AIT WR 2.1 User manual
UK
83058800fUK
Accessories for
Air / Water Heat Pumps
Outdoor installation
Operating Manual
Wall-mounted controller WR 2.1
2Subject to technical amendments without prior notice | 83058800fUK | 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
2.2 Personnelqualications................................4
2.3 Personal protective equipment ....................4
2.4 Residual risks .................................................5
3 Operation and maintenance..........................5
3.1 Energy and environmentally-conscious
operation..........................................................5
3.2 Maintenance ...................................................5
4 Scope of supply...................................................5
4.1 Accessories.....................................................5
4.2 Components of the unit.................................6
5 Storage, transport, installation .....................6
5.1 Storage ............................................................6
5.2 Transport and unpacking ..............................6
5.3 Installation .......................................................6
6 Install the hydraulic connections .................7
6.1 Supply and return sensor..............................7
6.2 Outdoor sensor...............................................8
7 Electrical installation .........................................8
7.1 Connect the electrical cables.......................8
7.2 Electrical connection .....................................8
8 Control panel ........................................................9
9 Commissioning ..................................................10
10 Faults......................................................................10
11 Dismantling and disposal..............................10
11.1 Dismantling ...................................................10
11.2 Disposal and recycling ................................10
11.3 Removalofthebuerbattery.....................10
Technical data / Scope of supply...................... 11
Free pressing.............................................................. 11
Dimensioned drawings ..........................................12
Drill pattern ..................................................................12
Installation plan..........................................................13
Terminal diagram......................................................14
Terminal diagram mains connection
heat pump 3~400V ......................................16
Terminal diagram mains connection
heat pump 1~230V.......................................17
Circuit diagrams ........................................................18
3
Subject to technical amendments without prior notice | 83058800fUK | 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 pass on to the new owner if the unit changes
hands.
►If you have any questions or anything is unclear,
ask the manufacturer's local partner or the
factory's customer service.
►Note and follow all other reference documents.
1.1 Validity
This operating manual refers solely to the unit
identiedbythenameplate.
1.2 Reference documents
The following documents contain additional
information to this operating manual:
●Planning & design manual, hydraulic integration
●Operating manual of the heat pump
●Operating manual of the heating and heat pump
controller
●Brief description of the heat pump controller
●Operating manual of the expansion board
(accessory)
●Logbook
1.3 Symbols and markings
Identicationofwarnings
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
Informationforqualiedpersonnel
Information for the owner/operator
Requirement for action
Procedural instructions:
Single step action prompt
1., 2., 3., … Procedural instructions:
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
Secure connections against twisting
4Subject to technical amendments without prior notice | 83058800fUK | 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:
●www.ait-deutschland.eu
2 Safety
Only use the unit when it is in awless 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 designed for household use and, combined
with a compatible air/water heat pump, is solely
intended for the following purposes
●Heating
●Domestic hot water preparation
●Cooling(owtemperatureofdownto18°C)
►Intended use includes complying with the
operating conditions (“Technical data / Scope
of supply”, page 11) and the operating manual
and observing 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 Personnelqualications
The operating manuals supplied with the product are
intended for all users of the product.
The operation of the product via the heating and heat
pump control and work on the product which is intend-
ed for end customers / operators is suitable for all age
groups of persons who are able to understand the ac-
tivities and the resulting consequences and can carry
out the necessary activities.
Children and adults who are not experienced in han-
dling the product and do not understand the neces-
sary 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.
Theproductmayonlybeopenedbyqualiedpersonnel.
All procedural instructions in this operating manual is
solelydirectedatqualied,skilledpersonnel.
Onlyqualied,skilledpersonnelareabletocarryout
the work on the unit safely and correctly. Interference
by unqualied personnel can cause life-threatening
injuries and damage to property.
►Ensure that the personnel is familiar with the lo-
cal regulations, especially those on safe and haz-
ard-aware working.
► Ensurethatthepersonnelarequaliedtohandle
ammable(primary)refrigerant.
►Work on the refrigerating circuit may only be car-
ried out by qualied personnel with appropriate
qualicationsforrefrigerationsysteminstallation.
► Allowqualiedpersonnelwith“electrical”training
only to carry out work on the electrics and elec-
tronics.
► Allow qualied, skilled personnel only to do any
other work on the system, e.g.
