Alpha innotec PWZSV Owner's manual

Brand: Alpha innotec

Model: PWZSV

Category: Heat pumps

Type: Owner's manual

83056500pUK – Translation of the original operating manual

Brine/Water Heat Pumps

Brine heat station

Operating Manual

PWZS(V) H1 series

PWZS(V) H3 series

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

Contents

1 About this operating manual ...................... 3

1.1 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 .................................................... 5

2.6 Avoid damage to property ......................... 5

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

3.1 Layout ....................................................... 6

3.2 Accessories............................................... 7

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

4 Operation and care ....................................... 8

4.1 Energy and environmentally aware

operation ................................................... 8

4.2 Maintenance.............................................. 8

5 Delivery, storage, transport and

installation ....................................................... 9

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

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

  ........................... 9

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

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

6.1 Removing the module box .......................11

6.2 Install the module box ............................. 14

6.3 Installing the hydraulic connections ........ 14

6.4 Connect the electrical cables .................. 15

6.5 Installing the control unit ......................... 19

  ...................... 20

7.1 Remove the front panel of

the module box ........................................ 20

  ............... 20

7.3 Vent the circulation pump of the heat

source ..................................................... 21

  ............... 22

  ........................... 23

 

 .................... 23

9 Insulate hydraulic connections ................ 23

  ................................ 24

10.1 For PWZS units ....................................... 24

10.2 For PWZSV units .................................... 24

11 Commissioning ............................................ 25

12 Maintenance ................................................. 26

12.1 Basic principles ....................................... 26

12.2 Maintenance as required ........................ 26

 

condenser ............................................... 26

12.4 Yearly maintenance ................................. 26

13 Faults .............................................................. 26

  ..... 26

  . 27

14 Dismantling and disposal .......................... 27

14.1 Dismantling ............................................. 27

14.2 Disposal and recycling ............................ 27

  .................. 27

Technical data / Scope of supply.................... 28

PWZS 42H3S ................................................... 28

PWZS 82H3S – PWZS 102H3S ...................... 29

PWZS 122H3S ................................................. 30

PWZSV 62H1S – PWZSV 92H1S .................... 31

PWZSV 122H1S ............................................... 32

PWZSV 62H3S – PWZSV 92H3S.................... 33

PWZSV 122H3S – PWZSV 162H3S ................ 34

Performance curves .......................................... 35

PWZS 42H3S ................................................... 35

PWZS 82H3S ................................................... 36

PWZS 102H3S ................................................. 37

PWZS 122H3S ................................................. 38

PWZSV 62H1S /PWZSV 62H3S ...................... 39

PWZSV 92H1S ................................................. 40

PWZSV 122H1S ............................................... 41

PWZSV 92H3S ................................................ 42

PWZSV 122H3S ............................................... 43

PWZSV 162H3S ............................................... 44

Dimensional drawings ....................................... 45

Dimensional drawings ...................................... 45

 ............................. 46

Installation plans ................................................. 47

Hydraulic integration .......................................... 49

Default .............................................................. 49

 ......................................... 50

Legend Hydraulic integration ........................... 51

Terminal diagrams ............................................. 52

PWZS 42H3S – PWZS 122H3S /

PWZSV 122H3S / PWZSV 162H3S ........ 52

PWZSV 62H3S / PWZSV 92H3S..................... 53

PWZSV 62H1S – PWZSV 122H1S .................. 54

Circuit diagrams .................................................. 55

PWZS 42H3S – PWZS 82H3S ........................ 55

PWZS 102H3S – PWZS 122H3S .................... 58

PWZSV 62H3S / PWZSV 92H3S..................... 61

PWZSV 62H1S – PWZSV 122H1S .................. 64

PWZSV 122H3S ............................................... 67

PWZSV 162H3S ............................................... 70

EC Declaration of Conformity ......................... 75

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

1 About this operating manual

This operating manual is part of the unit.

         

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,

        

factory's customer service.

 Note and follow all reference documents.

1.1 Validity

This operating manual refers solely to the unit

 “Rating



1.2 Reference documents

The following documents contain additional information

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



        

manufacturer



      

contact with the manufacturer or the local partner of

the manufacturer.

