 229 9 229 9 229 G 34 864 34 864 34 864 H 44 1118 45 1143 45 1143 J 6 152 6 152 6 152 K 11 279 11 279 11 279 L 12 305 11 279 12 305 Table 2 OPERATING...

Page 7: ...50 100 56 120 67 140 78 XW 1000 920 000 854 680 GPH 2 593 1 728 1 482 1 296 1 152 1 037 864 741 LPH 9 815 6 543 5 608 4 907 4 362 3 926 3 272 2 804 XW 1300 1 300 000 1 207 700 GPH 3 664 2 442 2 094 1...

Page 8: ...of the building and nothing need be added for normal piping and pickup Ratings are based on a piping and pickup allowance of 1 15 3 Ratings have been confirmed by the Hydronics Institute Section of AH...

Page 9: ...P M 9 9 4 6 2 4 9 9 2 4 XB 1700 1 700 000 1 581 000 GPM 156 104 78 156 78 LPM 592 395 296 592 296 P FT 35 14 8 35 8 P M 10 7 4 3 2 4 10 7 2 4 XB 2000 2 000 000 1 860 000 GPM 184 123 92 184 92 LPM 696...

Page 10: ...10 FEATURES AND COMPONENTS Figure 3 SINGLE HEAT EXCHANGER BOILER COMPONENTS...

Page 11: ...11 Figure 4 DOUBLE HEAT EXCHANGER BOILER COMPONENTS...

Page 12: ...venturi and blower are used for modulating premix appliances 19 Heat exchanger access covers Allows access to the combustion side of the heat exchanger coils 20 High gas pressure switch Switch provide...

Page 13: ...ion circulation pump control fan control boiler control sequencing and electric ignition function It will also provide status and error reporting Figure 5 BURNER CONTROL SYSTEM SPARK IGNITER The spark...

Page 14: ...URE SENSORS All models have two inlet and two outlet temperature sensors for each heat exchanger factory installed to monitor the water temperature entering and leaving the boiler The Inlet Probe is a...

Page 15: ...g is not possible with a well pump system High point air venting is essential If the system is of the open type a pressure reducing valve will not be required as the water supply to the system will be...

Page 16: ...to heat exchanger failure All hot water heating systems should be completely flushed with a grease removing solution to assure trouble free opera tion Pipe joint compounds soldering paste grease on t...

Page 17: ...have a temperature rating of 210 F 99 C a pressure rating not exceeding lowest rated working pressure of any system compo nent and a discharge capacity exceeding total input of water boilers supply in...

Page 18: ...the National Fuel Gas Code ANSI Z223 1 NFPA 54 or the Natural Gas and Propane Installation Code CAN CSA B149 1 Size of gas supply piping may be larger than heater connection on installations where a s...

Page 19: ...are correct and that an adequate ground connection is present by performing the three voltage tests below See Figure 14 for wiring references Confirm RMS voltage between H and GND 108 VAC minimum 132...

Page 20: ...3 749 3 192 2 841 2 577 2 372 2 197 2 109 1 962 1 757 1 611 1 464 1 347 Table 11 SUGGESTED PIPE SIZE FOR MULTIPLE GAS APPLIANCES PROPANE GAS Nominal Maximum Capacity of Pipe in BTU hr and kW for Gas P...

Page 21: ...em for proper size and horizontal pitch and determine there is no blockage or restriction leakage corrosion and deficiencies which could cause an unsafe condition 3 In so far as it is practical close...

Page 22: ...ilation and dilution of flue gases However in buildings of unusually tight construction for example weather stripping heavily insulated caulked vapor barrier etc additional air must be provided using...

Page 23: ...grille design and free area are not known it shall be assumed that wood louvers will have 25 free area and metal louvers and grilles will have 75 free area Non motorized louvers and grilles shall be f...

Page 24: ...nimum free area of 1 square inch per 1 000 Btu hr 1100 mm2 per kW of the aggregate input rating of all appliances installed in the enclosure Each opening shall not be less than 100 square inches 645 c...

