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Brine/water heat pumps Operating Manual WZS series UK 83056600aUK – Translation into English of the original German operating manual

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Page 1: Operating Manual - Maaküte

Brine/water heat pumps

Operating ManualWZS series

UK

83056600aUK – Translation into English of the original German operating manual

Page 2: Operating Manual - Maaküte

2 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Contents

1 About this operating manual ................................31.1 Validity ...............................................................................3

1.2 Reference documents .............................................3

���� ������ ����������� ����� ������ ..............3

1.4 Contact .............................................................................4

2 Safety ..........................................................................................4

2.1 Intended use .................................................................4

���� ����������� ���� ���� .........................................4

2.3 Personal protective equipment ..........................4���� ������ ������� ...............................................................4

2.5 Disposal ...........................................................................52.6 Avoid damage to property.....................................5

3 Description .............................................................................6

3.1 Layout ...............................................................................63.2 Accessories ...................................................................8

3.3 Function ...........................................................................8

4 Operation and care .......................................................9

4.1 Energy and environmentally aware operation .........................................................................9

4.2 Maintenance .................................................................9

5 Delivery, storage, transport and installation .........................................9

5.1 Scope of supply ..........................................................9

5.2 Storage .............................................................................9

���� ��! ������ ����� ��!�� .....................................10

5.4 Installation ....................................................................11

6 Installation and connection .................................11

6.1 Dismantle the module box ..................................11

6.2 Installing the module box ....................................15

6.3 Install the hydraulic connections .....................15

6.4 Connect the electrical cables ............................16

6.5 Installing the control unit ......................................17

"� #���$���%�������� ���&������� ..............................18

7.1 Remove the front panel of the module box ....................................................18

7.2 Heating water quality .............................................18

"��� #���%�'��$� ���&����$� ������� ........................19

7.4 Vent the circulation pump of the heat source ....................................................19

"��� #���$� ��������$��$� ����� ��� domestic hot water charge circuit ..................20

"�(� #���$%����� ���&�����$�� ��������$��) ����� �� .......................................20

8 Insulate hydraulic connections ........................21

*� �����$��&��')�& �&� ..............................................21

10 Commissioning ................................................................21

11 Maintenance .......................................................................22

11.1 Basic principles .........................................................22

11.2 Maintenance as required .....................................22

11.3 Yearly maintenance ................................................22

����� +�� �� ���'��$��$���& !� ��� and condenser ...........................................................22

12 Faults .........................................................................................23

����� �������$��� 9�������!�� ������������ ..........23

13 Dismantling and Disposal .....................................23

13.1 Dismantling ..................................................................23

13.2 Disposal and Recycling ........................................23

AppendixTechnical data/Scope of supply ........................ 24Performance curves ......................................... 26Dimensioned drawings ..................................... 31Installation plans ............................................... 33Hydraulic integration, unit variant H (heating) .. 36Terminal diagram .............................................. 40Circuit diagram 1/3 ........................................... 41EC Declaration of Conformity ........................... 47

Page 3: Operating Manual - Maaküte

3Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

1 About this operating manualThis operating manual is part of the unit.

< =�9��� )������ �� �� )��$� �$�� ����� �� �� �$��operating manual carefully and follow it for all activities at all times, especially the warnings and safety instructions.

< Keep the operating manual to hand at the unit and hand over to the new owner if the unit changes hands.

< If you have any questions or anything is unclear, ��� �$�� �� �� ! ������ 9� �$�� � ��9 ������� �� �$��factory's customer service.

< Note and follow all reference documents.

1.1 ValidityThis operating manual refers solely to the unit iden-������ �� �$�� � ��!� ��� ��� ����� �������� ?��“Rating !� ��@���! ���(� ���J������������@���! ����Q�

1.2 Reference documentsThe following documents contain additional informa-tion to this operating manual:

[ Planning & design manual, hydraulic integration

[ Operating manual of the heating and heat pump controller

[ Brief description of the heat pump controller

[ Operating manual of the expansion board

[ ]��, if included with this unit by the manufacturer

������������^$�� ����� �������� ��� ���� ��!�� ��� ��9�� ���� 9��contact with the manufacturer or the local partner of the manufacturer.

< �������� �$��������������� ? �����)��$����� �� ���product number) here.

1.3 ������ ����������� ����� ������

_������� ����9�) ������

Symbol MeaningSafety-relevant information. Warn-ing of physical injuries.

DANGER Indicates imminent danger resulting in severe injuries or death.

WARNING Indicates a potentially dangerous situation, which can result in severe injuries or death.

CAUTION Indicates a potentially dangerous situation, which can result in moder-ate or minor injuries.

ATTENTION Indicates a potentially dangerous situation, which can result in prop-erty damage.

Symbols in the document

Symbol MeaningInformation for the professional

Information for the owner/operator

� Requirement for an action� Single step action prompt1., 2., 3. ... Numbered step within a multi-step

action prompt. Keep to the given order.Additional information, e.g. note on � ����� )��%� ��9�� ���� �� �� ��-ards

�� Reference to further information elsewhere in the operating manual or in another document

Page 4: Operating Manual - Maaküte

4 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

1.4 ContactAddresses for purchasing accessories, for service cases or for answers to questions about the unit and this operating manual can be found on the internet at �������� ��������!���!���� ��`

[ Germany: www.alpha-innotec.de

[ EU: www.alpha-innotec.eu

2 SafetyOnly use the unit if it is in proper technical condition and only use it as intended, safely and aware of the hazards, and follow this operating manual.

2.1 Intended useThe unit is solely intended for the following functions:

[ Heating

[ Domestic water heating

[ Cooling (optional, with accessories or unit type ...K3M)

< Proper use includes complying with the operating conditions (��“Technical data/Scope of supply” on page 24) and the operating manual and noting and following the reference documents.

< When using the local regulations note: laws, standards, guidelines, directives.

All other uses of the unit are not as intended.

2.2 ����������� ���� ����All instructional information in this operating manual is ��������������� ���� �����%���������!���������

k���� �� �����%� �������� !�������� ��� ��� �� � ���� ����$��)������$�������� 9���� �������������_����9��������� ���� ������ !�������� � �� � ���� ��9�{�$�� �������injuries and damage to property.

< Ensure that the personnel is familiar with the local regulations, especially those on safe and haz- ��{ ) ���)������

< k���� ��)� �� ������ !�������� )��$� J�������� �@��� ������ �� � ���� ��� )��� �� �$�� ���������� ���electronics.

< k���� ��)���������!������������ ����$���)���on the system, e.g.