   



1.3 





Symbol Meaning

Safety-relevant information.

Warning 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

moderate or minor injuries.

IMPORTANT Indicates a potentially dangerous

situation, which can result in

property damage.

Symbols in the document

Symbol Meaning



Information for the owner/operator



Requirement for action



Single step action prompt

1., 2., 3., … Numbered step within a multi-step

action prompt. Keep to the given

order.

Additional information, e.g. a tip on

  

standards



Reference to further information

elsewhere in the operating manual

or in another document

 Listing

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

1.4 Contact

Addresses 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.com

2 Safety

Only 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 use

The unit is solely intended for the following functions:

 Heating

 Domestic water heating

 

 Proper use includes complying with the operating

  “Technical data / Scope of supply”,

      

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 

The operating manuals supplied with the product are

intended for all users of the product.

The operation of the product via the heating and he-

-

tended for end customers / operators is suitable for all

age groups of persons who are able to understand the

activities and the resulting consequences and can car-

ry out the necessary activities.

Children and adults who are not experienced in hand-

ling the product and do not understand the necessa-

ry activities and the resulting consequences must be

instructed and, if necessary, supervised by persons

experienced in handling the product and who are re-

sponsible for safety.

Children must not play with the product.



All instructional information in this operating manual is



        



     

injuries and damage to property.

 Ensure that the personnel is familiar with the local

regulations, especially those on safe and hazard-



      

        

electronics.

        



 Heating installer

 Plumbing installer

    



During the warranty and guarantee period, service



authorised by the manufacturer.

2.3 Personal protective equipment

 

of 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.

 

 For PWZSV units: Residual voltage at the inverter.

Wait for 90 seconds before opening the unit.

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

Existing earthing connections within housings or on

mounting plates must not be altered. If this should ne-

vertheless be necessary in the course of repair or as-



 Restore earthing connections to their original con-





explosive atmospheres

Constituents of antifreeze mixtures, e.g. ethanol,



atmosphere:

 mix antifreeze in well-ventilated rooms.

      

comply with the relevant safety regulations.

Injuries and environmental damage due to

refrigerant

The unit contains harmful and environmentally



1. 

2. Thoroughly ventilate installation room.

3. Notify authorised customer service.

2.5 Disposal

Batteries

       

environment.

 

compatible way according to the local regulations.

Media harmful to the environment

Improper disposal of environmentally harmful media



 Collect media safely.

 Dispose of the media in an environmentally com-

patible way according to the local regulations.

2.6 Avoid damage to property

Decommissioning/draining the heating

If the system/heat pump is decommissioned or drained

        

the condenser and any heat exchangers have been

drained completely for the event of freezing temper-

atures. Residual water in heat exchangers and con-

densers can result in damage to the components.

 Completely drain the system and the condenser,

and open vent valves.

 Blow them clear with compressed air, if required.

Improper action

Requirements for minimum scale and corrosion

damage in hot water heating systems:

 Proper planning, design and start-up

 Closed system with regard to corrosion

 Integration of adequately dimensioned pressure

retention

 with

water corresponding to VDI 2035 only

 Regular servicing and maintenance

If a system is not planned, designed, started up and

operated according to the given requirements, there is



 Malfunctions and the failure of components, e.g.

pumps, valves

       

exchangers

     

components, e.g. heat exchanger, pipes, pumps

 Material fatigue

 Gas bubbles and gas cushion formation



 

coatings, deposits, and associated noises, e.g.



 Note and follow the information in this operating



Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH



water in the heating circuit

          

generator and the heating components depend

decisively on the quality of the heating water.

        

calcium precipitates as scale. Limescale deposits

form on the heat transfer surfaces of the heating. The

       

cases the heat exchangers are damaged.

 Fill the system with deionised heating water

       



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

PWZS units

 -

-

mitted

 For operation of the heat source with water or

water-antifreeze mixture, ensure that the water



water side.

 

PWZSV units

 Use of pure water in the heat source is not permit-

ted

 For operation of the heat source with a water-

antifreeze mixture, ensure that the water used

      

water side.

 

3 Description

3.1 Layout

NOTE

This section essentially names the

     

described in this operating manual.