●Heating installer
●Plumbing installer
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
During transport and work on the unit, there is a risk of
cuts due to the sharp edges of the unit.
►Wear cut-resistant protective gloves.
During transport and work on the unit, there is a risk of
foot injuries.
►Wear safety shoes.
When working on liquid-conveying lines, there is a risk
of injury to the eyes due to leakage of liquids.
►Wear safety goggles.
5
Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
2.4 Residual risks
Injuries caused by electric shock
Components in the unit are energised with life-
threatening voltage. Before working on the unit:
►Disconnect unit from power supply.
►Secure unit against being switched back on again.
Existing earthing connections within housings or on
mounting plates must not be altered. If this should nev-
ertheless be necessary in the course of repair or as-
sembly work:
►Restore earthing connections to their original con-
dition after completion of the work.
3 Operation and maintenance
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).
3.1 Energy and environmentally-
conscious operation
The generally accepted requirements for an energy-
conscious and environmentally-conscious operation of
a heating system also apply to use of a heat pump.
The most important measures include:
● Nounnecessarilyhighowtemperature
●No unnecessarily high domestic hot water
temperature (note and follow local regulations)
●Do not open windows with just a gap or tilt open
(continuous ventilation); instead, open wide for a
short time (shock ventilation).
●Always ensure that the controller settings are
correct
3.2 Maintenance
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 products
4 Scope of supply
1 Box with recirculating pump
2 2x insertion sensors
3 Pump cable
4 Wall-mounted controller with control panel
5 Operating manual, installation materials
6 Outdoor sensor
7 Thermal compound
1. Check the delivery for outwardly visible signs of
damage.
2. Check the scope of supply for completeness.
Any defects or incorrect deliveries must be
reported immediately.
●Outdoor sensor
●Recirculating pump with seals
●Supply sensor, 6 m cable
●Return sensor, 6 m cable
●Load and signal cable for recirculating pump (5 m
each, it is not permitted to extend the cable).
●Thermal compound
●Fasteners for sensors
4.1 Accessories
The following accessories are available for the unit
through the manufacturer's local partner:
●Expansion board with various additional functions
●Room control unit for controlling the main
functions from the living room
●Electrical connection kit EVS or EVS 8
●Domestic hot water tank
●Buertank
●Immersion heater
6Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
4.2 Components of the unit
3
8
6
7
9
4
2
1
10
5
1 Cable entry with clamp
2 Cable glands
3 Device connection terminals
4 Connection terminals load cable / control
voltage
5 Control panel
6 Circuit board of heating and heat pump
control
7 Modbus hub distributor
8 Load cable connection socket
*)
9 Bus cable connection socket
*)
10 Closure of the unit front hood
*) for accessories
electrical connection kit EVS or EVS 8
Nameplate
A nameplate is attached to the outside of the unit at
the factory.
The nameplate contains the following information at
the very top:
●Model, item number
●Serial number
The nameplate also contains an overview of the most
important technical data.
5 Storage, transport, installation
5.1 Storage
►Store unit protected against:
●Moisture/damp
●Frost
●Dust and dirt
5.2 Transport and unpacking
Notes on safe transport
There is a risk of injuries or damage to property if the
unit falls or overturns.
NOTE
To prevent damage during transport, always
transporttheunittonalinstallationlocation
in its original packaging.
Carrying the unit
►Transport the wall-mounted controller to the
installation location.
Unpacking
1. Remove plastic lms and cardboard. Ensure that
you do not damage the unit.
2. Dispose of the transport and packaging material
in an environmentally friendly way and in
accordance with local regulations.
5.3 Installation
Installation location
IMPORTANT
Install the unit inside buildings only.
The installation area must be frost-free and dry. It must
fulltherelevantlocalregulations.
Observe safety and service clearances.
“Installation plan“, page 13, and “Dimensioned
drawings“, page 12
7
Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
Assembly
IMPORTANT
The load-bearing capacity of the wall must be guar-
anteed.
1. Align drill pattern, mark drill holes and drill.
“Drill pattern“, page 12
2. Takeothefronthood.
1
4
3
2
3. Set aside the front hood so that it is protected
from damage.