Page 25: ...specified in this manual to make the vent connections Failure to follow this warning could result in fire personal injury or death Note Make sure that for PVC venting installation the first 10 feet of...

Page 26: ...oper volume Failure to properly seal all joints and seams may result in flue gas recirculation spillage of flue products and carbon monoxide emissions causing severe personal injury or death AIR INLET...

Page 27: ...ns specified by the instruction sheet provided in the kit The following are requirements for the Air Intake Terminal AIT 1 The Air Intake System AIS must ter minate with the venting equipment pro vide...

Page 28: ...ELS XB XW VENT KIT NUMBERS RAIN CAP 1000 320884 000 1300 320884 001 1700 320884 001 2000 320884 001 2600 320884 001 3400 320884 002 MODELS XB XW VENT KIT NUMBERS TEE 1000 321765 000 1300 321765 001 17...

Page 29: ...321765 001 321764 000 1700 321765 001 321764 001 2000 321765 001 321764 001 2600 321765 001 321764 001 3400 321765 002 321764 002 MODELS XB XW VENT KIT NUMBERS RAIN CAP AIR INTAKE KIT NUMBERS ELBOW 1...

Page 30: ...320884 000 321764 000 1300 320884 001 321764 000 1700 320884 001 321764 001 2000 320884 001 321764 001 2600 320884 001 321764 001 3400 320884 002 321764 002 MODELS XB XW VENT KIT NUMBERS TEE AIR INTA...

Page 31: ...nlet into building or combustion air inlet to any other appliance 6 inches 15 cm for appliances up to 10 000 Btu hr 3 kW 12 inches 30 cm for appliances between 10 000 Btu hr 3 kW and 100 000 Btu hr 30...

Page 32: ...nches 15 cm for appliances up to 10 000 Btu hr 3 kW 9 inches 23 cm for appliances between 10 000 Btu hr 3 kW and 50 000 Btu hr 15 kW 12 inches 30 cm for appliances above 50 000 Btu hr 15 kW D Vertical...

Page 33: ...he horizontally vented gas fueled heating appliance or equipment The sign should read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS INSPEC...

Page 34: ...and air inlet terminations must terminate in the same pressure zone Do not terminate above any door or window where condensate can freeze causing ice formations Locate or monitor the vent to prevent...

Page 35: ...to buildup of leaves or sediment and also not blocked or restricted by snow accumulation 6 If installing both intake air and vent piping in a Direct Vent configuration vertically through the roof ens...

Page 36: ...TER INCH AIR INTAKE MIN LENGTH FT AIR INTAKE MAX LENGTH FT VENT DIAMETER INCH VENT MIN LENGTH FT VENT MAX LENGTH FT XP 1000 6 12 100 6 12 100 XP 1300 6 12 100 8 12 100 XP 1700 8 12 100 8 12 100 XP 200...

Page 37: ...y installed condensate trap Install a commercially available neutralizing kit if required by the local codes The boiler is factory fitted with a 24V condensate trap connected to the controller For saf...

Page 38: ...nal supply pressure setting of 7 inches w c 1 7 kPa while the boiler is operating is recommended and will generally provide good boiler operation Some addition adjustment maybe required later to maint...

Page 39: ...r the manometer tubing Place the tubing of the manometer over the tap once the 1 8 fitting is installed 4 Slowly turn on the gas supply 5 Ensure inlet pressure is within specified range 6 If the gas p...

Page 40: ...to purge system of air Provisions should be made to permit manual venting of radiators or convectors FILLING HOT WATER SUPPLY BOILER INSTALLATION 1 Close the system s drain valve by turning handle clo...

Page 41: ...isfy space heating clothes washing dish washing and other sanitizing needs can scald and permanently injure you upon contact Some people are more likely to be permanently injured by hot water than oth...

Page 42: ...42 LIGHTING AND OPERATING INSTRUCTIONS...

Page 43: ...d gas air control and gas safety shut off control valves The valve functions in parallel with the variable speed combustion blower to supply the correct gas air ratio for optimum performance and effic...

