alphainnoTec Luxtronik User manual

83055400fUK – Translation of the original instruction manual (2.1)
UK
Operating manual
Luxtronik
Heating- and Heat Pump Control
Controller part 2
Scope of delivery, Montage, Electrical connections,
Installation of sensors, Dismantling
Software update
Switching on for the first time / Commissioning
Program area “Cooling“
Program area “Service“
Appendix

2We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
Please read rst
This operating manual is part 2 of the 2-part operating manual for
the heating and heat pump controller. Ensure that you have part 1
of this operating manual. If part 1 is missing, request it from your
supplier
This operating manual provides important information on the
handling of the unit. It is an integral part of the product and must
be stored so that it is accessible in the immediate vicinity of the
unit. It must remain available throughout the entire service life of
the unit. It must be handed over to subsequent owners or opera-
tors of the unit.
Read the operating manual before working on or operating the
unit. This applies in particular to the chapter on safety. Always fol-
low all instructions completely and without restrictions.
It is possible that this operating manual may contain instructions
that seem incomprehensible or unclear. In case of questions or
uncertainty, contact the factory customer service department or
the manufacturer’s local service partner.
This operating manual is intended only for persons assigned to
work on or operate the unit. Treat all constituent parts conden-
tially. The information contained herein is protected by copyright.
No part of this information may be reproduced, transmitted, cop-
ied, stored in electronic data systems or translated into another
language, either wholly or in part, without the express written
permission of the manufacturer
Symbols
Information for operators.
Information or instructions for qualied technicians and
authorised service personnel.
DANGER
Indicates a direct impending danger resulting in severe
injuries or death.
DANGER
Indicates danger to life due to electric current!
WARNING
Indicates a possibly dangerous situation that could re‑
sult in severe injuries or death.
CAUTION
Indicates a possibly dangerous situation that could re‑
sult in medium or light injuries.
ATTENTION
Indicates a possibly dangerous situation, which could re-
sult in property damage.
NOTE
Emphasized information.
€
ENERGY SAVINGTIP
Indicates suggestions that help to save energy, raw mate-
rials and costs.
Users and qualied technicians can set data.
Authorized tter can set data; password required.
Authorised service personnel can set data. Access via
USB stick only.
Factory pre-setting, no data change possible
1., 2., 3., … Numbered step within a multi-step instruction for ac-
tion. Adhere to the given sequence.
●List.
9Prerequisite for an action.
Reference to further information elsewhere in the oper-
ating manual or in another document.

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We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
Contents
MAKING SETTINGS ................................................................................................17
Determine data access...............................................................................17
Calling up short programs.......................................................................17
Determining temperatures.....................................................................17
Hot gas utilisation / desuperheater................................................... 19
Determining priorities ..............................................................................20
Determining system setting.................................................................. 20
Ventilating the system.............................................................................. 23
Fix startup parameters ............................................................................. 24
Save error memory externally..............................................................25
Eciency pump............................................................................................ 25
RBE – room control unit........................................................................... 26
Second heat generator............................................................................. 26
Inverter .............................................................................................................. 27
FlexCong........................................................................................................ 27
Silent Mode..................................................................................................... 28
Pump ow........................................................................................................ 28
Smart Grid........................................................................................................ 29
Operating states........................................................................................ 29
Set decrease / increase.......................................................................... 29
Terminal Diagrams Smart Grid..........................................................30
SELECTING LANGUAGE OF THE SCREEN DISPLAY .....................................30
DETERMINING DATE AND TIME ....................................................................... 30
SCREED HEATING PROGRAM ............................................................................ 31
Setting temperatures and time intervals....................................... 31
Starting screed heating program....................................................... 31
Manually terminating screed heating program......................... 32
SYSTEM CONFIGURATION ................................................................................. 32
STARTUP GUIDE .................................................................................................... 33
STARTUP PARAMETER BACK ............................................................................. 33
DATA LOGGER ........................................................................................................34
CONTROL PANEL ...................................................................................................34
Adjusting the contrast of the
control element display.......................................................................34
Web server.......................................................................................................34
Remote maintenance................................................................................34
APPENDIX
ERROR DIAGNOSIS / ERROR MESSAGES.................................................. 35
Acknowledging a fault................................................................................. 39
Flashing codes on controller board...................................................... 39
TECHNICAL DATA .................................................................................................. 39
Installation.......................................................................................................... 39
Outputs ................................................................................................................ 39
Inputs..................................................................................................................... 39
Connections....................................................................................................... 39
Interfaces............................................................................................................. 39
Protection class................................................................................................ 39
Temperature sensor characteristic curve.......................................... 39
Overview: Defrost cycle, Air defrost, Flow Max............................40
Sensor measuring range.............................................................................40
SYSTEM SETTING DURING COMMISSIONING...................................... 41
IMPORTANT ABBREVIATIONS........................................................................ 45
PLEASE READ FIRST.................................................................................................2
SYMBOLS.......................................................................................................................2
SCOPE OF DELIVERY, MONTAGE, ELECTRICAL CONNECTIONS,
INSTALLATION OF SENSORS, DISMANTLING
SCOPE OF DELIVERY...............................................................................................4
Installed control scope of supply..............................................................4
Wall control scope of supply.......................................................................4
MONTAGE......................................................................................................................4
Installing the installation control..............................................................4
Assembly of the wall control.......................................................................4
Air/Water outdoor units standard......................................................4
Air/Water outdoor units professional (LWP).................................4
ELECTRICAL CONNECTIONS..............................................................................5
Installation of the Wall-control ..................................................................5
Air/Water outdoor units standard......................................................5
Air/Water outdoor units professional (LWP).................................5
Control unit variants ........................................................................................7
Variants of the control board......................................................................7
Assembly and Installation of sensors.....................................................8
Hot water sensor.............................................................................................8
External return ow sensor.......................................................................8
DISMANTLING ............................................................................................................9
Removal of the buer battery....................................................................9
SOFTWAREUPDATE / DOWNGRADE...........................................................9
SWITCHING ON FOR THE FIRST TIME / COMMISSIONING...............9
PROGRAM AREA “COOLING”
SELECT PROGRAM AEREA ...................................................................................11
SETTING THE MODE OF OPERATION “COOLING“ .......................................11
SET TEMPERATURES ............................................................................................. 12
SET PARAMETERS ................................................................................................. 12
COOLING BASED ON SET TEMPERATURE OR
DEPENDING ON OUTDOOR TEMPERATURE ............................................... 13
THE COOLING RELEASE CAN TAKE PLACE DEPENDING ON THE
OUTDOOR TEMPERATURE OR AFTER A FIXED TEMPERATURE = SET
TEMPERATURE. ................................................................................................... 13
PROGRAM AREA “SERVICE“
SELECT PROGRAM AREA .................................................................................... 14
QUERY INFORMATION ......................................................................................... 14
Query Temperatures.................................................................................. 14
Query inputs................................................................................................... 14
Query outputs............................................................................................... 15
Query elapsed times.................................................................................. 15
Query operating hours............................................................................. 15
Calling up error memories...................................................................... 16
Calling up disconnections ...................................................................... 16
Calling up the machine status.............................................................. 16
Heat quantity ................................................................................................. 16

