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6 720 810 560 (2016/06)

Optiflow Professional

24 | Warranty details

10

Warranty details

Robert Bosch (Australia) Pty Ltd
(Bosch) Manufacturer's Warranty
(Applicable for purchases from 1 January 2012)

All Bosch hot water units are carefully checked, tested and 
subject to stringent quality controls.

1. Warranty

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 
charge, if it becomes faulty or defective in manufacture or 
materials during the warranty period also stated in clause 2. 
This warranty is offered in addition to any other rights or 
remedies held by a consumer at law.

2. Warranty periods & coverage
(a)

 Domestic applications: 3 years (parts and labour)

(b)

 Heat exchangers used in domestic applications: 12 years 

(parts only)

(c)

 Commercial applications: 12 months (parts and labour)

(d)

 Heat exchangers used in commercial applications: 12 

months (part and labour)

All warranty periods commence on the date of purchase of the 
hot water unit by the end-user. However, where the date of 
purchase by the end-user is more than 24 months after the 
date of manufacture, all warranty periods will automatically 
commence 24 months after the date of manufacture.

3. Warranty exclusions

This warranty is VOID if any damage to or failure of the hot 
water unit is caused wholly or partly by:

(a)

 faulty installation

(b)

 neglect, misuse, accidental or non-accidental damage, 

failure to follow instructions

(c)

 use of the unit for purposes other than which it was 

designed or approved

(d)

 unauthorised repairs or alterations to the unit without 

Bosch's consent

(e)

 use of unauthorised parts and accessories without Bosch's 

consent

(f) 

use of non-potable water or bore water in the hot water unit 

(see product instructions for further details)

(g) 

continued use after a fault becomes known or apparent.

This warranty DOES NOT include:

(a)

 costs of consumables or accessories

(b) 

wear and tear, normal or scheduled maintenance

(c)

 to the extent permitted by law, any damage to property, 

personal injury, direct or indirect loss, consequential losses or 
other expenses

(d)

 changes in the condition or operational qualities of the hot 

water unit due to incorrect storage or mounting or due to 
climatic, environmental or other influences.

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 
covered by this warranty and must be paid by the owner or user 
of the hot water unit.

4. Warranty conditions
(a)

 Proof of purchase may be required.

(b)

 The hot water unit must be installed by an authorised and 

licensed installer.

(c)

 Proof may be required of the date of installation and correct 

commissioning of the hot water unit has been carried out to 
Bosch's satisfaction (such as a certificate of compliance).

(d)

 Repair or replacement of the hot water unit or any parts 

under this warranty does not lengthen or renew the warranty 
period.

(e)

 This warranty is not transferable and is only offered to the 

original purchaser of the hot water unit.

(f)

 No employee or agent of Bosch is authorised to amend the 

terms of this warranty.

(g)

 This warranty only applies to Bosch hot water units 

purchased from an authorised reseller and installed in Australia 
or New Zealand.

(g)

 To the extent that any condition or warranty implied by law 

is excludable, such condition or warranty is excluded.

5. How to lodge a warranty claim and warranty procedure
(a)

 Warranty claims must be made with the Bosch Customer 

Contact Centre (Australia: ph 1300 307 037; New Zealand: ph 
0800 543 352). Please be ready to provide the model and 
serial numbers, date of installation, purchase details and a full 
description of the problem. Warranty claims must be made 
before the end of the warranty period.

(b)

 All warranty service calls must conducted by an authorised 

Bosch service agent.

(c)

 Invoices for attendance and repair of a hot water unit by 

third parties not authorised by Bosch will not be accepted for 
payment by Bosch.

6. Privacy Act 1988 (Cth)

A customer's personal information collected during warranty 
claims may be used for the provision of customer support, for 
the provision of information about products and services and 
for other marketing activities undertaken by Bosch and its 
Bosch Service Agents who are authorised to carry out warranty 
repairs on behalf of Bosch (Purpose). Bosch is committed to 
protecting the privacy of its customers' personal information. It 
will act in compliance with the National Privacy Principles and 

Содержание Optiflow Professional GWH 20

Страница 1: ... CTD E23 31 F5 L 6 720 810 560 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 ...

