Bosch OptiFlow Professional GWH12 1 CTD E23 Installation Manual Download

Page: 1 / 24

Installation Manual

Gas continuous flow water heaters

OptiFlow Professional

6720808877-00.1V

GWH12 1 CTD E23/31 F3 OL

6 720 810 559 (2016/06) 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 Professional GWH12 1 CTD E23

Page 1: ...31 F3 OL 6 720 810 559 2016 06 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: ... supplied with the appliance 12 4 5 Gas connection 12 4 6 Altitude of installation site region 12 4 7 Remote control connection optional 13 5 Electrical connection only by authorised technicians 13 5 1 Connecting the power cable 13 5 2 Commissioning of the appliance 14 6 Regulating the gas only for authorised technicians 14 6 1 Factory regulation 14 6 2 Service function 14 6 3 Adjusting the applia...

Page 3: ...t be free from corrosive substances Do not spray aerosols or use chemicals around the heater unless heater is disconnected from the power supply Risk of damage due to operator error User error can result in injury and damage to property Ensure that children never play with or operate this appliance Ensure that only personnel who can operate this appliance correctly have access to it Refer to the o...

Page 4: ...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 appropriate for the consumption of the heater see table 5 Refer to As NZS5601 and AS3500 1 for the relevant pipe size Note Incorrect pipe sizing or gas supply pressure may cause theappliancetounderperform Servicecallsforinc...

Page 5: ... 23 Appliance set for natural gas 31 Appliance set for Universal LP gas F3 Open flue with fan O Outdoor installation L Locked water temperature adjustment 2 3 Included items Gas continuous flow water heater Fixing brackets Appliance documentation 2 4 Rating plate The rating plate is located on the outside of the appliance on the bottom The particular room has the indications on the performance of ...

Page 6: ... Professional 6 Product details 2 7 Dimensions and minimum clearances Fig 1 Dimensions in mm B C 240 A 583 6720808877 02 1V 10 10 107 120 80 51 Connections Water Gas A B C Cold Hot Nat LPG GWH12 300 570 170 Table 4 Dimensions in mm ...

Page 7: ...ot water temperature sensor 9 Hot water outlet 10 Connecting lead with plug 11 Remote control optional 12 Ignition electrode 13 Gas pressure test point 14 Water flow sensor and Water valve 15 Electronic control box 16 Cold water temperature sensor 17 Gas valve 18 Cold water valve 19 Incoming gas pressure test point 20 Gas inlet 21 Frost protection 6720808877 03 1V 10 2 3 4 5 8 9 6 7 11 15 13 14 20...

Page 8: ...4 Power supply 5 Connection for frost protection device 6 Connection for remote control optional 7 Modulation electrovalve gas 8 Segmentation electrovalve 1 gas 9 Segmentation electrovalve 2 gas 10 Safety electrovalve gas 11 Thermal fuse 12 Water flow sensor 13 Air temperature sensor 14 Hot water temperature sensor 15 Cold water temperature sensor 16 Water valve ...

Page 9: ...rating kPa 1 13 Universal LP gas when operating kPa 2 75 Water supply data Maximum permissible pressure static kPa 1000 Minimum operating pressure kPa 100 Minimum water flow l min 2 2 Maximum flow corresponding to a temperature increase of 25 C l min 12 0 Maximum inlet temperature C 80 Electrical circuit Power supply voltage V 230 Frequency Hz 50 Maximum power consumption W 228 Appliance enclosure...

Page 10: ...line DANGER Thisappliancemustnotbeinstalledindoors DANGER Explosion Always shut off the gas valve before carrying out work on gas pipes The appliance installation electrical connection gas connection and the initial start up are operations to be carried out by authorised technicians only CAUTION The temperature of the incoming water of the appliance must not exceed 80 C If the incoming water tempe...