4We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
ASSEMBLY OF THE WALL CONTROL
Air/Water outdoor units standard
Operating Manual wall-mounted controller
Air/Water outdoor units professional (LWP)
For all work to be carried out:
NOTE
Observe the locally-applicable accident prevention regula-
tions, statutory provisions, ordinances and directives.
WARNING
Only qualied technicians may mount the heating and
heat pump control.
1. Position the drill template at the point where the heating
and heat pump control is to be located.
ATTENTION
Check the potential mounting location for concealed wir-
ing. Position the drill template in such way that no con-
cealed wiring can be drilled into or damaged during the
subsequent assembly work.
NOTE
You need to ensure ≥ 2 cm free space to the right and left
of the drill template, so that there is enough space for the
side fastening screws of the housing cover.
2. Fix drill template onto the wall with adhesive tape, drill holes
(Ø 6 mm, depth ≥ 55 mm).
3. Take drill template o the wall, insert dowels in the holes,
screw in screws (spacing from the substrate to the screw
head approximately 10mm).
NOTE
The wall mounting material included in the scope of sup-
ply requires solid masonry.
4. Loosen right and left fastening screw of the housing cover
for the heating and heat pump controller.
Scope of delivery
NOTE
Function-critical temperature sensors (return, inlet, hot
gas) are installed in the heat pump and are not part of the
scope of supply of the heating and heat pump regulator.
The heating and heat pump regulator is supplied in two variants.
The variant supplied is dependent on the device type of the heat
pump to the controlled.
INSTALLED CONTROL SCOPE OF SUPPLY
In the case of devices for internal mounting, the control card of
the heating and heat pump regulator is integrated in the relevant
device as an “installed control”. The “installed control” scope of
supply is included in the scope of supply of the device for inter-
nal mounting.
●Heating and heat pump regulator,
consisting of control card (with terminals) and operating el-
ement (with status display, screen and “rotary pushbutton”)
●External sensor for the surface mounting
●Operating manual (in two parts)
●Brief description of the heat pump control.
WALL CONTROL SCOPE OF SUPPLY
In the case of devices for external mounting, the control card of
the heating and heat pump control is not integrated in the rele-
vant device but in the wall control.
●Heating and heat pump control for surface mounting,
consisting of control card (with terminals), housing and
operating element (with status display, screen and “rotary
pushbutton”)
●Wall mounting materials (drill template, screws, dowels
for solid masonry)
●External sensor for the surface mounting
●Operating manual (in two parts)
●Brief description of the heat pump control
1. Check the supplied product for signs of external damage dur-
ing delivery.
2. Check that nothing is missing from the scope of supply.
Immediately submit a complaint in the event of delivery de-
fects.
Montage
INSTALLING THE INSTALLATION CONTROL
In the case of devices for internal mounting, the control card of
the heating and heat pump is integrated in the electrical switch
cabinet of the device.
Operating instructions of your heat pump, assembly of the
operating element

5
We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
INSTALLATION OF THE WALL-CONTROL
Air/Water outdoor units standard
Operating Manual wall-mounted controller
Air/Water outdoor units professional (LWP)
1. If not yet carried out: Remove housing cover of the heating
and heat pump contro.
section “Montage”, “Assembly of the wall control”, instruc-
tions 4. – 5.
1 Operating element
2 Control card of the heating and heat pump control
3 LIN-BUS communication cable between control board and
control unit (wired in the factory)
4 Extension board “2.1-EP”
5 Terminal (X10 Modbus) for BUS cable to the outdoor unit
6 Fastening screw of the folding bracket
7 Cable entry with folding bracket
8 Cable ducts with covers (covers now shown here in the
gure)
9 TRL return sensor terminal (on NTC8)
10 EVU bridges (must be removed when connecting a oating
contact)
11 Terminal block for 1~/N/PE/230 V voltage supply
12 Connection for circulation pump PWM control signal
2. Loosen fastening screw of the folding bracket for the cable
entry and pull the folding bracket downwards until it is possi-
ble to fold away upwards. Fold folding bracket upwards and
away to the side .
3. Remove covers from the cable ducts.
4. Connect the BUS communication cable, which leads to the
heat pump, to terminal X10 of the controller board.
Then route the BUS communication cable downwards and
through the cable ducts and through the cable entry to the
outside.
5. Connect the 230 V voltage supply line to the voltage supply
terminal block.
5. Remove housing cover and set aside in a safe place.
6. Hang the heating and heat pump control into the screws on
the wall. Tighten the screws.
1 Rear view 2 Front view
7. If the electrical installation is not to be carried out immedi-
ately afterwards: Put the housing cover back on and tighten
the side fastening screws.
Electrical connections
DANGER
Danger of fatal injury due to electric current!
Electrical connections may be installed only by qualied
electricians.
Before opening the unit, disconnect the system from the
power supply and secure it from being switched back on!
WARNING
During installation and while carrying out electrical
work, comply with the relevant EN‑, VDE and/or local
safety regulations.
Comply with technical connection requirements of the
responsible power supply company (if required by the
latter)!
Follow the information in the operating instructions of your heat
pump for establishing the electrical connections.
Operating instructions of your device, “Electrical Connec-
tions“, “Terminal Diagram“ and “Circuit Diagrams“ for your
device type
NOTE
Internal fuses of the wall control:
6,3 A (relay outputs), 1,6 A (transformer).

