alphainnoTec LWC Series User manual

We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
Translation of the original instruction manual
HEAT PUMPS
Operating Manual
Compact
AIR/WATER
UK
LWC Series

2We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
Please read first
This operating manual provides important information
on handling 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 operators of the
unit.
Read the operating manual before working on or
operating the unit. This applies in particular to the
chapter on safety. Always follow 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.
Since this operating manual was written for several
different models of the unit, always comply with the
parameters for the respective model.
This operating manual is intended only for persons
assigned to work on or operate the unit. Treat all
constituent parts confidentially. The information
contained herein is protected by copyright. No part
of this information may be reproduced, transmitted,
copied, stored in electronic data systems or translated
into another language, either wholly or in part, without
the express written permission of the manufacturer.
Symbols
The following symbols are used in the operating manual.
They have the following meaning:
Information for operators.
Information or instructions for qualified
technicians.
DANGER!
Indicates a direct impending danger
resulting in severe injuries or death.
WARNING!
Indicates a possibly dangerous situation
that could result in severe injuries or
death.
CAUTION!
Indicates a possibly dangerous situation
that could result in medium or light
injuries.
CAUTION.
Indicates a possibly dangerous situation,
which could result in property damage.
NOTICE.
Emphasized information.
€ENERGY SAVING TIP
Indicates suggestions that help to save
energy, raw materials and costs.
Reference to other sections of the operating
manual.
Reference to other documents of the
manufacturer.

3
Contents
INFORMATION FOR OPERATORS AND
QUALIFIED SPECIALISTS
PLEASE READ FIRST..................................................................2
SYMBOLS .....................................................................................2
INTENDED USE..........................................................................4
EXCLUSION OF LIABILITY......................................................4
EC CONFORMITY .....................................................................4
SAFETY.........................................................................................4
CUSTOMER SERVICE ................................................................5
WARRANTY / GUARANTEE...................................................5
DISPOSAL ....................................................................................5
INFORMATION FOR OPERATORS
FUNCTIONING PRINCIPLE OF HEAT PUMP SYSTEM........6
AREA OF UTILIZATION...........................................................6
HEAT QUANTITY RECORDING............................................6
OPERATION ................................................................................6
CARE OF THE UNIT..................................................................7
MAINTENANCE OF THE UNIT...............................................7
Cleaning and rinsing of unit components..........................7
MALFUNCTIONS.......................................................................7
INSTRUCTIONS FOR QUALIFIED TECHNICIANS
SCOPE OF DELIVERY......................................................8
INSTALL ATION ..........................................................................8
Installation location..............................................................9
Transport to installation location......................................9
Installation............................................................................10
INSTALLATION OF THE VENTILATION DUCT...............11
Converting from air blower
on the right to air blower on the left .......................11
The air duct system 700 (accessory)...............................13
Product advantages.............................................................14
Wall duct(s) assembly.........................................................14
Air ducts assembly..............................................................15
Securing the air duct into the wall duct..........................15
Securing the air duct on the heat pump..........................16
Screen frame assembly.......................................................16
Wire mesh grille and weather/rain guards assembly ....17
INSTALLATION / CONNECTION
TO HEATING CIRCUIT ....................................................18
Manometer...........................................................................19
Discharge hot water safety valve and condensate
discharge ........................................................................19
HOT-WATER TANK.................................................................20
ELECTRICAL CONNECTIONS .............................................20
RINSING, FILLING AND BLEEDING THE SYSTEM ..........22
INSULATING THE HYDRAULIC CONNECTIONS ..........25
OVERFLOW VALVE..................................................................25
Inspecting and setting up the overflow valve.................25
INSTALLATION OF THE CONTROL ELEMENT ...............26
INSTALLATION AND REMOVAL OF THE SCREEN.........27
COMMISSIONING ...................................................................28
Safety temperature limiter................................................29
DISMANTLING .........................................................................29
TECHNICAL DATA / SCOPE OF DELIVERY ........................30
PERFORMANCE CURVES
Heating capacity/COP / power consumption /
Free compression, heating circuit
LWC 60.................................................................................32
LWC 80.................................................................................33
LWC 100 ..............................................................................34
LWC 120...............................................................................35
DIMENSIONAL DRAWINGS .................................................36
INSTALLATION PLANS
Installation plan version 1 .................................................37
Installation plan version 2 .................................................38
Installation plan version 3 .................................................39
Installation plan version 4 ................................................ 40
Installation plan version 5 .................................................41
Installation plan version 6 .................................................42
TERMINAL DIAGRAM.............................................................43
CIRCUIT DIAGRAMS
LWC 60 – LWC 80 ............................................................ 44
LWC 100 – LWC 120 .........................................................47
APPENDIX
EC DECLARATION OF CONFORMITY..............................50
GENERAL CHECKLIST ...........................................................51
COMPLETION REPORT FOR HEAT PUMP SYSTEMS ......53
CUSTOMER SERVICE
Addresses in the event of a service call..........................54
We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH

