STIEBEL ELTRON LWZ 180 Operation And Installation
Central ventilation appliance with heat recovery
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Summary of Contents for STIEBEL ELTRON LWZ 180
- Page 1 BEDIENUNG UND INSTALLATION OPERATION AND INSTALLATION USO E INSTALLAZIONE Zentrales Lüftungsgerät mit Wärmerückgewinnung | Central ventilation appliance with heat recovery | Apparecchio di ventilazione centralizzata con recupero di calore » LWZ 180 » LWZ 280 » LWZ 180 Enthalpie » LWZ 280 Enthalpie...
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Page 2: Table Of Contents
CONTENTS | SPECIAL INFORMATION SPECIAL INFORMATION 12.3 Code ��������������������������������������������������������������� 40 Appliance shutdown ��������������������������������������� 40 OPERATION Maintenance ������������������������������������������������ 40 General information ��������������������������������������� 27 Safety instructions ���������������������������������������������� 27 Troubleshooting �������������������������������������������� 42 Other symbols in this documentation ���������������������� 27 Specification ������������������������������������������������ 43 Information on the appliance �������������������������������� 27 16.1 Dimensions and connections ���������������������������������... -
Page 3: General Information
OPERATION General information OPERATION f This symbol indicates that you have to do something. The ac- tion you need to take is described step by step. Information on the appliance General information Connections The chapters "Special information" and "Operation" are intended Symbol Meaning for both users and qualified contractors. -
Page 4: General Safety Instructions
LWZ 180 Enthalpie, LWZ 280 Enthalpie: Enthalpy heat instructed on how to use the appliance safely and have exchanger understood the potential risks. -
Page 5: Settings
OPERATION Settings Settings Press the "HOME" and "OK" buttons simultaneously to activate the function block. The "padlock" symbol appears. Then you can wipe the programming unit clean without inadvertently changing any Switching the appliance on settings. Press the "HOME" and "OK" buttons simultaneously for two seconds to deactivate the function block. -
Page 6: Menu
OPERATION Settings Menu Note The qualified contractor can set the parameters men- Display Description tioned in the description of this parameter. „ „ P1 - Pxx Parameters P23: Frost protection mode „ „ I1 - Ixx Actual values P24: Bypass enable temperature „... - Page 7 OPERATION Settings „P83: Mode of backlighting „ Time pro- gram x Options Effect Day or group of Fan stage Start time Stop time Backlighting switched on days Backlighting switched off … „ Auto If no user action occurs within the time selected in the illumination … „...
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Page 8: Switching Off The Appliance
OPERATION Maintenance, cleaning and care Switching off the appliance The fascia is fastened to the appliance with locking tabs. f To disengage the locking tabs, press the grip areas on the fascia sides. f Remove the fascia from the appliance. f Undo the knurled screws securing the filter drawer. f Pull the filter drawer forwards to remove it from the The appliance has no ON/OFF switch. -
Page 9: Installation
INSTALLATION Safety INSTALLATION With open flue combustion equipment, a differentiation must be made between alternate and simultaneous operation of the ven- tilation system and combustion equipment. Alternate operation Safety Alternate operation means that, when the combustion equipment is started, the mechanical ventilation system is switched off and/ Only a qualified contractor should carry out installation, commis- or cannot be started. -
Page 10: Appliance Description
INSTALLATION Appliance description Appliance description Minimum clearances Standard delivery The following are delivered with the appliance: - Wall mounting bracket - 2 star grips as spacers for the rear of the appliance - Condensate drain hose, hose clip, mounting bend ≥300 ≥300 - 4 twin connectors, nominal diameter 160 Accessories... -
Page 11: Installation
INSTALLATION Installation 10. Installation f Carefully raise the front panel by a small amount on the right-hand side. f On the appliance, pull out the plug connecting the program- 10.1 Removing the front panel ming unit with the appliance. Remove the front panel before removing the appliance from the pallet, to avoid damaging the appliance. -
