Related Manuals for STIEBEL ELTRON LWZ 8 S Trend
Summary of Contents for STIEBEL ELTRON LWZ 8 S Trend
- Page 1 INSTALLATION Central ventilation unit with heat recovery » LWZ 8 S Trend » LWZ 5 S Trend...
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Page 2: Table Of Contents
CONTENTS Specification ������������������������������������������������ 24 SPECIAL INFORMATION 10.1 Dimensions and connections 24 INSTALLATION 10.2 Connection examples 25 10.3 Application range 26 General information �����������������������������������������3 Relevant documents 3 10.4 Sensor resistance values 26 10.5 Wiring diagram 27 Information on the appliance 3 10.6 Output graph 30... -
Page 3: Special Information
SpECiaL iNfOrmaTiON | i NSTaLLaTiON General information SpECiaL iNfOrmaTiON iNSTaLLaTiON - Observe all applicable national and regional reg- General information ulations and instructions during installation. These instructions are intended for qualified contractors. - The appliance is not approved for outdoor installation. Relevant documents - Observe the requirements concerning the instal- 338915... -
Page 4: Safety
iNSTaLLaTiON Safety Operation of the appliance in buildings with Generally, the test conditions stated above will not fully match the conditions found at the installation site of the system user. combustion equipment Depending on the chosen test method and the extent to which If the building contains combustion equipment (tiled stoves, fire- this method differs from the test conditions defined in the first places, etc.), approval must be obtained from the responsible flue... -
Page 5: Appliance Description
iNSTaLLaTiON appliance description the installation room and the living space containing combustion - Adhesive tape to seal the inner hose to the hose connector equipment. If, due to its use, the installation room is connected - PE plate for connection to a geothermal heat exchanger or an to the extract air system, you must also make special arrange- external fresh air intake ments for a supply air vent in the installation room, to prevent... -
Page 6: Preparation
iNSTaLLaTiON preparation 3.4.1 Frost protection for the cross-countercurrent heat 4.1.1 Minimum clearances exchanger Outdoor/exhaust air connection with diverter hood A heat exchanger in the path of the outdoor air flow preheats the outdoor air, and thus prevents the cross-countercurrent heat exchanger from freezing up. -
Page 7: Air Routing
iNSTaLLaTiON preparation Outdoor/exhaust air connection with air hose Outdoor air mechanical ventilation connection option ≥500 ≥300 1 Filter box Air routing Prevent air stream „short circuits“. The air intake and discharge apertures in the external walls should be arranged around cor- ners. - Page 8 iNSTaLLaTiON preparation The floor between the installation room and living areas must Anti-vibration separation have carefully applied anti-vibration separation. Ensure that no With the anti-vibration feet, it is possible to install the appliance pipes are routed on or in the wall and that the air ducts have on floating screed, as long as this has been applied correctly.
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Page 9: Electrical Installation
iNSTaLLaTiON installation Electrical installation Transport Permission must be obtained from your local power supply utility. Material losses If the appliance is transported without packing and with- WARNING Electrocution out using a pallet, its outer casing may be damaged. Carry out all electrical connection and installation work Remove the side panels and doors in such cases. - Page 10 iNSTaLLaTiON installation Outdoor air mechanical ventilation connection option Note Observe the minimum clearance at the back of the ap- pliance. See chapter "Preparations / Installation site / Minimum clearances". STOP 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.
