alphainnoTec LWV 82R1/3 User manual

UK
83059100fUK – Translation of the original operating manual
Air/water heat pumps
Operating Manual
LWV
•-
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2Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
Table of contents
1 About this operating manual .........................3
1.1 Validity..............................................................3
1.2 Reference documents ...................................3
1.3 Symbols and markings..................................3
1.4 Contact ............................................................4
2 Safety.......................................................................4
2.1 Intended use ...................................................4
 ................................4
2.3 Personal protective equipment ....................4
2.4 Residual risks .................................................4
2.5 Disposal...........................................................5
2.6 Avoid damage to property ............................5
3 Description.............................................................6
3.1 Delivery condition ..........................................6
3.2 Layout ..............................................................6
3.3 Accessories.....................................................7
3.4 Function ...........................................................7
4 Operation and care............................................7
4.1 Energy-conscious and environmentally-
aware operation..............................................7
4.2 Care..................................................................8
5 Delivery, storage, transport and
installation ..............................................................8
5.1 Scope of supply..............................................8
5.2 Storage ............................................................8
5.3 Unpacking and transport ..............................8
5.4 Installation .....................................................10
5.5 Installation of air ducting .............................11
5.6 Attach side walls, rear wall and cover ......11
6 Hydraulic installation ....................................... 11
7 Electrical installation .......................................12
 ..........................13
8.1 Heating water quality...................................13
 ........13
9 Insulate hydraulic connections ...................14
 ....................................14
11 Commissioning..................................................15
12 Maintenance .......................................................15
12.1 Basic principles ............................................15
12.2 Maintenance as required ............................15
 .........................16
12.4 Yearly maintenance .....................................16
13 Faults......................................................................16
14 Dismantling and disposal..............................16
14.1 Dismantling ...................................................16
14.2 Disposal and recycling ................................16
Technical data / Scope of supply..............17
Performance curves........................................18
LWV 82R1/3 ............................................................18
LWV 122R3 .............................................................20
Dimensonal drawings .....................................22
Installation plans ...............................................24
Hydraulic integration........................................32
LWV with hydraulic station....................................32
󰀨
and hydraulic module ..................................33
LWV with separation tank.....................................34
Keys hydraulic integration.....................................35
Circuit diagrams ................................................36
LWV 82R1/3 ............................................................37
LWV 122R3 .............................................................39
EC Declaration of Conformity.....................43

3
Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
1 About this operating manual
This operating manual is part of the unit.
Before working on or with the unit read the
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,
ask the local partner of the manufacturer or the
factory’s customer service.
Note and follow all reference documents.
1.1 Validity

by the nameplate ( “Nameplate”, page 7).
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
(accessories)
Log book
1.3 Symbols and markings

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.
ATTENTION 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
making work easier, information on
standards
Reference to further information
elsewhere in the operating manual
or in another document
Listing

4Subject to change without notice | 83059100fUK – 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 and
are kept up-to-date:
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 hot water preparation (optional, with
accessories)
Cooling, reversible
Proper use includes complying with the operating
conditions ( “Technical data / Scope of supply”,
page 17) 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

        
the work on the unit safety and correctly. Interference
     
injuries and damage to property.
Ensure that the personnel is familiar with the local
regulations, especially those on safe and hazard-
aware working.
 
only to carry out work on the electrics and
electronics.
        
other work on the system, e.g.
Heating installer
Plumbing installer
Refrigeration system installer (maintenance
work)
During the warranty and guarantee period, service
work and repairs may only be carried out by personnel
authorised by the manufacturer.
2.3 Personal protective equipment
There is a risk of cutting your hands on sharp edges
of the unit.
Wear cut-resistant protective gloves during
transport.
2.4 Residual risks
Electric shock
Components in the unit are live with life-threatening
voltage. Before opening the unit panelling:
Disconnect unit from power supply.
Protect unit against being switched back on again.
Residual voltage at the inverter. Wait 90 seconds
before opening the device.
Injury due to moving parts
Switch device on only with air ducts and weather

Injuries and environmental damage due to
refrigerant
The unit contains harmful and environmentally
dangerous refrigerant. If refrigerant leaks from the unit:
1. 󰀨
2. Thoroughly ventilate installation area.
3. Notify authorised after sales service.

