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DOMESTIC HOT WATER HEAT PUMP

 

 
 

 
 
 

 
 

         

 

 
 
 
 
 
 

 
 

This document is confidential and restricted to exclusive use by the official technical 

assistance of Bosch in the countries of destination of this product. 

 
 
 
 
 

 

 

MANUAL FOR AFTER SALES TECHNICIANS 

 

Summary of Contents for AD HP270-1

Page 1: ...HOT WATER HEAT PUMP This document is confidential and restricted to exclusive use by the official technical assistance of Bosch in the countries of destination of this product MANUAL FOR AFTER SALES TECHNICIANS ...

Page 2: ...2 PRE COMMISSIONING CHECK LIST 11 3 INSTALLATION ACCESSORIES VENTING 13 4 VENTILATION ACCESSORIES 17 5 COMPONENTS CHARACTERISTICS AND REPAIRS 27 5 2 COMPONENTS AND CHECKS IN THE STORAGE TANK 30 5 3 HYDRAULIC CONNECTIONS COLD WATER INLET 31 5 4 HYDRAULIC CONNECTIONS RECIRCULATION 33 5 5 HYDRAULIC CONNECTIONS OPTIONAL ACCESSORIES 35 5 6 HYDRAULIC CONNECTIONS HOT WATER OUTLET 36 5 7 STORAGE TANK ELEM...

Page 3: ...ration modes normal mode only heat pump operation combi mode heat pump and electric resistance operation electric heater mode only electric resistance operation The heat source can be the waste heat as referred but also the potential energy of unheated rooms or the air discharged from rooms with high humidity such as bathrooms toilets and laundry rooms 1 1 General description This model of domesti...

Page 4: ...re The efficiency increases as the surrounding air temperature increases Best applications of a heat pump Replacing electric water heaters or storage tanks In residences with 4 or more people with high hot water consumption In commercial applications where heat can be extracted from a hot plant room In locations with humid conditions like laundries Taking air from outside especially to walls facin...

Page 5: ...nding indoor air Waste Heat is a useful and free heat to use in this kind of air source Heat Pumps Pict 4 Application 1 Application 2 Dehumidified air in laundry rooms can be used to dry the ambient air and prevent moisture damage caused by dampness Pict 5 Application 2 ...

Page 6: ... dehumidified in the hot water heat pump and blown into the room again This air ducting in the heated section of the system should be insulated with water proof insulation to prevent condensates creation Pict 6 Application 3 Application 4 A pipe duct system with integrated by pass flap allows variable use of the heat contained in the air extracted from outdoor or indoor location for hot water prep...

Page 7: ...an integrated internal coil for external energy source a standing or wall hung boiler or even solar energy installation Picture 8 shows the internal constitution and main components 1 Fan and evaporator group 2 Compressor 3 Condenser Plate Heat Exchanger 4 Filter dryer and expansion valve 5 Water circulation pump 6 Storage tank 7 Electrical resistance for backup 8 Internal coil for external backup...

Page 8: ...ng information stickers Packaging label Pict 9 10 or 11 Type Plate appliance identification type plate label Pict 15 Packaging label includes following information Brand Recycling and certification stamps Order number Countries of destination Product designation Weight Bar code Transport and storage conditions Production date Pict 9 Packaging Label Junkers ...

Page 9: ...he end user installation place it is strongly recommended the use of special and adequate transportation devices in order to ensure the minimum tilting even during transport in stairs and or other obstacles without damaging the appliance or any particular component Attention Before switching the appliance on ensure 30minutes rest time in the final vertical installation position ...

Page 10: ...xample of use Attention if the appliance is tilted more than 20º when touching the floor the bottom of the tank cover can be damaged and the feet can be deformed The type plate has the main important information about the product identification indispensable for installers and after sales technicians ...

Page 11: ...order number FD Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 101 102 103 104 105 106 107 108 109 110 111 112 2012 201 202 203 204 205 206 207 208 209 210 211 212 2013 301 302 303 304 305 306 307 308 309 310 311 312 Table 1 Production date FD codification 2 2 Pre commissioning check list After removing the packaging check the unit visually and take out the top EPP protection to perform a vi...