4We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
Intended use
The unit may be used only for the intended purpose.
This means:
•for heating.
•for heating hot water.
The unit may be operated only within its technical
parameters.
Overview “Technical data /scope of delivery”.
NOTICE.
Notify the responsible power supply
company of the use of a heat pump or heat
pump system.
Exclusion of liability
The manufacturer will not be liable for damage resulting
from unauthorized use of the unit.
The manufacturer’s liability will also be voided in the
following cases:
•if work is performed on the unit and its
components in a manner that does not comply
with the terms of this operating manual;
•if work is performed on the unit and its
components in an improper manner;
•if work is performed on the unit that is not
described in this operating manual, and this work
was not expressly approved in writing by the
manufacturer;
•if the unit or components in the unit are modified,
redesigned or removed without the express
written permission of the manufacturer.
EC conformity
The unit bears the CE mark of conformity.
EC declaration of conformity
Safety
The unit is operationally safe when used for the intended
purpose. The construction and design of the unit
conform to the state of the art, all relevant DIN/VDE
regulations and all relevant safety regulations.
Every person who performs work on the unit must
have read and understood the operating manual prior
to starting any work. This also applies if the respective
person has already worked with such a unit or a similar
unit or has been trained by the manufacturer.
Every person who performs work on the unit must
comply with the applicable accident prevention and
safety regulations. This applies in particular to the
wearing of personal safety gear.
DANGER!
Unit operates under high electric voltage!
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!
DANGER!
Only qualied technicians (trained heating,
cooling, refrigerant and electrical techni-
cians) may perform work on the unit and
its components.
WARNING!
Observe safety labels on and in the unit.
WARNING!
Unit contains refrigerants!
Leaking refrigerant could result in
personal injury or material damage.
Therefore:
– Shut down unit.
– Notify the manufacturer’s authorized
service center.
CAUTION.
For safety reasons:
Never disconnect the unit from the power
supply, unless the unit is being opened.

5
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UK830504/210627 © Alpha-InnoTec GmbH
CAUTION.
Install the heat pump only indoors and
operate only with outside air as the heat
source. The air ducts must discharge into
the open air. Do not restrict or block the
air ducts.
Dimensional drawing and installation plan for
respective model.
WARNING!
Switch on unit only if air ducts are
mounted on the unit.
Take measures on the fan side to prevent
injuries from the rotating fan (above-
ground air duct discharge: below-ground
air-channel discharge: wire mesh grille
– accessories not included in scope of
delivery).
CAUTION!
The integration of the heat pump in
ventilation systems is not permissible. The
use of the cooled air for cooling purposes
is not permitted.
CAUTION!
The ambient air in the location where the
heating pump is installed and also the in-
take air which is used as a source of heat
must not contain any kind of corrosive
components!
Components such as ammonia, sulphur,
chlorine, salt, sewer gas, ue gases etc.
may cause damage leading to complete
failure or even a total write-off of the
heating pump!
CAUTION!
In the air outlet area the air temperature
is ca. 5 K below the ambient temperature.
Under certain climatic conditions,
therefore, an ice layer can form in the
air outlet area. Install the heat pump so
that the air blower does not blow in the
direction of footpaths.
Customer service
For technical assistance, please contact your qualified
technician or the manufacturer's local service partner.
Overview “Customer service”.
Warranty / Guarantee
For warranty and guarantee conditions, please refer to
the purchase documents.
NOTICE.
Please contact your dealer concerning
warranties and guarantees.
Disposal
When decommissioning the unit, always comply with
applicable laws, directives and standards for therecovery,
recycling and disposal of materials and components of
cooling units.
Dismantling.

