Bosch KM3211WH Installation & Owners Manual Download Page 47

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Hot-water feed route

KM3211WH

KM3211WH．

．

．KM3211WHQ

KM3211WHQ

Part Nos.

Part Names

Order Nos.

Q'ty

／

unit

Note

462

Water flow sensor SET1 DUV

DUVD018

For KM3211WHQ

428, 434 also replace

463

Magnetic sensor BWC

BWCD093

464

Magnetic sensor for circulation BWC

BWCD092

For KM3211WHQ

468

Freeze Protection Thermostat BVU

BVUH002

470

Conduit 86 DZT

DZTJ008

471

Waterproof cover CZL

CZLD041

472

Servo motor cable conduit (86) DZT

DZTJ009

475

Pump HK DHN

DHND026

For KM3211WHQ

428 also replace

476

Shut-off valve SET DSC

DSCD028

For KM3211WHQ

420 also replace

477

O-ring P14C

1326708

For KM3211WHQ

480

Water inlet pipe EAD

EADD001

For KM3211WHQ

481

Return pipe EAD

EADD006

For KM3211WHQ

482

Pump comes out of pipe EAD

EADD008

For KM3211WHQ

483

Dummy heater 240V DJW

DJWH004

For KM3211WH

Dummy heater 240V DJW

DJWH004

For KM3211WHQ

484

Heater fastener M AJB

AJBL002

For KM3211WH

Heater fastener M AJB

AJBL002

For KM3211WHQ

485

Freeze preventive heater2 DJW

DJWH002

For KM3211WHQ

506

Cross recessed round-head machine screw M4X8

For KM3211WHQ

SUS430

507

Cross recessed truss P TIGHT screw 4X10

SUS305

508

Cross recessed round-head P TIGHT screw 4X14

SUS305

509

Cross

＆

straight recessed round-head collar type3 S TIGHT tapping screw 4X8

SUS410

510

Cross

＆

straight recessed type3 S TIGHT tapping screw 4X8

SUS410

511

Cross recessed round-head P TIGHT screw 4X14

SUS410

512

Cross recessed round-head type3 EVERTIGHT tapping screw 4X8

For KM3211WHQ

SWRM chromate

Summary of Contents for KM3211WH

Page 1: ...to customer before leaving 4 customer This appliance must be installed in accordance with the manufacturer s installation instructions AS 5601 AS5601 NZ 5261 AS3500 4 2 and all Local Water Building and Gas fitting regulations Failure to install this appliance in accordance with these installation instructions may void warranty In the interest of continued product improvement Bosch reserves the rig...

Page 2: ...o remote controller case Running Hot Water 27 Preventing Damage from Freezing 28 When Unused for an Extended Period 29 Regular Maintenance 31 Troubleshooting 33 Follow up Service 37 Specifications 38 External Outfitting 39 Combustion Unit and Gas Route 41 Hot Water Feed Route 43 Electronic Controller 48 Remote Controller and Attached Set 50 Installation Guide 52 1 Installation Examples 52 2 Quick ...

Page 3: ...eater safely read this installation manual carefully and follow the installation instructions Caution WARNING If the information in this manual is not followed exactly a fire or explosion may result causing property damage personal injury or death This appliance must be installed in accordance with the manufactures installation instructions AG5601 AS3500 4 2 AS300 wiring regulations and all Local ...

Page 4: ...e someone is using the hot water Warning Important Safety Information 2 Contact a qualified service technician for any necessary repairs service or maintenance Do not allow small children to play unsupervised in the bathroom Do not allow small children to bathe unsupervised For Natural Gas 55 5 kW NG 250 MJ hr 135 W MAX 900kPa 0 68 kPa AC240V50Hz BOSCH MODEL GAS CONSUMPTION HEAT OUTPUT GAS TYPE WA...

Page 5: ...ot use combustible chemicals such as oil gasoline benzene etc in the vicinity of the heater or the exhaust vent terminal Unit Be sure to electrically ground the unit Do not touch the power cord with wet hands Keep power cord free of dust Do not use a broken or modified power cord Do not bind bend or stretch power cords Do not scratch modify or subject them to impact or force Do not use the water h...

