STIEBEL ELTRON WWK 221 electronic Operation And Installation
Dhw heat pump
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Summary of Contents for STIEBEL ELTRON WWK 221 electronic
- Page 1 OPERATION AND INSTALLATION DHW heat pump » WWK 221 electronic » WWK 301 electronic » WWK 301 electronic SOL...
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Page 2: Table Of Contents
CONTENTS | SPECIAL INFORMATION SPECIAL INFORMATION Appliance shutdown ��������������������������������������� 26 Troubleshooting �������������������������������������������� 26 OPERATION 13.1 Resetting the high limit safety cut-out ��������������������� 27 General information �����������������������������������������3 13.2 Motor overload relay ������������������������������������������� 27 Safety instructions ����������������������������������������������� 3 Maintenance and cleaning �������������������������������� 27 Other symbols in this documentation �����������������������... -
Page 3: Special Information
SPECIAL INFORMATION | OPERATION General information OPERATION - Observe the requirements concerning the instal- lation room (see chapter "Specification / Data table"). - If the appliance is permanently connected to the General information power supply, ensure that the appliance can be The chapters "Special information"... -
Page 4: Other Symbols In This Documentation
OPERATION Safety Other symbols in this documentation Any other use beyond that described shall be deemed inappro- priate. Observation of these instructions and of the instructions for any accessories used is also part of the correct use of this Note appliance. -
Page 5: Test Symbols
OPERATION Appliance description The ambient air can be cooled down by between 1 °C and 3 °C as a Material losses result of heat extraction in the installation room or the room from Ensure that the appliance, water pipes and safety valves which the air is drawn. -
Page 6: Dhw Heating
OPERATION Appliance description In the event of an appliance fault, the electric emergency/booster Note heater can be activated in emergency mode if the symbol “ser- Following an interruption of the power supply, the vice/fault” is flashing. See chapter "Operation/'Rapid heat-up' key/ compressor operation remains blocked for at least one Emergency heating mode". -
Page 7: Appliance Operation Outside The Application Limits
OPERATION Appliance description Appliance operation outside the application Frost protection limits The appliance activates the frost protection function if the integral f To guarantee fault-free operation of the appliance, make sure sensor in the DHW cylinder captures a temperature below 10 °C. you operate the appliance within its application limits (see The appliance then heats the water by means of the heat pump chapter "Specification / Data table"). -
Page 8: Settings
OPERATION Settings Settings 4.1.1 Symbols Symbol Description Display and controls Mixed water volume: The currently available amount of mixed water at 40 °C and at 15 °C cold water temperature is shown. Set temperature adjustment: Subject to intake temperature and Note hot gas temperature, the appliance may temporarily reduce the set 15 seconds after every operation, the appliance auto- temperature to the actual value captured by the integral sensor. -
Page 9: Settings
OPERATION Settings Settings … Set temperature 1 Note Menu „ For hygiene reasons, never set the DHW temperature below 50 °C. In default display mode, the display shows the amount of mixed water. Set temperature 1 is the DHW temperature to which the appliance The "Menu"... - Page 10 OPERATION Settings Operation with external signal transmitter Note Do not change the fan output. Your qualified contractor has set this value during commissioning. Material losses See "Permissible voltage range for external signal trans- mitters" in the "Specification/data table" chapter. Air intake temperature display …...
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Page 11: Quick Heat-Up" Key
OPERATION Settings … Fault code The tHE0 setting disables the "runt- ime-dependent rapid heat-up" function. If the "Service/fault" symbol illuminates This function is enabled via setting tHE1. or flashes, you can query the fault code The function is disabled at the factory. using the "Menu"... -
Page 12: Emergency Shutdown
OPERATION Maintenance and care 4.3.2 Emergency mode WARNING Injury If the appliance is faulty, you can use the emergency mode to Maintenance work, such as checking electrical safety, activate the electric emergency/booster heater. must only be carried out by a qualified contractor. The compressor shuts down if, following a DHW demand, no tem- perature increase is captured for 13 hours (52 intervals of 15 min- Appliance... - Page 13 OPERATION Troubleshooting Problem Cause Remedy Problem Cause Remedy The appliance reduces the No action required. The ap- Service/fault See the “Fault codes” chapter. Notify a qualified contractor. set value temporarily to the pliance displays the "Set tem- symbol is per- current actual value on the in- perature adjustment"...