6We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
Functioning principle
of heat pump system
Heat pumps operate on the principle of a refrigerator:
the same technology, only with the opposite effect. The
refrigerator extracts heat from foods, which is released
into the room through fins on the back.
The heat pump extracts heat from our environment:
air, earth or ground water. The extracted heat is
conditioned in the unit and supplied to the heating water.
Even when it is extremely cold outside, the heat pump
draws enough heat to heat a house.
Example: drawing of a brine/water heat pump with floor
heating:
4⁄4= usable energy
ca. 3⁄4= environmental energy
ca. 1⁄4= external electrical energy
Area of utilization
Taking into consideration the ambient conditions, limits
of application and the applicable regulations, every heat
pump can be utilized in new or existing heating systems.
Overview “Technical data /scope of delivery”.
Heat quantity recording
In addition to the proof of the unit's efficiency, EEWaer-
meGalso meets the demand for a heat quantity record-
ing (hereafter refered to as HQR). The HQR is mandato-
ry with air/water heat pumps. With brine/ water and wa-
ter/water heat pumps, a HQR may only be set up when
a forward flow temperature of ≥ 35 °C has been reached.
The HQR must record the total warm energy release
(heating and hot water) in the building. In heat pumps
with heat quantity recording, the analysis is conducted
by the regulator. The regulator displays the thermal en-
ergy that is exchanged from the heating system in kWh.
NOTICE.
Variant models are available, either with
or without heat quantity recording.
Operation
Your decision to purchase a heat pump or a heat pump
system is a long-term contribution to protecting the
environment through low emissions and reduced primary
energy use.
You can operate and control the heat pump system
with the control element of the heating and heat pump
regulator.
NOTICE.
Make sure that the control settings are
correct.
Operating manual of the heating and heat pump
regulator.
To ensure that your heat pump or heat pump system
operates efficiently and ecologically, the following are
especially important:
€ENERGY SAVING TIP
Avoid unnecessarily high ow tempera-
tures.
A lower ow temperature on the hot water
side increases the efciency of the system.
€ENERGY SAVING TIP
When letting in fresh air, do not leave
windows open for an extended period,
thus saving energy and reducing your
heating costs.

7
We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
Care of the unit
The outer surfaces of the unit can be cleaned with a
damp cloth and household cleaning products.
Do not use cleaning or care products that contain
abrasives, acids and/or chlorine. Such products would
destroy the surfaces and could also damage the technical
components of the unit.
Maintenance of the unit
According to EU regulation (EC) 842/2006 of May 17,
2006, leak inspections and maintenance of a log book
are required by law for certain heat pumps!
The criteria for conducting leak inspections and
maintaining a log book are based on the hermetic
impermeability of the cooling circuit and the refrigerant
capacity of the heat pump! No log book is required for
heat pumps with a refrigerant capacity of < 3kg. With all
other heat pumps, the log book is included with all other
delivered materials.
Log book for heat pumps, Section “Information
on use of the log book”.
The components of the heating circuit and the heat
source (valves, expansion vessels, circulating pumps,
filters, dirt traps) should be inspected as well as cleaned
as needed - at the very least annually - by a qualified
heating or cooling system technician.
CAUTION.
Check regularly to ensure that the
condensate can drain out of the unit
unobstructed. To this end, regularly check
the condensate pan in the unit and the
condensate drain to ensure that they are
clean / free from obstructions and clean as
needed.
It is a good idea to have a maintenance contract with
a specialist company. The company will conduct the
required maintenance at regular intervals.
CleaningandrinsingofunitComponents
CAUTION!
Unit components may be cleaned and
rinsed only by customer service personnel
authorized by the manufacturer. Use
only liquids recommended by the
manufacturer.
Rinsing of the liqueer with chemical
cleaning agents must be followed by
neutralization of residue and intensive
rinsing with water. Always observe the
technical data of the manufacturer of the
heat exchanger.
Malfunctions
In the event of a malfunction, you can detect the cause of
the malfunction via the diagnostic program of the heating
and heat pump regulator.
Operating manual for the heating and heat pump
regulator.
DANGER!
Service and repair work on the components
of the unit may be performed only by
customer service personnel authorized by
the manufacturer.
Overview “Customer service”.
Note that no malfunction is displayed if the safety
temperature limiter on the electric heating element has
been triggered (depending on model).
“Commissioning”, “Safety temperature limiter”
section.