6We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
NOTE
The inputs and outputs on the control board are assigned
as shown on the device’s terminal connection diagram.
In addition, the assignment is shown on the inside of the
housing of the wall-mounted controller.
10. Place covers on the cable ducts. Swivel folding bracket of the
cable entry back into the initial position and allow to latch in-
to place below the fastening screw. Tighten fastening screw.
11. Put the housing cover back on and tighten the side fasten-
ing screws.
ATTENTION
Route all lines that you connect to the heating and heat
pump control outside the heating and heat pump in a ca-
ble duct (necessary for strain relief; to be realised at the
customer).
ATTENTION
The BUS communication cable must be laid at a spacing >
10 cm from other cables. Therefore, lay with the appropri-
ate spacing in a separate cable duct.
1 1~/N/PE/230V power supply (to the terminal block); cable
cross-section max. 2.5 mm²
2 other 230 V inputs (electricity outage , …)
3 Sensor cables including the TRL return sensor on the return
to the heat pump
4 BUS communication cable to the outdoor unit
5 other 230 V outputs (circulation pumps, mixers, , …)
6 PWM control signal for circulation pump
7 230 V power supply to the outdoor unit
K Cable ducts
NOTE
The terminal block has spring-type terminals to maximum
2.5 mm.
Insulate the cable jacket so that the jacket end is located
between the sealing lip and cable duct.
6. Connect the 230V power supply for the outdoor unit to the
terminal block and route it downwards through the cable
ducts and through the cable entry to the outdoor unit out-
side.
7. Connect the PWM control signal for the circulation pump to
the terminal block --X10.
8. A separately packed return sensor (TRL) with appropriate in-
stallation materials is enclosed with the air/water heat pump
for outdoor installation. Use cable ties and heat transfer com-
pound to x the return sensor to the return (heat-conducting
pipe) to the heat pump as shown in the gure and connect
(to NTC8) as shown in the circuit diagram.
Basic wirng:
1 Connect BUS communication cable
2 Laying cables in the cable ducts
3 Connect TRL return sensor (on NTC8)
4 Connect 1~/N/PE/230 V power supply for wall-mounted
controller and outdoor unit
5 Connect PWM control signal for circulation pump
9. If necessary, install additional external cables.
Instruction manual for your appliance, “Connection layout”
and “Circuit diagrams” for your appliance type

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We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
I/O MAX control board
1 Slot for extra board MLRH
2 Slot for expansion board
3 Internal sensor inputs
4 LIN-Bus interface (for control unit)
5 Analog outputs
6 Analog inputs
7 External sensor inputs
8 Connection for circulation pump PWM
9 230 V inputs
10 230V distribution (continuous current)
11 230 V outputs
12 internal 230 V inputs and outputs
13 Control voltage
14 Fuse for relay outputs 6,3 A
15 Fuse for transformer 1,6 A
CONTROL UNIT VARIANTS
Depending on the heat pump type, the control unit integrated in
the heating and heat pump controller is equipped with the fol-
lowing interfaces:
Variant 1*) Variant 2*)
*) Variant device-dependent
Assignment of the plugs on the underside of the control unit:
Operating instructions of your heat pump.
VARIANTS OF THE CONTROL BOARD
Depending on the heat pump type, the heating and heat pump
controller is equipped with one of the following control boards:
HZ I/O control board
1 Slot for extra board MLRH
2 Slot for expansion board
3 LIN-Bus interface (for control unit
4 Modbus interface
5 Connection for circulation pump PWM
6 Analog outputs and inputs
7 External sensor inputs
8 230V distribution (continuous current)
9 230 V inputs
10 230 V outputs
11 Control voltage
12 Fuse for relay outputs 6,3 A
13 Fuse for transformer 1,6 A

