alphainnoTec Hydraulic tower HT 1 User manual

UK
83054000dUK – Translation into English of the original German operating manual
Operating Manual
Hydraulic tower HT 1
Hydraulic tower HT 2
Accessories for
Air / Water Heat Pumps
Outdoor Installation

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Please read rst
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 operators of the
unit.
Read the operating manual before working on or oper-
ating 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 in-
structions that seem incomprehensible or unclear. In
case of questions or uncertainty, contact the factory
customer service department or the manufacturer’s lo-
cal service partner.
Since this operating manual was written for several dif-
ferent models of the unit, always comply with the pa-
rameters for the respective model.
This operating manual is intended only for persons as-
signed to work on or operate the unit. Treat all con-
stituent parts condentially. The information contained
herein is protected by copyright. No part of this infor-
mation 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 qualied
technicians.
DANGER!
Indicates a direct impending danger re‑
sulting in severe injuries or death.
WARNING!
Indicates a possibly dangerous situa‑
tion that could result in severe injuries or
death.
CAUTION!
Indicates a possibly dangerous situation
that could result in medium or light inju‑
ries.
ATTENTIO N
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 instructions of the manufac-
turer.

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Contents
INFORMATION FOR USERS AND QUALIFIED
TECHNICIANS
PLEASE READ FIRST..................................................................2
SYMBOLS .....................................................................................2
INTENDED USE..........................................................................4
EXCLUSION OF LIABILITY......................................................4
SAFETY .........................................................................................4
CUSTOMER SERVICE ................................................................5
WARRANTY / GUARANTEE...................................................5
DISPOSAL ....................................................................................5
HEAT QUANTITY RECORDING ............................................5
OP ER ATI ON ................................................................................5
CARE OF THE UNIT..................................................................5
MAINTENANCE OF THE UNIT ..............................................6
MALFUNCTIONS.......................................................................6
INSTRUCTIONS FOR QUALIFIED TECHNICIANS
SCOPE OF DELIVERY ................................................................6
INSTALLATION AND ASSEMBLY...........................................7
Installation location..............................................................7
Transport to installation location......................................7
Installation..............................................................................7
Components of the unit ......................................................8
Installation / Hydraulic connection to heating circuit ....9
Safety component ...............................................................10
Hydraulic connection of hot water tank.........................10
Expansion vessels................................................................10
ELECTRICAL CONNECTIONS .............................................10
RINSING, FILLING AND BLEEDING THE SYSTEM .......... 11
Rinsing, filling and bleeding the heating
and hot water circuits..................................................11
Rinsing, filling and bleeding the hot water tank.............13
Bleeding the circulating pump of the heating circuit ....13
INSULATING THE HYDRAULIC CONNECTIONS ..........13
SET THE OVERFLOW VALVE.................................................14
INSTALLATION OF THE CONTROL ELEMENT ...............14
INSTALLATION AND REMOVAL OF THE SCREEN.........16
COMMISSIONING ...................................................................17
DISMANTLING .........................................................................17
TECHNICAL DATA / SCOPE OF DELIVERY ........................18
POWER CURVES
Free compression
HT 1 ......................................................................................20
HT 2 ......................................................................................21
DIMENSIONAL DRAWINGS .................................................22
INSTALLATION PLAN ............................................................23
HYDRAULIC INTEGRATION
with LW 71A – LW 180A...................................................24
Legend Hydraulic integration............................................25
TERMINAL DIAGRAM.............................................................26
CIRCUIT DIAGRAM
HT 1 ......................................................................................27
HT 2 ......................................................................................28