– Heating installer – Plumbing installer – Refrigeration system installer (maintenance

)��Q

During the warranty and guarantee period, service )��� �����! ����� ��������� �����������!��������authorised by the manufacturer.

2.3 Personal protective equipment^$������� ������9�������������$ �������$ �!�������9�the unit.

< Wear cut-resistant protective gloves during transport.

2.4 ������ �������

}���������$��Components in the unit are live with life-threatening voltage. Before opening the unit panelling:

< Disconnect unit from power supply.

< ������������ � �����������)���$��� ����� � ���

_�~����������' �� ����������� ���potentially explosive atmospheresConstituents of antifreeze mixtures, e.g. ethanol, ���$ ��%� ���$��$���' �� ��� ���9��� ����!���&��atmosphere:

< mix antifreeze in well-ventilated rooms.

< ���� �$�� $ � ����� ���� ���� � ������� ���comply with the relevant safety regulations.

Page 5: Operating Manual - Maaküte

5Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Injuries and environmental damage due to refrigerantThe unit contains harmful and environmentally danger-�����9����� ����_9���9����� ����� ���9����$������`�

1. Switch off unit.

2. Thoroughly ventilate installation room.

3. Notify authorised customer service.

2.5 Disposal

BatteriesImproper disposal of the buffer battery damages the environment.

< Dispose of the buffer battery in an environmentally compatible way according to the local regulations.

Media harmful to the environmentImproper disposal of environmentally harmful media (antifreeze, refrigerant) damages the environment:

< Collect media safely.

< Dispose of the media in an environmentally com-patible way according to the local regulations.

2.6 Avoid damage to property

Improper actionRequirements for minimum scale and corrosion dam-age in hot water heating systems:

[ Proper planning, design and start-up

[ Closed system with regard to corrosion

[ Integration of adequately dimensioned pressure generation

[ Use of deionised heating water (VE water)

[ Regular servicing and maintenance

If a system is not planned, designed, started up and operated according to the named requirements, there ��� �������$ ���$��9��)����� � ��� ���9 �����)��������`

[ Malfunctions and the failure of components, e.g. pumps, valves

[ Internal and external �� ��, e.g. from heat exchangers

[ Cross-section reduction and ��� ��� in compo-nents, e.g. heat exchanger, pipes, pumps

[ Material fatigue

[ Gas bubbles and gas cushion formation (cavitation)

[ Negative effect on heat transfer, e.g. formation of coatings, deposits, and associated noises, e.g. boiling noises, ') noises

< Note and follow the information in this operating � �� ��9�� ���)����� ���)��$��$�������

������ ����� �����9��$������ ���� ��{�!�water in the heating circuit^$�� �9�������� 9� �$�� ������� ��� �$�� ��9�� 9� �$�� $� ��generator and the heating components depend deci-sively on the quality of the heating water.

_9� �$�� ������� ��� ������ )��$� ����� ���� �������� ) ���%�calcium precipitates as scale. Limescale deposits form ���$��$� ���� ��9������9 ����9� �$��$� ������^$���9�-ciency drops and energy costs rise. In extreme cases the heat exchangers are damaged.

< Fill system with deionised heating water (VE water) only.

Unsuitable quality of the water in the domes-����$��) ����� ��

< Ensure that the electrical conductivity of the ��������) ������� ���� �������������

Unsuitable quality of the water or the water-antifreeze mixture in the heat source

< For operation of the heat source with water or water-antifreeze mixture, ensure that the water 9������ �$�� �� ����� �!����� ����� 9� �$�� $� �����water side.

Using groundwater < If using groundwater install an intermediate

exchanger.

Page 6: Operating Manual - Maaküte

6 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

3 Description

3.1 Layout

NOTEThis section essentially names the ��!������ ����& ��� 9�� 9��������� �$�� � ����described in this operating manual.

Heat station

1 3-way changeover valve, heating circuit/domestic hot water

2 Valve motor

3 Venter

4 Position of rating plate

�� k&��')�& �&�

6 Electrical switch cabinet

"� ��������$��) ����� ��������

8 Module box

9 Height-adjustable foot (4x)

��� ��������$��) ����� ��

11 Heating circuit/hot water circulation pump

12 Manual output control heating element (MLRH), accessories

13 Heating element

Rating plateOne rating plate is attached at the top of the heating station, a second one on the left on the module box. The rating plate contains the following information at the top:

[ Unit type, product number

[ Serial number, unit index

The rating plate also contains an overview of the most important technical data.

1

8

9

3 4 5

7

6

2

12

13

11

10

Page 7: Operating Manual - Maaküte

7Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Module box, variant without cooling

6

5

7

8

1

3

4

2

1 Compressor

2 Condenser

3 Vibration isolator (4x)

4 Lifting lug (4x)

5 Evaporator

6 Heat source circulation pump

"� �� ��������������� ����� ���� !

�� �� ������������ ����� ���� !

Module box, variant with cooling

6

5

7

9 8

1

2

3

4

1 Compressor

2 Condenser

3 Vibration isolator (4x)

4 Lifting lug (4x)

5 Evaporator

6 Heat source circulation pump

"� �� ��������������� ����� ���� !

�� �� ��������������� ����� ���� !

*� �� ������������ ����� ���� !

Page 8: Operating Manual - Maaküte

8 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Control unit

3

1 2

1 Control unit

�� ���$��!�' !��!���� ��9���=����������?9���� ������!��������9���9�) ���updates and for data logging)

�� � ��{�������� �����?���������� ���for wall-mounted installation)

Underside of control unit

1 3 42

1 RBE (RS 485)

�� ���)���� �����������

3 LIN bus cable connection to the heat pump

4 not used

3.2 AccessoriesThe following accessories are available for the unit through the manufacturer's local partner:

[ Additional cover for the front cover panel, if the control unit is mounted on the wall

[ Room thermostat for switching the cooling function (if available)

[ Dew point monitor for protecting a system with cooling function at low ') temperatures

[ Expansion board for automatic changeover between heating and cooling mode

[ Manual output control heating element (MLRH) for limiting the output of the electric heating element

[ “Cooling ! �� ��” for ���������� type H units with a cooling function

3.3 FunctionLiquid refrigerant is evaporated (evaporator), the energy for this process is environmental heat and comes from the “ground” heat source (collector, borehole heat exchanger or groundwater via intermediate exchanger). The gaseous refrigerant is compressed (compressor), this causes the pressure to rise and therefore the temperature too. The � �������9����� ���)��$�$��$����!�� ����� ��� ���������(condenser).