5
Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
2.5 Disposal
Media harmful to the environment
Improper disposal of environmentally harmful media
(refrigerant) damages the environment:
Collect media safely.
Dispose of the media in an environmentally
compatible way in accordance with the local
regulations.
2.6 Avoid damage to property
The ambient air at the heat pump installation site, as
well as the air drawn in as a heat source, must not
contain any corrosive constituents!
Constituents such as
Ammonia
Sulphur
Chlorine
Salt
 
can cause damage to the heat pump, which could lead
to the complete failure / destruction of the heat pump!
Decommissioning/emptying heating
If the system / heat pump is decommissioned or

to ensure that the condenser and any heat exchangers
present have been completely emptied in the event
of frost. Residual water in heat exchangers and
condensers can result in damage to components.
Empty system and condenser completely, open
vent valves.
Blast out with compressed air if necessary.
Improper action
Requirements for minimum scale and corrosion
damage in hot water heating systems:
Proper planning, design and commissioning
Closed system with regard to corrosion
Integration of an adequately dimensioned
pressure maintaining device
Use of demineralised heating water (VE water) or
VDI 2035 water
Regular servicing and maintenance
If a system is not planned, designed, started up and
operated in accordance with the given requirements,
there is a risk that the following damage and faults will
occur:
Malfunctions and the failure of components, e.g.
pumps, valves
Internal and external leaks, e.g. from heat
exchangers
Cross-section reduction and blockages in
components, e.g. heat exchanger, pipes, pumps
Material fatigue
Gas bubbles and gas cushion formation
(cavitation)
 󰀨
coatings, deposits, and associated noises, e.g.

Note and follow the information in this operating
manual for all work on and with the unit.

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 exclusively with demineralised
heating water (VE water) or VDI 2035 water.

6Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
3 Description
3.1 Delivery condition
1 Blind cover and louvre grille
2 Side wall (2-piece) and cover
3 Rear wall
4 Side wall (complete)
5 Front wall
6 Supporting crosspiece (left and right;

installation site!)
7 Lashing straps (with grip openings)
8 Wooden strip / fan support
3.2 Layout
NOTE
This section essentially names the
     
described in this operating manual.
The heat pump module
1 Evaporator module
2 Fan module
3 Fan
4 Refrigerant circuit module
The refrigerant circuit module
1 Plug connection to the fan module
2 Electrical switch box
3 Expansion valve (cooling, defrost)
4 Condenser
5 Expansion valve (heating)
6 Compressor (in the insulated housing)
7 Filter dryer
8 Inverter unit

7
Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
Nameplate
The nameplate is attached at the following point on
the unit:
on the rear side
The nameplate contains the following information at
the top:
Unit type, product number
Serial number
The nameplate also contains an overview of the most
important technical data.
3.3 Accessories
The following accessories are available for the unit
through the manufacturer's local partner:
Domestic hot water tank
󰀨
Room thermostat to switch the cooling function
Dew point monitor to protect a system with cooling

Room control panel tr control the main functions
from the living room
3.4 Function
Liquid refrigerant is evaporated (evaporator), the
energy for this process is environmental heat and
comes from the outside air. The gaseous refrigerant
is compressed (compressor), this causes the pressure
to rise and therefore the temperature too. The

(condenser).
The high temperature is hereby discharged to the
heating water and is used in the heating circuit.
The liquid refrigerant at a high pressure and high
temperature is depressurised (expansion valve).
The pressure and temperature drop and the process
begins again.
The heated heating water can be used for the domestic
hot water charging or for the building heating. 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 an electric heating element, which
is activated by the heat pump controller as and when
necessary.
The integrated vibration decouplers for the hydraulics
prevent structure-borne sound and vibrations from
       
into the building.
Cooling
Cooling is integrated in the units. The following
options are possible for units with cooling function
( operating manual of the heating and heat pump
controller):
Active cooling
Cooling in conjunction with hydraulic module or
hydraulic station possible to 18°C. Possible to 7°C
in conjunction with wall-mounted controller.
Cooling below 18 °C is only possible in the case
󰀨
Control of the cooling function via the heating and
heat pump controller
Changeover between heating and cooling
operation
4 Operation and care
NOTE
The unit is operated via the control panel
of the heating and heat pump controller
( operating manual of the heating and
heat pump controller).
4.1 Energy-conscious and
environmentally-aware operation
The generally accepted requirements for an energy-
conscious and environmentally-aware operation of a
heating system also apply when using a heat pump.
The most important measures include:
 
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 (shock ventilation).
Make sure that the controller settings are correct.

8Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
5.2 Storage
Do not unpack the unit until directly before
installation if possible.
Store unit protected against
Moisture/damp
Frost
Dust and dirt
5.3 Unpacking and transport
Notes on safe transport
The unit is heavy ( “Technical data / Scope of
supply”, page 17). There is a risk of injuries or
damage to property if the unit falls or overturns.
There is a risk of cutting your hands on sharp edges
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.
Transport the unit preferably with a pallet truck,
alternatively with a handcart or by carrying
Do not tilt the heat pump module by more than 45°.
The lashing straps on the heat pump module may
only be used when carrying by hand.
Transport with a pallet truck
Transport the unit to the place of installation
packaged and secured on a wooden pallet.
Unpacking
1.        
damage the unit.
2. Dispose of the transport and packaging material
in an environmentally friendly way and in
accordance with local regulations.
3.         
front panel in the place of installation.
󰀨
down.
If the unit is not transported by a pallet truck: do not lift
󰀨
housing panels.
4.2 Care
Wipe down the outside of the unit only using a damp
cloth or cloth with mild cleaning agent (washing-up
liquid, neutral cleaning agent). Do not use any harsh,
abrasive, acid or chlorine-based cleaning agents.
5 Delivery, storage, transport
and installation
ATTENTION
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 kg.
5.1 Scope of supply
Check delivery immediately after receipt for
externally visible damage and completeness.
Notify supplier of any defects immediately.
The accompanying parts package contains
Package 1
 
 
Package 2
1 tube lubricant
1 HT-bend DN 40mm 87°
1 protective cover for plug
4 EPP screws
In façade package
2 screws M5x16, black for the front wall
15 screws for façade mounting M5x9
1 plastic louvre grille
1 heat pump blind cover
Swelling tape for louvre grille and blind cover
Documents (manuals, ERP data and label)
Type sticker

9
Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
The façade front is located in front of the device
The single-part and two-part side wall are located
on the rear side
Optional disconnection of the fan module
NOTE
The fan module can be removed if required
(narrow passages ) .
1. Disconnect the plug-in connection of the load and
bus cable at the top left on the refrigerant circuit
switch box.
2. Remove the 4 screws.
3. Remove the fan module and set it down safely.
4.  󰀨      
crosspieces.
1 Lashing straps with grip openings
2 Styrofoam struts
3 Screws on the fan module
Disconnecting the evaporator module
NOTE
The evaporator module can be disconnected
from the refrigerant circuit module if required.
This work must be carried out by the factory
customer service department!
Please contact our factory customer service
department!
Carrying the unit and transporting with a
handcart
Housing walls are set down.
There are two lashing straps around the heat pump
󰀨
can be used for lifting and carrying.
To provide additional stability, two supporting cross-
pieces are clamped in the side cut-outs for the air
ducts. Do not remove these until transport is complete!
Transporting the heat pump module with a
handcart
1. Only place the heat pump module onto the
handcart with the narrow side, left or right.
2. Secure the heat pump module to the handcart
with lashing straps.
3. Transport the heat pump module to the installation
site.

10 Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
5.4 Installation
CAUTION!
In the air outlet area the air temperature is
approx. 5° K below the ambient temperature.
Under certain climatic conditions, an ice
layer can therefore form in the air outlet
area. Install the heat pump such that the
air blower does not discharge into footpath
areas .
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 according to EN 378-1 relevant
in Germany.
Refrigerant Limit value [kg/m³]
R 134a 0.25
R 404A 0.52
R 407C 0.31
R 410A 0.44
 “Technical data / Scope of supply”, page 17
Minimum room volume = Refrigerant capacity [kg]
Limit value [kg/m³]
NOTE
If several heat pumps of the same type are
installed, only one heat pump need to be
taken into account. If several heat pumps of
󰀨      
pump with the largest refrigerant volume
needs to be taken into account.
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”, from page 24).

unit:
level and horizontal
Load-bearing capacity for the unit's weight
NOTE
The noise emissions of the heat pumps
must be taken into account in the respective
installation plans for air/water heat pumps.
The respective regional regulations must be
observed.
Aligning the unit
1. Align the heat pump module horizontally and
stably at the installation site using the height-
adjustable feet and a size 13 spanner. Adjustment
range: 20 mm. Then fasten with the size 17 lock
nuts.
If the fan module has been removed, this must
be reinstalled on the evaporator module. Attach
the 4 screws (1) and re-establish the two plug-in
connections of the load and bus cables.
2. Remove the two lashing straps.