8We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
Hot water sensor
The domestic hot water sensor is an optional accessory and only
functionally-relevant for a separate domestic hot water tank. You
may only use domestic hot water sensors which have been ap-
proved by the manufacturer of the heat pump.
ATTENTION
The domestic hot water tank must be lled before con-
necting the domestic hot water sensor to the heating and
heat pump regulator.
If not already prepared at the factory, mount the domestic hot
water sensor (Ø = 6 mm) on the halfway level of the domestic hot
water tank – and always above the internal heat exchanger of the
domestic hot water tank.
1 Domestic hot water connection
2 Cold water connection
3 Heat exchanger
4 Domestic hot water sensor (Ø = 6 mm)
5 Hot-water tank
External return ow sensor
The return ow sensor (optional accessory) is functionally-rele-
vant for hydraulic integration of an isolating tank (multifunction
tank .). This has to be installed as follows:
ZUP TRLext HUP
1 Separation or multi-functional storage tank
2 Circulation pump in the separation storage
tank (heat pump circuit)
3 Circulation pump from the separation storage
tank (heating circuit)
4 External return sensor (Ø = 6 mm)
ZUP Charging loop, heat pump
HUP Discharging loop, heating circuit
Connect the return ow sensor coming from the isolating tank to
the circuit board of the heating and heat pump regulator.
ASSEMBLY AND INSTALLATION OF SENSORS
The external sensor is a function-critical accessory and included
in the scope of supply.
NOTE
If the external sensor is not installed or defective, the heat-
ing and heat pump regulator automatically sets the exter-
nal temperature to -5 °C. The status display of the operat-
ing element lights up red, the screen of the operating ele-
ment reports a fault.
ATTENTION
Mount the external sensor on the north or northeast side
of buildings. The sensor must not be exposed to direct
sunlight.
ATTENTION
Make sure that water cannot penetrate the housing of the ex-
ternal sensor at any time. If necessary (e.g. during the construc-
tion phase), seal the cable gland separately.
1. Open the housing of the external sensor and align ≥ 2 m
over the base of the fastening point. The cable gland must
point to the base.
1 External sensor housing
2 Fastening holes
3 Cable gland
4 External sensor
2. Pencil on fastening holes and drill, insert dowels and screw
housing of the external sensor onto the wal.
NOTE
Dowels and screws for fastening the external sensor are
not included in the scope of supply.
3. Loosen cable gland from the housing of the external sen-
sor, lead the 2-wire cable (Ø ≤ 1.5 mm² per wire, cable length
≤50 m) through the cable gland into the housing.
4. Clamp on cable, tighten cable gland and close the housing
of the external sensor. Make sure that the housing seal is in the
correct position and that the tightness of the housing is guaran-
teed by stress-free installation.

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We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
Dismantling
DANGER
Danger of fatal injury due to electric current!
Electrical connections may be installed only by qualied
electricians.
Before opening the unit, disconnect the system from the
power supply and secure it from being switched back
on!
REMOVAL OF THE BUFFER BATTERY
ATTENTION
Before scrapping the heating and heat pump regulator, re-
move the buer battery on the main board. You can use
a screwdriver to remove the battery from its bracket. Dis-
pose of battery and electronic components in keeping
with environmental considerations.
Softwareupdate / ‑downgrade
Software updates / downgrades can be carried out via the USB in-
terface on the control unit of the heating and heat pump control-
ler.
1. Uncover the USB interface on the control unit.
Part 1 of the controller manual, program area “Service“, sec-
tion “Basic Information on the operation“
2. Insert the USB stick with the software into the USB interface
and follow the on-screen instructions.
ATTENTION
Only install updates / downgrades that are displayed in the
“Valid updates” (“Gültiges Updates”) list on the screen.
Switching on for the rst time /
Commissioning
A self-test starts when the controller voltage is switched on or af-
ter a restart of the heating and heat pump controller (reset). This
self-test checks whether basic heat pump components are avail-
able.
The displayed components vary according to heat pump
type.
The self-test can take up to 5 minutes.
The language selection then appears for a heat pump that has
not yet been congured (switching on for the rst time).
Select the display language: part 1 of the controller manual,
section “Basis information on the operation“.
NOTE
The language must be conrmed in any case.
Then click on the navigation arrow in the language display. A se-
curity prompt will then appear.
The safety prompt always appears when the control-
ler voltage is switched on or after a restart of the heating
and heat pump controller (reset).
This screen is no longer displayed if the heat pump or
ZWE1 has more than 10 operating hours.
No ZWE (second heat generator) is released by the controller until
the display is conrmed with .
NOTE
No heat generator runs during a cold start of air/water heat
pumps.
ATTENTION
The unit can be damaged if the display is conrmed with
, although the system is not properly lled.

10 We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
For brine/water heatpumps it is necessary to select which heat
source uid is to be used.
Brine
Must be selected if the heat pump is operated with a
brine-water mixture (= standard). Whether probes or
surface collectors are used is irrelevant.
If there is an intermediate heat exchanger on the heat source
side:
Water Brine
Must be selected if water is used as the heat source me-
dium on the primary side of the intermediate heat ex-
changer and a brine-water mixture is used on its second-
ary side.
Water Water
Must be selected if water is used as the heat source me-
dium on both the primary and secondary sides of the in-
termediate heat exchanger. For the water/water setting
the heat source inlet temperature must be at least 7°C or
higher.
The minimum temperature of the heat source (T-HS min) is set au-
tomatically depending on the medium selected.
page 41, “System setting during commissioning“, “T-HS
min”
NOTE
If no heat source is selected and the query is only answered
by controlling and selecting , “Brine” is automatically set
as the heat source.
A later change of the heat source medium as well as of “T-
HS min” is only possible with customer service access.
If this screen
is displayed, disconnect the heating and heat pump controller
from the mains supply, check the 3-pin cable for the BUS connec-
tion and rectify the fault if necessary.
Finally, the navigation screen appears.
NOTE
With some units, the compressor is rst heated up.
The heating phase until the compressor starts can take
several hours when starting up for the rst time.
With dual air/water heat pumps the ow is monitored
while the pump is running. If the ow is not ok, the heat
pump does not start up and no error is displayed. To this
end, check the ASD input, if it is not set to ON the ow is
too low.
page 14, “Query inputs“
As long as the heat pump has not yet been congured, the “GO”
symbol ashes at the top right of the navigation screen:
By selecting and clicking the symbol “GO”, the startup guide is
called up. The symbol “GO” will disappear as soon as initial com-
missioning is complete.
page 33, “Startup guide“ and page 33, “Startup parame-
ter back“

