STIEBEL ELTRON WWS 20 Operation And Installation Download

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BEDIENUNG UND INSTALLATION
OPERATION AND INSTALLATION
UTILISATION ET INSTALLATION

Warmwasser-Wärmepumpe in Splitbauweise | DHW heat pump in a split design |
Chauffe-eau thermodynamique de conception split

» WWS 20

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Summary of Contents for WWS 20

Page 1: ...NUNG UND INSTALLATION OPERATION AND INSTALLATION UTILISATION ET INSTALLATION Warmwasser Wärmepumpe in Splitbauweise DHW heat pump in a split design Chauffe eau thermodynamique de conception split WWS 20 1 1 ...

Page 2: ...ing bracket installation 51 10 2 Siting the appliance 52 10 3 Water connection 52 10 4 Condensate drain 54 10 5 Power supply 54 10 6 Temperature sensor 55 11 Commissioning 55 11 1 Initial start up 55 11 2 Recommissioning 56 12 Appliance shutdown 56 13 Maintenance and cleaning 56 13 1 Removing the casing 56 13 2 Removing casing components separately 57 13 3 Cleaning the evaporator 57 13 4 Water tre...

Page 3: ...the safety valve with a constant downward slope and in a room free from the risk of frost The safety valve discharge aperture must remain open to atmosphere OPERATION 1 General information The chapters Special information and Operation are intended for both users and qualified contractors The chapter Installation is intended for qualified contractors Note Read these instructions carefully before u...

Page 4: ...e chapter Specification Interrupting the power supply 2 3 General safety instructions Only qualified contractors should carry out the electrical work and installation of this appliance Qualified contractors are responsible for adherence to all applicable regulations The appliance should only be operated once it is fully installed and all safety equipment has been fitted WARNING Injury The applianc...

Page 5: ...ation room e g wash ing machine freezer Alternatively the appliance allows you to connect an air duct to route the supply air from another room or to remove the exhaust air from the installation room For times when there is no DHW demand compressor inactive the fan speed can be set separately Note In heat pump mode compressor active the fan always operates at a fixed rated speed set at the factory...

Page 6: ...peration of the appliance make sure you operate the appliance within its application limits see chapter Specification Data table 3 3 Frost protection air as heat source If the intake air temperature is too low the error message Er57 will appear on the display If an immersion heater is installed in the DHW cylinder it can continue DHW heating while the fault remains This requires heat pump mode to ...

Page 7: ...interval chapter 4 3 3 OK 0 14 0 Pasteurisation func tion disabled Fan mode chapter 4 4 OK Fan mode selection chapter 4 4 OK oFF Fan switched off on Continuous mode Auto Automatic mode Fan speed chapter 4 4 OK 1 9 Fan start time chapter 4 4 OK 00 00 23 59 Fan stop time chapter 4 4 OK 00 00 23 59 Heat pump mode selection chapter 4 5 OK oFF Compressor switched off Auto Automatic mode dEFr Manual def...

Page 8: ...automatic mode DHW heating is controlled via an individually adjustable time program The DHW is heated using all the heat sources which are enabled for automatic mode see chapter Pa rameter level Parameter setting In quick heat up mode the water is heated immediately to the selected set DHW value irrespective of automatic mode Once the selected set DHW value has been reached the appliance switches...

Page 9: ...the pasteurisation function start time in the peri od where DHW heating is enabled Note If the power supply has been interrupted e g following a power failure the selected heat up time can be extended up to 6 hours 4 4 Fan mode The fan can be switched on irrespective of the heat pump mode For this fan mode you can set the fan speed and a time program Alternatively the fan can be switched on and of...

Page 10: ... and immersion heater switched off K2 closed Heat pump is running A04 Function of switching input E3 0 No function factory setting 1 Power supply utility shutdown K2 open Heat pump and immersion heater switched off K2 closed Heat pump is running 2 Smart Grid function K3 open DHW set value is delivered K3 closed Pasteurisation set value is delivered Note The compressor has a minimum idle time of 20...