11
Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
3. Open the strap tensioner and turn the hook on the
base plate through 90°.
4. Attach the swelling tape to the louvre grille and
blind cover by applying it around the edges and
then sticking it in place.
Heat pump installation instructions
5. Remove the two styrofoam crosspieces.
6. Install the blind cover and the louvre grille.
807xxx
Attach the louvre grille to the air outlet side (right
or left)! The blind cover on the opposite side.
7. 
Heat pump installation instructions
5.5 Installation of air ducting
Air discharge to right or left
Left air discharge Right air discharge
Ers. d.
Ers. f.
E
D
C
B
A
4 3 2 1
Air duct installation instructions
Wall duct installation instructions
5.6 Attach side walls, rear wall and
cover
Heat pump installation instructions
1. Fasten rear wall.
2. Hang side walls from above. Fasten at the front
with a screw in the middle. Fasten with 2 screws
at the bottom.
3. Fit cover and screw into place.
6 Hydraulic installation
NOTE
If an existing system is being replaced, the
old vibration decoupling may not be reused.
NOTE

before connection to the heating system.
ATTENTION
Damage to the copper pipes due to unacceptable
loading!
Secure all connections against twisting.
Cross-sections and lengths of the pipes for the
heating circuit are adequately dimensioned.
The free pressing of the recirculating pump
produces at least the minimum throughput

12 Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
required for the unit type ( “Technical data /
Scope of supply”, page 17).
The hydraulic system must be equipped with a
󰀨
on your unit model.
 “Technical data / Scope of supply”, page 17


1 Heating water supply
2 Condensate nozzle
3 Heating water return
1. Insert the vent at the highest point of the heating
circuit.
2. Ensure that the working overpressures
(“Technical data / Scope of supply”, page 17)
are not exceeded.
Condensate connection
The outlet for the heating water safety valve and
        󰀨 
accordance with the respective applicable standards
and regulations. Discharging the condensate and the
safety valve outlet into the sewers is only permitted via
a funnel waste trap, which must be accessible at all
times.
1. Fit an HT-bend onto the condensate outlet.
2. Route piping into the funnel waste trap.
Heat pump installation instructions
7 Electrical installation
7.1 Connect the electrical cables
ATTENTION
Irreparable damage to the compressor due to wrong

 
compressor load infeed.
Basic information on the electrical connection
       
company may apply to electrical connections
Fit the power supply for the heat pump
with an all-pole miniature circuit-breaker
with at least 3 mm contact spacing (per
IEC 60947-2)
Note the level of the tripping current
( “Technical data / Scope of supply”,
page 17)
Comply with the electromagnetic compatibility
regulations (EMC regulations)
Lay unshielded power supply cables and
    󰀩  
(> 100 mm).

13
Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
Connect the heat pump module with hydraulic
module, hydraulic station or wall-mounted
controller
The connection is established using the EVS 8 or EVS
accessory.
EVS 8 load and bus connector with 8 m cable.
A maximum of 3 EVS 8 connections are possible.
EVS 8 installation instructions
EVS: Load and bus connector.
Cable on site, maximum cable length of 30 m.
The bus cable must be a shielded cable of at least
4 x 0.5 mm².
As load line:
For the 12 kW unit a 5 x 2.5 mm² cable with
protective conductor
For the 8 kW unit a 3 x 2.5 mm² cable with pro-
tective conductor
EVS installation instructions
1. Route the two plug-in connections of the load and
bus cable to the plug-in points on the heat pump
module.
2. Couple the connectors together.
3. Fit cover for plug-in connections-
8 
8.1 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) or with water corresponding to VDI
2035 only (low-salt operation of the system).
Advantages of low-salt operation:
Low corrosion-promoting properties
No formation of mineral scale
Ideal for closed heating circuits
 
the system
If necessary, simple alkalisation to pH value 8.2
by adding chemicals
8.2 
circuit
Outlet pipe of the safety valve is connected.
Ensure that the set pressure of the safety valve is
not exceeded.
NOTE
The venting program on the controller can
       
venting process. It is possible to control
individual recirculating pumps and even the
switching valve through the venting program.
The valve motor then does not have to be
removed.
1. 󰀨
2. 󰀨-
ing valve.
3. Vent system at the respective highest point.
4. Vent heat pump.

