Bosch Optiflow GWH16 3 CT E23 F6 L S2405 Installation Manual Download

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Installation Manual

Gas continuous flow water heaters

Optiflow

6720817545-00.1V

GWH16/20/26 3 CT E23/31 F6 L S2405

6 720 817 545 (2016/02) AU

Read installation manual prior to installation of this appliance!
Read user manual before putting this unit in operation!

Observe the warnings in the manuals!
The installation location must meet the requirements for sufficient ventilation!

Installation by an authorised person only!

Summary of Contents for Optiflow GWH16 3 CT E23 F6 L S2405

Page 1: ... S2405 6 720 817 545 2016 02 AU Read installation manual prior to installation of this appliance Read user manual before putting this unit in operation Observe the warnings in the manuals The installation location must meet the requirements for sufficient ventilation Installation by an authorised person only ...

Page 2: ...de of installation site 12 4 7 Remote control connection optional 13 4 8 Electrical connection only by authorised technicians 13 4 8 1 Connecting the power cable 13 4 9 Commissioning of the appliance 14 4 10 Changing the setpoint limit temperature only for 55 C preset appliances 14 4 11 Delivery temperature calibration 14 5 Regulating the gas only for authorised technicians 15 5 1 Factory settings...

Page 3: ...er is the responsibility of the property owner Use only genuine Bosch spare parts Explosive and flammable material Do not store or use flammable material paper spray cans solvents paints etc near the heater Combustion air and surrounding air The combustion air and surrounding air must be free from corrosive substances Do not spray aerosols or use chemicals around the heater unless heater is discon...

Page 4: ...ure to comply with this requirement may void the warranty Refer to AS NZS5601 for the relevant gas pipe sizing After finishing the gas piping system the pipes must be thoroughly purged and leak tested This test must be performed with the gas isolation valve of the appliance closed Ensure the gas pressure and flow through the regulator are appropriatefortheconsumptionoftheheater seetable 5 page 9 R...

Page 5: ...1 Appliance set for LPG universal LPG F6 Outdoor installation L Locked water temperature adjustment 2 3 Included items Gas continuous flow water heater Appliance documentation 2 4 Rating plate The rating plate is located on the outside of the appliance on the bottom The plate specifies the performance of the appliance approval data and the serial number 2 5 Description of appliance External wall m...

Page 6: ...45 2016 02 Optiflow 6 Product details 2 7 Dimensions and minimum clearances Fig 1 Dimensions in mm 6720817545 02 1V 10 10 120 160 65 344 45 55 105 524 170 Connections Water Gas Cold Hot Nat LPG GWH16 20 26 Table 4 ...

Page 7: ...r pressure test point 5 Water flow sensor and Water valve 6 Fan 7 Cold water temperature sensor 8 Hot water outlet 9 Cold water inlet 10 By pass valve 11 Gas inlet 12 Electronic control unit 13 Gas valve 14 Gas pressure test point 15 Ignition electrode 16 Heat exchanger 1 2 3 4 6 5 8 9 11 12 10 15 13 16 7 6720817545 01 1V 14 ...

Page 8: ... valve 8 Modulation electrovalve gas 9 Segmentation electrovalve 1 gas 10 Segmentation electrovalve 2 gas 11 Safety electrovalve gas 12 Thermal fuse 13 Water flow sensor 14 Air temperature sensor 15 Hot water temperature sensor 16 Cold water temperature sensor 17 Water valve 18 Outlet water temperature sensor 230 V AC M1 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 10 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...

Page 9: ...le pressure static kPa 1000 1000 1000 Minimum operating pressure kPa 100 100 100 Minimum operation pressure for maximum performance kPa 300 300 300 Minimum water flow l min 2 2 2 Maximum flow corresponding to a temperature increase of 25 C l min 16 20 26 Maximum inlet temperature C 80 80 80 Electrical circuit Power supply voltage VAC 230 240 230 240 230 240 Frequency Hz 50 50 50 Maximum power cons...

Page 10: ...stallationclearancesindicated in Fig 5 and Table 6 Ensurethereisanexternalweatherproofpowerpointinthe area and it is easily accessible after the installation of the water heater Location of the appliance The air intake of this appliance is located on the rear of the DANGER Thisappliancemustnotbeinstalledindoors DANGER Explosion Always shut off the gas valve before carrying out work on gas pipes Th...

