A.O. Smith XB-1000 User Manual Download Page 50

Page: 50 / 50

25589 Highway 1, McBee, SC 29101

Technical Support: 800-527-1953 • Parts: 800-433-2545 • Fax: 800-644-9306

www.hotwater.com

Summary of Contents for XB-1000

Page 1: ...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 ap...

Page 2: ...hanger Maintenance 46 Handling Ceramic Fiber Materials 47 Replacement Parts 47 NOTES 48 LIMITED WARRANTY 49 TABLE OF CONTENTS TABLE OF CONTENTS 2 SAFE INSTALLATION USE AND SERVICE 3 APPROVALS 3 GENERA...

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: ...etup and instructions before lighting Failure to implement the proper setup will result in improper and inefficient operation of the appliance resulting in production of increased levels of carbon mon...

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: ...ion circulation pump control fan control boiler control sequencing and electric ignition function It will also provide status and error reporting Figure 1 BURNER Control System SPARK IGNITER The spark...

Page 7: ...E 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 t...

Page 8: ...s drain valve by turning handle clockwise 2 Open a nearby hot water faucet to permit the air to escape 3 Fully open the cold water inlet pipe valve allowing the boiler and piping to be filled 4 Close...

Page 9: ...a local code or state law requiring a specific temperature water at the hot water tap then you must take special precautions In addition to using the lowest possible temperature setting that satisfie...

Page 10: ...10 LIGHTING AND OPERATING INSTRUCTIONS...

Page 11: ...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 12: ...M 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 cap on the gas regulator...

Page 13: ...tion with the primary system heat loop Priority assignment to each heat loop can be configured to specify which loop gets serviced first CONTROL SYSTEM Burner Control System Figure 15 R7910A1138 contr...

Page 14: ...after programmed number of retry attempts d Main valve terminal is energized e Internal system fault occurred Communications and displays Two modes of communications are available to the R7910 1 The...

Page 15: ...16 At the end of the pump overrun time the pump will be switched off 6 MAIN FLAME ESTABLISHING PERIOD MFEP a Lockout Interlock opens if enabled b Pilot valve terminal is not energized c Main valve ter...

Page 16: ...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 17: ...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 18: ...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 19: ...Function see Figure 20 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 each...

Page 20: ...20 Figure 21 s7999B display page flow...

Page 21: ...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 22 is displayed when the S7999B disp...

Page 22: ...ord 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 The en...

Page 23: ...of all 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...

Page 24: ...ontrol Alert Log DATA COMMENT Alert Line Set by display Alert Code Unique Code defining which fault occured Description Alert description History Button The History button on the Home page serves not...

Page 25: ...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 26: ...unciation information and switch between hydronic heating loops Central Heat and Domestic Hot Water as shown in Figure 37 If a password is required to change any of the settings on this page the user...

Page 27: ...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 28: ...A O Smith Each functional group is displayed 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 func...

Page 29: ...tput H 6 Internal fault Invalid 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...

Page 30: ...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 31: ...nd 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 lim...

Page 32: ...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 33: ...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 34: ...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 35: ...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 36: ...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 37: ...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 38: ...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 39: ...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 40: ...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 41: ...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 42: ...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 43: ...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 44: ...eration during initial ignition operation and extinction Cause no excessive lifting of flame from burner ports MAINTENANCE PROCEDURES Maintenance schedules Yearly procedures for Qualified Service Agen...

Page 45: ...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 46: ...condensate 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 i...

Page 47: ...fiber materials Removal of combustion chamber lining The combustion chamber insulation in this appliance contains ceramic fiber material Ceramic fibers can be converted to cristobalite in very high t...

Page 48: ...48 NOTES...

Page 49: ...er under state 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 warrant y lasts so the...

Page 50: ...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, User Manual

Search results

Summary of Contents for XB-1000

Reviews:

Related manuals for XB-1000

Brands by name

Popular brands