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Intended use
The hydraulic tower is an accessory for air/water heat
pumps intended for outdoor installation. Taking into ac-
count the limits of application, the unit can be used in
combination with an outdoor installation air/water heat
pump in new or existing heating systems.
The unit may be used only for the intended use. This
means:
•for heating.
•for heating hot water.
The unit may be operated only within its technical pa-
rameters.
Overview “Technical data/Scope of delivery”
and overview “Technical data/Scope of delivery”
of the operating manual for the heat pump to
which the hydraulic tower is connected.
NOTICE.
Notify the responsible power supply company of
the use of a heat pump or heat pump system.
Exclusion of liability
Der Hersteller haftet nicht für Schäden, die durch
nichtbestimmungsgemässen Einsatz des Geräts entste-
hen. The manufacturer will not be liable for damage re-
sulting from unauthorized use of the unit.
The manufacturer’s liability will also be voided in the fol-
lowing cases:
•if work is performed on the unit and its compo-
nents in a manner that does not comply with the
terms of this operating manual;
• if work is performed on the unit and its compo-
nents in an improper manner;
•if work is performed on the unit that is not de-
scribed in this operating manual, and this work
was not expressly approved in writing by the man-
ufacturer;
•if the unit or components in the unit are modied,
redesigned or removed without the express writ-
ten permission of the manufacturer.
Safety
The unit is operationally safe when used for the intend-
ed purpose. The construction and design of the unit con-
form to the state of the art, all relevant DIN/VDE regu-
lations 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 per-
son 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 com-
ply with the applicable accident prevention and safety
regulations. This applies in particular to the wearing of
personal safety gear.
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!
Only qualied technicians (trained heat‑
ing, cooling, refrigerant and electrical
technicians) may perform work on the
unit and its components.
ATTENTIO N
For safety reasons:
Never disconnect the unit from the power sup-
ply, unless the unit is being opened.

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Customer service
For technical assistance, please contact your qualied
technician or the manufacturer’s local service partner.
For a current list and additional partners of the manufac-
turer, please visit
DE: www.alpha-innotec.de
EU: www.alpha-innotec.com
Warranty / Guarantee
For warranty and guarantee conditions, please refer to
the purchase documents.
NOTICE.
Please contact your dealer concerning warran-
ties and guarantees.
Disposal
When decommissioning the unit, always comply with ap-
plicable laws, directives and standards for the recovery,
recycling and disposal of materials and components.
“Dismantling”.
Heat quantity recording
In addition to the proof of the unit’s efciency,
EEWaermeGalso meets the demand for a heat quantity
recording (hereafter refered to as HQR). The HQR
is mandatory with air/water heat pumps. With brine/
water and water/water heat pumps, a HQR may only be
set up when a forward ow 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 energy that is exchanged from the heating system
in kWh.
Operation
Your decision to purchase a heat pump or a heat pump
system is a long-term contribution to protecting the en-
vironment 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 regu-
lator.
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 op-
erates efciently and ecologically, the following are espe-
cially important:
€ENERGY SAVING TIP
Avoid unnecessarily high ow temperatures.
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 in order to save
energy and reduce your heating costs.
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 abra-
sives, acids and/or chlorine. Such products would de-
stroy the surfaces and could also damage the technical
components of the unit.

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Maintenance of the unit
The components of the heating circuit and the heat
source (valves, expansion vessels, circulating pumps)
should be inspected annually by a qualied technician
(heating or cooling system technician).
The hot water tank should be cleaned once each year
by qualied personnel (heating or cooling system techni-
cians). To do this, rst empty the hot water tank. Then
remove the Styrofoam guard through the service hole
of the hot water tank. Screw off the ange cover of the
service hole.
Check the safety valve (provided by customer) for the
hot water tank at regular intervals. Since an external
current anode is built in, the anode requires no mainte-
nance.
It is a good idea to have a maintenance contract with a
heating installation company. The company will conduct
the required maintenance at regular intervals.
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 of the heating and heat pump
regulator.
ATTENTIO N
Service and repair work on the components of
the unit may be performed only by customer
service personnel authorized by the manufac-
turer.
Note that no fault is displayed if the safety temperature
limiter has triggered at the heating element (depends on
device).
Scope of delivery
Example of scope of delivery:
1 Compact unit (hot water tank and
buffer tank, without heat pump)
2 Extra box with control element
of the heating and heat pump
regulator, safety component
for heating circuit, outdoor
temperature sensor, feet
3 Expansion vessel for heat circuit
Proceed as follows:
Inspect delivery for outwardly visible signs of dam-
age…
Check to make sure that delivery is complete.
Any defects or incorrect deliveries must be claimed
immediately..
NOTICE.
Note the model.
Overview “Technical data/scope of delivery” or
rating plate on unit.