Heat station

 

 

3 3-way changeover valve for heating circuit/hot

water

4 Electrical switch cabinet

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

 

 

7 Module box

8 Heating circuit/hot water circulation pump

9 Electric heating element

10 Manual power regulation electric heating



Rating plate

Rating plates are attached to the following places on

the unit:

 at the top of the heating station

 left-hand side, 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.

Module box

1 Carrying straps

2 Heat source inlet

3 Heat source outlet

4 Heating return

5 Vibration isolator

6 Evaporator

7 Heat source circulation pump

 

 

10 Compressor

11 Condenser

12 Heating feed

NOTE

The hose connectors are not part of the

scope of delivery with all KFE ball valves.

Control unit



 

 

3 cover

Connections

The connections are located on the underside of the

control unit:

1 Connection room control unit



 

3 Connection LIN bus to the regulator board

4 RJ45 connection not assigned

3.2 Accessories

The following accessories are available for the unit

through the manufacturer’s local partner:

 

a cooling function

 Room thermostat for switching the cooling



 Dew point monitor for protecting a system with



 Expansion board

 impressed current anode

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

3.3 Function

     

energy for this process is environmental heat and

      

borehole heat exchanger or groundwater via

     

     

to rise and therefore the temperature too. The





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

      

temperature drop and the process begins again.

Due to the integrated changeover valve and the

     

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

       

into the building.

Cooling

        

     

       operating



 

 Control of the cooling function via the heating and

heat pump controller

 Automatic switching between heating and cooling

mode



The control can be connected to a computer or

        

pump controller can then be controlled from the



4 Operation and care

NOTE

The unit is operated via the control of

the heating and heat pump controller

 operating manual of the heating and heat



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 domestic hot water



 Do not open windows with gap /tilt open





4.2 Maintenance

Wipe down the outside of the unit only using a damp

    



abrasive, acid or chlorine-based cleaning products.

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

5 Delivery, storage, transport

and installation

IMPORTANT

Damage to the housing and the unit components

due to heavy objects.

 Do not place any objects on the unit which are

heavier than 30 

5.1 Scope of supply

NOTE

On delivery the accessories are enclosed in



      

outwardly visible damage and completeness.

 Notify supplier of any defects immediately.



 

3 of this manual

 Control unit, consisting of:



For wall-mounting: 3 screws and 3 wall plugs

For mounting on the unit: 4 screws, 2 cable ties,

strain relief

 Safety valve, outdoor sensor

  Clamping ring installation

only allowed with copper pipe

 Spare parts after removal of module box:

 

 

 

 

5.2 Storage

        

directly before installation.

 Store unit protected against:

 Moisture/damp

 Frost

 Dust and dirt

5.3 

NOTE

The module box can be removed for transport

 

Notes on safe transport

The heating station and the module box are

  “Technical data / Scope of supply“, from

page 28         

property if the housing with the unit components 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.

 

of 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°.

       

alternatively with a handcart.



 Transport the unit to the place of installation



Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH



NOTE



  

and dismantling the housing panels.

1.        

damage the unit.

2.       



way according to local regulations.

3.         

front panel in the place of installation.

Dismantle housing panels for transport with

handcart or carrying the unit

  

To avoid damage to the housing panels:

1. Undo 2 screws at the bottom of the front panel.

Lift up the front panel and put it down in safe

place.

2. Undo 3 screws at the right panel.

Lift up the side panel and put it down in safe place.

3. Undo 3 screws at the left panel.

Lift up the side panel and put it down in safe place.

Transport with a handcart

NOTE

 If transporting with a handcart the module

box must be pushed in.

      

shows transporting the unit on its left-hand

side; it can also be transported on its right-

hand side.

 Housing panels are dismantled.

To avoid damage: On a handcart, load the unit on its

side only.

807270

Transport unit on the handcart.

Carrying the unit

 Housing panels are dismantled.

1.  “Removing the module

        

to the place of installation.

2. Carry the housing with the unit components

separately to the place of installation.

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

5.4 Installation

Installation room and space requirements

NOTE

Note and follow the local regulations and

standards regarding the installation room

and space requirements. The table shows

the regulations as per EN 378-1 relevant in

Germany.