Here the high temperature is discharged to the heating water and is used in the heating circuit. The liquid refrigerant with high pressure and high temperature is expanded (expansion valve). The pressure and temperature drop and the process begins again.

Due to the integrated changeover valve and the ������ ���� ������� �9�������� ������ ���� !��!� �$��heated heating water can be used for charging the domestic hot water or for heating the building. The temperatures required and use are controlled by the heat pump controller. Reheating, drying out screed or increasing the domestic hot water temperature can be carried out using the integrated electric heating element, which is activated by the heat pump controller as and when necessary.

��� ������ ���� &��')� & �&�� �������� �$ �� �$�� $� ��pump does not switch to high-pressure fault if all heating circuits are closed. The integrated vibration isolators for the heating circuit and heat source prevent structure-borne sound and vibrations from being �� ��9����������$�������!�!��� ����$���9��������$��building.

Page 9: Operating Manual - Maaküte

9Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

CoolingCooling is integrated in type K units. Type H units can ������������)��$��$��J+�����! �� ��@� �����������The following options are possible for units with cooling function (��operating manual of the heating and heat pump controller):

[ Passive cooling (without compressor)

[ Control of the cooling function via the heating and heat pump controller

[ Switching between heating and cooling mode; automatically with expansion board (accessories)

���)���������������$������������The control unit can be connected to a computer or ���)��� &� � � ���)��� � ���� ^$�� $� ����� ��� $� ��pump controller can then be controlled from the ��!�������9����$�����)���

4 Operation and care

NOTEThe unit is operated via the control unit of the heating and heat pump controller (� operating manual of the heating and heat pump controller).

4.1 Energy and environmentally aware operation

The generally accepted requirements for energy-aware and environmentally-aware operation of a heating system also apply to use of a brine/water heat pump. The most important measures include:

[ No unnecessarily high ') temperature

[ No unnecessarily high domestic hot water temperature (note and follow local regulations)

[ Do not open windows with gap /tilt open (continuous ventilation), but instead open wide for a short time (purge ventilation).

4.2 MaintenanceWipe down the outside of the unit only using a damp cloth or cloth with mild cleaning product (washing-up liquid, neutral cleaning product). Do not use any harsh, abrasive, acid or chlorine-based cleaning products.

5 Delivery, storage, transport and installation

5.1 Scope of supply

NOTEOn delivery the accessories are enclosed in �)�! �� �������$��$� ������� ����

< +$���� ����&���� ������ ����� 9���� �����!�� 9��outwardly visible damage and completeness.

< Notify supplier of any defects immediately.

^$����! � ���! ��������������� ���`

[ ������� with the unit number for attaching to page 3 of this manual

[ Control unit consisting of wall � ����, cover, control with rear � ����

[ 6-mm anchors with screws (2x each) for wall-mounting the control unit

[ Safety valve, outdoor sensor

[ Compression �������

[ Replacement material after dismantling the module box: Insulation hoses (2x), cable ties (4x), O-rings (6x)

5.2 Storage < �$���� !������ �� ��� ��! ��� �$�� ����� ������

directly before installation.

< Store unit protected against:

– Moisture/damp – Frost – Dust and dirt

Page 10: Operating Manual - Maaküte

10 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

5.3 ��! ������ ����� ��!��

Notes on safe transportThe heating station and the module box are heavy (��“Technical data/Scope of supply” on page 24). ^$������� ������9���~��������� � �����!�!������9��$��heating station falls or overturns or if the module box falls.

< The heating station and module box must be transported and installed by several persons.

< Secure the heating station during transport. Carry the module box by the carrying lugs.

^$������� ������9�������������$ �������$ �!�������9�the unit.

< Wear cut resistant protective gloves.

The hydraulic connections are not designed for mechanical loads.

< Do not lift or transport the unit by the hydraulic connections.

If the module box is tilted by more than 45°, compressor oil runs into the cooling circuit.

< Do not tilt the unit with installed module box by more than 45°.

^� ��!��� �$�� ����� !��9�� ��� )��$� � ! ����� �����%�alternatively with a handcart.

^� ��!���)��$� �! ���������� < Transport the unit to the place of installation

! �� ���� ������������� �)����! �����

��! �����

NOTE_9��$��������������� ��!������� �! ����������`������ ��9��99� �$��! ����������� 9������! ������and dismantling the housing panels.

1. ���&�� !� ����� ������ }������ �$ �� ��� �� ���damage the unit.

2. ���!��� 9� �$�� �������� � ����%� �� ��!��� ���! �� ������ ���� �� ��� ����&������� ���� 9��������way according to local regulations.

3. ���&�� �$�� ���� 9��� �$�� !� ����� �������� 9� �$��front panel in the place of installation.

Dismantle housing panels for transport with handcart or carrying the unit

� ����������! �����?��J��! �����@���! �����Q�

1. To avoid damage to the housing panels:

– Undo 2 screws at the bottom of the front panel. – Lift up the front panel and put down in safe

place. – Undo 3 screws in each side panel. – Lift up side panels and put down in safe place.

8x

1.

2.

3.

Transport with a handcart

NOTE [ If transporting with a handcart the module

box must be pushed in. [ ^$���������)��$��$��$ ��� ����$)���� ��-

porting the unit on its left-hand side; it can also be transported on its right-hand side.

� Housing panels are dismantled.

Page 11: Operating Manual - Maaküte

11Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

1. To avoid damage: On a handcart, load the unit on its side only.

2. Transport unit on the handcart.

Carrying the unit � Housing panels are dismantled.

1. Dismantle module box and carry it by the support lugs to the place of installation.

2. Carry the unit horizontally wherever possible.

5.4 Installation

Installation room and space requirements

NOTENote and follow the local regulations and standards regarding the installation room and space requirements. The table shows the regulations to EN 378-1 relevant in Germany.

Refrigerant Limit value [kg/m³]R 134a 0.25R 404A 0.48R 407C 0.31R 410A 0.44

(��“Technical data/Scope of supply” on page 24).

Minimum room volume = ��9����� ���� ! �������������]�����& �����������

NOTEIf several heat pumps of the same type are installed only one heat pump need to be � ���� ���� ������� _9� ��&�� �� $� �� !��!��of different types are installed, only the heat pump with the largest refrigerant volume ����������� �������� ������

� Minimum volume corresponds to the requirements for the refrigerant used.

� Installation inside the building only.

� Installation room is dry and frost-free.

� Clearance dimensions are met (��“Installation plans” on page 33).