Page 12: Air Ducts
INSTALLATION Installation 10.4.1 Connecting air ducts to the appliance You can connect air ducts with two different diameters to the appliance. Air ducts with diameter DN 160 f Use the mounting bend included in the standard delivery to install the condensate drain hose in such a way as to create a 1 Twin connector siphon with a water trap height of at least 80 mm. -
Page 13: Fitting The Front Panel
INSTALLATION Installation f Use no more than 3 screws to secure the air duct to the air 10.4.7 Insulation against condensation connection of the appliance. Material losses When warm air meets cold surfaces, condensation can result. f For outdoor air and exhaust air ducts, use vapour proof thermally insulated pipes. -
Page 14: Commissioning
INSTALLATION Commissioning 11. Commissioning Material losses Never operate the appliance without filters. Material losses Never operate the ventilation system if there are high lev- els of dust inside the building or outside in the immediate vicinity, as this could block the filter. Dust is created by cutting tiles or working with plasterboard, for example. -
Page 15: Settings
INSTALLATION Settings 12. Settings „P5: Fan operating mode „ Use this parameter to switch between flow rate control and con- When you enter a four-digit code, additional actual values become stant pressure control. visible, which were hidden beforehand. Options Effect 12.1 Parameters The appliance maintains a constant flow rate for both fans. -
Page 16: Actual Values
INSTALLATION Appliance shutdown „P25: Bypass blocking temperature 13. Appliance shutdown „ If the outdoor air temperature falls below this blocking tempera- We recommend running the appliance in fan stage 1, even during ture, the bypass is deactivated. prolonged absence. „P26: Bypass hysteresis „... - Page 17 INSTALLATION Maintenance f Use a medium sized screwdriver to turn the eccentric bolt anti-clockwise by 300°. f Carefully pull both fan units from the appliance by a small amount. f Carefully remove the heat exchanger from the appliance. Avoid damaging the EPS parts in the appliance. f Use a commercially available vacuum cleaner to remove dust and other loose dirt particles from the intake and discharge surfaces.
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Page 18: Troubleshooting
INSTALLATION Troubleshooting 15. Troubleshooting WARNING Electrocution Disconnect the power supply by unplugging the appli- ance from the mains before carrying out work inside the appliance. WARNING Electrocution The power cable must only be replaced (for example if damaged) by a qualified contractor authorised by the manufacturer, using an original spare part. -
Page 19: Specification
INSTALLATION Specification 16. Specification 16.1 Dimensions and connections LWZ 180 LWZ 280 LWZ 180 Enthalpie LWZ 280 Enthalpie Entry electrical cables Condensate drain Diameter Outdoor air Diameter 160 / 180 160 / 180 160 / 180 160 / 180 g04 Exhaust air Diameter 160 / 180 160 / 180 160 / 180 160 / 180... - Page 20 INSTALLATION Specification Heizregister L N PE Schwimmer int. Bedienteil Bypass 44 | L WZ 180 / L WZ 280 www.stiebel-eltron.com...
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Page 21: Fan Diagram
INSTALLATION Specification 16.3 Fan diagram The graphs show hydraulic curves for examples of air distribution systems. LWZ 180 / LWZ 180 Enthalpie 0,57 0,45 0,40 0,34 0,36 0,29 0,25 0,23 0,17 0,18 0,13 0,11 0,09 0,20 0,16 0,06 0,12 0,06... -
Page 22: Data Table
INSTALLATION Specification 16.4 Data table LWZ 180 LWZ 280 LWZ 180 Enthalpie LWZ 280 Enthalpie 232361 232362 236646 236647 Sound emissions Sound power level (EN 12102) dB(A) Energy data Energy efficiency class Electrical data Rated voltage Max. current drawn Current drawn without preheating coil Current drawn with preheating coil Phases 1/N/PE 1/N/PE... - Page 23 GUARANTEE | ENVIRONMENT AND RECYCLING Guarantee The guarantee conditions of our German companies do not apply to appliances acquired outside of Germany. In countries where our subsidiaries sell our products a guarantee can only be issued by those subsidiaries. Such guarantee is only grant- ed if the subsidiary has issued its own terms of guarantee.
- Page 24 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.