STIEBEL ELTRON LWZ 5 S Trend, Installation Manual

Page 1: ...INSTALLATION Central ventilation unit with heat recovery LWZ 8 S Trend LWZ 5 S Trend ...

Page 2: ...ndensate drain and overpressure valve 14 5 7 Electrical connection 14 5 8 Fitting the appliance casing 17 5 9 Outdoor air and exhaust air hose installation 17 5 10 Installing extract air and supply air pipes 19 6 Commissioning 19 6 1 Checks before commissioning 19 6 2 Filter insertion 20 6 3 Commissioning via the programming unit 20 6 4 Recommissioning 20 7 Appliance shutdown 20 8 Troubleshooting ...

Page 3: ...ormation These instructions are intended for qualified contractors 1 1 Relevant documents 338915 Operation 338916 Commissioning Notification list 1 2 Information on the appliance Connections Symbol Meaning Inlet intake Drain outlet Heat exchanger Heating Condensate Safety valve drain Outdoor air Exhaust air Extract air Supply air 1 3 Standardised output data Information on determining and interpre...

Page 4: ...roval must be obtained from the responsible flue gas inspector The flue gas inspector assesses whether all stat utory regulations are observed We recommended that the flue gas inspector be involved at an early stage in the design process For simultaneous operation of combustion equipment and a ventilation unit we recommend choosing approved room sealed combustion equipment Planning should always i...

Page 5: ...age list Programming unit Outside sensor Eight sliding blocks for easier positioning of the appliance Hose clips to secure the air hoses Adhesive tape to seal the inner hose to the hose connector PE plate for connection to a geothermal heat exchanger or an external fresh air intake Fixing materials screws washers etc Two straight push fit connectors for the hydraulic connection of the function and...

Page 6: ...pen the front door freely maintain a minimum clearance on the r h side and in front of the appliance The re quired room height depends on whether the reversing hood is used or whether the hoses are connected directly see chapter Installation site Minimum clearances Maintain a minimum clearance on the r h side of the appliance for service work f Observe the wall outlet installation instructions f O...

Page 7: ...missions Sound insulation for rooms adjacent to the installation room The appliance is quiet in normal operation When operating at its application limits under full load sound emissions can occur due to the power density These sound emissions may cause a disturbance in neighbouring rooms This is especially the case if the installation room adjoins a living room or bedroom To prevent noise pollutio...

Page 8: ...mm on the opposite side 2 1 3 3 2 D0000047127 1 Timber frame supports 60 x 60 mm 2 Gypsum fibre board 12 5 mm 3 Gypsum fibre board 10 mm Sound attenuation measures 55 dB A A sound absorbing coefficient of 55 dB A can be achieved using for example a twin wall of lightweight timber frame construction with full insulation and 30 mm parting line The cross section of the timber supports should be 60 x ...

Page 9: ...containing permeable plastic pipes or in open vented heating systems oxygen diffusion can cause corrosion to the steel components of the indirect coil in the DHW cylinder steel radiators or steel pipes Material losses The products of corrosion e g rusty sludge can set tle in the heating system components which may re sult in a lower output or fault shutdowns due to reduced cross sections 4 6 Trans...

Page 10: ...of the ap pliance See chapter Preparations Installation site Minimum clearances 1 2 3 D0000062844 1 Upper front panel 2 Cross countercurrent heat exchanger 3 Outdoor air filter cassette f Undo the screws on the right hand side of the top front panel f Pivot the top front panel open to the left D0000045966 f Using wire cutters cut through the spacers of the knock out aperture on the back panel of t...

Page 11: ...roove depth ap prox 0 1 mm at a defined distance from the end of the pipe Pipe diameter 22 mm 17 0 5 mm Pipe diameter 28 mm 21 0 5 mm Material losses Support sleeves are required when using plastic pipes The push fit connectors are equipped with a retainer with stain less steel serrations and an O ring for sealing The push fit con nectors also have a twist and secure function Simply turning the sc...

Page 12: ...h ball valves should be positioned as close to the appliance as possible and should be easily accessible Thermal insulation f Provide thermal insulation in accordance with current regulations Water quality Carry out a fill water analysis before filling the system This may for example be requested from the relevant water supply utility To avoid damage as a result of scaling it may be necessary to s...

Page 13: ...irculation is required due to unfavourable pipework or for reasons of convenience you must install the DHW circulation in accordance with applicable standards To reduce pump runtime and energy demand we recommend imposing time and temperature controls on activation of the circulation pump A DHW circulation pump can be found in our range of accessories 5 5 Filling and venting the heating system Fil...