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We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
Program area “Cooling”
The “cooling” function (with automatic changeover to heating or
cooling mode, depending on requirements) can be used with a
mixing circuit.
To use the cooling function with further mixing circuits, the instal-
lation of the expansion board (accessory subject to a charge) is
necessary.
The program area “Cooling” must be set by authorised service
personnel during commissioning.
Necessary setting:
Mixing circ 1 = Cool
page 20, program aerea “Service”, section “Determining
system setting”, “Mixing circ 1”
ATTENTION
If a cooling circle mixer is connected, it is imperative to ac-
tivate the function “Cooling”, as otherwise malfunctions
will occur in the mixer connected.
ATTENTION
The use of cooling requires that you integrate a dew point
sensor in the system. This must then either be connected
in series with the cooling sensor or used instead of the
bridge, if cooling is provided via the ow cooler.
NOTE
The minimum ow temperature of cooling is factory set to
18°C. This value can be changed in the menu “Determin-
ing temperatures” in the menu item “min. ow cooling”
page 17, program area “Service”, section “Making set-
tings”, “Determining temperatures”
If the cooling function is set, the symbol for the program area
“Cooling” will appear in the navigation screen
SELECT PROGRAM AEREA
Menu eld “mode of operation“
leads to the menu “Cooling mode of operation“
Menu eld “Temperatur + –“
leads to the menu “Cooling Temperature“
Menu eld “Parameter“
leads to the menu “Cooling Parameter“
SETTING THE MODE OF OPERATION “COOLING“
The current mode of operation is highlighted with :
Automatic
Switches the cooling function on dependently of the
outdoor temperature release or based on a xed
temperature (= setpoint temperature)
O
Cooling is generally deactivated.
NOTE
Cooling always comes last in the priority sequence.
Example: If there is a request for domestic hot water prepa-
ration, cooling is interrupted or not enabled.

12 We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
NOTE
Activate the automatic mode only during the summer
months or shut o the cooling during the heating period
by means of a room thermostat.
Otherwise, it is possible that, depending on the location of
the outdoor sensor, the system will switch to cooling if the
outdoor temperature exceeds the set temperature.
NOTE
Automatic mode also means that during the summer
months the system automatically switches to heating
mode or to the operating mode selected in the “Heating”
program area as soon as the outdoor temperatures fall be-
low the set outdoor temperatures.
To ensure that the system does not start heating during
the summer months, the heating mode can be set to “O”.
Part 1 of the controller manual, program area “Heating“, sec-
tion “Setting the operating mode for the heating“
SET TEMPERATURES
Outd.TP release
Required Outdoor Temperature release
Above the set value, cooling is enabled for the duration of
the time set under “Parameters”
Set parameter
set temperature MC1
Required set temperature for cooling in mixing circle 1
The setpoint determines the controlled variable for the con-
trolled cooling mixer if cooling is to take place as a function
of a xed temperature. If cooling release is set as a function
of the outdoor temperature (set. AT), the menu eld “Outd.
T-Dif1”. Then enter a corresponding temperature spread in
Kelvin.
hysteresis cool contr
Menu eld „Hysteresis cool contr“ is shown only with re-
versible air/water-heatpumps.
target return cooling
Menu eld “Target return cooling” is shown only for re-
versible air/water-heatpumps.
SET PARAMETERS
max. outs. temp. (maximum outside temperature)
Cooling starts in the “Automatic” operating mode if the
outdoor temperature is exceeded by 5 K for longer than
the time set under “max. outs. temp.” or once
min. outs. temp. (minimum outside temperature)
Cooling is terminated in the “Automatic” operating mode
if the outdoor temperature falls below the set time for
“min. outs. temp.” for longer than the outdoor temper-
ature
max. room. temp. (maximum room temperature)
This menu eld for controlling cooling according to room
temperature as a function of the outdoor temperature
only appears if a room control unit (RBE) is available in
the system and the corresponding settings have been
made
Operating manual RBE – Room control unit
NOTE
For brine/water- and water/water-heat pumps the cooling
will only be enabled if the brine inlet temperature is >2 °C.

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We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
COOLING BASED ON SET TEMPERATURE OR
DEPENDING ON OUTDOOR TEMPERATURE
The cooling release can take place depending on the outdoor
temperature or after a xed temperature (= set temperature).
Cooling based on set temperature
With the “xed Tp” setting, the ow temperature of the cooling
corresponds to the setpoint temperature of the mixing circuit 1
(MC1):
A Temperature
B Time
1 Outdoor temperature
2 xed Tp ( = set temperature mixing circuit)
Cooling depending on outdoor temperature
With setting “set. AT” set temperatures are ignored. Instead, set
temperatures are automatically calculated based on the outdoor
temperature.
The calculation is made on the basis of the data specied under
“Outd. T-Dif1” in Kelvin, but is limited to a spread of 1K– 10K (ad-
justable in 0.5 steps).
A Temperature
B Time
1 Outdoor temperature
2 Set temperature mixing circiut
3 set. AT (= outdoor temperature dierence)