� Th�����9 ���'�� ������� ���9�� ���� �� ����9� �$��unit:

– level and horizontal – load-bearing capacity for the unit's weight

Aligning the unit < Align the unit horizontally and stably in the

installation site using the height-adjustable feet and a spanner size SW 13. Adjustment range: 25 to 50 mm.

6 Installation and connection

6.1 Dismantle the module box

ATTENTIONIf the module box is tilted by more than 45°, compressor oil runs into the cooling circuit.

< Do not tilt the module box by more than 45°.

NOTE [ If necessary the module box can be

dismantled for easier transport of the unit or for service reasons.

[ Steps 1 to 5 are only required if the module �������������� ���������

� Unit is safely disconnected from the power supply ��� !�������� � ����� ����� �)���$��� ��� ��again.

Page 12: Operating Manual - Maaküte

12 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

1. Remove the front panel of the module box (��“7.1 Remove the front panel of the module box” on page 18).

2. Close shut-off valves to the heating circuit.

3. �� ��� �$�� ����� &� � �$�� ������� ��� �� ��� � !� 9� �$��heating.

< Unit without cooling:

< Unit with cooling:

4. Use a spanner to close the shut-off valves of the heat source (behind the covers).

Page 13: Operating Manual - Maaküte

13Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

5. �� ��� �$�� ����� &� � �$�� ������� ��� �� ��� � !� 9� �$��heat source.

< Unit without cooling:

< Unit with cooling:

6. Disconnect the electrical connections.

– Disconnect 2 white connectors (1) at the bottom of the electrical control cabinet. To do this, release the latching lugs by pressing on the sides of the connectors.

– ���������$��� ������� ���� ����������?�Q� ��the top of the module box.

1

2

7. Remove the insulation on the hydraulic connections.

Page 14: Operating Manual - Maaküte

14 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

8. Remove 3 clips on the hydraulic connections.

9. Use spanner size SW 52 to unscrew the heating ')�

10. Disconnect the hydraulic connections; to do this, push the pipes downwards as far as necessary.

11. Remove the 2 side retaining screws.

12. ̂�!�������$��'�� ����&���$����������?�Q�more easily: place boards (4) under it, e.g. from �$��! �� ������ ���� ��

13. ]�9�� ���$�������?�Q����$��$� �����')�

14. Slowly and carefully pull out the module box by the retaining loops (2). Ensure that none of the pipes are damaged

2

3

4

1

1.

2.

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15Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

15. Pull out the module box completely and place it on the boards.

6.2 Installing the module box1. Place the module box carefully in the bottom in the

heating station and slowly and carefully push it in.

– At the same time, lift and hold the nut on the $� �����')�

– Ensure that none of the pipes are damaged.2. Attach the two side retaining screws.

3. +������ �$�� $� ����� ')� ��� $��� �����connections. At the same time, replace O-rings on the heat pump connections (����! � ���! ���included).

4. Perform pressure test and insulate pipes with the enclosed insulation hoses (����! � ���! ��Q��

5. Connect the electrical connections.

– Plug in 2 white connectors at the bottom of the electrical control cabinet. Ensure that the connectors move easily and the lugs latch into position.

– ���������$��� ������� ���� ���������� ���$��top of the module box.

6.3 Install the hydraulic connections

ATTENTIONDamage to the copper pipes due to unacceptable loading!

< Secure all connections against twisting.

NOTEThe heat source can be connected from the top, right or left.

� The heat source system has been installed in ���� ���� )��$� �$�� �!����� ����� ?� planning & design manual, dimensioned diagrams, installation plans).

� Cross-sections and lengths of the pipes for the heating circuit and heat source are dimensioned adequately.

� The free pressure of the circulation pumps produces at least the minimum throughput required for the unit type (��“Technical data/Scope of supply” on page 24).

� The cables for the heat source and the heating �����������$��) �������������&� � ������!����

_��� ����$����!��������������� ��� ���valves

ATTENTION]� ����� 9� ������9� �$��������������� ���������&��force!

< Tighten the union nut only as far as described here.

1. +$���� !�!�� ����� 9�� ��� ��$��%� ����� ���deformation.

2. +$����!�!���!������9��$���� �!������������$���������

3. Push the pipe through the clamping ring up to the ��������!�����$���������

4. Tighten the union nut hand-tight and attach ) ���!�9�� ������

5. Tighten union nut with 3/4 rotation.

6. +$�������������9���� ���

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16 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

_9��$������������� ��`

1. ������������� ����$����!�!��9��� � ����

2. Tighten the union nut hand-tight and retighten with the open-ended spanner with 1/8 to 1/4 turn, as the clamping ring is already in a clamping position.

Connect the unit to the heat source, domestic water pipes and heating circuit1. Install shut-off devices in the heating circuit.

2. Insert the vent at the highest point of the heat source and the heating circuit.

3. �������� ���`� #��� � ����� ������ )��$� ���$� �����0.9 mm onto the heat source inlet.

4. +�������$����������$��) ����� ��� ����������the local regulations.

5. Recommendation: To balance out pressure '���� ����� ��� ) ���� $ ������ ��� &���unnecessary loss of water, install an expansion &������)��$��$���${')��������

6. Ensure that the operating overpressures (� “Technical data/Scope of supply” on page 24) are not exceeded. Install pressure reducer if necessary.

6.4 Connect the electrical cables

ATTENTIONIrreparable damage to the compressor due to wrong �� ����������

< }������ �$ �� �$���� ��� �����)���� �� ���������� 9��the compressor load infeed.

Basic information on the electrical connection

NOTEEnsure that the unit is supplied with electricity �� �����������9����)��������������$������� ���attaching the unit panelling, switch the power ��!!��� ����������� �����

[ The �!����� ���� of the local power supply company may apply to electrical connections.

[ Fit the power supply for the heat pump with an all-pole miniature circuit-�� ��� with at least 3 mm contact spacing (IEC 60947-2).

[ Note the level of the tripping current (��“Technical data/Scope of supply” on page 24).

[ Comply with the electromagnetic compatibility regulations (EMC regulations).

– Lay the control/sensor cables and unit supply � �����9���������9 �� ! ���?��������Q�

– Lay unshielded power supply cables and �$�������� ����?]_������ ��Q�)��$���9�������distance between them.

[ Do not lengthen the patch cable and LIN bus cable. LIN bus cables up to 30 m long can be used.

���������$��� ���� ������������ ���� ���the connections1. Strip the sheathing of electrical cables before

laying in the cable duct of the control box.

2. Open electrical switchbox:

– Undo 2 screws at the top of the cover panel of the electrical control box.