Page 44: ...the Low Firing Rate RPM as described below Check combustion readings using a combustion analyzer If combustion readings are not in accordance with the chart shown below adjust as follows remove the c...

Page 45: ...d electric ignition function It will also provide boiler status and error reporting Multiple boilers can be joined together to heat a system instead of a single larger burner or boiler Using boilers i...

Page 46: ...Pilot Valve terminal is not energized c No flame is present at the end of the PFEP or after programmed number of retry attempts d Main valve terminal is energized e Internal system fault occurred COMM...

Page 47: ...complete 14 A new CH request is blocked for the forced off time set by the Anti Short Cycle if enabled 15 The pump stays on during the pump overrun time if enabled 16 At the end of the pump overrun ti...

Page 48: ...1 LL master does not prevent it and more important 2 It will not confuse the LL master because it is implemented as a state machine that is in only one state at a time DOMESTIC HOT WATER Start up sequ...

Page 49: ...ntime or Use Last If one or more Control Systems are in the Use First category then one of these the one with the lowest sequence number will always be the first boiler to fire If there is no Control...

Page 50: ...NS 1 Electrical Ratings 12 VDC input maximum of 500 mA current drain Included Power Supply for S7999B Inputs 85 to 264 VAC 47 to 63 Hz 120 to 370 VDC Output 12 VDC 0 to 2 1 A Power 25 W 2 Operating Te...

Page 51: ...ired Function see Figure 53 The page descriptions are provided below so that you can understand the purpose of each and view the selections parameters and information that is available or required on...

Page 52: ...52 Figure 53 S7999B DISPLAY PAGE FLOW...

Page 53: ...ters The parameter name is displayed on the left and the current setting is displayed in the text box on the right STATUS OR HOME PAGE A status summary page Figure 54 is displayed when the S7999B disp...

Page 54: ...password Three levels of access to Burner Control parameters are permitted Each access level has defined rights when interfacing with configuration and status parameters within the controls End user T...

Page 55: ...ll parameters in each safety block must be verified to save them in the control When the installer is done changing safety parameters pressing the Verify button on the configuration screen begins the...

Page 56: ...time when the alert occurred refer to Table 22 DATA COMMENT Alert Line Set by display Alert Code Unique Code defining which fault occured Description Alert description HISTORY BUTTON The History butt...

Page 57: ...the history page lockout history and alert log The entire 15 fault code history is displayed in a scrollable list with the most recent fault displayed first followed by the next most recent fault Sum...

Page 58: ...nciation information and switch between hydronic heating loops Central Heat and Domestic Hot Water as shown in Figure 69 If a password is required to change any of the settings on this page the user c...

Page 59: ...al I O status of the Burner Control A snapshot of the diagnostic status is displayed and updated once per second as it changes in the control The digital I O data is displayed as LEDs that are either...

Page 60: ...ayed on the Configuration menu page Parameters in functional groups that are not applicable for the installation can be ignored In some cases features in a functional group are disabled by default and...

Page 61: ...d processor clock H 7 Internal fault Safety relay drive error H 8 Internal fault Zero crossing not detected H 9 Internal fault Flame bias out of range H 10 Internal fault Invalid Burner control state...

Page 62: ...not match application s model ID Contact the service professional L 55 Application configuration data block CRC errors Contact the service professional L 56 57 RESERVED 58 Internal fault HFS shorted t...

Page 63: ...and Outlet sensors and pump circuits for proper operation 2 Recheck the Delta T Limit to confirm proper setting 3 If previous steps are correct and fault persists replace the module H or L 82 Stack li...

Page 64: ...at the flame detector is wired to the correct terminal 3 Make sure the F G wires are protected from stray noise pickup 4 Reset and sequence the module if code reappears replace the flame detector 5 Re...

Page 65: ...ignition H or L 131 Fan movement detected during standby H 132 Fan speed failed during run H 133 135 RESERVED Start Check Faults 136 Interrupted Airflow Switch failed to close 1 Check wiring and corr...