Page 11: ...with the minimum installation clearances indicated in Fig 5 and Table 6 according to AS NZS5601 The appliance must not be installed over a heat source Do not obstruct the openings of appliance The appliance must installed in a position that is easily accessible to allow service work It is recommended the appliance is installed no more than 2m from the ground to the base of the appliance The areas ...

Page 12: ... test must be carried out 4 6 Altitude of installation site region To ensure correct operation of the appliance it must be indicated the region altitude of the installation site Enter the Service function section 6 2 Display with P2 Press until the display shows P4 Press the button Display with indication E Press until the display shows AS Press the button Display with indication 1 Press the butto...

Page 13: ...nnecting the communication cable to the appliance Connect the communication cable to the appliance Fig 7 The remote control connection is concluded 5 Electricalconnection onlybyauthorised technicians All the regulating control and safety devices in the appliance are factory supplied already connected and ready to operate 5 1 Connecting the power cable 2 1 1 6720806426 03 1V 3 DANGER Due to electri...

Page 14: ...safetydevicesblockthe operation ofthe appliance and air will have to be purged from the circuit Safety shut down due to an excessively high water temperature The electronic control unit detects the temperature of the water through the thermistor placed at the hot water outlet If the appliance detects an excessive temperature a safety shutoff will occur Safety shut off due to incorrect flue conditi...

Page 15: ...the display shows E Press the button Display will show P1 The adjustment of the maximum gas flow is completed 6 3 3 Adjusting the minimum flow Parameter P2 Press until the display shows P2 Press the button Display will show E Press until the display shows L2 Press the button Open a hot water tap The appliance is now ready for adjustment of the minimum gas flow Press or until the pressure gauge sho...

Page 16: ...he service mode by pressing and holding down the and buttons simultaneously for 3 seconds section 6 2 Display will show P2 Press until the display shows P4 Press the button Display will show E Press until the display shows rP Press the button Display will show P1 Press for 3 seconds The value flashes as a sign of confirmation Press Display will show P1 Press until the display shows P2 Press the bu...

Page 17: ...ger replace the o rings and seals Burner Inspect the burner and clean it if necessary If cleaning is required Dismantle the burner Use a brush to clean the surface of the burner elements Use a jet of air to blow the burner elements clean Water filter Close the cold water inlet isolation valve Unscrew the water filter on the cold water pipe Carefully remove the water filter Replace the water filter...

Page 18: ...connections If the problem persists call an authorised service technician A9 Hot water temperature sensor is not fitted properly Incoming gas pressure low Check fitting Check incoming pressure C7 Faulty fan Check if the fan is properly connected to ECU If the problem persists call an authorised service technician CA Water flow above maximum specified value Check incoming water pressure Install a p...

Page 19: ...ts call an authorised service technician EC Failure ionization during operation Check type of gas Check gas pressure Check the ignition system Check the output of combustion gases and remove dirt or other impediment to good extraction EF Wrong gas connected Call an authorised service technician F7 A flame is detected although the appliance is switched off Unplug the electrical connection for 10 se...

Page 20: ...sible technology and materials for protecting the environment taking into account of economic considerations Packaging We participate in the recycling programmes of the countries in which our products are sold to ensure optimum recycling All of our packaging materials are environmentally friendly and can be recycled Used appliances Used appliances contain valuable materials that should be recycled...

Page 21: ...qualitytable 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...

Page 22: ...nfluences 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 coveredbythiswarra...

Page 23: ... questions 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 replacementorrefundforamajorfailureandforcompens...

Page 24: ...6720810559 ...

Search results

Summary of Contents for OptiFlow Professional GWH12 1 CTD E23

Reviews:

Related manuals for OptiFlow Professional GWH12 1 CTD E23

Brands by name

Popular brands

Bosch OptiFlow Professional GWH12 1 CTD E23, Installation Manual

Search results

Summary of Contents for OptiFlow Professional GWH12 1 CTD E23

Reviews:

Related manuals for OptiFlow Professional GWH12 1 CTD E23

Brands by name

Popular brands