– ��$���&���! ����

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17Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

3. Lay the control / sensor cables and unit supply cable and connect:

– Route cables through the reserve conduits (1) and (2) only, from above into the inside of the unit.

– Route cables from underneath through the cable openings in the control box (3).

21

3

– Connect cables to the respective terminals (� “Terminal diagram” on page 40).

Control the controller via a PC1. ������� ���� �� ���� � �� � �$������� ���)��� � ���

(category 6) through the unit.

2. ����� �$�� ��{��� �������� 9� �$�� ���)��� � ���into the bush of the control unit (1).

1 NOTE

^$�� ���)��� � ��� � �� �� ���������� �� ��������� ̂����$��%����� ������$��� ������!� ���

6.5 Installing the control unit

NOTEThe control unit can be inserted in a recess in the front panel of the unit or can be installed on the wall.

Insert the control unit in the unit and connect1. _9� ��������`� ���&�� � ������ !� ��� 9��� �$��

slot provided. To do this, press the latching lugs together and push out of the openings.

2. ���&������9����$��!� �������������9��$��9����panel.

3. Position the control unit in the recess in the front panel of the unit and press the latching lugs into the openings.

4. Cut the cable to length generously so that the front panel can be removed and placed to the side of the unit. Do not cut the cable ties for strain relief of the LIN bus cable at the electric control box.

– ]_������ ��� !!����������9����$��������9�the strain relief at the electrical control box

– All other cables approx. 1.2 m5. ����� ��������������$��]_������ ����� �)��9�

the cover around 20 cm in front of the connector (strain relief).

6. Push the cable through the opening in the front panel of the unit from below and into the control unit.

7. Insert cover in the free slot.

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18 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Mount the control unit on the wall and connect1. ���� ����$���� ��� �����9����$�������������

2. Cut off latching lugs (if visually obtrusive).

3. � ��� �� �����$���� ?� “Dimensioned drawing of ����������%�) ��{�������� ����@���! �����Q�

4. #��� �$�� ) ��{������� � ����� ?�Q� )��$�2 wallplugs (1) and 2 screws (3).

1

2 3

1.2.

3.

4.

5. Feed in the cables from the wall (e.g. in-wall box) or from below.

6. Push the control unit onto the wall-mounted � �����

7. Route the LIN bus cable from the top right-hand side at the rear from the heat pump and plug into the control unit at the bottom.

8. Push on cover. If applicable, position second cover (accessories) on the second unused slot.

7 #���$���%�������� ���&�������

7.1 Remove the front panel of the module box

< Unscrew the front panel of the module box.

7.2 Heating water quality

NOTE [ For detailed information refer, among

other things, to the VDI Guidelines 2035 “Vermeidung von Schäden in Warmwasserheizanlagen” (preventing damage in hot water heating systems).

[ Required pH value: 8.2 ... 10 [ for aluminium materials: pH value:

8.2 ... 8.5

< Fill the system with deionised heating water (VE water) only (low-salt operation of the system).

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19Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Advantages of low-salt operation:

[ Low corrosion-promoting properties

[ No formation of mineral scale

[ Ideal for closed heating circuits

[ ideal pH value due to self- �� ����� ��� after ������ the system

[ If necessary, simple �� ����� ��� to pH value 8.2 by adding chemicals

7.3 #���%�'��$� ���&����$� �������Water and the following antifreeze products are !!�&���9����������$��������������`

[ Monopropylene glycol

[ Monoethylene glycol

[ Ethanol

[ Methanol

< For operation of the heat source with water or water-antifreeze mixture, ensure that the water 9������ �$�� �� ����� �!����� ����� 9� �$�� $� �����water side.

< +$�����$ ��9����!���������������+������������

< Ensure that the antifreeze is compatible with the pipe, seal and other component materials used on site.

� Drain pipe of the safety valve is connected.

� Room is ventilated.

1. Flush heat source system.

2. Mix antifreeze with water thoroughly with the required ratio, before adding to the heat source.

3. +$���� �$�� ������� ���� 9� �$�� ) ���{ ���9������mixture. Frost protection: –13 °C

4. Fill the heat source with the water-antifreeze mixture.

5. Flush until the system is air-free.

7.4 Vent the circulation pump of the heat source

NOTEThe diagram shows the unit variant with cooling. In the unit variant without cooling the circulation pump is located in the same place.

1. Place vessel for collecting discharging liquid under the outlet.

2. Undo screw-on cap in the middle of the circulation pump.

3. Wait until liquid is discharged uniformly.

4. ����)��$��� !� ��������$����

5. Unscrew the front panel of the module box.

6. Dispose of collected liquid according to the local regulations.

7. Set system pressure to 1 bar.

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20 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

7.5 #���$� ��������$��$� ����� ���domestic hot water charge circuit

� Drain pipe of the safety valve is connected.

< Ensure that the set pressure of the safety valve is not exceeded.

1. ����� �$�� �{���!�?�Q� 99� �$�� '�� 9� �$�� & �&��motor�(1).

2. Pull the valve motor carefully upwards and off the 3-way changeover valve (3).

1.

2.

1

2

3

3. Turn the spindle of the 3-way changeover valve so that the rounded side of the spindle points in the ��������� 9� � �������� 9� �$�� ���������� 9� �$��3-way changeover valve.

AB

4. Flush the domestic hot water charge circuit for approx. 1 minute.

5. Turn the spindle so that the rounded side of the �!������!���������$�����������9�� ������=�9��$��connections of the 3-way changeover valve.

6. Flush heating circuit thoroughly, until no more air is discharged.

7. Position the valve motor (1) on the 3-way changeover valve (3).

8. _������ �$�� �{���!�?�Q� ���� �$�� '�� 9� �$�� & �&��motor.

1

3

2.

1.

2

9. Ensure that the U-clip has latched into position correctly:

– Valve motor sits securely on the 3-way changeover valve.

– Both prongs of the U-clip sit on the lug. – The tips of the U-clip are visible by approx.

�����?���������� ���������Q�

7.6 #���$%����� ���&�����$����������$��) ����� ��

� Drain pipe of the safety valve is connected.

< Ensure that the set pressure of the safety valve is not exceeded.

1. Open the domestic water inlet valve at the ��������$��) ����� ���

2. Open taps for domestic hot water.

3. #���$� �$����������$��) ���� � ��������� ������air discharges from the valves at the taps.

