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18

Operating instructions

Pilot Ignition – 6 720 886 398 (2021/02)

7.2

Procedure to light 16 Litres appliance

7.2.1 Lighting the appliance

▶ Press button fully and keep it pressed.

Fig. 23

▶ After a few seconds press igniter button.

Fig. 24

▶ Release button after approx. 10 seconds.

If the flame does not stay alight.

▶ Repeat the steps above.

If the flame stay alight

▶ Press “ON” button.

Fig. 25

7.2.2

Shutting OFF the appliance

If no hot water is to be drawn for a longer period of time.

▶ Press OFF button (Fig. 26).

Fig. 26

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Содержание TF250

Страница 1: ...Installation Manual and Operating Instructions Continuous Flow Gas Water Heaters External Models Pilot Ignition TF250 TF400 6 720 886 398 2021 02 AU ...

Страница 2: ...er 13 5 2 Remove the front cover 13 5 3 Inlet pressure adjustment 13 5 4 Burner pressure adjustment 13 5 5 Conversion to a different type of gas 14 6 Commissioning 16 litres appliances 15 6 1 Before starting up the heater 15 6 2 Remove the front cover 15 6 3 Water flow adjustment 15 6 4 Inlet operating pressure adjustment 15 6 5 Burner pressure adjustment 16 6 6 Thermostat calibration 16 6 7 Conve...

Страница 3: ...ater Notify an authorised technician Installation Assembly and Modifications The installation assembly and modifications to the heater must only be performed by an authorised installer Maintenance Thewaterheaterisrequiredtohavea service and safety inspection every two years The Installer is responsible for the safety and environmental compatibility of the installation The Owner User is responsible...

Страница 4: ...rating and user instructions before adjusting the water heater Tobeinstalledandservicedonlybyan authorised person The authorised installing person is responsible for Correct installation and commissioning of this appliance Ensuring the appliance performs to thespecificationsstatedontherating label Demonstrating the operation of the appliance to the customer before leaving Handing these instruction...

Страница 5: ...ion of an EXOGEL valve part number H707 060 151 will minimise the possibility of damage to the appliance if the water freezes Fig 1 EXOGEL valve 1 Hot water 2 Cold water 3 EXOGEL valve Low Flow Rates This gaswater heater is designed to operate at a minimum flow rate between 3 2 to 4 0 litres per minute Sufficient flow must be provided to ensure the correct operation of the appliance There are vari...

Страница 6: ... 2021 02 2 5 Dimensions Fig 2 1 Top flue 2 Front cover 3 Inspection window 4 Wall mounting point 5 Cold water inlet 6 Gas inlet 7 Hot water outlet 8 Access panel Dimensions mm A B C D E Weight kg TF250 405 845 533 240 100 21 TF400 460 936 533 240 100 25 Table 4 Dimensions ...

Страница 7: ...m permissible pressure Static kPa 1200 1200 Temperature selector in fully clockwise position Temperature rise Above incoming water temperature C 55 _ Water flow range Litres per minute l min 3 5 to 4 5 _ Minimum operating water pressure kPa 30 NG 10 LPG _ _ Minimum constant water pressure for minimum flow kPa 60 _ Temperature selector in fully anti clockwise position Temperature rise Above incomin...

Страница 8: ...iance must be installed with no obstructions to air entry openings at the front rear side or top Periodic checking of openings to ensure no blockage or obstruction of the air openings from plants debris or insects must be carried out DANGER Property damage If this appliance is to be installed on a combustible surface Use a heat shield as per AS NZS5601 The installation and the initial startup are ...

Страница 9: ...ngvalveislessthan3metresfrom the hot water unit it must be fitted in conjunction with a cold water expansion valve 700 kPa between the water heater and the pressure limiting valve Failure 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 ...

Страница 10: ...o be measured from flue outlet not wind baffles Do not obstruct the openings at top bottom and rear of appliance Maximum of 2 meters from the ground to the base of the appliance Top and bottom areas must be clear from any obstacles at least 30 cm Fig 4 Minimum clearances use as a guide only always refer to AS NZS5601 D Openable Door T Flue terminal M Gas meter I Mechanical air inlet P Electricity ...

Страница 11: ...ucture1 or obstruction facing a terminal 500 h From any other flue terminal cowl or combustion air intake T 1 500 j Horizontally from an openable window door non mechanical air inlet or any other opening into a building with the exception of sub floor ventilation W D T Appliances up to 150 MJ h input 500 k From a mechanical air inlet including a spa blower I 1500 n Vertically below an openable win...