Page 14: ...al connection WARNING Electrocution Only qualified electricians may carry out the connec tion in accordance with these instructions Carry out all electrical connection and installation work in accordance with national and regional regulations WARNING Electrocution Disconnect the appliance from the power supply before carrying out work on the control panel WARNING Electrocution The connection to th...

Page 15: ...the control panel place the serrated washer behind the fastening screw The control panel cover is held in place at the lower end by a tab that slots behind the appliance side panel f Push the control panel cover upwards and pull out at the bottom to remove it from the appliance 5 7 3 Heat pump compressor and electric emergency booster heater D0000038968 XD01 WP Heat pump L1 Compressor L2 Heat pump...

Page 16: ...oors light wells or air ducts and never subject it to direct insolation Install the outside temperature sensor on a north or north east facing wall on the exterior side of a heated room Never install the outside temperature sensor near an exhaust air discharge or any other influencing factors e g drier discharge The minimum height above the ground is 2 5 m and minimum side clearance to windows and...

Page 17: ...ch the lower front panel using screws f Close the door of the appliance Lock the door 5 8 1 Mounting the programming unit D0000039624 f Position the programming unit from the front in the opening of the fascia f Then fit the frame at the back of the fascia together with the programming unit until the programming unit clicks into place in the frame f Connect the bus cable to the programming unit Th...

Page 18: ...0000059950 f Invert the internal hose halfway down the connector D0000059964 f Seal the transition from the internal hose to the connector with the self adhesive thermal insulation tape supplied D0000059965 1 1 Film f Pull the sleeves of the sound optimised hoses LSWP 315 4 S over the connections D0000059966 f For the sound optimised hoses LSWP 315 4 S use the self adhesive thermal insulation prov...

Page 19: ...es Provide suitable overflow apertures since the air is only blown into living rooms and bedrooms and is only extracted from un pleasant smelling and humid rooms For example fit ventilation grilles in internal doors or walls or increase the air gap below the door 8 mm to ensure an unimpeded overflow and thereby air balancing 6 Commissioning WARNING Injury Only qualified contractors may commission ...

Page 20: ...condition the parameter is disabled Sound reduced night mode Silent Mode It may be necessary to set reduced night mode in areas with more stringent noise emission requirements The operator of the heat pump system must be informed of the setting The installation company is responsible for setting sound reduced night mode when the system is commissioned 6 4 Recommissioning f Carry out the work speci...

Page 21: ...iance f Hook the door on and screw the door hinge bracket back onto the cover and side panel 8 2 Cleaning defrost pan Material losses Do not use any cleaning agents just water Clean the defrost tray if it is dirty It may be contaminated with leaves mineral wool residues from insulation or polystyrene balls from drainage tiles f Remove the central front panel as described in chapter Cleaning the ev...

Page 22: ...anger with warm water f Let the cross countercurrent heat exchanger dry out 9 2 Cleaning the outdoor air filter The outdoor air filter is fitted downstream of the cross counter current heat exchanger 1 2 3 D0000062844 1 Upper front panel 2 Cross countercurrent heat exchanger 3 Outdoor air filter cassette f Pull out the cross countercurrent heat exchanger f Grasp the outdoor air filter cassette by ...

Page 23: ...rly f Remove the evaporator cover see chapter Cleaning the evaporator fins f Remove dirt and blockages immediately f To test the drain pour one litre of water for example from two half litre bottles into the condensate pan If the condensate pan does not overflow the drainage facility is adequate 9 5 Cleaning the filter ball valve 26_04_01_0614_ f Close the filter ball valve by turning it 90 clockw...

Page 24: ... Type of connection Push fit connection Push fit connection Diameter mm 22 22 d45 Condensate drain Type of connection Push fit connection Push fit connection Diameter mm 22 22 e01 Heating flow Type of connection Push fit connection Push fit connection Diameter mm 22 22 e02 Heating return Type of connection Push fit connection Push fit connection Diameter mm 22 22 g03 Outdoor air Nominal diameter D...

Page 25: ...Underfloor heating thermostat option or safety equipment termi nal for stove fireplace Example 2 Blocking time for electric emergency booster heater 1 L 2 L 3 L N E P 1 L 2 L E P N U V E XD02 1 2 3 4 5 XD01 6 7 8 9 XD03 1 2 3 4 XE03 M 1 L1 L2 L3 N PE 3 N PE 50Hz 400V 1 N PE 50Hz 230V L1 2 N PE 50Hz WP MFG Steuerung L1 L2 N PE PE N D0000077202 1 2 WP Heat pump Heat pump fan MFG Electric emergency b...