4. Close taps for domestic hot water.

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21Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

5. ^���� �$�� �~����������?�Q�9� �$��&��')�& �&��?�Q� ������ �$�� ���!�� ����� ��!� ��)���� �$�� ')�and return temperature is set as follows:

– at heat source temperature 0 °C: 8 K – at heat source temperature 10 °C: 10 K

2

1

6. Open valves to heating circuit.

7. Reset the heating and heat pump controller.

10 Commissioning

NOTE^$�� ����� ������� ��� ����� �� �� ���!� 9� �$����������$��) ���� � ����������� ������������� ������!��������

� Relevant planning & design data of the system is documented in full.

� T$����!���������������!!�����$ �������������of operation of the heat pump system.

� System is air-free.

� Inst �� �����$�����������$������� ���$��������$ ��been completed successfully.

1. }������ �$ �� �$�� 9��)���� !����� ��� 9��������completely:

– ���$�{$ ��� ?����)���Q� �� ����� � �� ��9������������ & �� ��� ���$����!������

– Heating station is installed and mounted according to this operating manual.

– The electrical installation has been carried out properly according to this operating manual and local regulations.

8 Insulate hydraulic connections

1. Insulate heating circuit, heat source and domestic water pipes according to the local regulations.

2. Open shut-off devices.

3. ���9��� �!������������� ����$����9���� ���

4. Insulate the internal piping of the module box with �$�� ����� ���� � ���� �� 9��� �$�� ��! � ��� ! ���included.

5. Insulate external piping on site.

6. _���� ��� ������������%��������� ���!�!���

7. Insulate heat source so that it is vapour-diffusion tight.

8. Insulate the heating circuit of units with cooling vapour-diffusion tight too.

9 �����$��&��')�& �&�

NOTE [ The activities in this section are only

������ ���9����{������ ��������� ���� [ +�!������$��)�����!���������%��$��)����

the maximum return temperature can be exceeded and the heat pump switches to high-pressure fault.

[ ^���� �$�� �~������� ��� �� �$�� &��')�valve to the right to increase the temperature difference (the temperature drop), turn it to the left to reduce it.

� System is running in heating mode (ideally in cold condition).

1. In case of low heating curve: Set the system to “Forced heating” (��operating manual of the heating and heat pump controller).

2. Shut off valves to the heating circuit.

3. }�������$ ���$���� ��')����������&� ��$��&��')�valve.

4. �� ����� �$��')� ��� ������� ���!�� ����� �� �$��heating and heat pump controller (��operating manual of the heating and heat pump controller).

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22 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

– The power supply for the heat pump is equipped with an all-pole miniature circuit-�� ���� )��$� �� �� ��� ����� ��� ��� �! �����(IEC 60947-2).

– The level of the tripping current is compliant. – ^$��$� ������������� ���$� �������� ���'��$���

and vented. – The frost protection of the heat source liquid is

at –13 °C. – All shut-off devices of the heating circuit are

open. – All shut-off devices of the heat source are

open. – The pipe systems and components of the

������� ����� ����$��2. Fill out carefully and sign the completion report for

heat pump systems.

3. In Germany and Austria: Send completion report for heat pump systems and ����� �� �$�������� �� �$�� � ��9 ���������factory customer service department. In other countries: Send completion report for $� �� !��!� �������� ��� ����� �� �$�������� �� �$��� ��9 ����������� ��! ������

4. Arrange for the heat pump system to be started up by customer service personnel authorised by the manufacturer; this is a chargeable service.

5. Ensure that the water supply to the domestic hot ) ����� ������!���

11 Maintenance

NOTEWe recommend that you sign a maintenance agreement with an accredited heating company.

11.1 Basic principlesThe cooling circuit of the heat pump requires no regular maintenance.

Local regulations– e.g. EU Regulation (EC) 842/2006 �� �����$����$����%����������� ���$������9��$ ��� �����9�� �����������!��9������ ���$� ��!��!��

^$��$���������� ����$������ �����9����� ��������� ������ ���������� � 9��)$��$��� � ����$ ��������!�� ����� ��������!��9���������%� ��� ��)$ ������������& ���

< Ensure compliance with local regulations with ��� ������$���!������$� ��!��!��������

11.2 Maintenance as required [ Yearly, more frequently if necessary:

– +$������� ������ ������$����!������9��$��heating circuit and the heat source, e.g. valves, ��! ����� &������%� ������ ���� !��!�%� ������%�dirt traps.

– +$������� �$�� 9������� 9� �$�� � 9���� & �&�� ?������Q� 9�� �$�� �������� $�� ) ���� � ��� ��� �$��safety valve for the heating circuit.

11.3 Yearly maintenance < Record the quality of the heating water analytically.

_��� ���9���&� �����9����$���!����� ����%�� ���suitable measures without delay.

+�� �� ����� & �� ��� )��$� ����� ��� ��� � ��� ?����`�Swiss gas and water association (Schweizerischer Verein des Gas- und Wasserverbands)):

1. �� ��� �$�� �������� $�� ) ���� � ��� &� � �$�� �� ���valve at the domestic cold water inlet.

2. ������$����������$��) ����� ��� ���!�!���&� ��$��hot water taps in the apartments.

3. +$�����$����������$��) ����� ��� ������ ��&� ��$����� �����!���������$������������9��$��� ���

4. �9������� ����� ��� �������%� ������ �$����������$��) ����� ���

5. ������$����������$��) ����� ��� ���!�!���&� ��$��hot water taps in the apartments.

11.4 +�� �� ���'��$��$���& !� ���and condenser

< +�� �� ���'��$��$���& !� ���������������������according to the manufacturer's regulations.

< �9���� '��$���� �$�� �& !� ������������ )��$�chemical cleaning product: Neutralise any ��������� ��� '��$� �$�� �& !� ������������thoroughly with water.

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23Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

12 Faults

NOTEIf the safety temperature limiter on the electric heating element has tripped, no fault is displayed.

< Read out the cause of the fault via the diagnostics program of the heating and heat pump controller.

< Contact the local partner of the manufacturer or the factory's customer service. Have the fault message and unit number (��J����� �������@� ��page 3) to hand.

12.1 �������$��� 9�������!�� �����limiter

A safety temperature limiter is installed in the electric heating element. If the heat pump fails or there is air in the system:

< +$����)$��$����$�������������?�Q�9��$��� 9����temperature limiter (2) has jumped out (by approx. 2 mm).

< �������$������������� ������ � ���

2

1

< If the safety temperature limiter trips again, contact the local partner of the manufacturer or the factory's customer service.

13 Dismantling and Disposal

13.1 Dismantling � Unit is safely disconnected from the power supply

��� !�������� � ����� ����� �)���$��� ��� ��again.

< Collect all media safely.

< Separate components by their materials.