Page 6: ...guration may be slightly different Main Unit Flue Collar Front Cover Air Inlet Water Supply Valve Gas Supply Valve Water Drain Valve with Water Filter Inside Water Inlet P32 Burner On Indicator Lit during combustion Blinks to indicate a problem P36 Eg KM3211WH KM3211WH KM3211WHQ KM3211WH shown pipe arrangement differs slightly on the KM3211WHQ model ...

Page 7: ...ins to scroll sideways As soon as the remote controller is used again the scrolling stops Current time when the clock is set the hot water tempera ture scrolls sideways This remote controller is basically used with KM3211WHQ When this is displayed circulation mode is on P15 and 19 Circulation mode Display Timer Display for Hot Water Blinking During circulation Lit Circulation timer is set Blinking...

Page 8: ...the temperature P24 The illustration below shows the remote controller display What is actually displayed depends on how the water heater is set Eg 40 C Error Display Error is displayed when a malfunction occurs P36 When this indicator is lit the hot water temperature can be set Priority Indicator This is displayed during burner on Burner On Indicator Waterproof Sub Remote Controller RCS3211 Optio...

Page 9: ... the following preparations Follow steps 1 through 4 1 Open the water supply valve Open a hot water fixture to confirm that water is available and then close the fixture again 3 Open the gas supply valve Hot water fixture 2 Turn on the power CLOSED 4 OPEN Eg KM3211WH ...

Page 10: ...ched for about 20 seconds the settings screen ends Eg AM 10 15 The time changes in 1 minute increments with each press on the button and then in 10 minute increments if the button is kept pressed down Eg 40 C In the event of a power cut or after disconnecting the power supply when the power is restored the clock on the display screen shows 0 00 so the clock needs to be re set Display detail Blinki...

Page 11: ...ially careful if using hot water after previously using water at 60 C or above to prevent scalding While the shower is being used no one other than the user should change the temperature the power switch must not be turned off when using sub remote controller WARNING WARNING This is to prevent scalding if the temperature rises Conversely if the temperature drops or the power switch is turned off t...

Page 12: ...r than the user should change the temperature the power switch must not be turned off when using sub remote controller WARNING This is to prevent scalding if the temperature rises Conversely if the temperature drops or the power switch is turned off the user may be upset when the water suddenly becomes much colder Here The ON OFF is lit When Circulation is on the symbol blinks and circulation mode...

Page 13: ...80 Set the maximum temperature to suit your own preference P20 and 21 Hot water temperatures are approximations and may differ from actual temperatures depending on external factors such as the season and length of piping involved When low temperatures are set for washing dishes etc if the ambient water temperature is already quite high it may be difficult to ensure the resultant water temperature...

Page 14: ...ater Display example Check When the bath is full turn off the taps Please set to the highest temperature when using thermostat controlled water mixing valves WARNING Check the bathwater temperature with your hand be fore getting into the bath To prevent scalding Preparation The ON OFF is lit When Circulation is on the symbol blinks and circulation mode starts automatically P15 ...

Page 15: ...ter will be at 60 C Blinking Check Hot water temperatures are approximations and may differ from actual temperatures depending on external factors such as the season and length of piping involved Circulation Operation When using RCM3211 Display of on the remote controller When reducing the temperature setting from very high during instant hot water operation be wary of the actual temperature To pr...

Page 16: ...culation stops until the ON OFF is turned On again or until the next timer setting 1 2 Suspension of Circulation When using RCM3211 Unlit Blinking Blinking The symbol is no longer displayed circulation mode stops Display of on the remote controller On this Display Operation Description When the hot water tank circulation system is used do not stop the circulation mode If you are unsure how to use ...

Page 17: ...n during that time Until the timer operation is canceled P19 circulation operates during the same period every day Timer Setting Period for Circulation 1 When using a hot water storage tank circulation system do not set the timer for instant hot water operation If you are unsure how to use such a system please contact the retailer Continued Press the button until the is set to AM 6 7 The ON OFF is...

Page 18: ...operation in the next run time period Circulation starts Circulation stops Circulation starts ON OFF automatically switches ON Circulation ends ON OFF will not be turned OFF automatically Continued When the operation switch is turned Off About 1min later the will not be displayed but it will have the memory of the timer setting Press the button several times until the is set to PM 8 9 Circulation ...