- Page 14 OPERATION Troubleshooting Fault code If several faults occur, the fault codes are added up. You can call up a fault code if the Service/fault symbol is flashing Example: If both the sensor at the cylinder top and the integral or continuously lit on the display. sensor are faulty, the display shows fault code 6 (= 2+4).
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Page 15: Installation
INSTALLATION Safety INSTALLATION - For the "Cold water inlet" and "DHW outlet" connections: 2 insulated screw fittings comprising a flanged pipe, a gasket, a union nut and an insulating sleeve - 2 reducers (DN 200 to DN 160) for the side air intake and dis- charge connections Safety Required accessories... -
Page 16: Storage
INSTALLATION Preparations Installation site and location of air extraction Vehicular transport or air intake Material losses The appliance must generally be stored and transported Material losses vertically. Observe the lower application limit for the appliance. The temperature of the air discharged from the appliance may The appliance may be transported horizontally for brief periods, be lower than this value. -
Page 17: Siting The Appliance
INSTALLATION Preparations Examples of unacceptable installations atmospheres containing ammonia sewage works, pigsties substances which block the evap- air containing oil or fat, dust (cement, orator flour, etc.). Note: If the air contains hair- spray (e.g. in hairdressing salons), the appliance should be operated at shorter maintenance intervals. -
Page 18: Installation
INSTALLATION Installation 10. Installation Minimum clearances WARNING Injury Incorrect installation can lead to serious injury or materi- al damage. Before any work, ensure sufficient clearances for the installation. Handle sharp-edged components carefully. ≥400 ≥400 Material losses Observe the lower application limit for the appliance. The temperature of the air discharged from the appliance may be lower than this value. - Page 19 INSTALLATION Installation f Seal the transition from the external hose to the connector with self-adhesive thermal insulation tape. 1 Air connector 2 Internal hose 3 External hose f Pull the internal hose of the air hose slightly out of the exter- nal hose and thermal insulation.
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Page 20: Water Connection
INSTALLATION Installation 10.2 Water connection The safety valve protects the appliance against unacceptable ex- cess pressure. The diameter of the cold water supply line must be no greater than the diameter of the safety valve. Material losses f Ensure that the expansion water escaping from the safety Carry out all water connection and installation work in valve can drip into a drain, e.g. -
Page 21: Condensate Drain
INSTALLATION Installation Water quality, solar circuit Material losses The integration of an external heat generator via the "heat Material losses source flow" connection must not result in the application A glycol-water mixture up to 60 % is permissible for limits being exceeded (see chapter "Specification / Data the solar circuit, provided only dezincification-resistant table"). - Page 22 INSTALLATION Installation WARNING Electrocution The power cable must only be replaced (for example if damaged) with an original spare part by a qualified contractor authorised by the manufacturer (connection type X). Material losses The specified voltage must match the mains voltage. Ob- serve the type plate.
- Page 23 INSTALLATION Installation Example 1: Power-OFF signal with own 230 V phase Note The appliance has a second, higher set temperature which is selected at the factory. This is activated in the GNYE event of an external switching signal. Set temperature 2 is higher ranking than the standard set temperature while there is an external switching signal.
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Page 24: Assembling The Appliance
INSTALLATION Commissioning 10.6 Assembling the appliance 11.1.1 Fan setting subject to pressure drop The appliance requires a constant air flow rate of 350 m³/h to op- Note erate correctly. If an air duct is connected, the fan output must be f Refit the appliance cover after completing your adjusted in the appliance menu due to the resulting pressure drop. - Page 25 INSTALLATION Commissioning Individual system calculation 11.1.2 Filling the DHW cylinder f Calculate the system pressure drop as the sum of all compo- Fill the DHW cylinder and vent the pipework by following the nents installed in the air duct. procedure below: f Enter the calculated pressure drop on the X-axis of the dia- f Close the drain valve.