13.2 Disposal and Recycling < Dispose of media harmful to the environment

according to local regulations, e.g. antifreeze mixture, refrigerant.

< Recycle or ensure proper disposal of unit ��!������ ��� ! �� ����� � ���� ��� ��������to local regulations.

Buffer (standby) battery1. Use a screwdriver to push out the buffer battery

on the processor board of the control unit

2. Dispose of the buffer battery according to local regulations.

Page 24: Operating Manual - Maaküte

24 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Unit designationHeat pump type =������ ��������������� ����������� ����� ��� �� !!��� �������������� !!��� ��

Installation location _���������k���� �� !!��� �������������� !!��� ��

Conformity CE

Performance data �� ������ ! ��������+k��9��=�����%��� �� ������� ��!�� �����!������}������ ��������� 

�� ������ ! ��������+k��9��=�����%��� �� ������� ��!�� �����!������}������ ��������� 

�� ������ ! ��������+k��9��=�����%��� �� ������� ��!�� �����!������}������ ��������� 

�� ������ ! ��������+k��9��="����%�')�� � �������=���� ��������� 

Limits of use �� ��������������������������_���� �������������')�� �� °C

Heat source °C

additional operating points  

Sound Sound pressure level at 1m distance from the edge of the unit dB(A)

Sound power level to EN12102 dB

Heat source ������')`����������$���$!������������ ���$���$!��� � �������=������������ �������$���$!�� l/h

#����$� ��!��!�!��������¡!�?)��$�������¡!¢Q��)��$�����$������������?��£Q������������') ��? �Q��������$

Approved anti-freezeFrostproof up to °C

Maximum operating pressure bar

Heating circuit ������')`����������$���$!������������ ���$���$!��� � �������=������������ �������$���$!�� l/h

#����$� ��!��!�!��������¡!�?)��$�������¡!¢Q�������������') ��? �Q���������$

��������������%�$� ��!��!�¡!�?)��$�������¡!¢Q�������#�)�� �� ��? �Q���������$

Maximum operating pressure bar

General unit data Total weight (with cooling) ���?��Q

=��)���$��?)��$������Q����� ̂)���)���$��?)��$������Q ���?��Q��������?��Q

��9����� �����!��������9����� ���� ! ����  ���������

Domestic hot water tank Net volume l

Impressed current anode integrated:

Domestic hot water temperature in heat pump mode up to °C

Domestic hot water temperature with electric heating element up to °C

Mixed water quantity to ErP (at 40°C, draw-off of 10 l/min) l

Standing loss according to ErP (at 65°C) W

Maximum pressure bar

Electrics Fusing for connection via a joint supply cableVoltage code I all-pole fusing  �����

Fusing for connection via 3 separate supply cables��� ��������� ��{!���$� ��!��!�9������¤Q  �����

��� ���������+�����&�� ���9������¤Q  �����

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Heat pump }99����&��!)��������!���� ���� �� ���!����=��������}������`��)��������!������������+���������!������������¥ ����������������� 

� ������� �$���������������� ������!)��������!����)��$����$���������9���� ����������

�� �������������`��������������)��$��9���� ���� ���������

Degree of protection IP

Electric heating element output ��

Components �� ������������������� ����!��!� ������ ���$���$!��`��)��������!���������+���������!�� ����������

�� �������������� ����!��!� ������ ���$���$!��`��)��������!���������+���������!�� ����������

Passive cooling function #������� !!�����������)��$�����������¢����`�+������ ! ����� ������ ��&�����')��?����+�$� �������%�����+�$� �����) ���Q ��

Safety equipment � 9���� ������%�$� �������������������� 9���� ������%�$� ������� included in scope of supply: • ����������

Heating and heat pump controller included in scope of supply: • ����������

Electronic soft starter ������ ���`�������������

Expansion vessels �� �������`���!��9���!!��������������������_���� ��!������� ��������������������������� �

�� ������������`���!��9���!!��������������������_���� ��!������� ��������������������������� �

����������� ������ ���`�������������

Vibration isolators �� ��������������������� ������� ������ ���`������������

¤Q����� ���9��)��� ������� ����������������§��������� ��

Technical data/Scope of supply WZS 42(H)(K)3M – WZS 122(H)(K)3M

Page 25: Operating Manual - Maaküte

25Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

WZS 102(H)(K)3M�������������������

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Page 26: Operating Manual - Maaküte

26 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Performance curves WZS 42(H)(K)3M

Key: DE823000L/170408

“” Heating water volume flow rate

“" Heat source volume flow rate

Temp„ Heat source temperature

Qh Heating capacity

Pe Power consumption

COP Coefficient of performance

∆p” / ∆p”† Heating circuit free pressure / Heating circuit with cooling free pressure

∆p„ / ∆p„† Heat source free pressure / Heat source with cooling free pressure

823234

2

4

6

8

10

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

ª$�?��Q

35°C

45°C

55°C

65°C

1 2 3 4 5 6 7 8 9

10

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

COP

0

1

2

3

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

���?��Q

0,0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

0,0 0,5 1,0 1,5 2,0 2,5 3,0

“” (m³/h)

∆p” (bar)

0,0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

0,0 0,5 1,0 1,5 2,0 2,5 3,0

“„ (m³/h)

∆p„ (bar)

�p” �pHW/K

�p„ �pWQ/K

Page 27: Operating Manual - Maaküte

27Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

WZS 62(H)(K)3M Performance curves

Key: DE823000L/170408

“” Heating water volume flow rate

“" Heat source volume flow rate

Temp„ Heat source temperature

Qh Heating capacity

Pe Power consumption

COP Coefficient of performance

∆p” / ∆p”† Heating circuit free pressure / Heating circuit with cooling free pressure

∆p„ / ∆p„† Heat source free pressure / Heat source with cooling free pressure

823235

2

4

6

8

10

12

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

ª$�?��Q

35°C

45°C

55°C

65°C

2

3

4

5

6

7

8

9

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

COP

1

2

3

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

���?��Q

0,0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

0,0 0,5 1,0 1,5 2,0 2,5 3,0

“” (m³/h)

∆p” (bar)

0,0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

0,0 0,5 1,0 1,5 2,0 2,5 3,0

“„ (m³/h)

∆p„ (bar)

�p” �pHW/K

�p„ �pWQ/K

Page 28: Operating Manual - Maaküte

28 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Key: DE823000L/170408

“” Heating water volume flow rate

“" Heat source volume flow rate

Temp„ Heat source temperature

Qh Heating capacity

Pe Power consumption

COP Coefficient of performance

∆p” / ∆p”† Heating circuit free pressure / Heating circuit with cooling free pressure