Refrigerant Limit [kg/m³]

R 134a 0.25

R 404A 0.52

R 407C 0.31

R 410A 0.44

R 448A 0.39

 “Technical data / scope of supply” , “General unit

data.

Minimum room volume =





NOTE

If several heat pumps of the same type are

installed only one heat pump need to be

  

      

pump with the largest refrigerant volume



 Minimum volume corresponds to the require-

ments for the refrigerant used.

 Installation inside the building only.

 Installation room is dry and frost-free.

 Clearance dimensions are met

 “Installation plans“, from page 47

 

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 mm.

6 Installation and connection

6.1 Removing the module box

IMPORTANT

If 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°.

The module box contains the whole cooling circuit of

the heat station.



and transport easier.

1. Remove the front panel by undoing the two

screws at the bottom and pulling out the front pan-

el from the top. Put down safely.

IMPORTANT

Only if the heat pump is already connected



Drain the module box.



Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

2. 

For 400V units:

pull the connector apart.

For 230V units:

        

The large white plug is at the bottom and must be



Otherwise the same as for 400 V units.

3. Remove the insulation on the rear pipes on the

        

cutting through the cable ties and removing the in-

sulation hoses.

4. Disconnect the hydraulics.

Undo the clips.

1 Clips

5.        -

ible pipes downwards as far as possible so that

the connection is unplugged.

The heating feed at the front left-hand side must

be unscrewed.

Lift the nut when removing the module box so that

the pipes are not damaged.

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

6. Undo the two screws at the side.

7. Pull the heat pump heating connections at an an-



8. Grip the module box at the bottom and pull it out

from the front until the looped straps are accessible.

9. (③)

more easily: place boards (④) under it, e.g. from



10. Lift and hold nut (①)

11. Slowly and carefully pull out the module box by

the carrying lugs (②).

IMPORTANT

Ensure that none of the pipes are damaged.

12. Pull out the module box completely and place it

on the boards.

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

6.3 Installing the hydraulic

connections

IMPORTANT

The heat source system must be installed

in accordance with the planning manual

requirements.

 Planning manual / Hydraulic integration



For details of the heat source and heating side con-

nections, see

“Dimensional drawings“, page 45,

and “Installation plans“, from page 47

NOTE

The heat source can be connected from the

top, right or left.

If the heat source will be connected at the side, the

cables can be cut to a residual length of at least

250 mm from the edge of the device

 “Dimensional drawings“, page 45

IMPORTANT

Damage to the copper pipes due to unacceptable

loading!

 Secure all connections against twisting.

 The heat source system has been installed in

 planning &

design manual, dimensioned diagrams,



 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

      “Technical data /

Scope of supply“, from page 28

 The cables for the heat source and the heating



6.2 Install the module box

Install the module box in the reverse order.

 When re-installing the box, replace the O-rings

of the heat pump connections with the O-rings

supplied:

 



 The pipes must be insulated again: use the in-

sulation hoses supplied.

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

6.4 Connect the electrical cables

IMPORTANT

Irreparable damage to the compressor due to



  

the compressor load infeed.

Basic information on the electrical connection

NOTE

Ensure that the unit is supplied with electricity



attaching the unit panelling, switch the power



       

company may apply to electrical connections

 Fit the power supply for the heat pump

    

      



 Note the level of the tripping current

 “Technical data / Scope of supply“, from

page 28

 Comply with the electromagnetic compatibility



 Lay unshielded power supply cables and shielded



 Maximum line length: 30 m.

The LIN-bus cable must be a shielded cable of at

least 4 x 0.5 mm²



valves

IMPORTANT



force!

1. -

tion.

2. 



3. Push the pipe through the clamping ring up to the



4. Tighten the union nut hand-tight and attach wa-



5. 

6. 



1. 

2. Tighten the union nut hand-tight and retighten



the clamping ring is already in a clamping posi-

tion.

Connect the unit to the heat source, domestic

water pipes and heating circuit

1.      

heat source and 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“, from

page 28     

reducer if necessary.

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

Terminal reconnection process

1 x cable / 3 x cables

1. Pull out the pre-installed load cable from the front

and at the same time, pull in 3x load cables from

above

2. Ensure appropriate fuses depending on the con-

nection

3.       



