Bosch GWH15 Installation And Operating Manual Download

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Installation and Operating Manual

Gas instantaneous water heaters

Therm 4000 S

6720813351-00.1V

GWH12/15/18 CTD E23/31 F6 O...

6 720 819 528 (2016/02) ZA

Read installation manual prior to installation of this unit!
Read user manual before putting this unit in operation!

Observe the warnings in the manuals!
The installation room must fulfill the ventilation requirements!

Installation by an authorised person only!

Summary of Contents for GWH15

Page 1: ...15 18 CTD E23 31 F6 O 6 720 819 528 2016 02 ZA Read installation manual prior to installation of this unit Read user manual before putting this unit in operation Observe the warnings in the manuals The installation room must fulfill the ventilation requirements Installation by an authorised person only ...

Page 2: ... 13 5 2 1 Regulations concerning the installation site 13 5 3 Minimum distances 13 5 4 Fitting wall mounting bar 14 5 5 Fitting the appliance 14 5 6 Water connection 14 5 7 Gas connection 15 5 8 Altitude of installation site region 15 5 9 Remote control connection 15 5 10 Commissioning of the appliance 16 6 Electrical connection only by qualified contractors 16 6 1 Connecting the power cable 17 6 ...

Page 3: ... the building Prevent anyone from entering the building Wellawayfromthebuilding callthefirebrigade policeand gas supplier Use as per regulations The appliance may only be used for the production of DHW for human consumption in domestic installations or equivalent with intermittent use The appliance can only be installed outdoors Any other type of use is deemed improper No liability is accepted for...

Page 4: ...uipment Have any work carried out only by an authorised contractor Do not remove the appliance case Do not modify the appliance or other parts of the heating system in any way Electrical work Electrical work must only be carried out by a qualified electrician Before starting electrical work Isolate the mains electrical supply and secure against unintentional reconnection Check for zero potential A...

Page 5: ...e documentation Remote control Anti freeze kit 2 4 Rating plate The rating plate is located on the outside of the appliance on the bottom It contains details of the output of the appliance the order number the approval data and the date of manufacture in encoded form FD 2 5 Description of appliance Room sealed wall mounted appliance Remote control with multifunctional display panel Appliance for o...

Page 6: ...6 02 Therm 4000 S 6 Product details 2 7 Dimensions and minimum clearances Fig 1 Dimensions in mm B C 230 A 583 6720813351 01 1V 10 10 A B C GWH12 300 568 170 GWH15 300 568 170 GWH18 364 568 175 Table 5 Dimensions in mm ...

Page 7: ...rmofuse 8 Hot water temperature sensor 9 Water outlet 10 Connecting lead with plug 11 Remote control 12 Combustion gas collector 13 Anti freeze kit 14 Ignition electrode 15 Gas pressure head in the burner 16 Cold water temperature sensor 17 Water flow sensor 18 Control box 19 Gas valve 20 Water inlet 21 Incoming gas pressure head 22 Gas 10 6720813351 02 1V 22 18 20 21 6 7 1 5 8 9 12 15 19 3 13 16 ...

Page 8: ...de 4 Supply 5 Connection for anti freeze kit 6 Connection for remote control 7 Electrovalve 1 8 Electrovalve 2 9 Electrovalve 3 10 Electrovalve 4 11 Thermofuse 12 Water flow sensor 13 Air temperature sensor of the box 14 Outgoing water temperature sensor 15 Incoming water temperature sensor 6720804089 10 1V 1 3 2 4 6 7 8 9 10 11 12 13 14 15 230 V AC M1 5 ...

Page 9: ...al gas G20 kPa 2 2 2 LPG G30 kPa 2 8 2 8 2 8 Gas supply rate Natural gas G20 kg h 2 4 2 9 3 6 LPG G30 kg h 1 8 2 2 2 7 Data relating to the water Maximum admissible pressure 2 2 Considering the effect of the dilation of the water this value must not be exceeded pw psi 170 170 170 Minimum operating pressure pwmin psi 1 5 1 5 1 5 Start up flow l min 2 2 2 2 2 2 Maximum flow corresponding to a temper...

