Bosch Pilot Ignition TF250 Series Installation Manual And Operating Instructions

Bosch Pilot Ignition TF250 Series Installation Manual And Operating Instructions

Continuous flow gas water heater
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Installation Manual and Operating Instructions
Continuous Flow Gas Water Heaters (External Models)
Pilot Ignition
TF250... | TF400...

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Summary of Contents for Bosch Pilot Ignition TF250 Series

  • Page 1 Installation Manual and Operating Instructions Continuous Flow Gas Water Heaters (External Models) Pilot Ignition TF250... | TF400...
  • Page 2: Table Of Contents

    Table of contents Table of contents Water flow adjustment ... 15 Safety information and symbols ..3 Inlet operating pressure adjustment 15 Key to symbols .
  • Page 3: Safety Information And Symbols

    ▶ Close the gas supply valve to the ▶ Only original spare parts must be appliance. used, supplied by an authorised ▶ Isolate gas supply from gas meter or distributor of Genuine Bosch parts. LPG bottle. Explosive and highly flammable ▶ Do not operate any electrical material appliances or switches (on/off).
  • Page 4 Safety information and symbols ▶ Do not use or store flammable materials in or near this appliance. THIS APPLIANCE IS NOT SUITABLE FOR POOL, SPA POOL OR SOLAR BOOSTER Combustion air and surrounding air APPLICATION. ▶ To avoid corrosion, the combustion NOT SUITABLE FOR COMMERCIAL air and surrounding air must be free BOOSTING OF A WARM WATER...
  • Page 5: Technical Characteristics And Dimensions

    Water filter on the inlet water supply There are various causes of a low flow rate including, but not Economical limited to: Only heating water when required, the Bosch range is • Low flow tapware extremely economical to run. •...
  • Page 6: Dimensions

    Technical Characteristics and Dimensions Dimensions Fig. 2 [1] Top flue [5] Cold water inlet [2] Front cover [6] Gas inlet [3] Inspection window [7] Hot water outlet [4] Wall mounting point [8] Access panel Dimensions (mm) Weight (kg) TF250 TF400 Table 4 Dimensions Pilot Ignition –...
  • Page 7: Technical Characteristics

    Technical Characteristics and Dimensions Technical characteristics Technical characteristics Units TF250... TF400... Gas Consumption Nominal Gas Consumption MJ/h Ø burner injector 1.20 (NG) 1.30 (NG) 0.75 (LPG) Supply pressure flowing Natural gas (When operating) 1.13 1.13 LP gas (When operating) Number of injectors Water data Maximum permissible pressure (Static) 1200...
  • Page 8: Regulations

    Regulations 850 mm Regulations All local by-laws and regulations pertaining to installation and use of gas appliances must be observed. This appliance must be installed in accordance with the manufacturers installation instructions, AS/NZS5601, AS/ NZS3500 and all Local Building & Gas fitting regulations. This appliance must not be installed indoors or in an enclosed space.
  • Page 9: Important Information

    Installation ▶ As the water temperature at the outlet may exceed 50 °C, a All gas appliances require adequate air temperature limiting device (such as a tempering valve) intake to ensure correct combustion. Insects must be fitted to pipework feeding sanitary fixtures used and dirt ingress may affect combustion for the purpose of personal hygiene as per AS3498.
  • Page 10: Requirements Of The Installation

    Installation Requirements of the installation location • Location must allow for safe servicing and customer operation. • Comply with the specific instructions for each State. • Side clearances to be measured from flue outlet, not wind • Install the appliance in an outdoor location where it will not baffles.
  • Page 11: Hot Water Unit Mounting

    Installation Ref. Item Minimum clearances (mm) From a gas meter (M) (see 5.11.5.9 of AS/NZS5601 for vent terminal location of regulator) 1000 From an electricity meter or fuse box [P] From a drain pipe or soil pipe Horizontally from any building structure or obstruction facing a terminal From any other flue terminal, cowl, or combustion air intake [T] Horizontally from an openable window, door, non-mechanical air inlet, or any other opening into a building with the...
  • Page 12: Water Connection

    Installation CAUTION: Isolating valve on the water inlet line must be a Gate or ¼ turn full flow Ball Valve. A Stop Valve, Duo Valve or Non-Return Valve must not be fitted. Gas connection DANGER: If local regulations are not followed, a fire or explosion could result causing property damage, personal injury, or loss of life.
  • Page 13: Commissioning 10 Litres Appliances