Page 66: ...present If not the lockout switch is defective and needs replacing 5 If the fault persists replace the relay module H or L 153 Combustion pressure Off H or L 154 Purge Fan switch On OEM Specific 1 Pu...

Page 67: ...ting L 186 Invalid Delta T limit response setting L 187 Invalid DHW high limit enable setting L 188 Invalid DHW high limit response setting L 189 Invalid Flame sensor type setting L 190 Invalid interr...

Page 68: ...nvalid Outlet high limit enable setting Contact the service professional L 235 Invalid Outlet connector type setting Contact the service professional L 236 Invalid Inlet connector type setting Contact...

Page 69: ...overridden due to sensor fault 70 No demand source was set due to demand priority conflicts 71 73 RESERVED CODE DESCRIPTION EE Management Faults 0 None No alert 1 Alert PCB was restored from factory d...

Page 70: ...source parameter was invalid 151 Minimum water temperature parameter was greater than setpoint CODE DESCRIPTION Fan Parameter Errors 74 Periodic Forced Recycle 75 Absolute max fan speed was out of ra...

Page 71: ...225 226 RESERVED 227 DHW priority override time was not derated due to invalid outdoor temperature 228 Warm weather shutdown was not checked due to invalid outdoor temperature 229 Lead Lag slave commu...

Page 72: ...Abnormal Recycle Ignition failed due to interrupted air flow switch was off 303 Abnormal Recycle ILK off during Drive to Purge Rate CODE DESCRIPTION 231 Lead Lag CH setpoint was invalid 232 Lead Lag...

Page 73: ...cle Hardware flame bias dynamic low 380 Abnormal Recycle Fan Speed Not Proven 381 Abnormal Recycle Fan Speed Range Low CODE DESCRIPTION 304 Abnormal Recycle ILK off during Measured Purge Time 305 Abno...

Page 74: ...Mix S10 J10 7 temperature was invalid 522 Mix outlet temperature was invalid 523 Mix inlet temperature was invalid 524 Mix S5 J8 11 temperature was invalid 525 Mix modulation sensor type was invalid...

Page 75: ...alid 541 Delta T exchanger outlet enable was invalid 542 Delta T inlet exchanger enable was invalid 543 Delta T inlet outlet degrees was out of range 544 Delta T exchanger outlet degrees was out of ra...

Page 76: ...operation during initial ignition operation and extinction Cause no excessive lifting of flame from burner ports MAINTENANCE PROCEDURES MAINTENANCE SCHEDULES Yearly procedures for Service Technician...

Page 77: ...main burners from unit 3 Check that burner ports are free of foreign matter 4 Clean burner with vacuum cleaner Do not distort burner ports 5 Reinstall burners in unit Ensure that all the screws on the...

Page 78: ...ondensate drains and tubes at least once a month and insure they will allow the free flow of condensate at all times The system must be inspected more frequently in cold weather if the drain system is...

Page 79: ...n the NIOSH website at http www cdc gov niosh homepage html NIOSH approved respirators manufacturers and phone numbers are also listed on this website Wear long sleeved loose fitting clothing gloves a...

Page 80: ...RIMARY SECONDARY HYDRONIC PIPING SYSTEM LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE TEMPERATURE GAGE WATER FLOW...

Page 81: ...the storage tank Applications in excess of these recommendations shall require a licensed engineer for design assistance XP BOILERS 1000 3400 ONE BOILER VERTICAL STORAGE TANK RECOVERY SYSTEM ONE TEMPE...

Page 82: ...te or provincial law are limited to one 1 year duration for the boiler or any of its parts Some states and provinces do not allow limitations on how long an implied warranty lasts so the above limitat...

Page 83: ...83 25589 Highway 1 McBee SC 29101 Technical Support 800 527 1953 Parts 800 433 2545 Fax 800 644 9306 www hotwater com...

Search results

Summary of Contents for XB-1000

Reviews:

Related manuals for XB-1000

Brands by name

Popular brands

A.O. Smith XB-1000, Instruction Manual

Search results

Summary of Contents for XB-1000

Reviews:

Related manuals for XB-1000

Brands by name

Popular brands