4. Use the plugs and screws supplied to x the
wall-mounted controller onto the wall:
The plugs supplied are only suitable for use with the
following types of walls:
●Concrete
●Solid lightweight concrete blocks
●Cavity block made of lightweight concrete
●Cellular concrete
●Prestressedconcrete-hollowceiling/oorslabs
●Natural stone with dense, close-grained micro-
structure
●Solid calcium silicate blocks
●Perforated calcium silicate blocks
●Solid bricks
●Vertically perforated (honeycomb) bricks
● Hollowoors/ceilingsmadeofclaybricks,con-
crete or similar
●Solid gypsum boards
● Gypsumboardsandgypsumbreboards
●Particle boards
The board material must be dimensioned with
sucientthicknesstoensuresecurexing.
Appropriate xing material must be provided on site
for other types of wall constructions.
IMPORTANT
The gap between the unit and the wall helps back
ventilation.Itmaynotbesealedorclosedo.
5. Lay cable glands at a distance of at least 2 cm
from the wall-mounted controller.
6 Install the hydraulic connections
IMPORTANT
Dirt and deposits in the (existing) hydraulic system
can cause damage to the heat pump.
►Ensure that a sludge separator is installed in the
hydraulic system.
►Rinse the hydraulic system thoroughly prior to es-
tablishing the hydraulic connection of the heat
pump.
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
required for the unit type (“Technical data /
Scope of supply”, page 11).
6.1 Supply and return sensor
1. Fastenthesupplyvolumetricowmeter(②) to the
heat-conducting pipe of the supply line coming
from the heat pump (①) using cable ties and ther-
mal compound.
2. Fasten the return sensor (④) to the heat-conduct-
ing pipe of the return line leading to the heat pump
(③) using cable ties and thermal compound.
4
3
1
2
Hydraulic integration documents
8Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
3. Lay both sensor cables to the wall-mounted con-
troller.
6.2 Outdoor sensor
Operating manual of the heating and heat pump
controller, part 2
7 Electrical installation
7.1 Connect the electrical cables
IMPORTANT
Irreparable damage to the compressor due to
wrongrotatingeld!
► Ensurethatthereisaclockwiserotatingeldfor
the compressor load infeed.
Basic information on the electrical connection
● The specications of the local energy supply
company may apply to electrical connections
●Fit the power supply for the heat pump with an
all-pole 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 11)
●Comply with the electromagnetic compatibility
regulations (EMC regulations)
●Lay unshielded power supply cables and shielded
cables(buscable)sucientlyfarapart(>100mm)
●Maximum line length: 30m
Cable extension details see heat pump manual
7. 2 Electrical connection
The wall-mounted controller is connected electrically
on site according to the following scheme:
5
1 Heat pump
2 Bus cable (shielded)
(accessory: electrical connection kit EVS or
EVS 8)
3 Load cable compressor
(accessory: electrical connection kit EVS or
EVS 8)
4 Wall-mounted controller
5 Control voltage
6 Load cable compressor
7 Sub-distribution
1. Fit the connectors to the bus cable and power ca-
ble of the heat pump.
Operating manual of the heat pump
2. Open the clamp (①) of the cable entry.
1
1
3. Route the wired plugs of the heat pump bus cable
(②) and power cable (③) between the two rubber
seals (④) and plug them into the corresponding
socket in the wall-mounted controller.
4 3 2
9
Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
4. Strip the control and sensor cable, of the ca-
ble for the EVU blocking time as well as the ca-
bles of external loads before feeding them into the
wall-mounted controller (stripping length of each
of the individual wires: 6 mm).
5. Route cables and wires between the two rubber
seals (④), route them through the cable ducts in
the wall-mounted controller and make the electri-
cal connections in accordance with the terminal
diagram.
“Terminal diagram”, page 14
NOTE
The control panel of the heating and heat
pump controller can be connected to a
computer or network using a suitable network
cable, enabling the heating and heat pump
controller to be controlled remotely from
there.
If such a connection is desired, route a
shielded network cable (category 6, with
RJ45 connector) into the wall-mounted
controller and plug it to the corresponding
socket (②) of the control panel.
1 2 43
1 RS485 for connecting the room control unit
RBE (accessory)
2 RJ45 for network cable connection
3 RS485 LIN bus cable connection to the
control board
4 RJ45 connection Modbus cable to Modbus
distributor.
6. Close the clamp and screw it tightly in place.
7. Put on the front hood of the unit and screw it tight-
ly in place.