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Page 26: Recommissioning
INSTALLATION Appliance shutdown f If operating with an outdoor air intake, advise the appliance The appliance can only be switched off by interrupting the power user that high relative humidity levels can damage the fabric supply. of the building. If outdoor air is used as a heat source when f Pull the mains plug from the socket or disconnect the appli- outside temperatures are low, condensate may form on the ance from the mains at the MCB/fuse in the fuse box. -
Page 27: Resetting The High Limit Safety Cut-Out
INSTALLATION Maintenance and cleaning 14. Maintenance and cleaning E fault code Fault Service/ Fault description Remedy WARNING Electrocution code fault Prior to all work on the appliance, isolate it from the symbol power supply. flashes Air intake temperature sensor faulty flashes Evaporator temperature 14.1 Removing the appliance cover... -
Page 28: Removing The Casing Ring
INSTALLATION Maintenance and cleaning 14.2 Removing the casing ring In order to maintain the appliance performance permanently, check and clean the appliance evaporator if necessary. f Undo the screw that secures the appliance cover at the upper Note side of the control fascia. If you require more space to work inside the appliance, you can remove the casing ring on the upper section of f Remove the control fascia and the appliance cover. -
Page 29: Protective Anode
INSTALLATION Maintenance and cleaning 14.6 Protective anode 14.11 Fitting the appliance cover The flange of the electric emergency/booster heater is equipped WARNING Electrocution with a protective anode that protects the appliance from corrosion f Reconnect the earth cable to the appliance cover. while it is connected to the power supply. -
Page 30: Specification
INSTALLATION Specification 15. Specification 15.1 Dimensions and connections 15.1.1 WWK 221 electronic WWK 221 electronic Cable entry Cold water inlet Male thread DHW outlet Male thread DHW circulation Male thread G 1/2 A Condensate drain Male thread G 3/4 Air intake Nominal diameter DN 200 (DN 160 with supplied reducer) - Page 31 INSTALLATION Specification 15.1.2 WWK 301 electronic WWK 301 electronic Cable entry Cold water inlet Male thread DHW outlet Male thread DHW circulation Male thread G 1/2 A Condensate drain Male thread G 3/4 Air intake Nominal diameter DN 200 (DN 160 with supplied reducer) Air discharge Nominal diameter DN 200 (DN 160 with supplied reducer)
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Page 32: Wiring Diagram
INSTALLATION Specification 15.1.3 WWK 301 electronic SOL WWK 301 electronic SOL Cable entry Cold water inlet Male thread DHW outlet Male thread DHW circulation Male thread G 1/2 A Heat source flow Female thread Heat source return Female thread Condensate drain Male thread G 3/4 Air intake... - Page 33 INSTALLATION Specification coat GNYE N´ L´ storage tank storage tank de chauffage) mode dégivrage) www.stiebel-eltron.com WWK 221-301 electronic |...
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Page 34: Data Table
INSTALLATION Specification 15.3 Data table WWK 221 electronic WWK 301 electronic WWK 301 electronic 230949 230950 233584 Hydraulic data Nominal capacity Surface area, indirect coil m² Application limits Max. DHW temperature with heat pump only °C Maximum DHW temperature with emergency/booster heater °C... - Page 35 INSTALLATION | GUARANTEE | ENVIRONMENT AND RECYCLING Specification WWK 221 electronic WWK 301 electronic WWK 301 electronic Versions IP rating IP24 IP24 IP24 Refrigerant R134a R134a R134a Refrigerant charge 0.85 0.85 0.85 Global warming potential of the refrigerant (GWP100) 1430...
- 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.
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