Page 11: ...s indicated are included section 2 3 Remove the covers from the gas and water connections Check that the gas type available matches that shown on the sticker on the front of appliance and on its dataplate 6720817545 09 2V N C J B J A C A K G A H N F J A C K B B B G K H Flue terminal positions for water heaters in accordance with AS NZ5601 D D GM P K E E Item Min clea rance mm A Below eaves balconi...

Page 12: ... Gas connection The gas connection to the water heater must comply with AS NZS5601 First ensure that the water heater corresponds to the gas type available Fit a gas isolation valve on the gas supply line as close as possible to the appliance After installation of the gas supply line thorough purging and tightness test must be carried out 4 6 Altitude of installation site To ensure correctoperatio...

Page 13: ...nication cable Connecting the communication cable to the appliance Unscrew the electronic control unit fixing screw Remove the grommet and feed the remote control communication cable through it Route the cable to the inside of the appliance and connect to one of the available connectors at the base of the appliance Fig 8 4 8 Electrical connection only by authorised technicians All the regulating c...

Page 14: ...ure of the water through the thermistor placed at the hot water outlet If the appliance detects an excessive temperature a safety shut off will occur Safety shut off due to incorrect flue conditions If the appliance detects an incorrect flue condition a safety shut off will occur Re start after a safety shut off To put the appliance back into operation after a safety shut off Close all hot water t...

Page 15: ...f the gas pressure test point B Connect the pressure gauge connection to the gas pressure test point Loosen the test point screw of the air pressure test point A Connect the negative side of the pressure gauge to the air pressure test point A Enter the service mode by pressing and holding down the and buttons simultaneously for 3 seconds Display will show P2 Press until the display shows P1 Press ...

Page 16: ...utter screws of the test points A and B The adjustment of the minimum gas flow is complete 5 3 4 Adjusting pressure at the burner Parameter P0 Enter the Service menu by pressing and holding down the and buttons simultaneously for 3 seconds Display will show P2 Press until the display shows P0 Press the button Open a hot water tap Withthepressuregaugeconnected letthevaluemeasured stabilise Press or...

Page 17: ...n Tolocateyournearestserviceprovider call AU 1300 30 70 37 NZ 0800 54 33 52 Only use Bosch supplied replacement parts 6 1 Periodic maintenance Functional check Checkthecorrectoperationofallthesafety regulationand verification elements Heat exchanger If the heat exchanger is showing signs of sooting Remove the heat exchanger Clean by applying a jet of water in the lengthwise direction of the fins I...

Page 18: ...acement of the fuse electronic control unit Open the electronic control unit Remove the PCB from the electronic control unit Replace the fuse located in the corner of the circuit board Fig 12 Fuse replacement 6 3 Start up after completion of maintenance Re tighten all of the connections Check the burner pressure Check air tightness of the flue circuit with the front cover fitted Check that there a...

Page 19: ...n authorised service technician A8 Faulty mixed water temperature sensor Check temperature sensor and associated connections If the problem persists call an authorised service technician A7 Faulty hot water outlet temperature sensor Check temperature sensor and associated connections If the problem persists call an authorised service technician A9 Hot water outlet temperature sensor is not fitted ...

Page 20: ...and restart the appliance If the problem persists call an authorised service technician EC Loss of ionization in less than 5 seconds during 5 times Unplug the electrical connection for 10 seconds Reconnect and restart the appliance If the problem persists call an authorised service technician EE Modulating solenoid valve disconnected Check solenoid connections If the problem persists call an autho...

Page 21: ...cal and water standards Whilst Bosch water heaters are warranted against defects the warranty is conditional upon correct installation and use in accordance with detailed instructions provided with the heater In the case of the water supplied to the heater it is important that the water quality be of an acceptable standard Thewaterqualitylimits parameterslistedinwaterqualitytable are considered ac...

Page 22: ...ences NOTE Any service call costs incurred by the owner or user of the hot water unit for any matter not covered by the terms of this warranty will not be reimbursed by Bosch even if those costs are incurred during the warranty period If the hot water unit is located outside the usual operating area of a Bosch service agent the agent s travel freight or similar costs are not coveredbythiswarrantya...

Page 23: ...ions about this warranty or to lodge a warranty claim please contact Robert Bosch Australia Pty Ltd 1555 Centre Road Clayton Victoria 3168 Tel Australia 1300 307 037 Tel New Zealand 0800 543 352 IMPORTANT NOTE FOR AUSTRALIAN CONSUMERS Our goods come with guarantees that cannot be excluded under the Australian Consumer Law You are entitled to a replacementorrefundforamajorfailureandforcompensation ...

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