14 Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
9 Insulate hydraulic connections
Insulate hydraulic lines in accordance with local
regulations.
1. 󰀨
2. Perform a pressure test and check for leaks.
3. Insulate external piping on site.
4. 
5. If the device is used for cooling below 18°C
(only possible in combination with the wall-
mounted controller), the insulation must be vapour
󰀨
10 
NOTE
The activities in this section are only
necessary for the integration of storage
tanks in series
Complete the work steps quickly, otherwise
the maximum return temperature may be
exceeded and the heat pump switches to
high-pressure fault
       
valve to the right to increase the
 󰀨  
drop), turn it to the left to reduce it
System is running in heating mode (ideally in cold
condition).
The IBN assistant already provides the option, in the
event of the integration of the storage tank in series to
-
lic system.

The “Set bypass valve” menu item is set by default to
-
tivated.
The UWP control signal is the indication of the
currently required pump capacity in %
 
accuracy +/- 200 l/h)
1.        
circuits
2. If the “Set bypass valve” menu item is set from
“No” to “Yes”, the circulation pump is activated
with 100% – and the pump starts up.
3. If the control signal UWP reaches 100%, close

  “Technical data / Scope of supply”,
page 17) can be ensured.
1 Rotary-push button
 
4. If you exit the “Set bypass valve” menu or at the
latest after one hour, the circulation pump switch-
es back to standard regulation
5. Open valves to heating circuit.

15
Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
11 Commissioning
Relevant planning & design data of the system is
documented in full.
The relevant energy supply company has been

The system is air-free.
Installation check using the general checklist has
been completed successfully.
1. -
pletely:
 
available at the compressor
The system is installed and mounted according to
this operating manual
The electrical installation has been carried out
properly according to this operating manual and
the local regulations
The power supply for the heat pump is equipped
with an all-pole circuit-breaker with at least 3 mm
contact spacing (IEC 60947-2)
The tripping current is complied with
 
 󰀨
The pipe systems and components of the system
are tight
2. 
for the heat pump systems.
3. In Germany: Send notice of completion for heat
pump systems and general checklist to the man-
ufacturer’s factory customer service depart-
ment.
In other countries: Send notice of completion for
heat pump systems and general checklist to the
manufacturer’s local partner.
4. Arrange for the heat pump system to be com-
missioned by the manufacturer’s authorised after
sales service for a fee.
12 Maintenance
NOTE
We recommend that you conclude a
maintenance agreement with an accredited
heating company.
12.1 Basic principles
The cooling circuit of the heat pump requires no
regular maintenance.
Local regulations– e.g. EU Regulation (EC) 517/2014
– among other things, require leak checks beforehand
and/or for a logbook to be kept for certain heat pumps.
Ensure compliance with local regulations with

12.2 Maintenance as required
Checking and cleaning the components of the
heating circuit, e.g. valves, expansion vessels,

Test the function of the safety valve for the heating
circuit
Always regularly control for unimpeded air in-
feed accordingly. Constrictions or even blockages
which, for example occur
when applying house insulation with polysty-
rene balls
     -
tons etc.)
through foliage, snow, icing or similar weath-
er-related deposits
through vegetation (bushes, tall grass etc.)
 
etc.)
and which must be prevented and/or removed im-
mediately
Check regularly to ensure that the condensate
can drain out of the unit freely, without obstruction.
To this end, check the condensate pan in the unit
and the evaporator regularly for dirt / blockages
and clean as necessary

16 Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
Check evaporator and condensate pan
and clean if required
1. Remove the front panel and the cover, thus gain-
ing access to the cleaning opening (1).
2. After the cover is removed (1), the entire conden-
sate pan area before (2) and after (3) the evapora-
tor is visible and can be cleaned if necessary.
Heat source
inlet sensor
As an alternative, the lateral air ducts, the side walls,
the louvre grilles and blind covers can be removed (if
necessery also the fan module) , to obtain better ac-
cess.
 “Optional disconnection of the fan module“,
page 9
12.3 
 
the manufacturer's instructions.
      
cleaning product: neutralise any residues and

12.4 Yearly maintenance
Record the quality of the heating water analytically.

suitable measures without delay.
13 Faults
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 to hand.
 “Nameplate“, page 7
14 Dismantling and disposal
14.1 Dismantling
Unit is safely disconnected from the power supply
and secured against being switched back on
again.
Collect all media safely.
Separate components by their materials.
14.2 Disposal and recycling
Dispose of environmentally hazardous media in
accordance with local regulations (e.g. refrigerant,
compressor oil).
Recycle or ensure proper disposal of unit
components and packaging materials in
accordance with local regulations.