Page 19: ...displayed instantly Confirmation of timer setting Follow procedures 1 2 of Cancellation of timer operation and check the timer setting on the screen under procedure 3 Pressing the SET button or leaving it unattended for about 20 seconds finalizes the confirmation screen Modification of the timer setting Cancel the settings as per the following Cancellation of timer operation procedure and then re ...

Page 20: ...n is suitable for draining the unit P29 Stops draining the unit 48 C 40 C in 1 C increments 80 C Other Setting Options When using RCM3211 Draining the unit P29 Maximum tempera ture setting P13 Switching scroll display Scroll display P7 can be switched on yes or off no Draining the unit This is set to drain the unit On this Display in 5 C increments ...

Page 21: ...wer is switched Off again Completion of setting When the SET button is pressed or the console is left untouched for about 20 seconds the settings screen ends Repeat procedures 2 3 again to adjust other settings This may not be displayed depending on the installation conditions This is only used for installation and maintenance purposes so please do not touch Operation On this Display Modification ...

Page 22: ...s the ON OFF button for about five seconds Completion of setting Setting is possible regardless of whether the power switch is ON OFF The remote controller will emit a sound when any button is pushed This sound can be muted if it is desired Initial factory setting is with sound ...

Page 23: ...ally careful if using hot water after previously using water at 60 C or above to prevent scalding While the shower is being used no one other than the user should change the temperature the power switch must not be turned off when using sub remote controller WARNING WARNING This is to prevent scalding if the temperature rises Conversely if the temperature reduces or the power switch is turned off ...

Page 24: ... When using RCS3211 On this Display Operation Description While the shower is being used no one other than the user should change the temperature the power switch must not be turned off when using sub remote controller WARNING This is to prevent scalding if the temperature rises Conversely if the temperature reduces or the power switch is turned off the user may be upset when the water suddenly be...

Page 25: ...ng valves set the temperature on the remote controller to about 10 C higher than that required to ensure the appropriate temperature When setting high temperatures 60 80 C When a high temperature is set the readout on the right is shown Please check the temperature displayed before using any hot water Be especially careful using any hot water after any previous setting of between 60 80 C When sett...

Page 26: ...seconds Completion of setting Setting is possible regardless of whether the power switch is ON OFF The remote controller will emit a sound when any button is pushed This sound can be muted if it is desired Initial factory setting is with sound Priority Burner on Operation Description ...

Page 27: ... etc If the temperature is set at 75 C use thermostat controlled water mixing valves to prevent scalding when using other taps 1 2 Temperature adjustment for hot water supply No remote controller case 3 Turn off the hot water tap after use WARNING Whenever using hot water such as when using the shower first test the hot water temperature by hand To prevent scalding Operation Description Turn on ho...

Page 28: ...it from freezing Protect this plumbing with insulation If you are still worried that your heater will freeze contact the nearest Bosch Service Dealer When the temperature drops the freeze prevention heaters are automatically activated to keep the unit warm and prevent it from freezing Normal cold outside temperatures between 0 C 10 C with no wind The heater and piping can be damaged if cold temper...

Page 29: ...make sure that the power is plugged in 2 Open the hot water tap fully leave it in that position for at least one minute and then turn off the tap For conjunct setting Allow at least one minute per unit Error display 11 may appear on the remote controller but this is not an error Do not turn the power switch Off Manual draining Close the water supply valve 3 4 5 When the water is completely drained...

Page 30: ...re partially hidden behind the pipe insulation Water may not drain out fully even though the cleanout plugs are loosened depending on the pipe arrangement In this case fully remove the cleanout plugs Make sure not to mislay them When Unused for an Extended Period 2 KM3211WHQ 4 positions Position of the cleanout plugs KM3211WH 3 positions If the water heater will not be used for a long period of ti...

Page 31: ... The remote controller is water resistant but not water proof Keep it is dry as possible Caution Regular Maintenance 1 Inspection Once a month Check For laundry newspaper timber oil spray cans and other combustible materials P5 Equipment Remote Controller Wipe the surface with a wet cloth For abnormal sounds during operation For abnormalities in external appearance discoloration or flaws For water...