8 Control panel
The control panel is pre-assembled at the factory.
If the control panel needs to be removed for any rea-
son:
1. Disconnect or unplug all connections at the bottom.
2. Liftothecontrolpanel.
4x
►To reattach the control panel, proceed in reverse
order.
10 Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
9 Commissioning
Operating manual of the heating and heat pump
controller
Operating manual of the heat pump
10 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 (Nameplate) to
hand.
11 Dismantling and disposal
11.1 Dismantling
►Separate components by their materials.
11.2 Disposal and recycling
►Recycle or ensure proper disposal of unit
components and packaging materials in
accordance with local regulations.
11.3 Removalofthebuerbattery
1. Use a screwdriver to push out the buer battery
on the processor board of the control panel.
2. Dispose ofthe buerbatteryin accordancewith
local regulations.
11
Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
Accessories for heat pump type WR 2.1-1/3 8kW WR 2.1-1/3 12kW
Air/water 8 kW output-controlled | Air/water 12 kW output-controlled • yes – no • | – – | •
Air/water Dual output-controlled • yes – no – | – – | –
Installation location
Room temperature min. | max. °C 5 | 35 5 | 35
Relative humidity %60 60
Sound
Sound pressure level at 1 m distance inside dB(A) – –
Sound power level inside dB(A) – –
Heating circuit
Flow rate: minimum | maximum (see heat pump for pipe dimensioning) l/h | l/h 600 | 1200 600 | 1900
Free pressing | Pressure loss | Flow rate bar | bar | l/h 0,9 | – | 1200 0,68 | – | 1900
Volume flow: minimum | nominal analogous to A7W35 (partial load operation) | maximum l/h 600 | 600 | 1200 600 | 850 | 1900
Max. allowable operating pressure bar 3 3
Circulation pump control range min. I max. l/h 600 ı 1200 600 ı 1900
General unit data
Total weight kg 5,3 5,3
Weight of individual components kg | kg | kg – | – | – – | – | –
Electrics
Voltage code | all-pole fuse protection for heat pump *)**) 1 phase … | A 1~N/PE/230V/50Hz | B16 – | –
Voltage code | all-pole fuse protection for heat pump *)**) 3 phases … | A 3~N/PE/400V/50Hz | B16 3~N/PE/400V/50Hz | B16
Voltage code | Control voltage fuse protection **) … | A 1~N/PE/230V/50Hz | B10 1~N/PE/230V/50Hz | B10
Voltage code | Electric heating element fuse protection **) 1 phase … | A – | – – | –
Voltage code | Electric heating element fuse protection **) 3 phases … | A – | – – | –
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 – | – | – – | – | –
Circulation pump power consumption, heating circuit min. I max. W4 | 75 4 | 75
Other unit information
Safety valve Heating circuit | Response pressure included in scope of supply: • yes – no | bar – | – – | –
Buffer tank | Volume included in scope of supply: • yes – no | l – | – – | –
Diaphragm expansion vessel Heating circuit | Volume | Prepressure incl. in scope of supply: • yes – no | l | bar – | – | – – | – | –
Overflow valve | Changeover valve, heating -Domestic hot water integrated: • yes – no – | – – | –
Vibration decoupling, Heating circuit | Heat source included in scope of supply or integrated: • yes – no – –
Controller | Heat quantity recording | Extension board included in scope of supply or integrated: • yes – no • | • | – • | • | –
813317a 813317a
*) compressor only, **) note local regulations
Bezeichnung:
Datei: 823281 Freie Pressung WR 2.1-1/3
Änd./ÄM/Ersteller/Datum
- /PEP 012-2016 / Döring / 17.07.2017
823281
Seite: 1/1
Zeichnungsnummer:
Legende:
“”
Volumenstrom Heizwasser in m3/h
∆pmax
maximale freie Pressung
Freie Pressung WR 2.1-1/3
823281
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0,0 0,5 1,0 1,5 2,0 2,5 3,0
Δ
pmax [bar]
Δ
pmax
Δp
“ ” [m3/h]
Key: UK823281Key: UK823281
“”“” Hot water ow rateHot water ow rate
∆pmax∆pmax Maximum free pressingMaximum free pressing
Technical data / Scope of supply
Free pressing
12 Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
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Oberflächen
ArtikelNr.
