Bosch GWH 10-2 G Series Installation Manual And Operating Instructions Download Page 1

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Installation Manual and Operating Instructions

Gas Water Heaters

GWH 10-2 G... | GWH 13-2 G... | GWH 16-2 G...

6 720 608 992 (202

) A

Summary of Contents for GWH 10-2 G Series

Page 1: ...Installation Manual and Operating Instructions Gas Water Heaters GWH 10 2 G GWH 13 2 G GWH 16 2 G 6 720 608 992 2021 02 AU ...

Page 2: ...e place of installation 10 4 3 Heater mounting 11 4 4 Water connection 11 4 5 Hydrogenerator operation 11 4 6 Pressure Relief 11 4 7 Gas connection 12 4 8 Flue connection 12 4 9 Testing 12 5 Operating instructions 13 5 1 Digital display description 13 5 2 Before starting up the heater 13 5 3 Turning the heater on and off 13 5 4 Water flow 13 5 5 Gas adjustment 14 5 6 Temperature flow adjustment 14...

Page 3: ...o the heater can only be performed by an authorised installer Do not modify the pipes which conduct combustion gases Do not close or reduce air circulation vents Maintenance We recommend the system be serviced regularly to ensure it functions reliably and safely The installer is responsible for the safety and environmental compatibility of the installation The heater should be serviced annually On...

Page 4: ... modifications or repairs themselves Tobeinstalledandservicedonlybyan authorised person The authorised installing person is responsible for Correct commissioning of this appliance Ensuring the appliance performs to thespecificationsstatedontherating label Demonstrating the operation of the appliance to the customer before leaving Handing these instructions to customer Flue and ventilation guidelin...

Page 5: ...nit A small voltage is generated by the turbine The voltage causes the ignition control unit to light a temporary pilot The water pressure opens the main burner gas valve and the pilot ignites the main burner the pilot then goes out The water flows through the heat exchanger where it is heated On Off switch to allow customer to activate the appliance Safety devices Flame rod to check for accidenta...

Page 6: ... Digital display 6 Switch LED Low water pressure indicator 7 LED Burner status check 8 Gas connection 9 Connection collar for flue 10 Draught diverter 11 Copper Heat exchanger 12 Burner 13 Gas valve 14 Ignition unit Dimensions mm A B C D E F G H Ø Natural gas LP gas GWH10 310 580 228 115 463 60 25 20 15 GWH13 350 655 228 140 510 95 30 20 15 GWH16 425 655 334 140 540 65 30 20 15 Table 4 Dimensions ...

Page 7: ...ctor 11 Water valve 12 Plunger 13 Water flow regulator 14 Water filter 15 Hydrogenerator 16 Cold water pipe 17 Diaphragm 18 Main gas valve 19 Maximum gas adjusting screw 20 Gas supply pipe 21 Gas filter 22 Hot water pipe 23 Ignition unit 24 Temperature sensor 25 Servo valve 26 Power selector 27 Gas valve 28 Pilot valve 29 Pilot injector 30 Pilot gas pipe 31 Overtemperature switch 32 Flue gas safet...

Page 8: ...y Open 12 Hydrogenerator 13 LED Burner status check 14 Microswitch 2 8 Function This gas heater is equipped with automatic electronic ignition to simplify operation To activate just turn on the switch Fig 9 After this automatic ignition occurs whenever a hot water tap is opened First the pilot burner is lit and approximately four seconds later the main burner ignites The pilot burner flame is exti...

Page 9: ...l characteristics Units GWH10 GWH13 GWH16 Gas Consumption Nominal Gas Consumption MJ 79 100 NG 127 97 LP gas Supply pressure Natural gas H kPa 1 13 1 13 1 13 LP gas kPa 2 75 2 75 2 75 Number of injectors 12 14 18 Water data Maximum permissible pressure kPa 1000 1000 1000 Temperature selector in fully clockwise position Temperature rise C 50 50 50 Flow range l min 2 2 4 6 2 2 6 2 2 2 8 6 Minimum op...

Page 10: ...les of particularly corrosive substances halogenated hydrocarbons contained in solvents paints glues hairsprays and various domestic detergents If necessary take adequate measures Install the appliance in accordance with the minimum installation clearances indicated in Fig 4 The gas heater must not be installed over a heat source Do not obstruct the openings at top and bottom of appliance Top and ...

Page 11: ...e connection accessories provided Fig 5 Water connection 4 5 Hydrogenerator operation The hydrogenerator hydrodynamic generator or HDG is located in the water circuit between the water valve and the heat exchanger This component has a turbine that rotates whenwaterflowspastitsblades Thismovementistransmitted to an electric generator which powers the heater ignition unit The electrical voltage valu...