Page 32: ...ve the discharged water 1 Close the water supply valve 2 Open all hot water fixtures 3 Remove the inlet and outlet drain plugs about 1L will drain out 4 Take the water drain valve with water filter out of the inlet See illustration to right 5 Clean the water drain valve with water filter with a brush under running water 6 Replace the water drain valve with water filter Take care not to lose the pa...

Page 33: ... setting appropriate check remote controller If the supply water is at a high temperature you may need to increase the flow rate through the heater to get a low temperature out of it Hot water is not available at low temperatures Cold water comes out when the fixture is barely opened Only cold water is available at low flow rates The heater stops burning when the flow of hot water becomes less tha...

Page 34: ...e screen display changes and continuously scrolls sideways P7 20 21 The display on the remote controller moves continuously The power lamp is not lit Has the power been cut Temperature setting cannot be increased Has the maximum temperature setting been changed P20 21 If the power is disconnected for any reason when the power is reconnected the clock on the display screen shows 0 00 indicating tha...

Page 35: ...essurized rapidly to atmospheric pressure It is similar to the bubbles in beer or carbonated beverages Water leaks from the drain plugs on the outlet When the main unit is highly pressurized water will leak from the drain plugs as a safety so that the unit is not damaged by the high pressure These plugs are pressure relief valves If water is leaking out of them excessive pressure is being supplied...

Page 36: ...nd when the hot water tap is turned on it is back to normal if nothing is displayed This display is an example Failuredisplayblinks 11 F11 Fault occurs with combustion of the unit Please contact your retailer or gas supplier 99 F99 Combustion lamp is lit P6 In the event of a failure you are notified by the combustion lamp blinking at the front of the unit Please resolve the problem in accordance w...

Page 37: ... for a minimum of ten years after production has ceased These are the parts necessary to repair or maintain this unit Warranty First follow the instructions in the troubleshooting section P33 to P36 If the error is not corrected contact your Bosch Service Dealer A request for service may be rejected if the water heater is installed in a location where working on the unit may be dangerous Contact a...

Page 38: ...ure Relief Valve Lightning Protection Device ZNR Electric Leakage Prevention Device Overheat Prevention Device Freezing Prevention Device Fan Rotation Detector Remote Controller Anchoring Screws Specifications Specifications Specifications may be changed without prior notice The capacity may differ slightly depending on the water pressure water supply piping conditions and water temperature Perfor...

Page 39: ...ternal outfitting KM3211WH KM3211WH KM3211WH KM3211WH KM3211WH KM3211WHQ KM3211WHQ KM3211WHQ KM3211WHQ KM3211WHQ 003 002 002 003 025 027 027 022 022 070 070 070 070 730 070 730 038 010 012 009 025 016 072 072 007 008 006 074 070 KM3211WHQ KM3211WH 001 023 071 004 040 039 070 050 026 734 ...

Page 40: ...nt packing DHN DHNL003 1 016 Pump fixing plate DHN DHNA007 1 For KM3211WHQ 022 Caution label BOSCH EJX EJXK004 1 023 Plug insulation sheet CRU CRUK002 1 025 Case H EJX EJXA011 1 For KM3211WH 022 also replace Case QH EJX EJXA001 1 For KM3211WHQ 022 also replace 026 Air themistor 300 BWC BWCH003 1 For KM3211WHQ 027 Cord Bush C1 7355009 1 038 Shield plate EAD EADA011 1 For KM3211WHQ 039 Connection di...

Page 41: ...ombution unit and gas route KM3211WH KM3211WH KM3211WH KM3211WH KM3211WH KM3211WHQ KM3211WHQ KM3211WHQ KM3211WHQ KM3211WHQ 100 109 126 173 170 070 119 125 070 173 122 123 121 120 172 172 174 124 171 121 110 116 117 117 118 171 172 175 175 112 111 115 114 127 070 073 070 132 131 129 128 072 103 104 101 102 105 070 141 070 ...