Schutzvermerk ISO 16016 beachten
DIN ISO 2768 -cL
Gruosso
4.7.2017
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PEP 012/2016
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toleranz
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DIN ISO 2768 -cL
Gruosso
4.7.2017
Gruosso
11.4.2017
NG
4.7.2017
PEP 012/2016
-
819482
WR 2.1-1/3
Maßbild Wandregler
Key: UK819482-Key: UK819482-
All dimensions in mm.All dimensions in mm.
Pos.Pos. NameName Pos.Pos. NameName
AAFront viewFront view 11Control panelControl panel
BBSide view from leftSide view from left 22Feed-through for electric/sensor cablesFeed-through for electric/sensor cables
FFView from belowView from below
Key: UK819494Key: UK819494
All dimensions in mm. Spacing for drill pattern.All dimensions in mm. Spacing for drill pattern.
Pos.Pos. NameName
11HoleØ6,forwall/oorplugs(accompanyingpackage)HoleØ6,forwall/oorplugs(accompanyingpackage)
Dimensioned drawings
Drill pattern
WR 2.1
13
Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
>500 >150
>980
>200
>300
OKF
>500
>676
FS
<70
>120
FS
Legende: 819483-
Alle Maße in mm.
OKF Oberkante Fertigfußboden
FS Freiraum für Servicezwecke
Technische Änderungen vorbehalten.
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D - 95359 Kasendorf
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Maßstab
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1:20
Det. Maßstab
Datum
Name
Erstellt
Gepr.
Norm.
toleranz
Allgemein-
Oberflächen
ArtikelNr.
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DIN ISO 2768 -cL
Gruosso
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NG
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PEP 012/2016
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819483
Wandregler WR 2.1-1/3
Aufstellungsplan, Mindestabstände
Key: UK819483-Key: UK819483-
All dimensions in mm.All dimensions in mm.
Pos.Pos. NameName
FSFS Free space for service purposesFree space for service purposes
OKFOKF TopedgeofthenishedoorTopedgeofthenishedoor
Installation planWR 2.1
14 Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
Sheet
Page
=MA1 +SS1
Installation circuit diagram
10 76 8 93
11
4
1
2 5
10 /
831246a
ait-deutschland GmbH
Industriestraße 3
95359 Kasendorf
Germany
MAPChecked by
Changed on 18.05.2022
KAF
11.03.2022
Creator
Created on
Changed by KAF
Item no
817478a
Circuit diagram
Install. Nr
&EFZ
Refer to protection notice ISO 16016.
WR 2.1-1/3
Doc. no.
Revision
K10
A1
A2
EVU
Sub-distribution unit internal installation
M
BUP HUPZUPFP1
X3-2
X3-1
X4
X5-1
X9 L
NPE NPE
L MZ1 L L
NPE NPE
L
NPE NPE
3G1,5mm²
3G1,5mm²
4G1,5mm²
3G1,5mm²
3G1,5mm²
2x0,75mm²
2x0,75mm²
2x0,75mm²
IMPORTANT
The cable cross-sections shown are only intended as a guideline for the
electrician! They must be adapted to the regional regulations and the
conditions of use (e.g. cable length, current carrying capacity, ambient
temperature, type of installation)!
UK
831246a
TRL
ϑ
TA
ϑ
TB1
ϑ
TBW
ϑ
X5-2
MA1
M
MIS
TRLext
ϑ
2x0,75mm²
TVL
ϑ
ZIP
Alternative
FP1
Alternative
ZW2, SST
BN
GN
WH
K11
1
2
LIN
3
GND
4
12V
RJ45
X20
1
X1
2
X1 3
X1
4
X1
K10
4
X10
12V
X6
1
X11
2
X11
3
X11
4
X11
5
X11
6
X11
BU
BUWH
K10
OUT4
X3-1
OUT5
X3-1
OUT2
X3-1
OUT3
X3-1
OUT6
X3-1
OUT8
X3-1
OUT7
X3-1
NTC8
X5-2
GND8
X5-2
NTC2
X5-1
GND2
X5-1
NTC4
X5-1
GND4
X5-1
NTC3
X5-1
GND3
X5-1
L
X4
IN3
X3-2
NTC5
X5-1
GND5
X5-1
NTC6
X5-1
GND6
X5-1
NTC9
X5-2
GND9
X5-2
BLP
Alternative
X6
X10X11
YE
HUP/ZUB
PWM
NOTE
The illustration shows the connection of a pump with
PWM signal and continuous voltage. In this case, the
switching between HUP and ZUP is done in the software.