Page 11: ...nected directly to the junction box An external contactor is required for outputs above 2 kW f f The immersion heater should only be installed in the DHW cylinder by a qualified contractor 4 8 Setting the time To select the current time proceed as follows f f Press the Menu button The DHW heating menu appears f f Press the Up button until you reach the time setting menu The current time is display...

Page 12: ...too low Water consumption too high Reduce consumption or switch on immersion heater DHW value set too low DHW value checking Actual value F1 in correct Checking sensor F1 Intake air temperature too low heating out put too low Switching on immersion heater Circulation pump in continuous mode Check time switch test temper ature controller and non return valve Non return valve blocked Clear non retur...

Page 13: ...F4 faulty short circuit Sensor checking EP Error in parameter memory Appliance disconnection from power supply then reconnection Er36 High pressure shutdown Acknowledge error with OK Er47 Defrost error Acknowledge error with OK Er57 Frost protection heat source Error is acknowledged automatically FroS Frost protection DHW cylinder Start immersion heater if installed Error is acknowledged automatic...

Page 14: ...e appliance output at different intake tem peratures and the corresponding heat up times please use the output diagram in the chapter Specification Heating output f f Observe the minimum volume of the installation room and the heat up time during normal domestic use when com bined with a 300 l cylinder see chapter Specification Data table f f In recirculation air mode when selecting the type and s...

Page 15: ...he anti vibration mounts supplied Observe the safety clearances and protection zones Always leave sufficient space to provide access for instal lation maintenance and cleaning The required minimum clearances must be maintained see chapter Minimum clearances Ensure the operation of other equipment in the installation room is not impaired Lighting equipment and pipes must not be installed above the ...

Page 16: ...gs f f Insulate the air duct including the air connector to the appliance so that it is vapour diffusion proof Material losses There is a risk of frost damage if the appliance draws in outdoor air and the temperature of this air may fall below 0 C Fit ventilation flaps with low resistance for outdoor instal lation When the heat pump is idle the ventilation flaps prevent cold air flowing into the b...

Page 17: ...een the appliance and the DHW cylinder should be as short as possible If the pipework between the appliance and the DHW cylinder is longer the output and efficiency data may fall The following material combinations are approved for metal pipe work installations Cold water inlet DHW outlet Copper pipe Copper pipe Steel pipe Steel pipe or copper pipe f f Thoroughly flush the pipework before connecti...

Page 18: ...4 2 100 200 200 0 No limit HCO3 SO4 2 1 0 1 0 No limit Electrical conductivity 10 µS cm 10 500 µS cm 500 µS cm 0 0 No limit pH 2 7 0 7 0 9 0 9 0 0 0 within 24 h Ammonium NH4 2 2 20 20 0 within 24 h Chloride Cl 100 100 200 200 0 No limit Free chlorine Cl2 1 1 5 5 0 within 5 h Hydrogen sulphide H2S 0 05 0 05 No limit Water constituent Concentration mg l or ppm Time limits Investigation time followin...

Page 19: ...f 5 K between the flow and return the thermal output of the heat pump see chapter Specification must be transferred via the indirect coil in the DHW cylinder Due to the additional heat transfer this installation may result in different and lower output and efficiency data 10 4 Condensate drain Cooling the intake air in the evaporator separates the condensate Depending on the volume and humidity of...

Page 20: ... to show actual temperature inside the top of the DHW cylinder Activate by pressing the Up button while in standard display 10 6 1 Contact F1 Contact F1 as control sensor input f f Connect the DHW cylinder temperature sensor supplied at the factory to contact F1 Contact F1 as external switching input Material losses Applying voltage could destroy contact F1 f f Never apply any voltage to contact F...

Page 21: ...ally the risk of scalding f f Make users aware of critical environmental factors and re quirements concerning the installation site f f Inform users that water may drip from the safety valve dur ing the heat up process f f Hand over these operating and installation instructions to users for safekeeping 11 2 Recommissioning If the appliance is switched off due to an interruption to the power supply...