Page 12: ...een signed off Pipe work Y N Pipe work has been correctly installed and secured Pipe work is correctly insulated Drainage Y N Pour some water into the siphon of safety and condensate drainage pan Ensure that the water flows through the outlet and drainage hose without leaking Electrical check list Wiring Y N Carry out tests required under the wiring regulations Do a polarity test Electrical code c...

Page 13: ...leshooting Chapter Instructions check list Use of the system Y N Demonstrate how to set the controls and different modes correctly Demonstrate how to check pressure relief valves Advise for service requirements Recommend reading the operating instructions manual Provide a service checklist Provide the warranty Provide contact names and numbers in case of a need Recommend a periodical disinfection ...

Page 14: ...air temperature of 10ºC to 35ºC Pict 16 Installation without ducts unducted air flow In case it is necessary it is possible to get air from another source connecting ducts to the inlet and outlet with a suction and discharge diameter of 160mm The total maximum equivalent length 1 should not be more than 6m and the pressure losses should be limited in maximum to 80 Pa 1 Equivalent length is the sum...

Page 15: ...nsured The ambient air temperature for operation must be within 5ºC and 35ºC In case of ducted installation to outside it is strongly recommended to use the wall facing the best sun exposition condition south in case of Europe a indoor wall b outdoor wall Pict 18 Ducts configuration Ducts can be assembled horizontally or vertically Pict 19 Possible ducts orientation vertical horizontal passage ...

Page 16: ...720803522 AD HP270 1 2012 03 en Pict 20 Air intake and exhaust from outside with flexible pipe DN160 and respective wall and roof penetration Following suggested accessories are marked with Bosch original quality label ...

Page 17: ...ion for vertical air pipes 7 719 003 366 Installation Advice 6 720 618 377 4 2 Wall penetration for horizontal air pipes 7 719 003 334 Installation Advice 6 720 618 378 4 3 Assembly tool Ø1 160 mm 7 746 901 002 Installation Advice 6 720 619 819 4 4 Air Duct with 500 mm length Ø1 160 mm 7 746 900 698 Installation Advice 6 720 619 801 ...

Page 18: ... 900 702 Installation Advice 6 720 619 802 Air Duct with 2000 mm length Ø1 160 mm 7 746 900 706 Installation Advice 6 720 619 803 4 5 Ventilation Elbow Ø1 160 mm 45 7 746 900 690 Installation Advice 6 720 619 799 4 6 Ventilation Elbow Ø1 160 mm 87 7 746 900 694 Installation Advice 6 720 619 800 ...

Page 19: ... 7 746 900 714 Installation Advice 6 720 619 805 4 8 Inspection elbow Ø1 160 mm 7 746 900 718 Installation Advice 6 720 619 806 Table 2 Acessories List in PP 4 1 Instruction for Horizontal wall penetration accessory installation Pict 21 Photo of the horizontal wall penetration accessory ...

Page 20: ...Page 20 from 40 6720803522 AD HP270 1 2012 03 en ...

Page 21: ...Page 21 from 40 6720803522 AD HP270 1 2012 03 en 4 2 Instruction for Vertical wall penetration accessory installation Pict 22 Photo of the vertical wall penetration accessory ...

Page 22: ...Page 22 from 40 6720803522 AD HP270 1 2012 03 en ...

Page 23: ...Page 23 from 40 6720803522 AD HP270 1 2012 03 en 4 3 Instruction for use of assembly tool 4 4 Instruction for air duct installation ...

Page 24: ...Page 24 from 40 6720803522 AD HP270 1 2012 03 en 4 5 Instruction for 45º Elbow installation 4 6 Instruction for 90º Elbow installation ...

Page 25: ...Page 25 from 40 6720803522 AD HP270 1 2012 03 en 4 7 Instruction for T inspection accessory installation ...

Page 26: ...Page 26 from 40 6720803522 AD HP270 1 2012 03 en 4 8 Instruction for inspection elbow accessory installation ...

Page 27: ...ialized training regarding the specific country legislation in this matter For the Hydraulic connections the following information from installation manual must be checked by the technician Cold water Inlet existence of accessory to convert from tank connection to pipe diameter Recirculation in case of no use this connection must be sealed External Coil in case of no use one of the connections sho...

