alphainnoTec LW 160H/V User manual

Subject to technical change without notice.
83054800bUK – Translation into English of the original German operating manual © ait-deutschland GmbH
HEAT PUMPS
Operating Manual
Indoor installation
AIR/WATER
UK
LW 160H/V

2
Subject to change without notice.
83054800bUK – 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 kept ready to hand 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 users of the unit.
Read the operating manual before starting any work on
or with the unit. Especially the chapter on safety. Follow all
instructions in full and unreservedly.
This operating manual may contain descriptions,which seem
incomprehensible or unclear. In the event of any questions
or if any details are unclear, contact the factory customer
service department or the manufacturer's local partner.
As 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 with the unit.Treat all its constituent parts
condentially. They are protected by copyright. They may
not be reproduced, transmitted, copied, stored in electronic
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 users.
Information or instructions for qualied personnel.
DANGER!
Indicates a direct impending danger
resulting in severe injuries or death.
WARNING!
Indicates a potentially dangerous situation
that could result in serious injuries or death.
CAUTION!
Indicates a potentially dangerous situation
that could result in moderate or slight
injuries.
ATTENTION
Indicates a potentially dangerous situation, which
could result in property damage.
NOTE.
Emphasised 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.

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Contents
INFORMATION FOR USERS AND QUALIFIED
PERSONNEL
PLEASE READ FIRST ..............................................................................2
SYMBOLS ..................................................................................................2
INTENDED USE ...................................................................................... 4
DISCLAIMER.............................................................................................4
EC CONFORMITY ................................................................................. 4
SAFETY ......................................................................................................4
CUSTOMER SERVICE............................................................................. 5
Service addresses..............................................................................5
WARRANTY/GUARANTEE.................................................................5
DISPOSAL .................................................................................................5
HOW HEAT PUMPS WORK ................................................................ 6
AREA OF USE ..........................................................................................6
HEAT METERING....................................................................................6
OPERATION.............................................................................................6
CARE OF THE UNIT..............................................................................7
MAINTENANCE OF THE UNIT ......................................................... 7
Cleaning and ushing unit components....................................... 7
MALFUNCTIONS ...................................................................................7
INSTRUCTIONS FOR QUALIFIED PERSONNEL
SCOPE OF SUPPLY.................................................................................8
INSTALLATION AND ASSEMBLY .......................................................9
Installation location .......................................................................... 9
Transport to the installation location ..........................................9
Installation ........................................................................................12
Installing the air ducts....................................................................12
Installation / connection to the heating circuit ........................16
Condensate drain ...........................................................................17
PRESSURE SAFETY ...............................................................................17
CIRCULATION PUMP .........................................................................17
BUFFER TANK........................................................................................17
WATER HEATING ................................................................................17
HOT WATER TANK..............................................................................17
ELECTRICAL CONNECTION WORK ...........................................18
FLUSHING, FILLING AND VENTING THE SYSTEM....................19
Water quality of the ll and make up water toVDI 2035.....19
INSULATING THE HYDRAULIC CONNECTIONS ....................21
INSTALLING THE CONTROL UNIT...............................................21
INSTALLING AND DISMANTLING THE MASKING PLATE .....22
COMMISSIONING................................................................................23
Safety temperature limiter............................................................24
OVERFLOW VALVE...............................................................................24
DISMANTLING......................................................................................25
TECHNICAL DATA/SCOPE OF SUPPLY ........................................26
PERFORMANCE CURVES...................................................................27
Heating capacity/COP / power consumption /
heat pump pressure loss
DIMENSIONED DRAWINGS AND INSTALLATION PLANS
Dimensioned drawings ..................................................................28
Installation plans..............................................................................29
TERMINAL DIAGRAM.........................................................................33
CIRCUIT DIAGRAMS...........................................................................34
APPENDIX
EC DECLARATION OF CONFORMITY........................................39
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH Subject to change without notice.
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH

4
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH
Intended use
The unit is only to be used for its intended purpose. This
means:
•for heating.
•for water heating.
The unit may be operated only within its technical
parameters.
“Technical data /scope of supply” overview.
NOTE.
Notify the responsible power supply company of
the use of a heat pump or heat pump system.
Disclaimer
The manufacturer is not liable for damage or losses resulting
from any use of the unit which is not its intended use.
The manufacturer's liability also expires:
•if work is carried out on the unit and its components
contrary to the instructions in this operating manual.
• if work is improperly carried out on the unit and its
components.
•if work is carried out on the unit which is not
described in this operating manual, and this work has
not been explicitly approved by the manufacturer in
writing.
•if the unit or components in the unit have been
changed, modied or removed without the explicit
written consent of the manufacturer.
EC conformity
The unit bears the CE marking.
EC Declaration of Conformity.
Safety
The unit is safe to operate when used for its intended
purpose. The construction and design of the unit conform
to current state-of-the-art standards, all relevant DIN/VDE
regulations and all relevant safety regulations.
Every person who carries out work on the unit must have
read and understood the operating manual before starting
any work. This also applies if the person concerned has
already worked with such a unit or a similar unit or has
been trained by the manufacturer.
Every person who carries out work on the unit must
comply with the applicable accident prevention and safety
regulations. This applies in particular to the wearing of
personal protective clothing.
DANGER!
Risk of fatal electric shock!
All electrical connection work must be
carried out by qualied electricians only.
Before opening the unit, disconnect the
system from the power supply - wait for
90 seconds = residual voltage at inverter -
and prevent it from being switched back on
again!
WARNING!
Only qualied personnel (trained heating,
refrigeration engineers and electricians)
may carry out work on the unit and its
components.
WARNING!
Unit contains refrigerant!
Leaking refrigerant could result in personal
injury and environmental damage.Therefore:
– Switch off system.
– Notify the manufacturer’s authorised
customer service.
ATTENTION
For safety reasons:
Never disconnect the unit from the power supply,
unless the unit is being opened.
ATTENTION
Install the heat pump indoors only and operate it
only with outside air as the heat source. The air
ducts must discharge outdoors. They must not be
constricted or blocked.

5
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH Subject to change without notice.
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH
Dimensioned drawing and installation plan for the
respective model.
WARNING!
Never switch on the unit if air ducts are
mounted on the unit.
Take precautions on the fan side to prevent
injuries caused by the rotating fan (air duct
outlet above ground level: weather louvre,
air duct outlet below ground level: rain
louvre, each not included in the accessories
supplied).
ATTENTION
It is not permitted to integrate the heat pump
in ventilation systems. Use of the cooled air for
cooling purposes is not permitted.
ATTENTION
The ambient air at the place in which the heat
pump is installed, as well as the air drawn in as a
heat source, must not contain any corrosive con-
stituents!
Constituents (such as ammonia, sulphur, chlorine,
salt, sewage gases, ue gases…) can cause damage
to the heat pump, which can result in complete
failure / irreparable total damage to the heat pump!
Can be installed near the coast.
CAUTION!
In the air outlet area the air temperature is
approx. 5° K below the ambient temperature.
Under certain climatic conditions an ice layer
can therefore form in the air outlet area.
Install the heat pump so that the air blower
does not discharge into footpath areas.
Customer service
For technical information please contact a qualied installer
or the manufacturer's local partner.
SERVICE ADDRESSES
For a current list and additional partners of the
manufacturer, please visit
DE: www.alpha-innotec.de
EU: www.alpha-innotec.eu
Warranty/Guarantee
For warranty and guarantee conditions, please refer to your
purchase documents.
NOTE.
Please contact your dealer about all matters
concerning warranties and guarantees.
Disposal
When decommissioning the old unit, always comply with
local applicable laws, directives and standards concerning
the recovery, recycling and disposal of materials and
components of cooling units.
“Dismantling”.