14 We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
Query Temperatures
The menu is not shown in full here.
Flow Flow temperature heating circle
Target ow Flow setpoint temperature heating circle
Return Return ow temp. of heating circle
Ret. targ. Return setpoint heating circle
Return external Return temp. in separate tank.
Hot gas Hot gas temperature
amb. temp. External temperature
Mean temperature Average temperature
outside over (function heating limit)
Act. service water Domestic hot water actual temperature
upper DHW Temperature in the upper part of the
water tank
Targ. service water Domestic hot water target
temperature
Heats in Heat source inlet temperature
Heats out Heat source outlet temperature
Mixing circle 1 fore. Mixing circle 1
Forward ow temperature
Mixing circle 1 desir. Mixing circle 1
Forward ow set temperature
Cur. room temp. Is displayed if the room control unit
(RBE) is connected
In addition – depending on the unit type of the connected heat
pump – the cooling circuit information provided by sensors in the
cooling circuit appears here.
Query inputs
The menu is not shown in full here.
NOTE
This menu shows whether the digital inputs of the control-
ler are switched on or o.
Defr/Brin/Flow Defrost, Brine pressure, ow
Depending on the device type, the input can full various
functions:
For L/W-devices
Defrost end pressostat:
On = Defrost is terminated.
For LWD, S/W and W/W devices with ow
switch connected at the factory:
On = Flow okay.
For S/W-devices without ow switch
connected at the factory, a brine
pressostat can be connected:
On = brine pressure sucient.
Program area “Service“
NOTE
The menu structure is structured in such a way that param-
eters that are not relevant for the conditions of the system
or the heat pump type are hidden. Some of the parameters
documented in this program area may therefore not ap-
pear on the screen of your heating and heat pump control-
ler or in a sequence other than that specied in these oper-
ating instructions.
Some menus require the screen to be scrolled using the
“rotary pushbutton”.
NOTE
Furthermore, some menu entries and parameters are only
visible and adjustable when the installer or customer ser-
vice access is activated. The various data accesses are iden-
tied by symbols in these operating instructions.
page 2, “Symbols“
NOTE
Some parameters have adjustable value ranges. These can
be found in the appendix.
page 41, “System setting during commissioning“
SELECT PROGRAM AREA
QUERY INFORMATION

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We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
Query elapsed times
The menu is not shown in full here.
Heatpump since Heat pump running since
(Time indication respectively in
hh:mm:ss)
2 hg 1 since Second heat generator 1 running since
2 hg since Second heat generator 2 running since
Switch on Net input delay
Swi c time O-time switching cycle
Read-CPd Compressor Read-CPd
HC Add-time Heating control more time
HC Less-time Heating time less time
ThDsin.sin Thermal disinfection running since
Stop SW O-time domestic hot water
release 2hg Release of second heat generators
Defrosting Time until the next defrosting (LW)
Query operating hours
The menu is not shown in full here.
Op. h. comp1 Operation hours compressor 1
Impulses comp. 1 Impulses compressor 1
Duration comp. 1 average duration compressor 1
Op. h. comp2 Operation hours compressor 2
Impulses comp. 2 Impulses compressor 2
Duration comp. 2 average duration compressor 2
Operation hours 2hg1 Operation hours second heat
generator 1
Operation hours 2hg2 Operation hours second heat
generator 2
Operation hours hp Operation hours Heat pump
Operation hours heat Operation hours Heating
Operation hours hw Operation hours domestic hot water
Operation hours cool Operation hours Cooling
NOTE
The compressors are only energised alternately follow-
ing the impulses. A variation in the operation hours of the
compressors is, therefore, possible.
SW-therm. switch Domestic hot water thermostat
On = Domestic hot water requirement
Electr. suppl. O-time of the electrical supply
O = O-time
High pressure High-pressure pressostat
O = Pressure okay
Motor protect. Motor protection
On = Motor protection okay.
Low pressure Low pressure pressostat
On = Pressure okay.
PEX Connection of an external current
anode
(possible for some devices)
Analog In Input analog
Query outputs
The menu is not shown in full here.
dv-defrost. valve Valve / Circuit reversal
ON = Thaw mode or rather cycle
reversal becomes active
DHW pump Domestic hot water circulation pump
Floor heat. pump 1 Floor heating circulation pump
Heat. sys. pump Heating circulation pump
Mixer 1 Open Mixer 1 opens
On = opens / O = no control
Mixer 1 Close Mixer 1 Close
On = closes / O = no control
Ventilation Ventilation of the heat pump housing
for certain L/W devices.
For L/W size types (coding “L2G”),
second stage of the ventilator
Fan-heats. pump Ventilator, well or brine circulation
pump
Compressor 1 Compressor 1 in heat pump
Compressor 2 Compressor 2 in heat pump
CP Circulation pump
Suppl. pump Additional circulating pump
2nd heat gen. 1 Second heat generator 1
2nd heat gen. 2 Second heat generator 2– Collective
fault (function collective fault:
Continuous ON in the event of a fault,
cycles 1x per second with automatic
RESET enabled)
Control signal UWP Circulation pump output in %
RPM Ventilator Current speed of the heat pump’s fan
RPM Compressor Current speed of the heat pump’
compressor

16 We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
Calling up the machine status
The menu is not shown in full here.
Type of heat pump Type of heat pump
Software version of the heating and heat pump
regulator
Bivalent level Bivalent level:
1 = a compressor may operate
2 = two compressors may operate
3 = additional heat generator may
operate as well
Operation mode Current operation mode:
Heating
Domestic hot water
Defros
Only for output-controlled heat pump:
Current capacity Heating output currently provided by
the output-controlled compressor.
This heating output can be used to set
the overow valve in a storage tank
integrated in series according to the
setting diagram in the unit instructions.
Capacity demand Required output for output-controlled
compressor controlled by the heating
and heat pump controller.
Software version SEC Current software version of the inverter
controller of the output-controlled heat
pump
Heat quantity
Many heat pump types are equipped with heat quantity record-
ing by pressure sensors in the cooling circuit of the heat pump. In
these heat pumps the heat quantity can be read out directly – for
all other units in the Luxtronik 2.0 series the external heat quantity
meter can be retrotted (accessory).
The menu is not shown in full here.
Heating Recorded heat quantity for heating in
kWh
Domestic hot water Recorded heat quantity for hot water in
kWh
Total Sum of the recorded heat quantities in
kWh
Since: Date of the last recording. (here by way
of example).
Go to and click the date to reset the heat quantity recording to ze-
ro. In this way the heat quantity can be recorded for a period de-
ned by you (start date = displayed date).
Calling up error memories
728
Error code (here by way of example)
16.10.19
Date of the resulting error (here by way of example)
13:28
Time of the error that occurred
Meaning of the error codes: page 35
NOTE
Maximum the last ve resulting errors are displayed.
Calling up disconnections
16.10.19
Date of the disconnection (here by way of example)
13:53
Time of the disconnection (here by way of example)
El. Sup. bl
Disconnection code (here by way of example)
Error hp heat pump fault
err.inst. system fault
m.o. 2hg mode of operation second heat
generator
El. Sup. bl el. sup. blockade
Defr. air. air defrost (only L/W devices)
TPLmax temperature limits maximum of
application
TPLmin temperature limits minimum of
application
Low lim lower limit of application
no requ. no request
NOTE
Maximum the last ve disconnections are displayed.

