Bosch OptiFlow Professional GWH12 1 CTD E23 F3 OL Installation Manual
Gas continuous flow water heaters
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Gas continuous flow water heaters
OptiFlow Professional
GWH12 1 CTD E23/31 F3 OL
Installation Manual
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!
6720808877-00.1V
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Table of Contents
Related Manuals for Bosch OptiFlow Professional GWH12 1 CTD E23 F3 OL
Summary of Contents for Bosch OptiFlow Professional GWH12 1 CTD E23 F3 OL
- Page 1 6720808877-00.1V Gas continuous flow water heaters OptiFlow Professional GWH12 1 CTD E23/31 F3 OL Installation Manual 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!
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Page 2: Table Of Contents
2 | Index Index 6.3.3 Adjusting the minimum flow Key to symbols and safety instructions ..3 (Parameter P2) ..... .15 Key to symbols . -
Page 3: Key To Symbols And Safety Instructions
Keywords at the start of a warning indicate the type and seriousness of the ensuing risk ▶ Use only genuine Bosch spare parts. if measures to prevent the risk are not taken. Explosive and highly flammable material ▶... - Page 4 4 | Key to symbols and safety instructions This appliance must not be installed indoors or in an enclosed All gas appliances require adequate air intake space. This appliance is approved for outdoor installation only. to ensure correct combustion. Insects and Do not install this appliance with any modification or alteration.
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Page 5: Product Details
Product details | 5 “This appliance can be used by children of 8 years and older, as Description of appliance well as by people with reduced physical, sensory or mental • Wall-mounted appliance capabilities or lacking in experience and knowledge, if they are •... -
Page 6: Dimensions And Minimum Clearances
6 | Product details Dimensions and minimum clearances >10 >10 6720808877-02.1V Fig. 1 Dimensions (in mm) Connections Water Cold Nat. GWH12 ½ “ ½ “ ½ “ ½ “ Table 4 Dimensions (in mm) 6 720 810 559 (2016/06) OptiFlow Professional... -
Page 7: Appliance Layout
Product details | 7 Appliance layout 6720808877-03.1V Fig. 2 [1] Flue terminal [16] Cold water temperature sensor [2] Flame sensor rod [17] Gas valve [3] Burner [18] Cold water valve [4] Air pressure test point [19] Incoming gas pressure test point [5] Fan [20] Gas inlet [6] Air temperature sensor of the box... -
Page 8: Electrical Wiring Diagram
8 | Product details Electrical wiring diagram Fig. 3 Electrical diagram [1] Flame sensor rod [9] Segmentation electrovalve 2 (gas) [2] Fan [10] Safety electrovalve (gas) [3] Ignition electrode [11] Thermal fuse [4] Power supply [12] Water flow sensor [5] Connection for frost-protection device [13] Air temperature sensor [6] Connection for remote control (optional) [14] Hot water temperature sensor... -
Page 9: 2.10 Specification
Product details | 9 2.10 Specification Technical features Units GWH12 Performance Nominal gas consumption MJ/h 90.0 Minimum gas consumption MJ/h 11.9 Efficiency at 100% of nominal load 82.4 Gas supply data Gas supply pressure (flowing) Natural gas (when operating) 1.13 Universal LP gas (when operating) 2.75 Water supply data... -
Page 10: Regulations
10 | Regulations Not suitable for pool or spa pool Regulations applications. Any local by-laws and regulations pertaining to installation and use of gas-fired appliances must be observed. This appliance must be installed in accordance with the manufacturers installation instructions, AS/NZS5601 and all WARNING: Scalding! Local Building &... -
Page 11: Choice Of Installation Site
Installation (only by authorised technicians) | 11 Choice of installation site 4.1.1 Regulations concerning the installation site ▶ Install the appliance outdoors. The top of the unit should be positioned at less than 1800mm from the ground (the bottom should remain at more than 300mm). ▶... -
Page 12: Installing The Appliance
12 | Installation (only by authorised technicians) It is recommended that for sanitary fixtures use primarily for Item Min.clea- the purpose of personal hygiene, that a temperature control rance (mm) device be fitted (such as a tempering valve) as per AS3498. Appliances over 150 MJ/h input 1500 Table 6... -
Page 13: Remote Control Connection (Optional)
Electrical connection (only by authorised technicians) | 13 Remote control connection (optional) Connecting the communication cable to the appliance ▶ Connect the communication cable to the appliance. Connecting the communication cable to the remote control ▶ Open the remote control. ▶... -
Page 14: Commissioning Of The Appliance
▶ Reset the appliance by switching it off at the socket and If the power cable is damaged, it must be unplugging the cord. replaced with a Bosch supplied spare part. Regulating the gas (only for authorised ▶ Connect the power cable to a power socket. -
Page 15: Adjusting The Appliance
Regulating the gas (only for authorised technicians) | 15 Adjusting the appliance ▶ Press for 3 seconds. The value flashes as a sign of confirmation. 6.3.1 Access to the pressure heads ▶ Press ▶ Remove the front of the appliance. Display will show "L1". -
Page 16: Adjusting Pressure In The Burner (Parameter P0)
16 | Regulating the gas (only for authorised technicians) Factory default settings Natural gas H Universal ▶ Enter the service mode by pressing and holding down the LP gas , and buttons simultaneously for 3 Ø injector GWH12 seconds (section 6.2). Dynamic Display will show"P2". -
Page 17: Maintenance
▶ Open the electronic control unit. ▶ Replace the fuse. ▶ Your appliance should only be attended to by a Bosch Start-up after completion of maintenance service technician. To locate your nearest service provider, call: AU 1300 30 70 37, NZ 0800 54 33 52 ▶... -
Page 18: Troubleshooting
18 | Troubleshooting Troubleshooting Fitting, maintenance and repair must only be carried out by authorised technicians. The following table describes the possible solutions. Display Description Solution Cold and hot temperature sensor damaged. ▶ Check temperature sensor and associated connections. ▶ If the problem persists, call an authorised service technician. - Page 19 Troubleshooting | 19 Display Description Solution Cold temperature sensor faulty. ▶ Check temperature sensor and associated connections. ▶ If the problem persists, call an authorised service technician. Air temperature sensor detects overheating (leaking ▶ Switch off at the power point and remove the combustion products inside the combustion plug from the electrical socket.
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Page 20: Environment / Disposal
20 | Environment / disposal Environment / disposal Environmental protection is a fundamental corporate strategy of the Bosch Group. The quality of our products, their efficiency and environmental safety are all of equal importance to us and all environmental protection legislation and regulations are strictly observed. -
Page 21: Water Quality
Water quality | 21 Water quality All Bosch water heating appliances are constructed from high quality materials and components and all are certified for compliance with relevant parts of Australian and New Zealand gas, electrical and water standards. Whilst Bosch water heaters are warranted against defects, the... -
Page 22: Warranty Details
1. Warranty of the hot water unit. Bosch offers, at its option, to repair or exchange this Bosch hot water unit or the relevant part listed in clause 2 below at no 4. Warranty conditions charge, if it becomes faulty or defective in manufacture or (a) Proof of purchase may be required. - Page 23 Purpose. A customer can object at any time to the use of their personal information for the Purpose. Bosch will cease to use a customer's personal information accordingly if an objection is made.
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