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Page 11: How The Push-Fit Connectors Work
iNSTaLLaTiON installation f Seal the gap between the folded spiral-seam tube and the Simply turning the screw cap by hand will secure the pipe in the EPS insulation with sealing tape. connector and push the O-ring against the pipe to seal it. f Pull out the cross-countercurrent heat exchanger. -
Page 12: Heating Water Connection
iNSTaLLaTiON installation Heating water connection f Fit the ball valve included in the standard delivery in the heating circuit flow. Note Both ball valves should be positioned as close to the appliance as The use of non-return valves in the charging circuits be- possible and should be easily accessible. -
Page 13: Connecting An External Dhw Cylinder
iNSTaLLaTiON installation Material losses In the "INFO" menu, the appliance offers the option to display the water pressure. f Ensure that the pump does not run without water. Connecting an external DHW cylinder Material losses If no DHW cylinder is being connected, the plugs fitted to the "heat exchanger flow"... -
Page 14: Condensate Drain And Overpressure Valve
iNSTaLLaTiON installation f Determine the „PRESSURE HTG CIRC“ value for one of the Route the condensate into a floor drain. When doing so, ensure the three favourites. For this, navigate from the default display to drain is adequately ventilated, e.g. free discharge into a siphon. the „FAVOURITES“... - Page 15 iNSTaLLaTiON installation 5.7.1 General information 5.7.3 Heat pump (compressor) and electric emergency/ booster heater The electrical data is given in the chapter „Specification/Data table“. Cable routing f Push all connecting cables and sensor leads through one of the „Entry electrical cables“ ducts in the back panel of the function module.
- Page 16 iNSTaLLaTiON installation 5.7.6 External pumps ( PWM ) f XD04-TD: Connect the temperature sensor. Outside temperature sensor AFS 2 Note The power supply to the external pumps is not provided The outside temperature sensor should have full and unprotected via the appliance. exposure to the weather.
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Page 17: Fitting The Appliance Casing
iNSTaLLaTiON installation Fitting the appliance casing Note An air hose to capture the differential pressure runs along the l.h. side of the appliance. This air hose must run inside the curved groove cut into the thermal insulation. f Ensure that this air hose is seated correctly. f Attach the lower front panel using screws. - Page 18 iNSTaLLaTiON installation Note When installing an outdoor air connection maintain Δp < 20 Pa. In other words, the outdoor air duct run should be as short as possible. The air hose tends to sag because of its flexibility. Secure it at intervals of approx. 1 m. 5.9.2 Fitting the air hoses 1 Film f Adapt the shape of the air hose to match the oval connection...
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Page 19: 5.10 Installing Extract Air And Supply Air Pipes
iNSTaLLaTiON Commissioning the door (≥ 8 mm) to ensure an unimpeded overflow and thereby air balancing. Commissioning WARNING Injury Only qualified contractors may commission this appli- ance and instruct the user. f Secure the external hose with the hose clip to the connector. Material losses Material losses Never operate the ventilation system if there are high lev-... -
Page 20: Filter Insertion
iNSTaLLaTiON appliance shutdown Commissioning via the programming unit 6.1.5 Temperature sensor - Have outside sensors, cylinder temperature sensor and, if 338916 Commissioning / Notification list required, mixer circuit sensor and flow sensor for the second heating circuit been correctly positioned and connected? Enabling the DHW cylinder „... -
Page 21: Troubleshooting
iNSTaLLaTiON Troubleshooting Cleaning defrost pan Material losses f Mark the appliance to enable the recognition that Material losses the appliance has been fully shut down and that it Do not use any cleaning agents, just water. must be refilled, checked and commissioned before restarting. -
Page 22: Maintenance And Cleaning