Page 26: ...ce values Pt1000 sensor PTC sensor Temperature in C Resistance in Ω Resistance in Ω 30 882 20 922 1367 10 961 1495 0 1000 1630 10 1039 1772 20 1078 1922 25 1097 2000 30 1117 2080 40 1155 2245 50 1194 2417 60 1232 2597 70 1271 2785 80 1309 2980 90 1347 3182 100 1385 3392 110 1423 120 1461 Note When measuring with a multimeter the resistance values serve only to identify faulty or incorrect sensors ...

Page 27: ...RF01 Interference suppression filter RF06 Ferrite ring core SF01 Reset button XD01 Compressor HP fan power supply XD02 Instantaneous water heater MFG power supply XD03 230 V PCB inputs power supply XD04 Terminals for external temperature sensor and CAN bus XD20 Terminal XD21 L block terminal XD22 N block terminal XD23 3 pin terminal XD24 4 pin terminal XD27 CAN bus programming unit connector XD76 ...

Page 28: ...2 X3 3 4 SF01 1 3 5 A2 2 4 6 A1 KF01 EB03 32 22 31 21 T BT55 12 11 EB01 1 2 3 L N PE XE16 XD23 BT35 T BT48 T BT46 T BT45 T BT43 T BT42 T BT12 T BT11 T p BP11 1 PE N L MA10 1 PE N L MA RF01 U V W MA01 M 3 AA04 10 L N PE 1 U V W PE L N PE L N PE FC01 X25 USB 1 1 1 1 1 1 9 8 12 6 5 3 6 3 3 1 1 1 2 AA02 X23 X22 X20 X19 X18 X17 X16 X24 X1 X2 Fenster AUF Ölsumpf HK2 2 W W Speicher Synchronmotor Heizen S...

Page 29: ... e y h w M 1 MA15 alternativ MA06 M MA04 M T45 T BT44 T BT42 T BT40 T BT11 T BT02 T BT01 T 4 3 1 p U BP10 3 2 1 p BP03 3 2 1 p BP01 U 4 5 3 3 0 M B k b e y d r BL01 BF01 AA06 XD27 1 N L MA10 1 PE N L MA13 MA07 alternativ h w h w d r k b 1 2 3 4 MA15 BP05 p BT51 X25 USB 8 12 10 10 6 3 5 4 4 5 5 5 4 4 4 8 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 AA02 X16 X15 X14 X13 X12 X11 X10 X9 X8 X7 X6 X51 X5 X4 4 ...

Page 30: ... 10 11 20 15 10 5 0 5 10 15 20 1 2 3 4 5 6 D0000043575 X Outside temperature C Y Heating output kW 1 max W35 2 max W45 3 max W55 4 min W35 5 min W45 6 min W55 LWZ 5 S Trend 2 3 4 5 6 20 15 10 5 0 5 10 15 20 1 2 3 4 5 6 D0000082437 X Outside temperature C Y Heating output kW 1 max W35 2 max W45 3 max W55 4 min W35 5 min W45 6 min W55 ...

Page 31: ...Pump rate 65 4 Pump rate 45 10 8 Fan curve 0 20 40 60 80 100 120 140 160 180 200 220 80 100 120 140 160 180 200 220 240 260 280 300 320 1 2 0 30 0 35 0 40 0 45 0 50 D0000042009 Application range X Air flow rate m h Y Average value static pressure Pa 1 Maximum fan curve 2 System curves 0 30 Specific power consumption 0 30 Wh m 0 35 Specific power consumption 0 35 Wh m 0 40 Specific power consumptio...

Page 32: ...ght mode dB A 52 50 Max sound power level at air intake discharge dB A 47 6 58 5 49 4 51 8 Sound power level reduced night mode air intake discharge dB A 41 5 48 3 40 0 49 9 Application limits Min application limit heat source C 20 20 Max application limit heat source C 35 35 Max pressure drop outdoor air Pa 25 25 Min installation room volume m 7 7 Hydraulic data Min surface area indirect coil DHW...

Page 33: ... 22 Outdoor air exhaust air connection mm 410x155 oval 410x155 oval Heating water quality requirements Water hardness dH 3 3 Conductivity softening μS cm 1000 1000 Conductivity desalination μS cm 20 100 20 100 Chloride mg l 30 30 Oxygen 8 12 weeks after filling softening mg l 0 02 0 02 Oxygen 8 12 weeks after filling desalination mg l 0 1 0 1 pH value with aluminium fittings 8 0 8 5 8 0 8 5 pH val...

Page 34: ...34 LWZ 5 S Trend LWZ 8 S Trend www stiebel eltron com NOTES ...

Page 35: ...www stiebel eltron com LWZ 5 S Trend LWZ 8 S Trend 35 NOTES ...

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