Page 42: ...Manifold seal packing side CRP CRPL004 2 118 Manifold seal packing bottom CRP CRPL003 1 119 Fan moter Q CXB CXBF030 1 120 Manifold pipe DHN DHNE015 1 121 also replace 121 O ring P25 5 SAB1512 2 122 Gas mech S24DQ CRP SET V SAQ7708 1 123 O ring JASO 2028A 8590109 1 124 Gas fitting 20ASET CRU CRUE016 1 123 also replace 125 Mounting plate for burner case DLT DLTC001 1 126 Main damper 11 CRP CRPC052 1...

Page 43: ...3 484 406 402 407 408 402 173 409 406 471 470 511 411 413 410 434 073 453 172 420 172 455 443 445 509 418 434 456 456 434 431 468 468 456 412 417 456 B B 438 439 440 434 172 509 418 174 446 472 471 434 456 A A C C D D 435 412 463 507 508 413 458 423 412 510 402 413 418 172 509 442 441 174 414 454 428 456 434 400 412 511 413 435 421 422 434 437 444 447 452 412 425 413 508 427 507 ...

Page 44: ...1 470 511 411 413 410 434 073 453 172 420 172 455 443 445 509 418 434 456 456 434 480 456 412 417 456 B B 438 439 440 428 172 509 418 174 472 471 434 456 A A C C D D 435 412 463 507 508 413 458 423 412 510 402 413 418 172 509 442 441 174 414 454 428 456 434 412 511 413 435 421 422 434 437 444 452 429 405 172 420 428 433 073 E 173 409 400 424 412 425 413 508 427 507 483 484 485 484 468 484 483 485 ...

Page 45: ...1WHQ KM3211WHQ KM3211WHQ Thermal fuse Heat exchanger Thermal fuse fastener Rear side view Left side view Right side view Front side view Thermal fuse rounding procedure Freeze preventive heater Thermal fuse fastener 405 447 442 450 451 449 506 446 441 448 459 459 460 462 412 413 435 464 507 508 475 477 476 456 481 482 172 420 434 428 428 428 428 433 433 433 433 512 174 E 509 418 016 ...

Page 46: ...hing fittingSET DHN DHND018 1 For KM3211WHQ 420 428 also replace 431 Water inlet pipe EAC EACD001 1 For KM3211WH 433 Quick fastener 13 22 SAD6537 1 For KM3211WH Quick fastener 13 22 SAD6537 6 For KM3211WHQ 434 O ring P16C 3223302 7 435 Shut off cock AXG AXGD089 2 For KM3211WH 412 also replace Shut off cock AXG AXGD089 3 For KM3211WHQ 412 also replace 437 Water inlet fitting 20ASET EAC EACD006 1 Fo...

Page 47: ... O ring P14C 1326708 1 For KM3211WHQ 480 Water inlet pipe EAD EADD001 1 For KM3211WHQ 481 Return pipe EAD EADD006 1 For KM3211WHQ 482 Pump comes out of pipe EAD EADD008 1 For KM3211WHQ 483 Dummy heater 240V DJW DJWH004 1 For KM3211WH Dummy heater 240V DJW DJWH004 2 For KM3211WHQ 484 Heater fastener M AJB AJBL002 1 For KM3211WH Heater fastener M AJB AJBL002 4 For KM3211WHQ 485 Freeze preventive hea...

Page 48: ...c controller KM3211WH KM3211WH KM3211WH KM3211WH KM3211WH KM3211WHQ KM3211WHQ KM3211WHQ KM3211WHQ KM3211WHQ 703 705 700 073 710 732 070 070 070 734 714 715 717 722 070 073 721 721 733 730 730 731 731 713 711 070 070 KM3211WH KM3211WHQ KM3211WHQ KM3211WH 701 701 735 736 736 F F F G G G H H H ...

Page 49: ...ng plate for terminal block DZT DZTA006 1 711 Short circuit safety device 240 EJS EJSJ022 1 713 Power cord EJX EJXJ017 1 714 Nylon clamp HP 4N NK 4N 7287909 1 715 Nylon clamp HP 5N NK 5N 7224001 1 717 Conduit 90 2 CCP CCPJ028 1 721 Cross recessed bind machine screw M3 5X6 SUS430 722 Cross recessed round head N tapping screw 4X12 SUS410 730 Transformer EJX EJXJ021 1 731 Transformer cover EJS EJSA02...