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NOTE
The manufacturer is not liable for damage resulting from
wrong program settings not oriented towards the system
components.
Calling up short programs
Part 1 of the controller maunual, program area “Service“, sec-
tion “Calling up short programs“.
Determining temperatures
The menu is not shown in full here.
Limit Return Return limit
Setting the maximum return setpoint temperatures in
heating mode.
X External temperature
Y Return temperature
A Heating curve-end point
B Return limit (in the example shown: 40°C)
Hysteresis HC setting for the control hysteresis of the
heating regulator
Set a greater hysteresis for very reactive
heating systems, and a lower hysteresis
for less reactive heating systems.
Example: Hysteresis heating circle
return = 2K
A There will be no request for heating in this
temperature range
NOTE
If applicable, after displaying the recorded heat quantity
for hot water, the recorded heat quantity for swimming
pool is displayed.
MAKING SETTINGS
Determine data access
Enter numbersn
entry elds of the four digits numerical code:
Activate the rst entry eld of the numerical code by
pressing the “turn-push button“.
Set the rst digit by turning the “turn-push button“ and
conrm the entry by pressing the button.
Move to the respective next entry eld and repeat the
steps described above.
Finally, move to “ “ and save the entries by pressing
the “turn-push button“.
The entry elds are automatically set to 0000. The cursor
goes automatically to the navigation arrow. The program
provides information in the menu line “Access” on the se-
lected status of the data access.
Datea access
Information on the current status of the data access
(here: user)
ATTENTION
Incorrect program settings that are not aligned to the sys-
tem components can cause malfunctions or even serious
damage to the system. Access to basic system settings
must therefore be blocked for unauthorized persons.
After service work, it is essential to reset the data access to
“User” (enter and save number code 0000).

18 We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
T-outd. max maximum external temperature
Setting for the maximum external temperature from which
the heat pump is locked.
Second heat generators are released as required.
T-outd. min minimum external temperature
Setting for the minimum external temperature under which
the heat pump is locked.
Second heat generators are released as required.
T-HS min Minimum heat source temperature
Setting for the minimum permissible temperature at the heat
source outow of the heat pump.
for S/W devices:
With AS access, a value above -9 °C can be set
(necessary for integration with intermediate
exchangers) for S/W devices
for W/W devices
The setting is only available with manufacturer
access.
min HSI ow max minimum heat source inlet
temperature at maximum ow rate
T-HG max maximum hot gas temperature
Setting for the maximum permissible temperature in the
cooling circle of the heat pump.
T-def.airend Temperature air defrost end
A value is only displayed for L/W devices and if the air defrost
is switched on.
Setting for the temperature at which the air defrosting is
terminated at the outlet of the evaporator.
page 40, “Overview: Defrost cycle, Air defrost, Flow Max“
Lowering to Maximum lowering
Setting for the external temperature up to which a night
lowering is carried out.
If the actual external temperature falls below the set value,
the lowering temperature is ignored.
Flow Max. Maximum ow temperature
If this temperature is exceeded in the ow, a compressor of
the heat pump is switched o. This applies to all supply types!
page 40
Flow max. MK1 Maximum ow temperature mixing
circuit 1
min. AT Flow max. Heat source temperature-dependent
adjustment of the ow temperature.
The outside temperature, up to which the ow max.
temperature with the heat pump may be increased, is
adjusted here.
Below this outside temperature, the actual VL maximum
temperature of the heat pump will fall linearally to the value
“Forward ow EG“.
low limit of applic. Heat source temperature-dependent
adjustment of the ow temperature.
Here, the maximum forward ow temperature of the heat
pump is set at an outside temperature of -20°C.
B There will be a request for heating in this
temperature range
C Hysteresis
D Neutral zone
E Return setpoint temperature
hysteres.SW Hysteresis of domestic hot water
Setting for the control hysteresis for the domestic hot water
preparation (negative hysteresis).
A There will be no request for domestic hot water
preparation in this temperature range
B There will be a request for domestic hot water
preparation in this temperature range
C Domestic hot water target
D negative hysteresis
RT incr.max Return increase maximum
Setting for the maximum permissible overshoots of the return
temperature. If the return temperature is overshot, internal
minimum running times are ignored and all heat generators
switched o. Always set value higher than the value of the
hysteresis HC.
Release 2 CP Release 2nd compresso
A value is only displayed for devices with two compressors.
Setting of the minimum external temperature from which the
second compressor can be released in heating mode. Above
the set external temperature, the second compressor remains
locked in heating mode
Release 2hg Release second heat generator
Setting for the external temperature from which the second heat
generator can be released if required. Above the set external
temperature, the second heat generators remain locked.
Exception:
In the event of a fault and the setting fault with a 2 hg, the
second heat generators are released independently of the set
external temperature.
Tp-defr.Air. Temperature air defrost
Setting for the release temperature for the air defrost. Below
the set temperature, the air defrosting is locked.
ATTENTION
Set air defrost only if device type is approved for air de-
frost.
TVth.disinf2 TDI setpoint temperature
Setting for the setpoint temperature for the thermal
disinfection in the domestic hot water preparation.
Flow 2. CP DHW Flow 2nd compressor
Domestic hot water
Is only displayed for devices with 2 compressors.
Setting for the ow temperature from which domestic hot
water is prepared with a compressor.
Optimisation of the charging time and the attainable
domestic hot water temperatures.