17
Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
Performance data Values in brackets: (1 Compressor) LWV 82R1/3 LWV 122R3
Heating capacity | COP for A10/W35 acc. to EN14511 Partial load operation kW | COP
3,18 ı 5,25 5,50 ı 5,10
for A7/W35 acc. to EN14511 Partial load operation kW | COP 2,81 ı 5,03 5,29 ı 4,71
for A7/W55 acc. to EN14511 Partial load operation kW | COP 3,28 ı 2,85 9,36 ı 2,65
for A2/W35 acc. to EN14511 Partial load operation kW | COP 3,82 ı 4,19 5,00 ı 4,01
for A-7/W35 acc. to EN14511 Full load operation kW | COP 6,40 ı 3,17 8,50 ı 2,63
for A-7/W55 acc. to EN 14511 Full load operation kW | COP
4,93 ı 2,20 8,46 ı 2,05
Heating capacity for A10/W35 min. I max. kW | kW 2,90 ı 7,00 5,40 ı 11,0
for A7/W35 min. I max. kW | kW 2,80 ı 6,60 5,40 ı 11,0
for A7/W55 min. I max. kW | kW 2,50 ı 6,40 4,50 ı 11,0
for A2/W35 min. I max. kW | kW 2,60 ı 6,40 4,60 ı 10,3
for A-7/W35 min. I max. kW | kW 2,30 ı 6,50 3,60 ı 8,50
for A-7/W55 min. I max. kW | kW 1,80 ı 4,95 2,80 ı 8,50
Cooling capacity | EER for A35/W18 Partial load operation kW | EER 6,00 ı 3,00 8,50 ı 2,80
for A35/W7 Partial load operation kW | EER 3,60 ı 1,80 5,00 ı 1,80
Cooling capacity for A35/W18 min. I max. kW | kW 1,00 ı 6,00 2,00 ı 8,50
for A35/W7 min. I max. kW | kW 1,00 ı 4,50 2,00 ı 6,00
Operating limits
Heating circuit return min. | Heating circuit flow max. Heating within heat source min./max. °C 20 ı 45 20 ı 45
Heat source, heating min. I max. °C -22 ı 35 -22 ı 35
Additional operating points …
A-5 / W60 A-5 / W60
Sound
Sound power level inside min. | Night | max. dB(A) 43 ı 53 ı 54 43 ı 53 ı 54
Sound power level outside 1) min. | Night | max. dB(A) 34 ı 38 ı 44 30 ı 43 ı 49
Sound power level acc. to EN12102 inside | outside dB(A) 48 ı 44 47 ı 49
Tonality | Low-frequency dB(A) | • yes – no — ı — — ı —
Heat source
Air flow rate at maximum external pressing | Maximum external pressure m³/h | Pa 2500 ı 25 2900 ı 25
Heating circuit
Flow rate (pipe dimensioning) I Min. volume buffer tank in series I Min. volume separation buffer tank l/h | l | l 1200 ı 60 ı 100 1900 ı 100 ı 200
Free pressing | Pressure loss | Flow rate bar | bar | l/h — ı 0,14 ı 1200 — ı 0,2 ı 1900
Max. allowable operating pressure bar 3 3
Circulation pump control range min. I max. l/h — ı — — ı —
General unit data
Total weight kg 138,00 154,00
Weight of heat pump module | Compact module | Fan module kg | kg | kg 88 ı — ı 16 104 ı — ı 16
Refrigerant type | Refrigerant capacity … | kg R410A ı 3,00 R410A ı 3,60
Electrics
Voltage code | all-pole fuse protection for heat pump *)**) … | A 1~N/PE/230V/50Hz ı B16 3~N/PE/400V/50Hz ı B16
Voltage code | Control voltage fuse protection **) … | A 1~N/PE/230V/50Hz ı B10 1~N/PE/230V/50Hz ı B10
Voltage code | Electric heating element fuse protection **) … | A — —
WP*): effect. Power consumption A7/W35 (partial load operation) EN14511 I Electric consumption I cosφ
kW | A
0,559 ı 1,09 ı 0,83 1,12 ı 2,40 ı 0,83
WP*): effective power consumption A7/W35 acc. to EN14511: min. I max. kW | kW 0,5 ı — 1,12 ı —
WP*): Max. machine current I Max. power consumption within the operating limits A | kW 16 ı 3,5 13 ı 6,0
Starting current: direct | with soft starter A | A < 5 ı — < 5 ı —
Degree of protection IP 20 20
Residual current circuit breaker if required type B B
Electric heating element output 3 | 2 | 1 phase kW | kW | kW — ı — ı — — ı — ı —
Circulation pump power consumption, heating circuit min. I max. W — —
Other unit information
Safety valve heating circuit | Response pressure included in scope of supply: • yes – no | bar — ı — — ı —
Buffer tank | Volume included in scope of supply: • yes – no | l — ı — —
Heating circuit expansion vessel | Volume | Prepressure incl. in scope of supply: • yes – no | l | bar — ı — — ı —
Overflow valve | Changeover valve heating - domestic hot water integrated: • yes – no —— ı —
Heating circuit vibration decoupling incl. in scope of supply or integrated: • yes – no • •
Controller I Heat quantity recording I Extension board incl. in scope of supply or integrated: • yes – no — ı • ı — — ı • ı —
813577d 813578b
*) compressor only, **) note local regulations 1) Indoor and outdoor installation.
For indoor installation: Intake 1.5m air duct, Blow-out 1.5m air duct + air duct bend (original accessories)
Technical data / Scope of supply LWV