Страница 2: ...nnection 14 4 7 Gas connection 14 4 8 Installation of flue accessories 15 4 9 Altitude of installation site 15 4 10 Electrical connection only by authorised technicians 16 4 10 1 Connecting the power cable 16 4 11 Commissioning of the appliance 16 4 12 Changing the setpoint limit temperature only for 55 C preset appliances 16 4 13 Delivery temperature calibration 16 5 Regulating the gas only for a...

Страница 3: ...ety inspection every two years The installer is responsible for the safety and environmental compatibility of the installation according to local regulations TheOwner Userisresponsibleforkeepingtheareaaround the water heater free from debris Safe access to inspect and service the water heater is the responsibility of the property owner Use only genuine Bosch spare parts Explosive and highly flamma...

Страница 4: ... inlet water pressure exceeds 800 kPa a pressure limiting valve 500kPa MUSTbefitted Thepreferablelocationfor the pressure limiting valve is at the water meter Wherethepressurelimitingvalveislessthan3metresfrom 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...

Страница 5: ...ostatic D Digital user interface E Electric ignition 23 Appliance set for natural gas 31 Appliance set for Universal LP gas F5 Tight chamber L Locked water temperature adjustment 2 3 Included Items Gas continuous flow water heater Fixing bracket Appliance documentation 2 4 Rating plate The rating plate is located on the outside of the appliance on the bottom The rating plate has the indications on...

Страница 6: ...al 6 Product details 2 7 Dimensions and minimum clearances Fig 1 Dimensions in mm Connections Water Gas A B C D E Cold Hot Nat Universal LPG GWH12 300 570 170 120 107 GWH16 364 570 175 142 137 GWH20 364 570 175 142 137 Table 4 Dimensions in mm ...

Страница 7: ...re sensor 7 Thermal fuse 8 Hot water temperature sensor 9 Hot water outlet 10 Power cord and plug 11 Combustion gas collector 12 Frost protection device 13 Ignition electrode 14 Burner pressure test point 15 Water flow sensor and Water valve 16 Electronic control unit 17 Cold water temperature sensor 18 Gas shut off valve 19 Cold water inlet 20 Gas pressure test point 21 Gas inlet ...

Страница 8: ...ectrode 4 Power supply 5 Connection for frost protection 6 Connection for remote control 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 ...

Страница 9: ...al LP gas when operating kPa 2 75 2 75 2 75 Water supply data Maximum permissible pressure static kPa 1000 1000 1000 Minimum operating pressure kPa 100 100 100 Start up flow l min 2 0 2 0 2 0 Maximum flow corresponding to a temperature increase of 25 C l min 12 0 16 0 20 0 Maximum inlet temperature C 50 50 50 Electrical circuit Power supply voltage VAC 230 230 230 Frequency Hz 50 50 50 Maximum pow...

Страница 10: ...numbers shown below Bosch 4000S coaxial flue must be used with this appliance Failure to use Bosch 4000S flue could result in appliance failure DANGER Install the flue gas pipe so that there are no leaks Non compliance with this requirement may cause combustion gases to leak through the appliance installation compartmentandmayresultinpersonal injury or death Below is a list of accessories Only use...

Страница 11: ...flue components All 4000S coaxial flue components have an internal pipe diameter of 60 mm and an external pipe diameter of 100 mm Flue Elbow Ø 60 100 90 7 736 995 079 Flue Elbow Ø 60 100 45 7 736 995 071 Flue Terminal Extension DN60 100 350mm 7 736 995 059 Flue Terminal Extension DN60 100 750 mm 7 736 995 063 Flue Terminal Extension DN60 100 1500 mm 7 736 995 067 Horizontal Condensate Trap Ø 60 10...

