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Страница 1: ...Table Of Contents Model WB Electric Boilers Hot Water Operation and Maintenance Manual 750 136 07 2018...

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Страница 3: ...for replacement manuals to your local Cleaver Brooks authorized representative Manual Part No 750 136 07 2018 Printed in U S A Cleaver Brooks 2018 CLEAVER BROOKS Model WB Electric Boilers Hot Water Op...

Страница 4: ...nnel of the responsibility for proper operation or the application of timely preventive mainte nance It is recommended that a boiler room log or other permanent record be maintained Recordings of dail...

Страница 5: ...ng 2 2 2 4 Heat Pump Systems with High Flow Rates 2 2 2 5 Electrical 2 3 CHAPTER 3 Pre Start Preparation 3 1 3 1 Inspection 3 1 3 2 Boiler and System Cleaning 3 2 3 3 Boiler Water Treatment 3 4 CHAPTE...

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Страница 7: ...autions may result in damage to equipment serious personal injury or death The equipment should be operated and maintained only by personnel who have read this manual and who have a working knowledge...

Страница 8: ...controls elements fuses contactors relief valve drain valve etc wired tested and ready for installation The vessel construction complies with the ASME Boiler Pressure Vessel Code Section IV and is su...

Страница 9: ...ic resetting and man ual resetting high temperature cutoff These are normally set at 235 F and 240 F respectively unless otherwise specified On smaller boilers one auto resetting temperature cutoff is...

Страница 10: ...cal remote modulation switch 18 SCR controller 19 Feedwater valve 20 Other misc options Your Dimension Drawings DD and Wiring Diagrams WD will show the optional equipment on your boiler 1 4 Principles...

Страница 11: ...lements Controls in the boiler automatically select the number of heating element groups or steps needed to maintain the water temperature while supplying the system s heat demands NOTE Although circu...

Страница 12: ...General Description 1 6 750 136 Model WB Electric Boiler Manual...

Страница 13: ...lation Position the boiler to provide adequate clearance on all sides for necessary access when operating and servicing the boiler Installation should be performed only by qualified personnel who are...

Страница 14: ...the total water volume of the system inclusive of the boiler vessel radiators coils and all piping The expansion tank may be connected to the fitting provided on top of the boiler vessel If another lo...

Страница 15: ...ar with local codes and inspection procedures Electric hot water boilers are typically designed for top connection to the main supply lugs and are supplied with solderless wire connectors suitable for...

Страница 16: ...with the boiler for the number and rating of supply circuits required by the boiler 4 Refer to your local electrical code for proper wire and conduit sizes for these ratings 5 Install wiring from the...

Страница 17: ...ic wire size and type often located on component s factory label Recommended torque settings Electric boilers main control panel Power distribution blocks 6AWG load side 45 in lbs Fuse blocks for cont...

Страница 18: ...Installation Instructions 2 6 750 136 Model WB Electric Boiler Manual...

Страница 19: ...ghly cleaned dried and checked for loose connections 2 Inspect all contactors fuse bases and wire bundles for stray or loose metal objects screws bolts metal shavings knockout slugs etc that may lodge...

Страница 20: ...es the sup port element then may be put in operation by replacing the fuses after the elements have been rechecked with an ohmmeter 3 2 Boiler and System Cleaning One important phase in completing hot...

Страница 21: ...ater in the system is acidic and corrosive The appearance of dirty foam or scum lines on the surface In some cases there are sufficient quantities of such materials to break down chemically during the...

Страница 22: ...er quality parameters should be maintained These recommended guidelines do not include all dissolved minerals For more information about maintaining water quality contact your Cleaver Brooks local rep...

Страница 23: ...ways the center of the proportioning range Proportional Temperature Control Setpoint This is the center point of the proportional range Range adjustment The proportional temperature control may be adj...

Страница 24: ...gh temp light should light Then return the setting to the desired limit setting 6 Monitor the temperature rise through the boiler If a bypass piping arrangement is used adjust the flow through the boi...

Страница 25: ...Remove On Off Temperature Control cover to adjust for Two Stage Heat 1 Set ST1 and ST2 switches to HEAT 2 Set interstage INTER and differential DIFF1 DIFF2 to desired settings 3 Position the setpoint...

Страница 26: ...contacts or inoperative 120 volt coils Inspect for blown fuses or discoloration of fuse clips which would indicate a loose fit Correct malfunctions as required If all the elements have been operating...

Страница 27: ...wet side 6 Inspect and clean the thread and the seat of the steel flange where the new ferrules will seal If seats are pit ted or rusted it may not be possible to seal the new elements therefore a ne...

Страница 28: ...ment flange bolts to 90 to 100 ft lbs 11 When the boiler is filled and pressurized inspect for leaks If leaks are detected around the brass ferrules tighten the nuts in 5 ft lb increments up to a maxi...

Страница 29: ...supply not on Control transformer fuse is blown Control transformer inoperative Pilot light burned out Energize power supply Check for loose connections then replace fuse Check for proper wiring loos...

Страница 30: ...pilot light s burned out Step control fuse blown Pressure temperature control improperly wired to step control Replace pilot light s Replace fuse Check that wiring is per control literature and per u...

Страница 31: ...iler serial number displayed on the boiler name plate on your order The order should state Cleaver Brooks part number name and description of the required part quantity required method of shipment dat...

Страница 32: ...3 Pole 60A 600V 832 01568 000 Fuse Cartridge Class T 30A 600V 832 01371 000 Fuse Cartridge Class T 50A 600V 832 01376 000 Fuse Cartridge Class T 60A 600V Part Number Description 817 05070 000 Operatin...

Страница 33: ...53 000 and 833 03554 000 17 18 Steps Master and Slave 833 03553 000 and 833 03555 000 19 20 Steps Master and Slave 833 03553 000 and 833 03556 000 21 22 Steps Master and Slave 833 03553 000 and 833 03...

Страница 34: ...0 Toggle Momentary SPST NO 836 00211 000 Toggle DPDT Part Number Description 881 00249 000 White Neon Type 881 00250 000 Amber Neon Type 881 00251 000 Red Neon Type Part Number Description 997 10943 0...

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