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Installation and assembly
Observe the following when performing all work:
NOTICE.
Always comply with applicable accident pre-
vention regulations, statutory regulations, ordi-
nances and directives.
INSTALLATION LOCATION
ATTENTIO N
Install the unit only indoors.
The installation area must be frost-free and dry. It must
fulll applicable local regulations.
Dimensional drawing and installation plan for re-
spective unit model.
TRANSPORT TO INSTALLATION LOCATION
To avoid damage during transport, you should transport
the unit to the nal installation location in its original
packaging (with angle bracket on the wooden pallet), us-
ing a lifting truck.
CAUTION!
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.
CAUTION!
Unit is not fastened to the wooden pallet.
The unit can tip when being lifted down
and during transport with a lifting truck.
This can result in personal injury and dam‑
age to the unit.
– Take suitable precautionary measures
to eliminate the danger of tipping.
If it is not possible to transport the unit to the nal in-
stallation location using a lifting truck, you can also
transport the unit using a hand truck.
ATTENTIO N
Never use components and hydraulic connec-
tions on the unit for purposes of transport.
ATTENTIO N
Do not damage the components and hydraulic
connections under any circumstances.
DANGER!
The strap attached to the back of the unit
is an aid for tipping the unit onto a hand
truck! Always secure the unit on the hand
truck with a tension belt!
Do not lift or transport the unit using only
the strap!
– The strap could break
– Persons could be injured
– Persons beneath the load could be fa‑
tally injured
– The unit and other objects could be
damaged!
CAUTION!
Wear safety gloves.
INSTALLATION
CAUTION!
Several people are required to install the
unit. Do not underestimate the weight of
the unit.
Proceed as follows at the installation location:
Set unit on a solid and level, preferably sound-insu-
lated surface…
Mount feet…
ATTENTIO N
Moving the unit without the feet mounted can
damage the oor.

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
•
Tip the unit slowly and carefully to one side…
Secure unit in raised position so that it cannot acci-
dentally tip back into the original position.
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 origi-
nal position…
•
Repeat procedure on the other side of the unit…
Attach side panels and position unit at nal location.
Compensate for minor unevenness using the four
adjusting screws. Then tighten the lock nuts.
COMPONENTS OF THE UNIT
1 Safety component for heating
circuit (insulated)
2 Hot water temperature sensor
3 External current anode
for hot water tank
4 Hot-water tank
5 Overow valve
6 Circulating pump for
heating circuit (HUP)
7 Switching valve for hot water
8 Fill/empty cock for heating circuit
9 Adjustable feet
10 Capability for installation of
an electric heating element
(heating element not included in
delivery; heating element for buffer
tank up to max. 1 x EHZ 60)
11 Buffer tank
12 Option for installation of an
electric heating element
(heating element not included in
delivery; heating element for hot
water tank up to max. 1 x EHZ 45F)
13 Electrical switch cabinet

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
INSTALLATION / HYDRAULIC CONNECTION TO HEATING
CIRCUIT
The connections for the heating circuit, for the cold and
hot water and for the circulation are located on the back
of the unit. The connection for the safety component of
the heating circuit is on the top of the unit:
1 Safety component for heating circuit
2 Hot water
3 Hot water inow (return ow)
4 Hot water outow (forward ow)
5 Circulation
6 Cold water
7 Heating water outow
(to heat pump)
8 Heating water inow
(from heat pump)
NOTICE.
Dimension heating system so that the free com-
pression of the circulating pumps integrated in
the unit always ensures the minimum heating
water ow rate.
Always take into account the connecting lines
between the heat pump and the hydraulic tower.
ATTENTIO N .
Install hot water connections to the heat pump
based on the specications of the heat pump
guide below frost penetration depth.
Heat pump guide.
Remove front panel of unit. To do this, loosen
quick-release screws on the front panel. Turn coun-
ter-clockwise 90°…
Lift front panel and set aside in a safe place…
ATTENTIO N
When installing the connections, always secure
the connections on the unit from twisting, in or-
der to prevent damage to the copper pipes in
the interior of the unit.
Rinse heating circuit thoroughly prior to connecting
the unit to the heating circuit…
NOTICE.
Contamination and deposits in the heating cir-
cuit can cause malfunctions.
Install shut-off devices for the hot water outow
(forward ow) and hot water inow (return ow)
on the heat pump side.
Hydraulic connection instructions‘.
Install ll/empty devices, shutoff valves and non-re-
turn valves at the required locations in the heating
circuit.

