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www.stiebel-eltron.com 

WWK 221-301 electronic | 

17

INSTALLATION  

 

Preparations

Examples of unacceptable 
installations

 

atmospheres containing ammonia sewage works, pigsties
substances which block the evap-

orator 

 

 

air containing oil or fat, dust (cement, 

flour, etc.). Note: If the air contains hair-

spray (e.g. in hairdressing salons), the 

appliance should be operated at shorter 

maintenance intervals.

saline environments 

Coastal installations (< 200 m from the 

coast) can reduce component service life.

atmospheres containing chlorine 

or chloride

swimming pools, salt works 

atmospheres containing thermal 

water

  

Areas in proximity to high frequen-

cy machines

inverters for large motors, radar, etc. 

 

Note

The appliance output data are calculated according to 

standard, using the intake temperature specified in the 

data table. Below this temperature the appliance efficien-

cy and output decrease. The heat-up time is extended.

Sound emissions

The sound emissions are louder on the air intake and air discharge 

sides of the appliance than on the closed sides.

f

f

Never direct the air intake or air discharge towards 

noise-sensitive rooms of the house, e.g. bedrooms.

 

Note

For details on sounds emissions, see chapter "Specifica-

tion / Data table".

 

Note

The fan speed affects noise emissions.

Never set the fan speed higher than necessary.

See chapter "Commissioning / Fan setting subject to pres-

sure drop".

9.4  Siting the appliance

 

Note

Accessories are located in the corners of the packaging. 

Remove the accessories before disposing of the pack-

aging.

f

f

Carefully undo the cardboard packaging at the clips.

D

00000

34

79

7

1

1  Cardboard packaging clips
The appliance is secured to the pallet with metal brackets and 

screws. The metal brackets are hooked on to the feet underneath 

the floor plate of the appliance.

1.

2.

D

00000

34

79

8

1

1  Metal bracket fixing screw

f

f

Remove the fixing screws of the metal brackets from the 

pallet.

f

f

Push the metal brackets a little towards the cylinder centre to 

unhook them from the appliance feet.

f

f

Pull the metal brackets out from underneath the appliance.

!

 

Material losses

Take note of the appliance's weight and centre of gravity.

f

f

Slightly tip the appliance and carefully roll the appliance off 

the pallet.

f

f

Position the appliance in the final installation site.

Summary of Contents for WWK 221 electronic

Page 1: ...OPERATION AND INSTALLATION DHW heat pump WWK 221 electronic WWK 301 electronic WWK 301 electronic SOL...

Page 2: ...Condensate drain 21 10 5 Power supply 21 10 6 Assembling the appliance 24 11 Commissioning 24 11 1 Initial start up 24 11 2 Recommissioning 26 12 Appliance shutdown 26 13 Troubleshooting 26 13 1 Reset...

Page 3: ...he cold water supply line must be at least 20 below the response pressure of the safety valve If the maximum pressure in the cold water supply line is higher install a pressure reducing valve Size the...

Page 4: ...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 appliance 2 2 General s...

Page 5: ...r which turns into condensate The condensate is removed from the appliance via the condensate drain The appliance has an electronic control unit with LC display You can select the available amount of...

Page 6: ...t the electric emergency booster heater can be activated in emergency mode if the symbol ser vice fault is flashing See chapter Operation Rapid heat up key Emergency heating mode In the event of a hig...

Page 7: ...ating is interrupted during the defrosting process The appliance switches off the fan during the defrosting process The compressor continues to run The defrosting process is shown on the appliance dis...

Page 8: ...pressor are separately supplied with voltage This connection option is required if the appliance is to be operated via switchable sockets in an energy management system see Electrical connec tion chap...

Page 9: ...rrent actual temperature is shown The actual temperature indicates the temperature in the upper section of the DHW cylinder and largely corresponds to the outlet temperature Set temperature 1 Note For...

Page 10: ...has set this value during commissioning Air intake temperature display An A appears as the intake temperature symbol The current air intake temperature is displayed The air intake temperature is only...

Page 11: ...ded by E appears if the fault relates to the re frigerant circuit Notify a qualified contractor 4 3 Quick heat up key Press the Quick heat up key The heat pump and electric emergen cy booster heater s...

Page 12: ...pray the appliance with water Never spray water into the appliance WARNING Injury Maintenance work such as checking electrical safety must only be carried out by a qualified contractor Appliance compo...

Page 13: ...ter Increasing the room size by opening a door to another room will remedy this High power consumption The lower the intake tempera ture the lower the heat pump efficiency Avoid low intake tempera tur...

Page 14: ...After an hour of defrosting the evaporator temperature has not yet reached 3 C The compres sor is faulty The fault is reset once the evaporator temper ature rises to 3 C If the fault is continuous ly...