Page 22: ...o maintain a consistently high appliance output check the evap orator of the appliance regularly for contamination and clean as necessary f f Remove the appliance casing see chapter Removing the casing f f Carefully clean the evaporator fins Only use water and a soft brush for this Never use acidic or alkaline cleaning agents 13 4 Water treatment Depending on water temperature and hardness accordi...

Page 23: ...onnections D0000045895 657 360 190 190 130 130 150 130 432 300 d45 b06 c01 c06 g02 g01 WWS 20 c01 Cold water inlet Male thread G 3 4 c06 DHW outlet Male thread G 3 4 d45 Condensate drain Diameter mm 20 b06 Junction box g01 Air intake Nominal diameter DN 160 g02 Air discharge Nominal diameter DN 160 ...

Page 24: ... the information and limitations for the relevant connection types see chapter Water connection Connection to the DHW cylinder Heating the DHW cylinder via the inlet pipe WWS 20SBB 20mit 20Lanze Example Heating the DHW cylinder via the inlet pipe in combination with solar thermal WWS 20SBB 20mit 20Lanze 20und 20SOL ...

Page 25: ... DHW cylinder via the integral smooth tube indirect coil WWS 20SBB 20mit 20WT Note At a temperature differential of 5 K between the flow and return the thermal output of the heat pump see chapter Specification must be transferred via the coil Due to the additional heat transfer this installation may result in different and lower output and efficiency data ...

Page 26: ... voltage to the switching inputs f f Always use floating contacts Elt 20Haupt 20WWS 1 2 3 F1 Switching input for control sensor F2 Switching input for display sensor optional E2 Switching input for power supply utility shutdown optional E3 Switching input for power supply utility shutdown set value increase or external fan control optional 1 DHW heat pump 2 Junction box 3 Mains power Domestic elec...

Page 27: ...ing input for control sensor F2 Switching input for display sensor optional E2 Switching input for power supply utility shutdown optional E3 Switching input for power supply utility shutdown set value increase or external fan control optional 1 DHW heat pump 2 Junction box 3 Threaded immersion heater BGC 4 Mains power Domestic electricity meter ...

Page 28: ...itching input for control sensor F2 Switching input for display sensor optional E2 Switching input for power supply utility shutdown optional E3 Switching input for power supply utility shutdown set value increase or external fan control optional 1 DHW heat pump 2 Junction box 3 Floating output on inverter 4 Mains power Domestic electricity meter ...

Page 29: ...N PE L N PE L N PE L N PE 2 L N PE X2 x1 x2 F1 x1 x2 F2 F2 PE L N PE A1 D0000068748 1 1 Power plug A1 Controller E2 Power supply utility input E3 Smart grid input F1 Control sensor temperature at the centre of the DHW cylinder F2 Display sensor temperature at the top of the DHW cylinder F3 Defrost sensor on the evaporator HD Pressure switch M1 Compressor motor M2 Fan motor M3 Charging pump motor X...

Page 30: ...0 5 1 1 5 2 2 5 3 5 2 1 4 7 10 13 16 19 22 25 28 31 35 C 45 C 50 C 60 C D0000046741 X Air temperature C Y Heating output kW 14 5 Power consumption 0 40 0 45 0 50 0 55 0 60 0 65 0 70 5 2 1 4 7 10 13 16 19 22 25 28 31 35 C 45 C 50 C 60 C D0000046741 X Air temperature C Y Power consumption kW ...

Page 31: ...m 657 Depth mm 657 Weights Weight kg 45 WWS 20 Connections Heat pump connection G 3 4 Condensate connection mm 22 Air duct connector top mm 160 In the case of hydraulic action via inlet pipe DHW connector cylinder min G 1 In the case of hydraulic connection via side inlet connectors Inlet connector cylinder min G 1 In the case of hydraulic connection via smooth tube indirect coil Heat transfer sur...

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