Страница 12: ...ted to LPG cylinders to supply the correct pressure to the appliance regulator The gas pressures require setting upon installation 4 6 Testing Turnonthe gasand watervalves and check all connections for leaks If all connections are sound then follow procedures set out in Section 5 for adjustment of Gas Pressures to complete appliance commissioning CAUTION Isolatingvalveonthewaterinletlinemustbe a G...

Страница 13: ...al hot water taps open for full water flow through the unit Iftheoperatinginletpressurecannotbeachievedtheremaybe an issue with the gas supply meter NG cylinder regulator LPG orpipesizing RefAS NZS5601 Thismustberesolved before proceeding Remove manometer and tighten test point screw Fig 9 Inlet measurement test point 5 4 Burner pressure adjustment Loosen the burner test point captive screw Fig 10...

Страница 14: ...a plate table 8 Loosen the locking screw Fig 11 F and turn the knurled adjustment wheel Fig 11 E clockwise to increase or anticlockwise to decrease the pressure Raise burner pressure to the burner pressure figure See table 8 Tighten locking screw of knurled adjustment wheel Fig 11 F Turn off water heater remove manometer and tighten burner test point captive screw Fig 11 Burner pressure adjustment...

Страница 15: ...sure test point on the right hand side of the gas valve Fig 14 B and attach a manometer Turn on gas and light the pilot Static Pressures should be greater than or equal to the figures in table 9 Adjust the appliance regulator to achieve the figures in table 7 with the unit operating and several hot water taps open for full water flow through the unit Iftheoperatinginletpressurecannotbeachievedther...

Страница 16: ...g a thermometer measurethehotwatertemperature Requiredtemperature is 60 C To make adjustments loosen the locking nut fig 16 C and turn the thermostat adjustment nut fig 16 D clockwise to decrease temperature and anticlockwise to increase to achieve the required 60 C Reduce the water flow rate to 3l min allow the unit to run for 1 minute and ensure temperature does not rise above 63 C If it does re...

Страница 17: ...lgivehigherwatertemperaturebutuse more gas For lower water temperature Fig 20 Slide to the left will give lower water temperature and use less gas Fig 20 7 1 3 Consumer temperature flow adjustment Turn anti clockwise Increases flow and decreases water temperature Fig 21 Fig 21 Turn clockwise Decreases flow and increases water temperature Regulating the temperature to the minimum required value red...

Страница 18: ...d Fig 23 After a few seconds press igniter button Fig 24 Release button after approx 10 seconds If the flame does not stay alight Repeat the steps above If the flame stay alight Press ON button Fig 25 7 2 2 Shutting OFF the appliance If no hot water is to be drawn for a longer period of time Press OFF button Fig 26 Fig 26 6720886398 002 1 6720886398 003 1 6720886398 004 1 ...

Страница 19: ...ervice manual available to licenced technicians upon request from Bosch Service checklist Done 1 Water Valve 1 1 Diaphragm replace if required 1 2 Water throttle greased O ring replaced if required 1 3 Water filter cleaned replace if required 1 4 Gland oring greased replace if required 1 5 Water governor replace if required 1 6 Slow ignition cleaned 2 Gas Valve 2 1 Pilot burner cleaned 2 2 Main bu...

Страница 20: ...hrottle wound out too far Service required Push in refer to relight section Wind clockwise refer to temperature adjustment section Contact a qualified technician Smell of gas Gas leak Isolate gas supply to hot water unit Contact a qualified technician Yellow flame strong smell of gas in operation presence of soot This is normally caused by blockages in the burner causing poor combustion One of the...

Страница 21: ...eft Fluctuation in hot water temperature Insufficient flow through the hot water unit Tapware shower head does not give sufficient flow or blocked Appliance temperature set too high Change tapware to meet requirements Check for blockages of aerators restrictors Adjust gas control slide to the left Reduced water flow Blocked tapware Insufficient water supply pressure Blocked water filter Heat excha...

Страница 22: ...ed against manufacturing 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 acceptable standard The water quality limits parameters listed in the water quality table are considered acceptable and generally Australian and N...

Страница 23: ...hereof 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 Thi...

Страница 24: ...quired of 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 d...

Страница 25: ...edbyanauthorisedservicetechnicianduringnormalbusiness hours Boschwillnotaccept claims under this voluntary warranty for attendance and repair of the Product by third parties not authorised by Bosch Deadlines for Submitting Warranty Claims Boschaimstorectifygenuinequalityproblemsasapriority Thisisgenerallyachievedbyinvestigatingwhydefectiveproductshave failedandbyintroducingimmediatecorrectiveactio...

Страница 26: ... 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 Det...

Страница 27: ...27 Pilot Ignition 6 720 886 398 2021 02 Notes ...

Страница 28: ......

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