Page 50: ...set KM3211WH KM3211WH KM3211WH KM3211WH KM3211WH KM3211WHQ KM3211WHQ KM3211WHQ KM3211WHQ KM3211WHQ RCS 3211 Additional remote controller Kitchen remote controller RCM 3211 803 761 751 762 752 786 786 788 787 785 Attached set Remote controller 771 Kitchen remote controller RCM 3211 751 752 786 788 787 KM3211WHQ Special part Special part no Special part instruction manual 888 ...

Page 51: ... BOS QPA QPAJ007 1 752 M Drssed frame body BOS QPA QPAA007 1 761 RC 7002B body BOS QKA QKAJ026 1 771 also replace 762 B Drssed frame body BOS QKA QKAA326 1 771 Wall packing QHU QHUA115 1 785 Cross recessed round wood screw 4 1X25 SUS305 786 Oar plug 6X25 787 Cross recessed flat head screw M4X35 SWRM chromate 788 Cross recessed flat head wood screw All screw 4 1X20 SWRM chromate 800 GQ3210WZF 2BOS ...

Page 52: ...is symbol Robert Bosch Australia Pty Ltd 10 Basic Steps for Installation 1 Check cold water supply pressures min max as per page 62 2 Check gas pipe sizing as per AG5601 3 Determine most suitable location for appliance 4 Check Relevant Gas Water Electrical Regulations 5 Fix hot water appliance to wall surface as per page 57 6 Locate connect cold and hot water piping to unit as per page 62 7 Check ...

Page 53: ...vices System Diagram Insulate the hot water piping to prevent heat loss Insulate and apply heating materials to the cold water supply piping to prevent heat loss and freezing of pipes when exposed to excessively cold temperatures G Quick Connect Cord Remote Controller Cord Gas Supply Piping Cold Water Supply Hot Water Remote Controller Terminal Block Cord Connector Cord Connector Union Make this d...

Page 54: ...s or fire 55 5 kW LPG 250 MJ hr 150 W MAX 900kPa 1 54 kPa AC240V50Hz BOSCH MODEL GAS CONSUMPTION HEAT OUTPUT GAS TYPE WATER PRESSURE RATED POWER ELECTRICAL RATING 32L minRAISED25C HOT WATER SUPPLY CAPACITY GAS PRESSURE TEST POINT KM3211WHQ X X X SERIAL NUMBER NUMBER AGAAPPROVALCERTIFICATION NORITZ CORPORATION XXXX XX XXXXXX 4 Choosing Installation Site Locate the appliance in an area where leakage...

Page 55: ...rom entering into the equipment Avoid installation in places where dust or debris will accumulate Dust may block the air supply opening causing the perfor mance of the device fan to drop and incomplete combustion to occur as a result Install in a location where the exhaust gas flow will not be affected by fans or range hoods See AS5601 Take care that noise and exhaust gas will not affect neighbors...

Page 56: ...ust exceed that of the device Do not remove mounting brackets to reduce air gap at rear In Accordance To AS5601 Maintain the following clearances to any opening in any building 1 5m below and 0 5m horizontally from any door window or gravity air inlet 1m above any forced air inlet 500mm below an overhang Check Illustration Caution Range Exhaust hood Dividing plate 300mm Indoor 500mm Outdoor 600mm ...

Page 57: ...egulations or using AS5601 A heavy load will be applied to the wall on which the water heater is mounted If the strength of the wall is not sufficient reinforcement will be necessary Location of drill hole Location of drill hole Mounting Water heater and building structure Caution When installing with bare hands take caution to not inflict injury Be careful not to hit electrical wiring gas or wate...

Page 58: ...pliance to this venting system Vent Piping Use only approved vent materials Follow the vent pipe manufacturer s installation instructions Make the vertical section of the exhaust vent as short as possible Maintain the same vent pipe diameter all the way to the end Pipe diameter 100mm No of Elbows Max Straight Vent Length 3 5m 2 9m 1 13m Horizontal Vent Termination Terminate at least 350mm above gr...