6
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH
How heat pumps work
Heat pumps operate on the same principle as a refrigerator:
the same technology, only with reversed benets. The
refrigerator extracts heat from food, It discharges this heat
into the room through ns at its rear.
The heat pump extracts heat from our environment:
from the air, earth or groundwater. The extracted heat is
conditioned in the unit and passed on to the heating water.
Even when it is extremely cold outside, the heat pump
draws enough heat to heat a house.
Example: sketch of a brine/water heat pump with underoor
heating:
4/4= useful energy
approx. 3/4= environmental energy
approx. 1⁄4= external
electrical energy
Area of use
Taking into consideration the ambient conditions, limits of
use and the relevant regulations, any heat pump can be used
in new or existing heating systems.
“Technical data /scope of supply” overview.
Heat metering
In addition to proof of the unit's efciency, the EEWaermeG
(German law promoting renewable energy for heating) also
requires heat metering (hereinafter referred to as WME).
Heat metering is mandatory for air/water heat pumps. Heat
metering for brine/water and water/water heat pumps only
has to be installed for a ow temperature ≥35 °C.The heat
metering must record the total thermal energy output
(heating and hot water) to the building. In heat pumps with
heat metering, the evaluation is carried out by the controller.
The controller displays the thermal energy output into 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
environment through low emissions and reduced primary
energy use.
You use the control element of the heating and heat pump
controller to operate and control the heat pump system.
NOTE.
Make sure that the controller settings are correct.
Operating manual of the heating and heat pump
controller.
To ensure that your heat pump or heat pump system
operates efciently and ecologically, please pay particular
attention to the following:
€ENERGY SAVING TIP
Avoid unnecessarily high ow temperatures.
The lower the ow temperature on the heating
water side the more efcient the system.
€ENERGY SAVING TIP
Preferably use purge ventilation. Compared to con-
tinuously open windows, it is better to air rooms
by fully opening windows for a short period, two
to three times a day (so-called “purge” ventilation);
this reduces energy consumption and your heating
bill.

7
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH Subject to change without notice.
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH
Care of the unit
You can use a damp cloth and standard cleaning products to
clean the outer surfaces of the unit.
Do not use cleaning or care products that contain abrasives,
acids and/or chlorine. Such products would irreparably
damage the surfaces and could also cause technical damage
to the unit.
Maintenance of the unit
The cooling circuit of the heat pump does not require any
regular technical maintenance.
According to EU regulation (EC) 842/2006, certain heat
pumps must be checked for leakage and a log book of the
inspections must be kept!
The criteria for whether or not it is necessary to check
for leakage and keep a log book are the hermetic tightness
of the refrigerating circuit (hermetically sealed system) and
the refrigerant capacity of the heat pump! Heat pumps with
refrigerant capacity < 3 kg do not require a log book. For
all other heat pumps, the log book is supplied with the heat
pump.
Log book for heat pumps, “Information on use of
the log book” section.
The components of the heating circuit and the heat source
(valves, expansion vessels, circulation pumps, lters, dirt
traps) should be checked and cleaned as necessary, but
at least by qualied personnel (heating or cooling system
tters).
It is best to sign a maintenance agreement with a suitably
competent company. It will arrange for the necessary main-
tenance work at regular intervals.
ATTENTION
Check regularly to ensure that the condensate can
drain out of the unit freely, without obstruction.To
this end, check the condensate pan in the unit and
the condensate drain regularly for dirt / blockages
and clean as necessary.
CLEANING AND FLUSHING UNIT COMPONENTS
CAUTION!
Unit components may be cleaned and
ushed only by customer service personnel
authorised by the manufacturer. Only use
liquids recommended by the manufacturer.
After ushing the condenser with chemical
cleaning agent, any residues must be neu-
tralised and the system ushed intensively
with water. Always note and follow the tech-
nical data of the respective heat exchanger
manufacturer.
Malfunctions
In the event of a fault, you can read out the cause of the
fault from the diagnostic program of the heating and heat
pump controller.
Operating manual of the heating and heat pump
controller.
CAUTION
Only customer service personnel authorised
by the manufacturer may carry out service
and repair work on the components of the
unit.
“Customer service” overview.
Note that no fault is displayed if the safety temperature
limiter on the electric heating element has triggered
(depending on model).
“Commissioning”, “Safety temperature limiter”
section.

