Worcester 7735600658 Installation And Maintenance Instructions Manual Download Page 1

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6721852556 (2022/11) GB

Installation and maintenance instructions for specialists

Heat Interface Unit

Greenstar

HIU / HIU E / HIU KE

Draft - 24.11.22

Summary of Contents for 7735600658

Page 1: ...6721852556 2022 11 GB Installation and maintenance instructions for specialists Heat Interface Unit Greenstar HIU HIU E HIU KE Draft 24 11 22...

Page 2: ...mples wiring the control unit 11 6 4 Cable preparations 12 6 5 Connecting and securing the cable 12 7 Commissioning 13 7 1 Filling flushing and venting the system 13 7 2 Adjusting the control unit 14...

Page 3: ...erating correctly HHealth and safety The appliance contains no asbestos and no substances have been used in the construction process that contravene the COSHH Regulations Control of Substances Hazardo...

Page 4: ...ircuit primary side 7 Heating circuit plate heat exchanger brazed stainless steel 8 Differential pressure control valve do not change adjusting screw optional 9 Flow temperature sensor NTC for heating...

Page 5: ...this case the quantity of heat is not recorded by the heat meter accessory 12 If the bypass valve is installed the electronic bypass function must not be selected in the room controller and the jumpe...

Page 6: ...tipulated by attaching these markings The complete text of the Declaration of Conformity is available on the Internet worcester bosch co uk 3 Regulations Observeupdatedregulationsorsupplements Thesere...

Page 7: ...underfloor heating circuit 10 K 4 2 Pipework installation Any plastic pipe work used on the central heating system must have a polymeric oxygen barrier coating Carryoutapipenetworkcalculationtodeterm...

Page 8: ...ust be filled using a WRAS approved filling loop See the following figure Make sure the heating system is treated using a suitable inhibitor Appendix Specifications Mount filling loop between the pipe...

Page 9: ...vice The following hole patterns are printed on both sides of the drilling template Installation on finished wall wall mounting bracket at top mounting plate at bottom Installation on unfinished wall...

Page 10: ...hing live electrical parts can cause an electric shock Before installing accessories Disconnect the power supply to the heat generator building management system and any other BUS systems all poles an...

Page 11: ...t accessories to the control unit Connection Function Cables wires Heating pump only with HIU with integrated pump Phase 63 brown PEN conductor N blue Earthing green yellow Turbine DHW flow rate Red 4...

Page 12: ...hen stripping the cables that copper strands do not fall into the module Strip the cable so that the earth conductor is longer than the other wires Fig 25 Cable preparations here power cable 6 5 Conne...

Page 13: ...circuit pump if required 4 Adjust the room control for the heat interface unit and the heating circuit if room control is installed 5 Fill out the commissioning checklist 7 1 Filling flushing and ven...

Page 14: ...ult of pressure fluctuations as well as solution and degassing processes After 1 2 weeks vent the system again and top up if required Vent at every highest point in the system 7 2 Adjusting the contro...

Page 15: ...ngs Momentary presses of the selection button will cycle through the available pump curves After 10 seconds of inactivity the selected setting will be activated To change the setting press and hold th...

Page 16: ...ently measured data Transmission frequencies 434 MHz transmission power EN 300 220 2V3 2 1 10mWe r p 868MHz transmissionpower EN300 220 2 V3 2 1 25mW e r p Encrypted protocol Real Data Radio or Open M...

Page 17: ...ut 2 Cumulative value pulse input 2 Value of pulse L P 4 3 Pulse output 1 Value of pulse L P 4 4 Pulse output 2 Value of pulse L P Window 1 Window 2 Window 3 Window 4 6 1 LOG Date 1 Energy Max flow ra...

Page 18: ...in countries where waste electrical and electronic equipment regulations apply e g UK Waste Electrical and Electronic Equipment Regulations 2013 as amended These regulations define the framework for t...

Page 19: ...tion maintenance 1 2 3 4 5 6 Date Average return temperature on primary side __________ C __________ C __________ C __________ C __________ C __________ C Secondary heating T __________ C __________ C...

Page 20: ...interface unit Open the air vents at the top of the desired circuit Close the air vents again after draining Turn the drain valve 1 anti clockwise to open 2 Fig 39 Drain point connection To drain the...

Page 21: ...42 Heating system circulation pump NTC WW sensor and thermal overload protection accessory Drain DHW circuit completely To replace the sensor unplug the connecting lead from the sensor 1 Remove the r...

Page 22: ...w 1 on the holder Ease forward and then lift up the expansion vessel 2 out of the connector and foam insulation Fig 46 Expansion vessel removal Flow turbine flow limiter Drain DHW circuit completely U...

Page 23: ...n reliefs 11 Troubleshooting 11 1 Central Heating trouble shooting guide 6720808926 36 1Wo 1 5 4 3 7 6 2 3 8 2 6720808926 37 1Wo 1 2 3 4 5 6 6 6 6720808926 53 1Wo Problem Possible cause Possibly solut...

Page 24: ...ustanyinstalledflowregulatingvalvesattheheatinterfaceunittoobtainthecorrect differential pressure Increase the supply differential pressure on the system CentralHeatingflow temperature too high HIU co...

Page 25: ...f necessary Electronic keep warm function Adjust by pass valve Replace if necessary Faulty DHW control valve or dirt insidevalvebodycausinglowflowor no flow though district supply circuit Check that c...

Page 26: ...sor error Bypass DHW and DHW circulation pump functions are disabled Red PWM signal indicates a DHW control valve fault By pass DHW and circulation pump functions are disabled Yellow Supply return tem...

Page 27: ...lyze the distribution of our products and to provide individualized information and offers related to the product art 6 1 sentence 1 f GDPR UK GDPR To provide services such as sales and marketing serv...

Page 28: ...onsumption W 3 1 Appliance protection rating IP X4D Primary circuit 65 C1 1 DHW temperature 40 C with 30 K increase 70 C2 2 DHW temperature 45 C with 35 K increase 80 C3 3 DHW temperature 50 C with 40...

Page 29: ...y 11 Flow temperature sensor NTC primary circuit 12 Circulating pump 13 Flow temperature sensor NTC heating circuit 14 Heating control valve 15 DHW control valve 16 Return temperature sensor NTC heati...

Page 30: ...0 3 0 2 9 2 8 2 7 2 6 2 5 2 4 2 3 2 2 2 1 2 0 1 9 1 8 1 7 2 8 3 3 3 4 2 7 2 5 2 4 2 2 2 1 2 0 1 9 1 8 1 7 1 6 1 5 00100 001 34535 Kv 1 7 m hr Kv 1 3 m hr Kv 1 3 m hr Kv 1 1 m hr l s l h 200 225 250 30...

Page 31: ...100 150 200 70 60 50 40 30 20 15 8 9 10 7 6 5 4 3 2 1 5 0 7 0 8 0 9 1 0 6 0 5 90 80 70 60 50 40 30 20 15 10 9 8 7 6 5 4 3 2 1 5 1 0 9 0 8 0 7 0 6 0 5 100 90 80 70 60 50 40 30 20 15 10 9 8 7 6 5 4 3 2...

Page 32: ...Kingdom Tel 0330 123 9559 worcester bosch co uk TECHNICAL SUPPORT 0330 123 3366 RENEWABLE SUPPORT 0330 123 9229 CONTROLS AND CONNECTIVITY TEAM 0330 123 3641 APPOINTMENTS 0330 123 9339 SPARES 0330 123...

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