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland 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!
WARNING!
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!
Remove right side panel of unit, if necessary.…
Transport to installation location.
Open switch cabinet in unit…
To do this, only loosen the two upper screws of the
cover plate. Remove the remaining screws. Remove
cover plate….
Insert control and sensor wires and the wire for
the power company blocking contactor through the
bushings on the back of the unit. Guide wires via
the cable duct to the terminals in the switch cabi-
net…
Follow specications of the terminal diagram for
electrical connections…
“Terminal diagram” for respective model.
SAFETY COMPONENT
The safety component for the heating circuit is in the ex-
tra box.
Mount the safety component on the connection provid-
ed on the top of the unit.
The safety drain of the safety valve must lead into the
drain via a funnel siphon in accordance with the applica-
ble standards and regulations!
HYDRAULIC CONNECTION OF HOT WATER TANK
Connect hot water tank according to DIN 1988 and DIN
4753, Part 1 (or the local applicable standards and direc-
tives).
Do not exceed the operating pressures specied on the
rating plate. Install a pressure reducer, if necessary.
ATTENTIO N
The electrical conductivity of the hot water out-
ow must be > 100 µS/cm and must be compara-
ble to water that is suitable for drinking.
EXPANSION VESSELS
The expansion vessel for the heating circuit, the corre-
sponding cap valve and the wall mount are included in
the scope of delivery. They must be integrated in the
heating circuit on-site in compliance with the applicable
standards and directives.
We recommend installing a suitable expansion vessel
(not included in delivery) in the hot water circuit. This
equalizes pressure uctuations or water shocks in the
cold water network and prevents unnecessary loss of
water.

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
1 Connection for control voltage
2 Electrical switch cabinet
E
D
C
B
www.alpha-innotec.de
D - 95359 Kasendorf
Industriestraße 3
Alpha-InnoTec GmbH
1
1
Ers. d.
Ers. f.
Benennung
Durchusssensor VFS5-100
603772
-
Zust. Änderungstext Datum
9.2.2009 HS
Von
Blatt
von
Werksto Gewicht
-
Maßstab
1:2
Det. Maßstab
Datum Name
Erstellt
Gepr.
Norm.
9.2.2009 Stenglein
toleranz
Allgemein-
DIN ISO 2768 -c
Oberächen
ArtikelNr.
---
1 2 3 4
Schutzvermerk nach DIN 34 beachten
Blattformat: A4 hoch
ATTENTIO N
The sensor cable for heat quantity recording
may not be shortened!
NOTICE.
The control element of the heat and heat pump
regulator can be a connection with a computer
or network using an network cable designed for
such pruposes, thus allowing the heating and
heat pump regulator to be controlled remotely.
If such a connection is desired, install a screened
network cable (category 6, with RJ-45 plug)
through the unit when installing the connections
and run it through the front facade of the unit,
parallel to the already-present heating and heat
pump regulator control cable.
NOTICE.
If electric heating elements are installed, you are
responsible for the fuse protection of these.
After completion of all electrical installation work,
close the switch cabinet inside the unit…
Close the unit if no further installation work inside
the unit is to be performed immediately.
Rinsing, lling and bleeding
the system
ATTENTIO N
The system must be absolutely free from air be-
fore commissioning.
Contamination and deposits in the system can cause
malfunctions.
RINSING, FILLING AND BLEEDING THE HEATING
AND HOT WATER CIRCUITS
ATTENTIO N
Do not exceed a pressure of 2.5 bar when rins-
ing the unit. The drain line of the heating circuit
safety valve must be closed before rinsing and
lling.
ATTENTIO N
Before rinsing and lling the hot water tank, the
drain pipe of the safety valve must be connected.
HYDRAULIC TOWER 1
Connect hose for water outlet to lling and empty-
ing tap (provided by customer) between heat pump
and hydraulic tower (heating water inlet from heat
pump) and lead to a drain…
„Dimensional drawings“

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Connect hose for water inlet to lling and empty-
ing tap (provided by customer) between heat pump
and hydraulic tower (heating water outlet to heat
pump)…
„Dimensional drawings“
Close shut-off valves (provided by customer) to
heat pump! Open shut-off valves (provided by cus-
tomer) to hydraulic tower…
Remove the motor of the 3-way valve. To do so, re-
move the U-bolt on the motor base and CAREFUL-
LY pull the motor upward…
Turn spindle 180° and rinse hot water circuit ca. 1
minute…
Turn spindle 180° back to starting position (round-
ed side of spindle points to B)…
Rinse heating circuit! If necessary, heating and hot
water circuit can be rinsed at the same time! To do
so, turn spindle 30°…
After completion of the rinsing and lling proce-
dure, move spindle to starting position and mount
the motor of the 3-way valve…
NOTICE.
To ensure a good seat of the motor on the valve,
make sure that the U-bolt with the reduction is
not pushed past the lug, because then the motor
will not be held securely on the valve!
In order to be supported securely, the U-bolt must bear
with both ends against the lug:
The unit is bled automatically when the bleeders
(black cap) of the safety component of the heating
circuit and the bleeders on the inlet to the exchang-
er of the hot water tank are open. If the heating cir-
cuit is lled or emptied, the bleeding valves open…
Open shut-off valves (provided by customer) to
heat pump! Close shut-off valves (provided by cus-
tomer) to hydraulic tower…
Exchange hoses at lling and emptying taps and rinse
condenser of the heat pump via return ow…
In addition, open the bleeding valve on the con-
denser of the heat pump. Bleed condenser and then
close the bleeding valve after completion of bleed-
ing.
HYDRAULIC TOWER 2
Follow the instructions from to for hydraulic
tower 1…
NOTICE.
When delivered, the valve is set to hot water.