19
We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
min. ow cooling 2CP Minimum ow temperature cooling
2nd compressor
If the temperature at the cooling sensor falls below this
temperature (depending on integration TB1, TB2 or TRL), the
cooling is interrupted (factory setting 18 °C). At the same time,
the displayed value is the minimum value for settable cooling
setpoint temperatures.
Scroll all the way down,
cancel or save the settings.
Hot gas utilisation / desuperheater
(only LWP)
Higher temperatures of up to 75°C are available with hot gas utili-
sation. The temperature is not always guaranteed. The heat pump
must already be in operation due to another requirement.
The heat pump will switch o with a desuperheater temperature
of 80°C.
The recirculation pump will be actuated every 30 minutes for 30
seconds with a hot gas temperature higher than 85°C
CAUTION
Injuries caused by hot temperatures!
Very high temperatures can occur on the desuperheat-
er and the pipework for the hot gas utilisation when the
hot gas utilisation is in operation. Any contact can lead
to burns. Never touch the desuperheater or pipework
when in operation or afterwards
The hot gas utilisation is set to “Yes” as default.
If the desuperheater is selected in the FlexCong menu (page
27, “FlexCong“), the temperature can be preset.
Here you can y the temperature of the desuperheater
from 30°C to 75°C.
If no hot gas usage is to be used, the desuperheater must be de-
selected in the FlexCong menu.
For further details, see point “min. AT VL max.” and the
following diagrams:
VL
AT
-20°C min. AT Flow max.
Flow max.
low limit of applic.
VL = Forward ow
AT = outside temperature
hysteresis cool.contr Hysteresis cooling circuit
Standard value for reversible air/water heat pumps: 3K
Standard value for brine/water heat pumps: 2K
Max. DHW temp. Maximum Hot Water temperature
A value, which is set to limit the maximum set temperature of
the hot water.
min.systemtemp.
Minimum return set-point temperature
Will not be exceeded in operation.
Defrost end temperature
Minimum MK1 ow Minimum ow temperature
Will not be exceeded in operation.
Flow max. MK1 Maximum ow temperature following
the charger mixer
Is only displayed if mixing circle 1 is set to charger mixer.
The forward ow sensor at TB1 will then be used to limit the
ow temperature following the mixer. This means: if the TB1
exceeds the value set here, the charger mixer will be moved
in >Closed< direction.
Hysteresis 2.CP short Hysteresis heating control 2nd compr.
Shorten HR hysteresis. HR. Hysteresis heating regulator
from which the cut-in time of the 2nd. compressor stage is
shortened (See “System setting”).
Cutting-in compressor 2:
A No cut-in
B Shortened cut-in
C Return ow set value
D Heat regulator hysteresis
E Hysteresis HR shortened
desuperheater max. Maximal temperatur desuperheater
Min. ow cooling Minimum ow temperature cooling
If the temperature at the cooling sensor falls below this
temperature (depending on integration TB1, TB2 or TRL), the
cooling is interrupted (factory setting 18 °C). At the same
time, the displayed value is the minimum value for settable
cooling setpoint temperatures.

20 We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
Mixing circ 1 Mixing circle 1
Setting the functioning of the mixer control
Charge Do not set for output controlled
heatpumps.
Mixer serves as charger mixer, possibly
for a boiler
A Boiler
B Heat pump
TB1 sensor ow
Discharge Mixer serves as a control mixer,
possibly for oor heating
TB1 sensor ow
Cool Activates cooling function.
If a mixer is available, it then serves as
a control mixer for cooling function
No Mixer without function
NOTE
For reversible air/water heatpumpthe cooling is controlled
via the return sensor.
Error Error
no 2hg in the event of a fault in the heat pump,
connected 2 hgs are only energised
if the return temperature < 15 °C
(antifreeze); (only heating)
Heating
DHW Domestic hot water
with 2hg in the event of a fault in the heat
pump, connected 2 hgs are energised
according to requirements (HW +
DHW)
Service water 1 Domestic Hot Water 1
sensor Domestic hot water preparation is
initiated or terminated via a sensor
with hysteresis (factory setting: 2K) on
the domestic hot water tank
Thermal Domestic hot water is initiated or
terminated via a thermostat on
the domestic hot water tank. No
temperatures can be set in the
controller
Determining priorities
Part 1 of the controller manual, program area “Service“, sec-
tion “Determining priorities“.
Determining system setting
The menu is not shown in full here.
ATTENTION
Incorrect settings not oriented towards the system compo-
nents put the safety and functional capability of the sys-
tem at risk and can lead to damage.
NOTE
Enter deviations from the relevant factory settings in the
overview “System setting for the commissioning”.
page 41, “System setting during commissioning“
El. sup. blockade Electrical supply o-times
no 2hg 2hg at electrical supply o-time also
locked
with 2hg 2hg released for electrical supply
Setting only takes eect as 2 hg for
boiler or thermal.
Roomstat. Roomstation)
No No roomstation connected
RBE RBE room control unit (purchasable
accessories) connected
Smart Smart-individual room control (kjøpes
tilbehør) angeschlossen
Integration Hydraulic Integration
Setting the hydraulic integration of the buer tank
Return hydraulic integration with row tank
(ow/return)
Sep. tank hydraulic integration with parallel tank
(multifunction tank, …)
NOTE
External return ow sensor (TRLext) required for “Sep.
tank” setting.