8We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
Scope of delivery
Example of scope of delivery:
Compact unit with
• completelyhermeticallyenclosed
compressor, all safety-related
components for monitoring
of the cooling circuit
• electricswitchcabinetwithpower
contactor and soft starter
• sensorsmountedintheunit
for monitoring hot gas-,
heating water forward flow and
return flow temperatures
• hoseforcondensatedischarge
(connected to heat pump side)
• drainagehoseforsafetyvalve
(connected to heat pump side)
• Outdoor sensor
• Changeovervalve
domestic hot water
• withvariantmodelsthathave
heat quanity recording:
with energy efficient circulating
pumps, heat quantity recording
and Ventilation circuit board
(LWC60 and LWC80) or Comfort
board (LWC100 and LWC120)
For the scope of delivery, see Overview
“Technical data / scope of delivery”.
Proceed as follows:
Inspect delivery for outwardly visible signs of
damage.
Check to make sure that delivery is complete…
Any defects or incorrect deliveries must be claimed
immediately.
Overview “Technical data / scope of delivery”.
aCCessoriesneCessaryforoperation
CAUTION.
Use only original accessories from the
manufacturer of the unit.
Air ducts (with air duct accessories) must be ordered
separately.
Installation
Observe the following when performing work:
NOTICE.
Always comply with applicable accident
prevention regulations, statutory regula-
tions, ordinances and directives.
WARNING!
The heat pump or heat pump system
may be installed and assembled only by a
qualied technician!
NOTICE.
Observe the sound levels of the respective
model.
Overview “Technical data /scope of delivery”,
“Sound” section.

9
We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
installationloCation
CAUTION.
Install the unit only indoors.
The installation area must be frost-free and dry. It must
meet the requirements of DIN EN 378. It must also fulfill
applicable local regulations.
Dimensional drawing and installation plan for
respective model.
transporttoinstallationloCation
Always comply with the following safety information
during transport:
DANGER!
Several people are required to transport
the unit. Do not underestimate the weight
of the unit.
Overview “Technical data / scope of delivery”,
“General unit data” section.
DANGER!
The unit can tip when being removed from
the wooden pallet and during transport.
This can result in personal injury and
damage to the unit.
– Take suitable precautionary measures
to eliminate the danger of tipping.
DANGER!
Make sure to secure unit against slipping
during transport.
CAUTION.
Never use components and hydraulic
connections on the unit for purposes of
transport.
CAUTION.
Do not damage the hydraulic connections
under any circumstances.
CAUTION.
Do not tilt the unit more than a maximum
of 45° (in any direction).
To avoid damage during transport, you should transport
the unit to the final installation location in its original
packaging (with packaging on the wooden pallet), using
a lifting truck.
If it is not possible to transport the unit to the final
installation location using a lifting truck, you can also
transport the heat pump using a hand truck.
transportwithahandtruCk
In order to reduce the weight of the unit for additional
transportation, we recommend using a hand truck to
remove the lower side walls and the lower front wall
prior to moving.
Proceed as follows:
Remove packaging and set extra box aside (will be
needed later on!)…
Lift unit from pallet.
Remove lower side panels and bottom front panel
of the unit…
•
To do so, loosen the quick-release screws. Turn
counter-clockwise 90°.