∆p„ / ∆p„† Heat source free pressure / Heat source with cooling free pressure

Performance curves WZS 82(H)(K)3M

823236

4

6

8

10

12

14

16

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

ª$�?��Q

35°C

45°C

55°C

65°C

2 3 4 5 6 7 8 9

10 11

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

COP

1

2

3

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

���?��Q

0,0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

0,0 0,5 1,0 1,5 2,0 2,5 3,0

“” (m³/h)

∆p” (bar)

0,0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0 1,1 1,2 1,3 1,4

0,0 0,5 1,0 1,5 2,0 2,5 3,0 3,5 4,0

“„ (m³/h)

∆p„ (bar)

�p” �pHW/K

�p„ �pWQ/K

Page 29: Operating Manual - Maaküte

29Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Key: DE823000L/170408

“” Heating water volume flow rate

“" Heat source volume flow rate

Temp„ Heat source temperature

Qh Heating capacity

Pe Power consumption

COP Coefficient of performance

∆p” / ∆p”† Heating circuit free pressure / Heating circuit with cooling free pressure

∆p„ / ∆p„† Heat source free pressure / Heat source with cooling free pressure

WZS 102(H)(K)3M Performance curves

823327

6

8

10

12

14

16

18

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

ª$�?��Q

35°C

45°C

55°C

65°C

2 3 4 5 6 7 8 9

10 11 12

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

COP

1

2

3

4

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

���?��Q

0,0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

0,0 0,5 1,0 1,5 2,0 2,5 3,0

“” (m³/h)

∆p” (bar)

0,0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0 1,1 1,2 1,3 1,4

0,0 0,5 1,0 1,5 2,0 2,5 3,0 3,5 4,0 4,5 5,0

“„ (m³/h)

∆p„ (bar)

�p” �pHW/K

�p„ �pWQ/K

Page 30: Operating Manual - Maaküte

30 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

823238

8

10

12

14

16

18

20

22

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

ª$�?��Q

35°C

45°C

55°C

65°C

2

3

4

5

6

7

8

9

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

COP

2

3

4

5

-10 -5 0 5 10 15 20 25 30

Temp„ (°C)

���?��Q

0,0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

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“” (m³/h)

∆p” (bar)

0,0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0 1,1 1,2 1,3 1,4

0,0 0,5 1,0 1,5 2,0 2,5 3,0 3,5 4,0 4,5

“„ (m³/h)

∆p„ (bar)

�p” �pHW/K

�p„ �pWQ/K

Key: DE823000L/170408

“” Heating water volume flow rate

“" Heat source volume flow rate

Temp„ Heat source temperature

Qh Heating capacity

Pe Power consumption

COP Coefficient of performance

∆p” / ∆p”† Heating circuit free pressure / Heating circuit with cooling free pressure

∆p„ / ∆p„† Heat source free pressure / Heat source with cooling free pressure

WZS 122(H)(K)3MPerformance curves

Page 31: Operating Manual - Maaküte

31Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

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Dimensioned drawings

Item Name Dim.1 '�������)������#�����*@�)+ Ø28

Outside diameter

2 '������#����������*��������2#�2�+ optionally at top, on right or left

Ø28 Outside diameter

3 Reserve conduit for electric/sensor cables Ø33 Inside diameter

4 Heating circuit safety valve (in ������2������2��!���+ Rp 3/4" internal thread

5 '������#�����#�����*$���������2#�2+ optionally at top, right or left

Ø28 Outside diameter

6 '�������)�����������*���#��+ Ø28 Outside diameter

7 Domestic hot water R 3/4" external thread

8 Cold domestic water R 3/4" external thread

Key: D819447All dimensions in mm.

A Front view�� ����������� ����C Plan viewA1 Front view of module boxC1 Top view of module box

Page 32: Operating Manual - Maaküte

32 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

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Page 33: Operating Manual - Maaküte

33Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

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Page 34: Operating Manual - Maaküte

34 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

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Page 35: Operating Manual - Maaküte

35Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

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Page 36: Operating Manual - Maaküte

36 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Hydraulic integration, unit variant H (heating)

Page 37: Operating Manual - Maaküte

37Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

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Page 38: Operating Manual - Maaküte

38 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Hydraulic integration, unit variant K (cooling)

Page 39: Operating Manual - Maaküte

39Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

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artn

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40 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

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Page 44: Operating Manual - Maaküte

44 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

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45Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

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Page 46: Operating Manual - Maaküte

46 Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

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Page 47: Operating Manual - Maaküte

47Subject to change without notice | 83056600aUK – Translation into English of the original German operating manual | ait-deutschland GmbH

EC Declaration of Conformity

IIA1

ait-deutschland GmbHIndustrie Str. 393359 KasendorfGermany

EN 60335-1/-2-40

¤*"����}� EN ISO 13857 EN 61000-3-2/-3-32004/108/EG EN ISO 12100-1/2 EN 55014-1/-2

Kasendorf, 12.01.2015

Jesper StannowHead of Heating Development

EC Directives Standardized ENEN 349

2006/95/EG EN 60529

Designated position:TÜV-SÜDIndustrie Service GmbH (Nr.:0036)

2011/65/EG

UK818171

Company: Place, date:

Signature:

Unit model

10066141

Module

2006/42/EG EN 378

* Pressure equipment componentCategory

WZS 42H3MWZS 62H3MWZS 82H3M

EC Declaration of Conformity in accordance with the EC Machinery Directive 2006/42/EC, Annex IIA

Designation of the device(s)

NumberUnit modelNumber

confirms that the following designated device(s) as designed and � ������ by us fulfill thestandardized EC directives, the EC safety standards and the product-specific EC standards.In the event of modification of the device(s) without our approval, this declaration shall becomeinvalid.

The undersigned

Heat Pump

WZS 122K3M

10066041

10066241WZS 102H3MWZS 122H3MWZS 42K3MWZS 62K3MWZS 82K3MWZS 102K3M

1006654110066641

WZS 42H3MWZS 62H3MWZS 82H3MWZS 102H3MWZS 122H3M

1006634210066442

WZS 102K3MWZS 122K3M 1006794210066942

10067041100671411006724110067342

WZS 42K3MWZS 62K3M

1006744210067541100676411006774110067842

WZS 82K3M1006674110066842

Page 48: Operating Manual - Maaküte

ait-deutschland GmbHIndustriestraße 3D-95359 Kasendorf

E [email protected] www.alpha-innotec.de

alpha innotec – an ait-deutschland GmbH brand

UK