8
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH
Scope of supply
Example of scope of supply packaging:
View 1:
View 2:
Unit with hermetic compressor, all safety-
relevant components for cooling circuit
monitoring, installed heating and heat
pump controller, sensors installed in
the unit to record the hot gas, heating
water ow and return temperature as
well as hose for condensate discharge
(connected on the heat pump side)
Integrated circulation pump UP 25-85 PWM
What to do rst:
Check the delivery for outwardly visible signs of
damage…
Check to make sure that the delivery is complete.
Any defects or incorrect deliveries
must be reported immediately.
NOTE.
Note the unit model. Check the direction in which
the air from the unit is discharged.
Units with the letter L in their model identier
blow out the air on the left (viewed from the oper-
ating side).
FUNCTIONALLY NECESSARY ACCESSORIES:
ATTENTION
Use only original accessories made by the manufac-
turer of the unit.
You must order the air ducts (with air duct accessories)
separately.
ADDITIONAL ACCESSORIES
The installation accessories (vibration isolators) for air/
water heat pumps for indoor installation must be ordered
separately.

9
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH Subject to change without notice.
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH
Installation and assembly
The following applies to all work to be done:
NOTE.
Always comply with the relevant local accident
prevention regulations, statutory regulations,
guidelines and directives.
NOTE.
Note the sound information for the respective
model.
“Technical data / scope of supply” overview,
“Sound” section.
INSTALLATION LOCATION
CAUTION.
Install the unit inside buildings only.
The installation room must be frost-free and dry.
WARNING!
Please note and follow the respective
relevant local standards,guidelines,directives
and regulations, especially the minimum
room volume necessary depending on the
quantity of refrigerant in the relevant heat
pump system (EN 378-1).
Refrigerant Limit value
R 134a 0.25 kg/m³
R 404A 0.48 kg/m³
R 407C 0.31 kg/m³
R 410A 0.44 kg/m³
“Technical data / scope of supply” overview,
“General unit data” section.
Minimum room volume =
Refrigerant capacity [kg]
Limit value [kg/m³]
NOTE.
If several heat pumps of the same type are installed,
only one heat pump must be considered.
If several heat pumps of different types are installed,
the heat pump requiring the largest room or space
must be considered.
TRANSPORT TO THE INSTALLATION LOCATION
To prevent damage during transport, always transport the
unit still packed to its nal installation location using a pallet
truck.
If it is not possible to transport the unit to the nal installa-
tion location using a pallet truck, you can also transport the
heat pump on a handcart or with tube handles.
Lifting the unit with tube handles.
WARNING!
The unit is not xed on the wooden pallet.
Risk of tipping/overturning during transport!
People could be injured and equipment
damaged.
– Take suitable precautions to prevent the
risk of overturning.
ATTENTION
Never use components and hydraulic connections
on the unit for transport purposes.
ATTENTION
Do not tilt the unit by more than 45° maximum (in
any direction).

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Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH
Pass the tube handles through the holes in the frame:
1 Holes in the frame, front and rear
Make sure that the tube handles do not damage cable
harnesses and components in the unit. Feed the tube
handles carefully past cable harnesses and components
in the unit…
Lift the unit with the inserted tube handles, with at
least four people (one for each tube handle) and carry
to the place of installation.
CAUTION
Carry the unit horizontally and secure it
against slipping.
Put down the unit at the place of installation. Make
sure that the unit's baseframe is in full contact with the
surface of the oor…
Remove the tube handles…
If the electrical connection work is not carried out
immediately, re-attach the lower facade panel on the
operating side.
LIFTING THE UNIT WITH TUBE HANDLES
The LW unit can be lifted with 3⁄4” or 1” tube handles (to
be provided on site by the customer). Appropriate holes
are provided for these in the unit frame.
Remove the lower facing panels at the front and rear
of the unit.
1 Quick-release screws
2 Lower facing panel
To do this, undo the quick-release screws.Turn through
90° to the left…
Pull the lower facing panel upwards and outwards at an
angle, lift out and put in a safe place...