10 We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
•
Lift side panels and set aside in a safe place…
Push hand truck under the unit (= rear side of unit).
Alpha InnoTec GmbH EPP-Isolationshülle 31.01.2008
CAUTION.
If the hand truck is pushed under the unit
on the back side of the unit, make sure
not to damage any connections during
transport.
CAUTION.
Transport with a hand truck on the front
side of the unit is not permitted.
installation
DANGER!
Several people are required to install the
unit.
CAUTION.
Do not tilt the unit more than a maximum
of 45° (in any direction).
NOTICE.
Always observe the installation plan for
the respective model. Note the size and
minimum clearances.
Installation plan for respective model.
Set up the unit so that the switch cabinet side
(=operating side) is accessible at all times.
Proceed as follows:
If you have not already done so, remove angle
bracket, transport and packaging material from the
unit. Set the extra box to the side and lift the unit
from the wooden pallet…
“Transport with a hand truck”.
Dispose of angle bracket, transport and packaging
material properly and in accordance with ecological
principles…
Set unit on a stable, solid and level, preferably sound-
insulated surface. Make sure that the foundation is
designed for the weight of the heat pump…
Overview “Technical data/scope of delivery”,
“General unit data” section.
Mount feet…
CAUTION.
Moving the unit without the feet mounted
can damage the oor.
•
Tip the unit slowly and carefully to one side…
Secure unit in raised position so that it cannot
accidentally tip back into the original position.

11
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UK830504/210627 © Alpha-InnoTec GmbH
Installation of the
ventilation duct
Convertingfromairblowerontherightto
airblowerontheleft
NOTICE.
Note the air blow-out direction of the
unit.
– By default, the units ship with the air
blower on the right hand side.
Remove top front panel and set it aside on the floor.
While doing so, rotate the front panel by 180° to
protect the capillary…
“Manometer”.
CAUTION.
Pay attention to the manometer capillary.
Remove the side panel on the top left and right by
unscrewing the 2 screws on each side…
CAUTION!
Hands and ngers could be crushed during
the following tasks!
•
Mount one foot each on the front and back of the
unit…
1 Foot
2 Lock nut
3 Adjusting screw
•
Slowly and carefully tip the unit back into the
original position…
•
Repeat procedure on the other side of the unit.
Place unit at final installation location.
Compensate for minor unevenness using the four
adjusting screws and align the unit horizontally.
Then tighten the lock nuts.

12 We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
Slightly turn both side panels to the side and remove
the side panel by pushing it to the back…
Remove the sensor head from the bracket on the
left and let the wires dangle…
Pull out the insulation panels on the left and right
by pulling at the marked points (abrupt, jerky
movements facilitate the process)…
Proceed by carefully routing the sensor wire
through the insulation panel on the left…
Seal the hole you created using the dummy plug
included in the extra box…
NOTICE.
If necessary, you can xate the EPP
insulation using a hot-melt glue gun or
solvent-free adhesive.
The sensor must always be installed on
the side facing away from the duct.
Flip over the two components on the right and
arrange them on the left, while flipping over the two
components on the left and arranging them on the
right. Slide the sensor including the wire through
the pre-punched hole on the right after punching
through the hole with a screwdriver…
Clamp the sensor head into the bracket on the
right…

13
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UK830504/210627 © Alpha-InnoTec GmbH
Route the sensor wire to the switch cabinet across
the two cable brackets and the transverse rail with
the mounting holes…
Proceed in reverse order when installing the
insulation panels and the top side panels. While
doing so, always attach the insulation panel at
the bottom first before using your open hand to
gradually press or pound the panel into place from
the bottom to the top. To facilitate the process,
you can spray on a thin film of soapy water for
lubrication…
CAUTION.
The lugs on the insulation panels must
snap into place in the designated areas.
Lug:
Snap-in area at the bottom
Snap-in area at the top
theairduCtsystem700(aCCessory)
The air duct system 700 is a complete kit solution for
routing the air flow from the heat pump to the outside
of the house
The kit includes:
1 the wall duct
2 air ducts
3 unit connection (set)
4 weather grille and rain guard
5 screen frames
Example drawing of a mounted air duct system:
The air ducts and the wall duct are manufactured from
sturdy materials. The air ducts and the wall duct are
comprised of multiple parts and are interlocking. They
will be delivered in a flat box and are constructed on-
site.
If necessary, they are available in lengths of 450 mm or
1000 mm as well as in angled elbow form.