    Commissioning 10 litres appliances ▶ Turn off the gas to the appliance, remove the sealing screw Commissioning 10 litres appliances of the pressure test point on the right hand side of the gas valve (Fig. 9, [A]) and attach a manometer.
  • Page 14: Conversion To A Different

    Commissioning 10 litres appliances 9708069951-9.1V Fig. 10 Burner pressure test point ▶ Turn on gas to the appliance and relight the pilot. Fig. 11 Burner pressure adjustment ▶ Ensure water control knob is wound fully clockwise Conversion to a different type of gas (minimum flow) and gas control slide set to the right It is not recommended to convert these units to a different type (maximum gas flow).
  • Page 15: Commissioning 16 Litres Appliances

    Commissioning 16 litres appliances ▶ Turn screw clockwise to reduce pressure, anticlockwise to Commissioning 16 litres appliances increase. Commissioning MUST be carried out upon installation. Before starting up the heater CAUTION: ▶ Initial startup must be performed by an authorised gas fitter who will provide the customer with all the necessary information for optimum operation of the gas heater.
  • Page 16: Burner Pressure Adjustment

    Commissioning 16 litres appliances Thermostat calibration ▶ Using a flow cup, adjust the flow rate using the hot tap (or if using alternate method, use ball valve on outlet) to 6l/min. ▶ Allow unit to run for 1 minute and using a thermometer, measure the hot water temperature.
  • Page 17: Operating Instructions

    Operating instructions For lower water temperature (Fig. 20). Operating instructions ▶ Slide to the left will give lower water temperature and use less gas. Procedure to light 10 Litres appliance 7.1.1 Lighting the appliance ▶ Press button fully and keep it pressed. High flame flame...
  • Page 18: Procedure To Light 16 Litres

    Operating instructions Procedure to light 16 Litres appliance 7.2.1 Lighting the appliance ▶ Press button fully and keep it pressed. Fig. 26 6720886398-002.1 Fig. 23 ▶ After a few seconds press igniter button. 6720886398-003.1 Fig. 24 ▶ Release button after approx. 10 seconds. If the flame does not stay alight.
  • Page 19: Maintenance

    ▶ Only use original replacement parts. Maintenance must only be performed by a qualified technician. Maintenance information is contained in a service manual available to licenced technicians upon request from Bosch. Service checklist Done Water Valve 1.1 Diaphragm, replace if required.
  • Page 20: Troubleshooting

    The following chart offers possible Some further trouble shooting advice may be found at http:// solutions to problems. www.bosch-thermotechnology.com.au In most instances it is advisable to have a technician attend and Problem Cause Solution Appliance does not light.
  • Page 21 Troubleshooting Problem Cause Solution Not hot enough Insufficient gas supply (pressure/pipe Requires a service technician to inspect sizing). and test gas supply pipes/pressures and recommission. Consumer gas and water controls. Adjust gas and water controls, refer to temperature adjustment section. LPG gas cylinders may be empty/ undersized.
  • Page 22: Environmental Protection

    Environmental protection Water quality Environmental protection is a basic company strategy of All Bosch water heating appliances are constructed from high Bosch. The quality of our products, profitability and quality materials and components, and all are certified for environmental protection are equal-ranking goals for us. Laws...
  • Page 23: Warranty Details

    Guarantees Act 1993 NZ in respect of your product. Warranty Bosch warrants, at its option, to repair or replace your water heater or relevant part thereof (Product) if such Product are faulty or defective in manufacture or materials during the warranty period specified below.
  • Page 24 These warranty terms cannot be amended except in writing by an authorised officer of Bosch. • The warranty only applies to Product installed for an end user in Australia or New Zealand and purchased from Bosch or from a reseller where the Product have been originally sold by Bosch.
  • Page 25 It is therefore critical that all warranty claims are promptly submitted to Bosch as soon as the product fails, and in any event before the end of the warranty period.
  • Page 26 Bosch will not disclose any personal information to third parties other than for the Purpose or except as required by law. An end user has the right to access the personal 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.
  • Page 27 Notes Pilot Ignition – 6 720 886 398 (2021/02)

This manual is also suitable for:

Pilot ignition tf400 series

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