18 Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
LWV 82R1/3Performance curves / operating limits / heating
Keys:
“” Heating water volume ow rate
Temp „Heat source temperature
Temp ”Heat water temperature
∆pmax max. free pressing
Qh min/max min./max. heating power
Pel min/max min./max. power consumption
823290b
0
1
2
3
4
5
6
7
8
9
10
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35
Temp„ [°C]
Qh min/max [kW]
35°C 55°C
0,00
0,05
0,10
0,15
0,20
0,25
0,30
00,5 11,5 22,5 3
“ ” [m³/h]
∆pmax [bar]
15
20
25
30
35
40
45
50
55
60
65
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40
Temp” [C°]
Temp„ [°C]
0
1
2
3
4
5
6
7
8
9
10
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35
Temp„ [°C]
Pel min/max [kW]
35°C
55°C

19
Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
LWV 82R1/3Performance curves / cooling
Keys:
“KW Volumetric ow, cooling water
Temp
WS Heat sink temperature
Temp
KW Cooling water temperature
∆pmax max. free pressing
Q0 min/max min./max. cooling capacity
Pel min/max min./max. power consumption
823290b
0
1
2
3
4
5
6
7
8
9
10
10 15 20 25 30 35 40 45
TempWS [°C]
Q0 min/max [kW]
7°C
18°C
0,00
0,05
0,10
0,15
0,20
0,25
0,30
00,5 11,5 22,5 3
“ KW[m³/h]
∆pmax [bar]
5
10
15
20
25
30
35
40
5 10 15 20 25 30 35 40 45
TempKW [C°]
TempWS[°C]
0
1
2
3
4
5
6
7
8
9
10
10 15 20 25 30 35 40 45
TempWS [°C]
Pel min/max [kW]
7°C
18°C

20 Subject to change without notice | 83059100fUK – Translation of the original operating manual | ait-deutschland GmbH
LWV 122R3Performance curves / operating limits / heating
Keys:
“” Heating water volume ow rate
Temp „Heat source temperature
Temp ”Heat water temperature
∆pmax max. free pressing
Qh min/max min./max. heating power
Pel min/max min./max. power consumption
823291b
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35
Temp„ [°C]
Qh min/max [kW]
35°C 55°C
0,00
0,05
0,10
0,15
0,20
0,25
0,30
00,5 11,5 22,5 3
“ ” [m³/h]
∆pmax [bar]
15
20
25
30
35
40
45
50
55
60
65
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40
Temp” [C°]
Temp„ [°C]
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35
Temp„ [°C]
Pel min/max [kW]
35°C
55°C