Page 12: ...structions Typical flue installation Fig 7 Flue connection 4 9 Testing Turn on the gas and water isolation valves and check all connections for leaks If all connections are sound then follow procedures set out in Section 6 for adjustment of Gas Pressures DANGER If local regulations are not followed a fire or explosion could result causing property damage personal injury or loss of life Size gas su...

Page 13: ...on LED light on Main burner on Fig 10 Turning off Press the switch position 5 4 Water flow If the red LED starts flashing during operation check the water flow Open all water and gas isolation valves Purge the pipes CAUTION Thefrontstainlesssteelpanelintheburnerand pilot burner area may reach high temperatures with risk of burning in case of contact and must not be removed CAUTION Initial startup ...

Page 14: ...g 13 5 6 Temperature flow adjustment Turn anti clockwise Increases flow and decreases water temperature Fig 14 Turn clockwise Decreases flow and increases water temperature Regulating the temperature to the minimum required value reduces energy consumption CAUTION The temperature on the display is not precise alwayscheckbeforebathingchildrenorelderly people ...

Page 15: ...Remove the pressure relief screw no 1 situated in the water inlet pipe Drain all the water contained in the heater Fig 16 Draining 1 pressure relief screw 6 Commissioning 6 1 Inlet pressure adjustment Burner pressures have been adjusted in the factory however adjustment may be required upon installation Attacha manometer to the inlet pressure test point 1 located on the gas inlet pipe 2 Fig 17 Gas...

Page 16: ...nce To ensure that gas consumption and the environmental load pollution etc remain as negligible as possible over time we recommend the appliance be maintained on an annual basis These jobs can only be done by a qualified technician 7 1 Flue gas safety device Operation and precautions This probe verifies the condition of flue gas evacuation and in case of malfunction it automatically turns off the...

Page 17: ...lace if required Water throttle greased O rings replaced if required Water filter cleaned replaced if required Sleeve greased replaced if required Water governor clean Gas valve Pilot burner cleaned Flame rod cleaned Main burner injectors and venturies cleaned Hydrogenerator Inlet clear of obstructions Heat exchanger Fins cleaned Water connections checked and tightened Gas pressure Burner pressure...

Page 18: ...ian Digital display shows E9 Digital display shows A4 Temperature limiter has tripped Flue gas safety device has tripped Wait 10 minutes and restart the heater If the problem persists call a qualified technician Ventthearea Wait10minutesandrestart the heater If the problem persists check Is fluing correct Adequate ventilation Negative pressure environment Call a qualified technician Incorrect temp...

Page 19: ... running Turn the water off and on If the problem persists call a qualified technician Digital display shows F7 False Flame Check for water tightness of flue Ensure no rain ingress Call a qualified technician Reduced water flow Insufficient water supply pressure Dirty taps or mixers Gas valve blocked Heat exchanger blocked limescale Call a qualified technician Call a qualified technician Call a qu...

Page 20: ... use the best possible technology and materials under economic considerations to protect the environment Packaging We participate in the recycling program of the respective country to ensure optimal recycling All of our packaging materials are environmental friendly and can be recycled Old appliances Old appliances contain valuable materials that should be recycled The assemblies can beeasily deta...

Page 21: ... are considered 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 ...

Page 22: ...Product if such Product are faulty or defective in manufacture or materials during the warranty period specified below The warranty period commences on the date of purchase If the date of original purchase cannot be determined then the warranty period will commence six 6 months after the date of manufacture stamped on the Product Bosch may require evidence to verify the date of purchase This warra...

Page 23: ...f correct commissioning of the Product such as certificate of compliance Claims for failures due to incorrect installation or commissioning are not covered under this voluntary warranty and may be rejected by Bosch Where a Product or part thereof is replaced or repaired under this voluntary warranty the balance of the original voluntary warranty will apply The replacement Product or part does not ...

Page 24: ... by third parties not authorised by Bosch Deadlines for Submitting Warranty Claims Boschaimstorectifygenuinequalityproblemsasapriority Thisisgenerallyachievedbyinvestigatingwhydefectiveproductshave failedandbyintroducingimmediatecorrectiveactionmeasurestopreventre occurringwarrantyfailures Itisthereforecriticalthat all warranty claims are promptly submitted to Bosch as soon as the product fails an...

Page 25: ...onal information Bosch or its authorised service technician hold about them The end user can request to see change or modify the personal information held about them or withdraw consent for its usage by contacting Bosch at the Bosch Contact Details below Bosch Contact Details This warranty is offered by Robert Bosch Australia Pty Ltd ACN 004 315 628 of 1555 Centre Road Clayton Victoria 3168 Please...

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