Page 59: ... and protect against mechanical failure When the vent penetrates a floor or ceiling and is not running in a fire rated shaft a firestop and support is required Terminate the vent system at least 1m above but not more than 2m above the roof line or according to the vent pipe manufacturer s instructions Provide vertical support every 3 6m or as required by the vent pipe manufacturer s instructions S...

Page 60: ...oom in which the water heater is used Observe the commercial gas equipment installation criteria and operation criteria Air inlet Openings supplying indoor air 500mm 300mm 500mm 300mm For internal installations be sure to provide adequate ventilation for the unit to operate correctly and safely refer to AS5601 Optional External flue terminal ...

Page 61: ...the inlet diameter of the water heater Gas flex lines are not recommended unless they are rated for 260 MJ h Install a gas shutoff valve on the supply line Use only approved gas piping materials Follow the instructions from the gas supplier Gas Pressure Size the gas line according to total MJ h demand of the building and length from the meter or regulator so that the following supply pressures are...

Page 62: ...ng with a diameter smaller than the coupling When feed water pressure is too high insert a depressurizing valve or take water hammer prevention measures Avoid using joints as much as possible to keep the piping simple Avoid piping in which an air holdup can occur Use approved piping materials If installing the unit on a roof If the unit is installed on a roof to supply water to the levels below ma...

Page 63: ...o more than 20 bends Contact the relevant waterworks department for direct connection to city water at a distance of over 30m 3 Piping diameter shall be as follows Forward Return 4 Limit of height differential is as follows In this case 196 kPa or more is required as the water supply pressure at the appliance inlet 5 Since there occurs improper circulation do not conduct two routes of piping Preca...

Page 64: ...te In order to prevent air pockets in the circulation pump air outlet air vent shall be installed near the appliance on the return line The pipe must be firmly secured If it is not secured firmly abnormal noise may be generated when the circulation pump is running Thermal insulation suited to the location must be used to prevent the pipe from freezing Water supply Discharged Water supply Air vent ...

Page 65: ...Safety valve Hot water circulation pump Note 2 Hot water return pipe 20 32mm Directly vented expansion tank Automatic air vent valve Air moisture separator Safety valve Automatic air vent valve Hot water supply pipe 32 50mm Hot water supply point Fixed flow rate valve Pump controller PCU series Electrical device to control the pump Two core 220 V 1 A or less shall be used No voltage A contact 10 P...

Page 66: ...ter servicing Field wiring to be performed at time of appliance installation Caution The electrical supply required by the water heater is 240V AC at 50 Hz The power consumption may be up to 135W Use an appropriate circuit Do not disconnect the power supply when not in use When the power is off the freeze prevention in the water heater will not acti vate resulting in possible freezing damage Do no...

Page 67: ...te pressing the or buttons unplug the power and repeat the above procedure The item number and data are shown as well as Maintenance Initial setting for the item number is 99 When the button is pressed the 99 displayed will change to 10 11 1F 20 21 etc and conversely when the button is pressed the 99 displayed will change to 10 FF FE FD FC 27 etc Item No Temp Factory Default Setting 14 ON 40 C 15 ...

Page 68: ...ational Electrical Code and all applicable local codes Connecting Remote Controller Cord to Unit Keep the remote controller cord away from the freeze prevention heaters in the unit Tie the redundant cord outside the water heater Do not put the extra length inside the equipment The remote controller cord can be extended up to 100m with Remote controller cord Use a Y type terminal with a resin sleev...

Page 69: ...ust vent during cold weather However this is not a malfunction of the unit If an 11 error code appears on the remote controller turn the unit off and then back on again and then open a hot water fixture again 2 Change the temperature setting on the remote controller and check that the water temperature changes If the water heater does not operate normally refer to Troubleshooting in the Operation ...

Page 70: ... GAS INLET R3 4 70 COLD WATER INLET R3 4 ELECTRIC WIRE INLET 240 10 10 87 70 70 170 170 140 140 100 100 36 36 POWER CORD OPERATION LAMP AIR INLET PRESSURE RELIEF VALVE 25A0CONNECTION HEIGHT FROM THE BOTTOM OF CASE mm WATER FILTER COLD WATER INLET WATER DRAIN VALVE WATER DRAIN VALVES 15 71 615 464 450 450 225 95 169 140 60 50 244 HOT WATER OUTLET WATER DRAIN VALVES ELECTRIC WIRE INLET GAS INLET 100...