Страница 12: ...ing regulations Lmax Concentric pipes GWH12 GWH16 12 m GWH20 10 m Table 7 Lmax Concentric pipes GWH12 8 m GWH16 GWH20 6 m Table 8 In case of horizontal flue ensure that the installations has a fall of 3 Equivalent lengths Leq Ø Accessory Leq Min Length Ø 60 100 45 elbow Ø 60 100 90 elbow 2 m 0 375 m Table 9 DANGER Explosion Always shut off the gas valve before carrying out work on gas pipes The ap...

Страница 13: ...ance 4 2 2 Overall flue length of the installation The overall flue length may not exceed the values indicated in the tables 7 and 8 and must not be less than the values indicated in table 9 Min length In determining the overall length of the installation the equivalent length Leq of each accessory must be considered Surface temperature The maximum surface temperature of the appliance is below 85 ...

Страница 14: ...From the ground above a balcony or other surface1 1 unless appliance is certified for closer installation 300 C From a return wall or external corner1 300 D From a gas meter GM 1000 E From an electricity meter or fuse box P 2 2 Prohibitedareabelowelectricitymeterorfuseboxextends to ground level 500 F From a drain pipe or soil pipe 75 G Horizontally from any building structure 1 or obstruction faci...

Страница 15: ... distance between the end of the inlet air pipe and the facade is no greater than 30 mm Fig 7 Fig 7 Dimensions 4 9 Altitude of installation site Toensurecorrectoperationoftheappliance ataltitudesabove 500m the altitude setting must be adjusted Enter the Service function section 5 2 Display will show P2 Press until the display shows P4 Press the button Display will show E Press until the display sh...

Страница 16: ...gh 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 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 taps Reset the appliance...

Страница 17: ...Adjusting the appliance 5 3 1 Access to the test points Remove the front of the appliance Fig 9 A Air pressure test point B Gas pressure test point 5 3 2 Adjusting the maximum flow Parameter P1 Turn on the appliance using the ON OFF button Loosen the test point screw of the gas pressure test point B Connect the pressure gauge connection to the gas pressure test point B Setpoint Water temp at tap C...

Страница 18: ... sign of confirmation Press Display will show L2 Close the hot water tap Press until the display shows E Press the button Display will show P2 Simultaneously press the and for 3 seconds Display will show the temperature selected Disconnectthepressuregaugefromthetestpoints A and B Tighten the shutter screws of the test points A and B The adjustment of the minimum gas flow is complete 5 3 4 Adjustin...

Страница 19: ...ay will show P1 Press until the display shows P2 Press the button for 3 seconds The displayed value flashes as a sign of confirmation Press Factory default settings are now restored 6 Maintenance onlybyauthorisedservice technician Bosch recommend that to maintain optimum performance from this appliance servicing should be carried out by suitably licensed persons at intervals not greater than two 2...

Страница 20: ...ater inlet isolation valve Loosen the cold water pipe Carefully remove the water filter Replace with a new water filter 6 3 Replacement of the fuse electronic control unit Loosen the fixing screw of the electronic control unit Release all the connections to the electronic control unit Open the electronic control unit Replace the fuse located in the corner of the circuit board 6 4 Start up after co...

Страница 21: ...9 Hot water outlet temperature sensor is not fitted properly Low incoming gas pressure Check temperature sensor and associated connections If the problem persists call an authorised service technician 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 Ins...

Страница 22: ... and remove dirt or other impediment to good extraction EE Modulating solenoid valve disconnected Check solenoid connections If the problem persists call an authorised service technician 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 seconds Reconnect and restart the appliance If the...

Страница 23: ...rtified for compliance with relevant parts of Australian and New Zealand gas electrical 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 ...

Страница 24: ...r influences 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 coveredbythiswa...

Страница 25: ... 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...

Страница 26: ...6 720 810 560 2016 06 Optiflow Professional 26 Notes ...

Страница 27: ...6 720 810 560 2016 06 Optiflow Professional 27 Notes ...

Страница 28: ...6720810560 ...

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