Page 28: ...otection criteria can be used Position in Pict 10 Component Image Comments 4 5 Cut off valve with anti return function Cut off valve with anti return function 1 7 Expansion Vessel 12 liters Vessel capacity depends on water volume temperature pressure relief valve and nominal water pressure See recommendation on table below Expansion Vessel 18 liters Expansion Vessel 25 liters 6 Pressure relief val...

Page 29: ...r hydraulic connections Apart of the available accessories supplied by Bosch other important accessories must be considered by the installer to complete installation according available products in destination country It s strongly recommended verify functionality and existence of Expansion vessel available volumes of 12 18 and 25 liters Pressure relief valve up to 10 bar Cut Off Valve Hot Water O...

Page 30: ...onnection representation 5 2 Components and checks in the storage tank Before any intervention the installer must read the installation manual in order to understand the appliance specifications and avoid any faulty installations In case of any error detection by the service technician this must be communicated and solved before heat pump unit is installed and started up Tank Characteristics Ename...

Page 31: ...rket valves with both functions Source caleffi Pict 28 Example of a ball valve with non return function integrated Filter in the cold water line In case of water with a high content of mineral substances or other types of dirtiness it is recommended to use an appropriate filter consult a specialist Source caleffi Pict 29 Example of a line filter 1 2 3 4 1 Cold Water Inlet 1 2 Coil connections for ...

Page 32: ... pressure relief valve must be installed in the inlet in order to resist longer as it is not permanently submitted to high temperatures Source caleffi a Pressure relief valve b example of an installation Pict 30 Example of installation of the pressure relief valve in the inlet Source caleffi Pict 31 Example of a vertical pressure relief valve Water Drain The wasted water from condensates must be c...

Page 33: ...temperature range and pressure relief actuation value and the installation manual shows the correspondent recommended values Pict 33 Example of expansion vessel installation 5 4 Hydraulic connections recirculation The recirculation allows instantaneous hot water availability in each consumption point without need of consuption of the cold water in the pipes between the storage tank and the tap In ...

Page 34: ...s Pict 35 Example of an installation with recirculation To avoid energy losses it is very important to control the working time of the recirculation pump to minimize running costs and increase efficiency of system The technician shall check which kind of pump shall be used in this domestic hot water system use only bronze or plastic pumps The control of the operation can be done by a timer by a th...

Page 35: ...applied in the cold water line to prevent the risk of freeze and in the hot water line to avoid thermal losses Source Armaflex Pict 37 Example of insulation application and its thermal losses reduction 5 5 Hydraulic connections Optional accessories Pressure Reducer Valve To avoid several activations of the temperature and pressure relief valve we recommend the installation of a pressure reducer va...

Page 36: ...otable water economy in both cold and hot water outlets Constant distribution for multiple points of use Constant distribution even when the pressure varies Source caleffi Pict 39 Example of flow limiter installation in the taps and showers 5 6 Hydraulic connections Hot Water Outlet Thermostatic valve A thermostatic valve should be present in the outlet of hot water especially when using an extern...

Page 37: ...installation with solar or boiler In case the coil will not be used do not remove the plugs from the coil inlet and outlet apertures this will avoid thermal losses due to the contact of the air in the coil with the surrounding hot water in the tank The available pocket for external sensor installation is prepared to have installed the available fixation systems of sensors in TT to ensure correct c...

Page 38: ...5 non return valve 6 pressure relief valve 7 expansion vessel 8 drain valve 9 HP 270 10 hot water distribution 11 siphon 12 pump station 13 solar liquid recipient 14 mixing valve 15 electrical backup Pict 42 Heat Pump with solar installation 1 standing floor boiler 2 circulation pump 3 cold water inlet 4 cut off valve 5 non return valve 6 pressure relief valve 7 expansion vessel 8 drain valve 9 HP...

Page 39: ... 44 Heat Pump with solar installation and existent backup equipment by boiler or gas water heater with solar kit between energy sources Pict 45 Heat Pump installed in parallel Pict 46 Heat Pump installed in parallel but with possibility to work in series ...

Page 40: ...use Valve 1 5 4 Open Valve 2 3 Close Pict 47 Heat Pump Buderus integrated with solar installation and hot water recirculation Pict 48 Heat Pump Buderus integrated with boiler installation with central heating Bosch Termotecnologia S A TT GEH STI International training and technical support Aveiro Plant ...

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