14 We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
produCtadvantages
•complete, optimised system (including wall duct)
•highly sound-absorbant
•light and, therefore, easy to transport
•easily interlocking and, therefore, easy to
assemble
•high-quality design
wallduCt(s)assembly
Proceed as follows:
Remove the parts necessary for the assembly of the
wall duct(s) from their respective boxes…
Next, interlock the 2 pieces of the wall duct(s)
that belong together, as illustrated in the following
drawing. Use the lubricant supplied upon delivery
to help in this process…
Affix an additional part as illustrated…
Rotate the already-interlocked parts 90° and affix
the final piece at the bottom…
Rotate the already-interlocked parts by 90° once
again and set up the final connection…
Stabilise the wall duct from the inside using the
chipboard included with delivery…

15
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UK830504/210627 © Alpha-InnoTec GmbH
Insert the wall duct into the masonry. This can be
done during the structural construction phase (by
means of sealing)…
NOTICE.
Mount the wall ducts 1 cm above the
nished outer facade.
1 Masonry of the house exterior
2 Insert the wall duct in the
masonry (1 cm above the
finished outer facade)
or retrofit (using foam in the masonry):
1 Finished outer facade
NOTICE.
Wall ducts x wall openings, help avoid
cold air transmission in the masonry as
well as assist in the assembly of weather /
rain guards and wire mesh grilles
airduCtsassembly
Proceed as follows:
Remove the parts necessary for the assembly of the
air duct(s) from their respective boxes…
The interlocking of the air ducts is carried out
as described in the section – entitled “Wall
duct(s) assembly”.
seCuringtheairduCtintothewallduCt
Proceed as follows:
Pull the roll seal included with delivery over the end
of the air duct…
Push this end of the air duct into the wall duct.
1 wall duct
2 air duct
3 roll seal
4 betonite waterstop tape (attach
only after assembling the
unit's connection fastener)

16 We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
NOTICE.
Don't forget:
After the air ducts have been secured to
the heat pump, close the opening between
the wall duct and the air duct using the
betonite waterstop tape included with
delivery.
NOTICE.
Secure the air ducts to the cover using
appropriate measures.
sCreenframeassembly
Screw the screen frame to the wall ducts on both the air
intake and output sides.
NOTICE.
The screen frame serves no technical
purpose; it is present solely to create a
seamless transition to the wall duct.
NOTICE.
After the other end of the air duct has
been secured to the heat pump, close the
opening between the wall duct and the air
duct using the betonite waterstop tape
included with delivery.
seCuringtheairduCtontheheatpump
Proceed as follows:
Clip on the assembly rail and secure it using special
screws to the spot on the air duct designated as the
air intake side…
Stick the adapter base included with delivery on the
edge of the air duct…
Position the air duct on the respective opening of
the air intake side…
Hook the tension springs included with delivery
into the holes provided for them on the air intake
side of heat pump 4…
Hook the tension springs into the assembly tail that
has been screwed on to the air duct…
Secure a protective cap over the assembly rail…
Repeat – the process on the air output side.