iNSTaLLaTiON maintenance and cleaning Maintenance and cleaning f Pull out the cross-countercurrent heat exchanger. f Grasp the outdoor air filter cassette by the grip holes and remove it. WARNING Electrocution f Prior to commencing any service or cleaning work, f Remove the filter from the filter cassette. isolate the appliance across all poles from the f Clean the filter. -
Page 23: Cleaning The Condensate Drain
iNSTaLLaTiON maintenance and cleaning Cleaning the condensate drain Check the condensate drain regularly. 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. -
Page 24: Dimensions And Connections
iNSTaLLaTiON Specification 10. Specification 10.1 Dimensions and connections LWZ 5 S Trend LWZ 8 S Trend Entry electrical cables Safety valve drain Diameter Heat exchanger flow Type of connection Push-fit connection Push-fit connection Diameter Heat exchanger return Type of connection Push-fit connection Push-fit connection Diameter Condensate drain Type of connection Push-fit connection Push-fit connection... -
Page 25: Connection Examples
iNSTaLLaTiON Specification 10.2 Connection examples Example 1 : Without power-OFF periods Steuerung XD02 XD03 XD01 4 XE03 3/N/PE ~ 50Hz 400V 2/N/PE ~ 50Hz 1/N/PE ~ 50Hz 230V Heat pump / Heat pump fan Electric emergency/booster heater Steuerung Control Underfloor heating thermostat (option) or safety equipment termi- nal for stove / fireplace Example 2: Blocking time for electric emergency/booster heater Steuerung... -
Page 26: Application Range
iNSTaLLaTiON Specification 10.3 Application range Heating 1 Application range limits X Outside temperature [°C] Y Flow temperature [°C] 10.4 Sensor resistance values pt1000 sensor pTC sensor Temperature in °C resistance in Ω resistance in Ω 1367 1495 1000 1630 1039 1772 1078 1922 1097 2000 1117 2080 1155 2245 1194 2417... -
Page 27: Wiring Diagram
iNSTaLLaTiON Specification 10.5 Wiring diagram AA02 Integral control unit XD04 Terminals for external temperature sensor and CAN AA04 Inverter AA06 Programming unit XD20 Terminal BF01 Heating circuit flow rate sensor XD21 L block terminal BL01 Condensate float switch XD22 N block terminal BM03 Extract air humidity sensor XD23... - Page 28 iNSTaLLaTiON Specification BT35 BT48 BT12 BT43 BT46 BT45 BT42 BT11 XD22 XD21 1 2 3 4 1 2 3 4 AA02-X24 XE08 XE09 1 2 3 4 1 2 3 4 L‘ L‘ L‘ BT35 XD04 21,22 BP11 Mi ZU Mi AUF NE Stufe Niedrig IN NE Stufe Niedrig OUT...
- Page 29 iNSTaLLaTiON Specification BT42 BT11 BT02 BT44 BT40 BT01 BT30 XD04 CAN 2 UP SOL UP HK2 23 24 XE09 1 2 3 4 1 2 3 4 1 2 3 4 von X7 XE08 XE09 AA02-X24 1,2,3,4 XD04 21,22 MA10 BL01 Schalter Bodenblech Feuchtesensor...
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Page 30: Output Graph
Specification 10.6 Output graph LWZ 8 S Trend Outside temperature [°C] max. W55 Heating output [kW] min. W35 max. W35 min. W45 max. W45 min. W55 LWZ 5 S Trend Outside temperature [°C] max. W55 Heating output [kW] min. W35 max. -
Page 31: Available External Head Of The Circulation Pump
iNSTaLLaTiON Specification 10.7 Available external head of the circulation pump X Flow rate [m 2 Pump rate 85 % Y Pressure [hPa] 3 Pump rate 65 % 1 Pump rate 100 % 4 Pump rate 45 % 10.8 Fan curve 0,30 0,35 0,40... -
Page 32: Data Table
iNSTaLLaTiON Specification 10.9 Data table The output data refers to new appliances with clean heat ex- changers. The power consumption of the integral auxiliary drives represents the maximum value and may vary subject to operating point. The power consumption of the integral auxiliary drives is included in the output details of the appliance (to EN 14511). - Page 33 iNSTaLLaTiON Specification LWZ 8 S Trend LWZ 5 S Trend Versions Refrigerant R410A R410A Refrigerant charge 2.95 2.95 equivalent (CO 6.26 6.16 Global warming potential of the refrigerant (GWP100) 2088 2088 IP rating IP1XB IP1XB Filter class, extract air ISO Coarse > 60 % (G4) ISO Coarse > 60 % (G4) Filter class, supply air ePM10 ≥...
- Page 34 NOTES 34 | LWZ 5 S Trend / LWZ 8 S Trend www.stiebel-eltron.com...
- Page 35 NOTES www.stiebel-eltron.com LWZ 5 S Trend / LWZ 8 S Trend | ...
- Page 36 Deutschland Verkauf Tel. 05531 702-110 | Fax 05531 702-95108 | info-center@stiebel-eltron.de STIEBEL ELTRON GmbH & Co. KG Kundendienst Tel. 05531 702-111 | Fax 05531 702-95890 | kundendienst@stiebel-eltron.de Dr.-Stiebel-Straße 33 | 37603 Holzminden Ersatzteilverkauf Tel. 05531 702-120 | Fax 05531 702-95335 | ersatzteile@stiebel-eltron.de Tel.