For pumps without PWM signal, observe the upper illustration.
NL PE BNBU BK
2x0,75mm²
451
X200 2
1
X1
2
X1
3
X1
4
X1
3
CW
PE1-5
X10 N1-5
X10 L PEN X10 1 2 3 4
Terminal diagram 1/2 WR 2.1
15
Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
Sheet
Page
=MA1 +SS1
Keys
10 76 8 93
11
4
3
2 5
11 /
831246a
ait-deutschland GmbH
Industriestraße 3
95359 Kasendorf
Germany
MAPChecked by
Changed on 18.05.2022
KAF
11.03.2022
Creator
Created on
Changed by KAF
Item no
817478a
Circuit diagram
Install. Nr
&EFZ
Refer to protection notice ISO 16016.
WR 2.1-1/3
Doc. no.
Revision
EVU / SG 1 Block by power supply company (jumper if no blocking time) / Smart Grid control 1
FanVBO
ZW2/SST Additional heat generator 2 / group fault
ZIP DHW circulation pump / cooling signal / domestic hot water charge pump
ZUP Additional (feeder) circulation pump
HUP Heating circuit circulation pump
BUP Domestic hot water circulation pump / switching valve
TRL Temperature sensor, return
TA
TB1
TBW
Controller circuit board; Caution: I max = 6.3A/230VACK10
K11 Control panel
Equipement Description
UK 831246a
Wired
TRLext.
TVL
CW Coding resistor
BLP Domestic hot water charging pump
Control voltage feed
MODBUSX200
X10
X20 MODBUS circuit board
MA1 Mixing circuit 1 open (discharge mixer / cooling mixer / charge mixer)
MZ1 Mixing circuit 1 closed (discharge mixer / cooling mixer / charge mixer)
FP1
Outdoor temperature sensor
Temperature sensor, mixing circuit 1
Domestic hot water temperature sensor / domestic hot water thermostat
Temperature sensor, external return
Temperature sensor supply
Mixing circuit 1 circulation pump
SG 2 Smart Grid control 2
Terminal diagram 2/2WR 2.1
16 Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
Sheet
Page
=MA1 +SS1
Installation circuit diagram
10 76 8 93
7
4
1
2 5
7/
831226
ait-deutschland GmbH
Industriestraße 3
95359 Kasendorf
Germany
MAPChecked by
Changed on 07.07.2022
KAF
07.07.2022
Creator
Created on
Changed by KAF
Item no
Circuit diagram
Install. Nr
&EFZ
Refer to protection notice ISO 16016.
Doc. no.
Revision a
X8
1x230V 50Hz / N / PE
Power supply control
Sub-distribution unit internal installation
Please refer to the technical data for fuse protection!
UK
831226
1x400V 50Hz / N / PE
Power supply compressor
FKU1
FKU2
X8
X10
Terminal for compressor
Terminal for control
Circuit breaker compressor
Circuit breaker control
Equipement Description
X10
PE
X8 NL1 L2 L3
FKU2FKU1
N1-5
X10 L
PE N
PE1-5
PE N
Terminal diagram mains connection heat pump 3~400V WR 2.1
17
Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
Sheet
Page
=MA1 +SS1
Installation circuit diagram
10 76 8 93
7
4
1
2 5
7/
831227
ait-deutschland GmbH
Industriestraße 3
95359 Kasendorf
Germany
MAPChecked by
Changed on 07.07.2022
KAF
07.07.2022
Creator
Created on
Changed by KAF
Item no
Circuit diagram
Install. Nr
&EFZ
Refer to protection notice ISO 16016.
Doc. no.
Revision a
X8
1x230V 50Hz / N / PE
Power supply control
Sub-distribution unit internal installation
Please refer to the technical data for fuse protection!