X10

1 Electric heating element controller

 

X9 Connection terminal

2 Manual power regulation electric heating



3 Electric heating element



the connections

1. Strip the sheathing of all cables to the external

loads 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

 

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

NOTE



4. Route cables from underneath through the cable

openings in the control box.

5. Connect cables to the respective terminals

 “Terminal diagrams“, from page 52, and

“Circuit diagrams“, from page 55

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

PWZS...H3S, PWZSV 122H3S,

PWZSV 162H3S

1 Supply cable

external wiring internal wiring

L1 L1

1L1

L2 L2

1L2

L3 L3

1L3

N 1N1

1N2

1N3

PE PE

X10

3 Supply cables

external wiring internal wiring

PE control PE

L1 compressor L1

L1 heating element 1L1

L control L

L2 compressor L2

L2 heating element 1L2

L3 compressor L3

L3 heating element 1L3

N Heating element 1N1

1N2

1N3

N control N

PE compressor PE

PE heating element PE

X10

PWZSV 62H3S

1 Supply cable

external wiring internal wiring

L1 1L1

L2 1L2

L3 1L3

1N1

1N2

1N3

N N

PE PE

X10

3 Supply cables

external wiring internal wiring

PE control PE

L1 heating element 1L1

L control L

L2 compressor L2

L2 heating element 1L2

L3 heating element 1L3

N compressor 1N

1N1

1N2

1N3

N control N

PE compressor PE

PE heating element PE

X10

= Jumper

4.      

close the switching box inside the unit.

5. Close the front panel of the unit, provided no fur-





Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

Electric heating element control

NOTE



Heat pump fuses

The fuses below apply to the as-delivered condition only. If additional loads are connected to the controller the max-

imum fuse must always be used.

The heating element control setting is made in the controller, under System Settings.

3~400V

WP capacity Compressor current C10 C16 C20 C25

 4.8

3500 W 7500 W 9000 W 9000 W

 5

3500 W 7500 W 9000 W 9000 W

 6

3000 W 7000 W 8000 W 9000 W

 12

X 3000 W 4500 W 7500 W

 7.6

2500 W 6000 W 7500 W 9000 W

 9.5

X 6000 W 6500 W 9000 W

 12

X 3000 W 4500 W 7500 W

 9

X 5000 W 6500 W 9000 W

 10

X 4500 W 6000 W 8500 W

1~230V: only heating element

B20 current B25 current B32 current B40 current B50 current

3500

17.75 A 4500

22.83

6000

30.43

7500

3804.00

9000

45.65

Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

IMPORTANT

      

only vertically on a wall!

2.  



 “Wall-mounting“, page 46

3. 

4. The LIN bus cable is routed from the top right-

hand side at the rear from the heat pump and is

plugged into the control part at the bottom.

 “Connections“, page 7

Mounting on the unit

1. Remove the front panel.

IMPORTANT

The front panel must be removed to avoid

damage in the unit!

2.          

through the metal sheet.

 “Mounting on the unit“, page 46

6.5 Installing the control unit

If the heat pump is ready for use, the control unit must be

(①) or onto the front of the units (②).

         

the control unit so that it can be pushed onto the wall-



Wall-mounting

1.         



When routing cables from underneath, you must

        



Subject to change without notice | 83056500pUK – Translation of the original operating manual | ait-deutschland GmbH

7 

7.1 Remove the front panel of

the module box

 Unscrew the front panel of the module box.

7. 2 

Frost protection must be provided in the heat source.

Below are the approved antifreeze agents based on:

 Monopropylene glycol

 Monoethylene glycol

 Ethanol

 Methanol

Antifreeze agents based on salt are not permitted.

 When selecting the antifreeze agent, it must be

ensured that it is compatible with the following

materials:

 

 

 

 

 

 

 

 

3. Drill the hole for the cable penetration and insert



4.     



5. 

6. 

    



7.         

front panel can still be leant against the right or

left hand side.

The LINBus cable must be around 10 cm shorter

than the other cables:

8. 





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Alpha innotec PWZSV Owner's manual

Brand: Alpha innotec

Model: PWZSV

Category: Heat pumps

Type: Owner's manual

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Alpha innotec PWZSV Owner's manual

Alpha innotec PWZSV Owner's manual

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