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
BLEEDING THE CIRCULATING PUMP OF THE HEATING
CIRCUIT
Loosen the screw-on cap in the middle of the circulating
pump for the heating circuit.
Insulating the hydraulic
connections
You must insulate the pipes of the heating circuit, the
connecting lines between the hydraulic tower and the
heat pump and the connections for the hot water tank.
NOTICE.
Insulate in accordance with applicable local
standards and directives.
3-way valve
1 button
2 adjusting lever
Rinse hot water circuit for ca. 1 minute…
Press button on motor of 3-way valve and simulta-
neously turn adjusting lever 90°…
Rinse heating circuit! If necessary, heating and hot
water circuit can be rinsed at the same time! To do
so, press button on motor of 3-way valve and simul-
taneously turn adjusting lever 45°…
After completion of the rinsing and lling proce-
dure, move adjusting lever of motor to starting po-
sition…
Follow the instructions from to for hydraulic
tower 1.
RINSING, FILLING AND BLEEDING THE HOT WATER
TANK
ATTENTIO N !
Before rinsing and lling the hot water tank, the
drain pipe of the safety valve must be connected.
Do not exceed the response pressure of the
safety valve.
Open valve for cold water inlet on the hot water
tank…
Open the hot water valves at the taps…
Rinse the hot water tank until air no longer emerg-
es from the valves at the taps…
Close hot water valves at the taps.

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Set the overow valve
REMARQUE
The activities in this section are only necessary
for in-line tank integration.
Complete the worksteps quickly, otherwise the
maximum return temperature can be exceeded
and the heat pump switches to high-pressure
fault.
Turn the adjusting knob at the overow valve to
the right to increase the temperature difference
(the temperature drop), turn it to the left to re-
duce it.
System is running in heating mode (ideally in cold
condition).
In case of low heating curve: Set the system to
“Forced heating”…
Operating manual of the heating and heat pump
controller.
Shut off valves to the heating circuit…
Ensure that the total ow is routed via the overow
valve…
Read out the ow and return temperature at the
heating and heat pump controller…
Operating manual of the heating and heat pump
controller.
Turn the adjusting knob (1) of the overow valve (2)
until the temperature drop between the ow and
return temperature is set as follows:
External temperature Recommended settings
-10 °C 4 K
0 °C 5 K
10 °C 8 K
20 °C 9 K
30 °C 10 K
Open valves to heating circuit…
Reset the heating and heat pump controller.
Installation of the control
element
Situated at different heights in the front facade of the
unit are recesses (each with 4 recesses) for fastening the
control element:
1 four upper recesses
2 four lower recesses
4 hooks are located on the back side of the control
element and can be used to hang the control element on
the front facade of the unit:

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Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Hang the control element’s hooks on the recesses
of the front facade (either in the upper or lower
recesses)…
Example:
Control element in upper recesses
Push the control element down until it locks into
position…
Stick the heating and heat pump regulator’s control
cable into the right bushing on the bottom of the
control element…
NOTICE.
A connection to a computer or a network can
be installed via the left bushing on the bottom
of the control element, thus allowing the heat-
ing and heat pump regulator to be controlled
remotely. One pre-condition is that a screened
network cable (category 6) be installed through
the unit when installing the unit.
Operating manual for the heating and heat pump
regulator, version “Qualied technician”, “Web
server” section.
If this network cable is available, insert the net-
work cable’s RJ-45 plug into the left bushing of
the control element.
NOTICE.
The network cable can be exchanged at any
time. In order to be able to connect it, the
screen must rst be removed.