UK
831227
PE
X8 NL1 L2 L3
1x230V 50Hz / N / PE
Power supply compressor
FKU1
FKU2
X8
X10
Terminal for compressor
Terminal for control
Circuit breaker compressor
Circuit breaker control
Equipement Description
X10
FKU1 FKU2
PE1-5N1-5
PE N
X10 L
PE N
Terminal diagram mains connection heat pump 1~230VWR 2.1
18 Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
Sheet
Page
=MA1 +SS1
Compressor, heating
10 76 8 93
11
4
1
2 5
5/
831246a
ait-deutschland GmbH
Industriestraße 3
95359 Kasendorf
Germany
MAPChecked by
Changed on 18.05.2022
KAF
11.03.2022
Creator
Created on
Changed by KAF
Item no
817478a
Circuit diagram
Install. Nr
&EFS
Refer to protection notice ISO 16016.
WR 2.1-1/3
Doc. no.
Revision
UK
817478a
PENL1
X8 L2 L3
3x400V 50Hz / N / PE
Compressor feed
UH
Control cabinet
/2.0
/3.7
/3.8
Direct connection
2,5
mm²
RD
2,5
mm²
RD
2,5
mm²
GNYE L1
X100 N PEL2 L3
2,5
mm²
RD
2,5
mm²
RD
L1 L2 L3 PEN
Circuit diagram 1/4 WR 2.1
19
Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
Sheet
Page
=MA1 +SS1
Control
10 76 8 93
11
4
2
2 5
6/
831246a
ait-deutschland GmbH
Industriestraße 3
95359 Kasendorf
Germany
MAPChecked by
Changed on 18.05.2022
KAF
11.03.2022
Creator
Created on
Changed by KAF
Item no
817478a
Circuit diagram
Install. Nr
&EFS
Refer to protection notice ISO 16016.
WR 2.1-1/3
Doc. no.
Revision
EVU
1x230V 50Hz / N / PE
Control voltage feed
2 1
X10_PE4_3 / 3.4
X10_PE2_3 / 3.4
LN
UK
817478a
IN2
X3-2
OUT1
X3-1
L
X4
IN3
X3-2
GND
X6
/A
X6
K10
/3.1
&EFZ/1.3
&EFZ/1.7
PE
X0
N
X0
L
X0
AIN1
X9
AGND1
X9
AOUT1
X9
1
2
3
4
N
1
2
3
4
PE3
1
2
3
4
PE4
1
2
3
4
LL
1
2
3
4
N3
1
2
3
4
N4
0,75
mm²
OG
0,75
mm²
GNYE
0,75
mm²
WH
Direct connection
UH
Control cabinet /1.2
3
0,75
mm²
OG
4
X10
PE
1
2
3
4
X10
N1
1
2
3
4
N5
1
2
3
4
X10
PE1
1
2
3
4
PE5
1
2
3
4
X10
L
Circuit diagram 2/4WR 2.1
20 Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
Sheet
Page
=MA1 +SS1
Control
10 76 8 93
11
4
3
2 5
7/
831246a
ait-deutschland GmbH
Industriestraße 3
95359 Kasendorf
Germany
MAPChecked by
Changed on 18.05.2022
KAF
11.03.2022
Creator
Created on
Changed by KAF
Item no
817478a
Circuit diagram
Install. Nr
&EFS
Refer to protection notice ISO 16016.
WR 2.1-1/3
Doc. no.
Revision
K11
&EFZ/1.8
1
2
LIN
3
GND
4
12V
RJ45
X20
&EFZ/1.6
1
X1
2
X1 3
X1
4
X1
1
X6
K10
/2.1
GND3
X5-1
NTC3
X5-1
GND6
X5-1
NTC9
X5-2
GND9
X5-2
NTC6
X5-1
GND8
X5-2
NTC8
X5-2
4
X10
12V
X6
1
X11
2
X11
3
X11
4
X11
5
X11
6
X11
0,34
mm²
BN
0,34
mm²
YE
WK11-1 321
XSH1
UH
Control cabinet
SH
1
X200 2 3 4
0,34
mm²
WH
0,34
mm²
GN
1
mm²
GNYE
XSH2
UH
Control cabinet
WK11-2 BUBUWH SH
1
mm²
GNYE
0,34
mm²
BN
1
X5
2
X5
3
X5
4
X5
5
0,34
mm²
YE
CW
&EFZ/1.8
16,2kΩ
X10_PE4_3
2.2
X10_PE2_3 / 2.1
Circuit diagram 3/4 WR 2.1
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