17
We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
8 x
NOTICE.
If the wall duct is positioned above ground
level, attach the weather guard.
If the wall duct is positioned in a light
well (below ground level), attach the rain
guard.
Repeat – the process on the air output side.
wiremeshgrilleandweather/rainguards
assembly
Proceed as follows:
Remove the wire mesh grille and the weather / rain
guards as well as the assembly frame and fastening
material from their respective boxes…
From the outside of the house inwards, insert the
assembly frame into the wall duct on the air intake
side and secure with screws…
8 x
Position the wire mesh grille in the assembly
frame…
Set the weather / rain guards on the assembly frame
in the wall duct and screw down…

18 We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
Installation / connection to
heating circuit
DANGER!
Danger of fatal injury due to electric
current!
Before opening the unit, disconnect the
system from the power supply and secure
it from being switched back on!
CAUTION.
Connect the unit to the heating circuit
according to the hydraulic diagram for the
respective model.
“Hydraulic connection” instructions.
NOTICE.
Check to make sure that the diameters
and lengths of the pipes for the heating
circuit are sufciently dimensioned.
The free compression of the circulating
pumps must be able to deliver at least
the minimum ow rate required for your
model.
Overview “Technical data /scope of delivery”,
“heating circuit” section.
CAUTION.
When installing the connections, always
secure the connections on the unit from
twisting, in order to prevent damage to
the copper pipes in the interior of the unit.
Proceed as follows:
Rinse heating circuit thoroughly prior to connecting
the unit to the heating circuit…
NOTICE.
Contamination and deposits in the heating
circuit can cause malfunctions.
Fit the hot water outflow (forward flow), the hot
water circuit and the shared inflow (return flow)
on the heat pump side with the included shut-off
devices and flexible hoses…
NOTICE.
During installation of the shut-off devices,
the liqueer of the heat pump can be
rinsed, if necessary.
CAUTION!
The liqueer may be rinsed only by
customer service personnel authorized by
the manufacturer .
The connections for the heating circuit and the hot
water circuit (shared return flow) are located on
the back of the unit:
1 Connections heating circuit
and hot water circuit
Dimensional drawing for respective model.
Connect the unit to the pipes of the heating circuit
via vibration decouplers. They must be installed in
order to prevent damage from vibrations to the
pipes. Guide vibration decouplers in a quarter-
circle.
NOTICE.
These are included in the scope of delivery.

19
We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
disChargehotwatersafetyvalveand
CondensatedisCharge
The discharge of the heating water safety valve and the
condensation water from the air must be drained via the
pre-mounted hoses in the unit in accordance with the
applicable standards and regulations. Discharge of the
condensate and the safety valve into the sewage system
is permitted only via a funnel siphon, which must be
accessible at all times.
For positioning of the connection for condensate
discharge, see dimensional drawings for the
respective model.
1 Drainage hose from hot
water safety valve
2 Hose for condensate discharge
CAUTION!
Guide the pre-mounted hose in the unit
for condensate discharge in the interior of
the unit as a siphon.
manometer
1 connection fitting
If necessary, the manometer can be separated from the
heating circuit without the need to drain the heating
circuit. For this purpose, unscrew the connection fitting
from the automatic shut-off valve.
CAUTION.
Do not bend the capillary tube of the
manometer!
NOTICE.
There may be water splashes when you
screw and screw the tting! Use a torque
wrench to tighten the connection tting -
torque: 10 Nm.

20 We reserve the right to modify technical specifications without prior notice.
UK830504/210627 © Alpha-InnoTec GmbH
Electrical connections
Observe the following when performing all work:
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!
DANGER!
Observe the relevant EN-, VDE and/or
applicable local safety regulations during
the installation and during all electrical
work.
Comply with technical connection
requirements of the responsible power
supply company (if required by the latter)!
NOTICE.
All live wires must be stripped before they
are installed in the cable duct of the switch
cabinets!
Hot-water tank
If the heat pump will be used for heating hot water, you
must integrate special hot-water tanks in the heat pump
system. The storage volume must be sufficient so that
the required hot water quantity is available even during
a power outage.
NOTICE.
The heat exchanger surface of the hot
water tank must be dimensioned so that
the heating capacity of the heat pump is
transferred with minimal spreading.
We offer a variety of hot-water tanks for you to choose
from. They are optimized for use with your heat pump.
NOTICE.
Integrate the hot-water tank in the
heat pump system corresponding to the
hydraulic diagram for your system.
“Hydraulic connection” instructions.
NOTICE.
An additional switching valve (accessory)
in the return ow must be mounted in
connection with the multifunction tank.
“Hydraulic connection” instructions.