Page 15: ...ide air intake and dis charge connections 8 2 Required accessories Various safety assemblies are available that are selected according to supply pressure These type tested safety assemblies protect th...

Page 16: ...ding this can lead to frost damage e g on water pipes Material losses Please observe the installation site requirements listed below and the air extraction or intake locations Failure to observe this...

Page 17: ...des f f Never direct the air intake or air discharge towards noise sensitive rooms of the house e g bedrooms Note For details on sounds emissions see chapter Specifica tion Data table Note The fan spe...

Page 18: ...tal air routing with a side air intake and discharge vertical air routing with air intake and discharge in the appliance cover or a combination of the two thus ensuring flexible installation options a...

Page 19: ...longer visible D0000047034 f f Seal the transition from the external hose to the connector with self adhesive thermal insulation tape D0000047035 f f Secure the external hose with the hose clip to the...

Page 20: ...t unacceptable ex cess pressure The diameter of the cold water supply line must be no greater than the diameter of the safety valve f f Ensure that the expansion water escaping from the safety valve c...

Page 21: ...aterial losses Avoid open vented solar thermal systems and plastic pipes which are permeable to oxygen With plastic pipes that are permeable to oxygen oxygen diffusion can cause corrosion on the steel...

Page 22: ...the impressed current anode must not be subject to the effects of such devices but sup plied independently For such cases the appliance allows separate power supplies for load compressor and electroni...

Page 23: ...10 15 20 25 30 35 40 45 50 55 60 65 70 75 t min D0000034613 A External signal B Compressor 1 20 min minimum runtime set temperature 2 2 20 min minimum compressor idle time f f Remove the appliance cov...

Page 24: ...tes 11 1 1 Fan setting subject to pressure drop The appliance requires a constant air flow rate of 350 m h to op erate correctly If an air duct is connected the fan output must be adjusted in the appl...

Page 25: ...ion check f f Switch the mains power ON f f To check function select the maximum set temperature Note Following an interruption of the power supply the compressor operation remains blocked for at leas...

Page 26: ...y for longer periods if you are also draining the DHW cylinder If you want to switch the appliance off for a longer period always drain the DHW cylinder See chapter Maintenance Draining the appliance...

Page 27: ...cts the appliance from overheat ing The electric emergency booster heater is switched off when the cylinder water temperature exceeds 85 C f f Once the cause of the fault has been removed press the re...

Page 28: ...and clean the appliance evaporator if necessary f f Undo the screw that secures the appliance cover at the upper side of the control fascia f f Remove the control fascia and the appliance cover f f Ca...

Page 29: ...he valves if necessary f f Check the function of the valves 14 8 Condensate drain f f Check whether the condensate drain is clear of obstructions Remove contaminants 14 9 Replacing the power cable WAR...

Page 30: ...WK 221 electronic b01 Cable entry c01 Cold water inlet Male thread G 1 c06 DHW outlet Male thread G 1 c10 DHW circulation Male thread G 1 2 A d45 Condensate drain Male thread G 3 4 g01 Air intake Nomi...

Page 31: ...1 Cable entry c01 Cold water inlet Male thread G 1 c06 DHW outlet Male thread G 1 c10 DHW circulation Male thread G 1 2 A d45 Condensate drain Male thread G 3 4 g01 Air intake Nominal diameter DN 200...

Page 32: ...N 160 g27 Air discharge optional Nominal diameter DN 160 h22 Sensor heat source Diameter mm 9 6 h23 Sensor heat source optional Diameter mm 9 6 i43 Cover for manufacturing aperture 15 2 Wiring diagram...

Page 33: ...BN BU GNYE X1 X1 X0 X14 V2 V1 11 LL1 N 12 13 X19 X15 X18 T2 T3 T4 X3 X2 N1 L N LL2 L L1 V2 L N V1 HD ND N1 X4 X11 X12 X10 X16 X9 X6 X5 X23 X20 X22 X21 PWM X17 coat cap storage tank BN BU 1 2 A B N1 F1...

Page 34: ...10 98 12 23 12 23 Power consumption standby period EN 16147 A20 kW 0 023 0 026 0 030 Power consumption standby period EN 16147 A15 kW 0 028 0 032 0 036 Power consumption standby period EN 16147 A7 kW...

Page 35: ...60 200 160 Air duct connector top mm 160 160 160 Values Type of anode Impressed current anode Impressed current anode Impressed current anode Air flow rate m h 350 350 350 Available external pressure...

Page 36: ...LTRON OY Kapinakuja 1 04600 M nts l Tel 020 720 9988 info stiebel eltron fi www stiebel eltron fi France STIEBEL ELTRON SAS 7 9 rue des Selliers B P 85107 57073 Metz C dex 3 Tel 0387 7438 88 Fax 0387...

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