Page 71: ...OLD WATER INLET R3 4 ELECTRIC WIRE INLET 87 WATER DRAIN VALVE PRESSURE RELIEF VALVE WATER FILTER 140 HOT WATER RETURN 169 140 60 50 244 HOT WATER OUTLET WATER DRAIN VALVE ELECTRIC WIRE INLET GAS INLET COLD WATER INLET 70 170 140 100 36 70 170 140 100 36 665 2 39 7 240 10 10 POWER CORD 71 95 BOTTOM OF CASE 15 615 OPERATION LAMP AIR INLET EXHAUST PIPE CONNECTION 464 450 225 100 450 25A0CONNECTION HE...

Page 72: ...White 4 Green 5 Blue 6 Blue 1 White 2 Green 3 Red 4 Black 5 Blue 6 Blue Instruction for connecting the Quick Connect Cord to each unit 1 Turn off the power 2 Remove the front cover of the heater 4 screws 3 Pass the Quick Connect Cord through the wiring throughway and into the unit 4 Plug the connector on the Quick Connect Cord to the receptacle inside the unit 5 Attach the ground wire of the Quick...

Page 73: ...ose specified for this equipment Do not disassemble the remote controller Do not use petrol oil or fat detergents to clean the remote controller This may cause deformation Do not get the remote controller wet Although it is water resistant too much water can cause damage Do not splash water on the remote controller Do not expose the remote controller to steam Do not locate the remote controller ne...

Page 74: ...he case of exposed wiring attachment to the wall first open up the cord intake on the main remote controller body using pliers Take care not to damage the board in the process Main remote controller body Decorative cover 2 Position the holes diameter 6 mm X depth 25 30 mm to secure the remote controller for the kitchen and knock in all the raw plugs Next secure it using oval headed wood screws 3 R...

Page 75: ...oles 6 25 to 30 mm deep on the wall to secure the remote controller case and embed the wall plugs into the holes 3 Take off the decorative frame from the remote controller 4 Apply the wall packing to the rear side of the remote controller 118 mm Use the JIS C83361 switch box for individual use at the remote controller side Dimensions of back support board reference 2P connector Switch box Bath tub...

Page 76: ...XX XXXXXX SERIAL NUMBER NUMBER AGAAPPROVALCERTIFICATION NORITZ CORPORATION XXXX XX XXXXXX 55 5 kW LPG 250 MJ hr 150 W MAX 900kPa 1 54 kPa AC240V50Hz BOSCH BOSCH MODEL GAS CONSUMPTION HEAT OUTPUT GAS TYPE WATER PRESSURE RATED POWER ELECTRICAL RATING 32L minRAISED25C HOT WATER SUPPLY CAPACITY GAS PRESSURE TEST POINT KM3211WHQ XXXX XXXXXX X X X X X X XXXXX SERIAL NUMBER NUMBER AGAAPPROVALCERTIFICATIO...

Page 77: ...d acceptable and generally Australian and New Zealand suburban water supplies fall within these limits parameters In areas of Australia and New Zealand where water may be supplied either fully or partly from bores artesian wells or similar one or more of the important limits may well be exceeded and the heater could therefore be at risk of failure Where uncertainty exists concerning water quality ...

Page 78: ...authorised repairs or alterations to the unit without Bosch s consent e use of unauthorised parts and accessories without Bosch s consent f use of non potable water or bore water in the hot water unit see product instructions for further details g continued use after a fault becomes known or apparent This warranty DOES NOT include a costs of consumables or accessories b wear and tear normal or sch...

Page 79: ...of customer support for the provision of information about products and services and for other marketing activities undertaken by Bosch and its Bosch Service Agents who are authorised to carry out warranty repairs on behalf of Bosch Purpose Bosch is committed to protecting the privacy of its customers personal information It will act in compliance with the National Privacy Principles and Privacy A...

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Summary of Contents for KM3211WH

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Bosch KM3211WH, Installation & Owners Manual, Page: 47 / 79

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