Page 10: ... Open the water shut off valve of the installation 3 3 Switching the appliance on off Connect Press the button The cover shows the desired water temperature Fig 6 Disconnect Press the button Open all the water and gas locking devices CAUTION Burns In the flue exit area high temperatures may be reached Do not touch the flue exit area while in operation 6720806426 06 1V 6720806146 02 1V 1 2 5 3 4 CA...

Page 11: ...ds to fix the temperature When the display stops flashing the temperature is set in the memory Select the temperature memorised To select the temperature memorised Press the programming button for 1 second The display shows the temperature previously memorised and this goes on to be the selected temperature 3 6 Draining the appliance If draining the appliance is required the following process shou...

Page 12: ... tank 5 Safety unit The anti freeze device protects the appliance against possible risks of freezing Do not use corrosive and or abrasive detergents DANGER Explosion Always shut off the gas tap before any work on the gas pipe parts 6720811163 03 1V 1 The installation electrical connection the installation of the gas the connection of the flue air intake pipes and the initial start up are operation...

Page 13: ...s Substances classed as corrosion promoting include halogenatedhydrocarbonswhichcontainchlorineandfluorine compounds They may be found insolvents paints adhesives aerosol propellants and household cleaners for example If these conditions cannot be guaranteed a different site must be chosen for the air intake Surface temperature The maximum surface temperature of the appliance is below 85 C That me...

Page 14: ..._______________ ______________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ______________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ______________ ___________________ ___________________ ___________________ ___________________ ___________________...

Page 15: ...ng gas of the appliance Installation with connection to a gas supply network Inthecaseofaninstallationwithconnectiontoagassupply network you must use metal tubes in accordance with the applicable standards To make the connection between the gas supply network and the water heater you must use the accessory supplied Tighten the coil in the incoming gas tube Usetheendincoppertodotheweldingtothetubef...

Page 16: ...ime is exceeded If it is not possible to obtain the flame within the safety interval stipulated a safety shut down is carried out The presence of air inthe gas supplytube initial start up ofthe applianceorstart upafterlongperiodsofinactivity maycause a delay or difficulty in the ignition In this case and if the attempt at ignition is too long the safety devices block the operation and it is necess...

Page 17: ...metime and for 3 seconds Fig 16 Service function Display with indication P2 The service function is activated 7 3 Adjusting the appliance 7 3 1 Access to the pressure heads Remove the front of the appliance see page 20 CAUTION Electrical storm The appliance must have an independent connection in the electric box protected by a differential safety switchof30mAandgroundline Inareas with frequent ele...

Page 18: ... with indication P1 The adjustment of the maximum gas flow is finalised 7 3 3 Adjusting the minimum flow Parameter P2 Press until the display shows P2 Press the button Display with indication E Press until the display shows L2 Press the button Open a hot water tap The appliance is in the position for adjustment of the minimum gas flow Press or until the pressure gauge shows the value indicated in ...

Page 19: ...sion kits are supplied with fitting instructions 8 Maintenance only by qualified contractors To guarantee that the consumption of gas and the emission of gas are maintained at the best values we recommend that the appliance be inspected every year and if necessary maintenance works be carried out Your appliance should only be attended to by a Bosch Technical Assistance Centre Only use original rep...

Page 20: ...the burner each year and clean it if necessary If it is very dirty grease soot Dismantle the burner Use a brush and clean the surface of the flutes Blow the flutes using a jet of air Water filter Close the water valve inlet Loosen the cold water tube Use a key and carefully pull the water filter Replace the water filter Fig 19 8 3 Replacement of fuses control box Loosen the fixing screw of the con...

Page 21: ...pecified Check water filter CF C1 Blockage of gases coming out of the combustion Air flow sufficient for start up Remove dirt or any other impediment in the flue intake pipe Close and open a hot water tap If the problem persists call a qualified contractor E0 Breakdown in the electrical box Press the reset button If the problem persists call a qualified contractor E1 Hot water temperature sensor d...

Page 22: ...r 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 The various assemblies can be easily dismantled and synthetic materialsaremarkedaccordingly Assembliescanthereforebe sorted by composition and passed on for recycling or disposal F9 Safety ...

Page 23: ...by unauthorized people When the appliance or parts present changes or malfunctions due to misuse of unauthorized people When the operation and use of the appliance is done under conditions which are not allowed in the installation or user s manual When there are changes to the warranty terms and breakage of seals When damages are caused by transportation or accidents When damages are caused by ina...

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