16
Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Installation and removal of the
screen
INSTALLING THE SCREEN
NOTICE.
The screen is provided at the time of delivery so
that the control element may be inserted in the
upper recesses of the front facade.
If the control element has been inserted in the
lower recesses of the front facade, you must
rst remove the screen’s temporary cover and
then reinsert it above the logo.
Screen at time of delivery:
1 recess for control element
2 logo
3 temporary cover
First, insert the screen below, in the provided slots
on the front of the facade…
Beginning rst on one side and moving upwards,
lock the screen’s snap-in lugs in place in the slots
provided on the front of the facade…
Next, on the opposite side, moving upwards.
Lock the screen’s snap-in lugs in place in the slots
provided on the front of the facade…
Finally, press the screen’s upper snap-in lugs into
the slots provided on the front of the facade.
REMOVING THE SCREEN
In order to remove the screen, the snap-in lugs must
rst be loosened by pressing one side completely
toward the middle of the screen. Thereafter,
remove the snap-in lugs from the opposite side.

17
Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | 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!
WARNING!
Only qualied heating or cooling system
technicians are allowed to remove the unit
from the system.
ATTENTIO N
Recycle or provide for proper disposal of unit
components in accordance with the applicable
regulations, standards and directives.
REMOVAL OF THE BUFFER BATTERY
ATTENTIO N
Before scrapping the heating and heat pump reg-
ulator, remove the buffer battery on the proces-
sor board. The battery can be pushed out using
a screwdriver. Dispose of battery and electronic
components in keeping with environmental con-
siderations.
Commissioning
Follow the instructions in the section entitled
“Commissioning” in the operating manual for
your heat pump.
Make sure of the following…
•The water supply to the hot water tank must be
open.
•The hot water tank must be lled.
If the heat pump is switched on with an empty
tank, the control element will indicate a malfunc-
tion.
Operating manual of the heating and heat pump
regulator.

18
Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Accessory for heat pump model LW 71A … – LW 81A … ı LW 101A…– LW 180A … • applicable ı — not applicable
Installation location Indoors ı Outdoors • applicable ı — not applicable
Conformity CE
Heating circuit Free compression heat circuit pump ∆p ı volume flow bar ı l/h
max. permissible operating pressure bar
Volume of buffer tank l
3-way valve, heating/hot water integrated: • yes — no
Hot-water tank Rated volume l
permissible operating pressure bar
Surface heat exchanger heat pump m²
General unit data Dimensions (see dimensional drawings for the specified unit size) unit size
Total weight kg
Connections Heating circuit ...
Cold water ...
hot water ...
Circulation ...
Electric Voltage code ı circuit breaker control voltage *) ... ı A
effective power input of heating/hot water circuit pump kW
Protection type IP
Safety equipment Safety component heating circuit ı Safety component heat source Incl. in sc. of delivery: • yes — no
Heating and heat pump regulator Incl. in sc. of delivery: • yes — no
Expansion vessels Heating circuit: Scope of delivery ı Volume ı Initial pressure • yes — no ı l ı bar
Overflow valve integrated: • yes — no
Factory setting (adjust when commissioning the system) bar
Sound Sound pressure level in free field/sound conducting level dB(A) ı dB(A)
UK813300L
*) comply with local regulations
Technical data / scope of delivery

19
Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
HT 1
• ı —
• ı —
•
0,70 ı 1000
3
98
•
295
10
2
1
290
R 1“
R 1“
R 1“
RP ¾“
1~N/PE/230V/50Hz ı B10
0,07
20
• ı —
•
• ı 25 ı 1,5
•
0,3
35 / 49
813300a
HT 2
— ı •
• ı —
•
0,52 ı 2000
3
98
•
285
10
3,5
1
290
R 1¼“
R 1“
R 1“
RP ¾“
1~N/PE/230V/50Hz ı B10
0,09
20
• ı —
•
• ı 50 ı 1,5
•
0,5
35 / 49
813301d

20
Subject to change without notice | 83054000dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Bezeichnung:
Freie Pressung
Seite: 1/1
HT 1
Zeichnungsnummer: 812022
Datei: 812022b Externe Pressung HT 1
- / PEP 021-2006 / Stannow / 22.06.07
a/ÄM 0072-2015/Liska/25.01.2015
b/ÄM 001-2016/Liska/25.02.2016
Änd./ÄM/Ersteller/Datum
0,0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
1,0
0,0 0,5 1,0 1,5 2,0 2,5 3,0 3,5
Δp (bar)
VHW (m³/h)
Legend: UK812022
“” Volume ow, heating water
∆p (bar) Free compression, heating circuit
HT 1 Free compression