Kronoterm WPL-45-K1 HT Reference manual

Manual for Installation, Use and
Maintenance
Commercial Air-Water Heat Pumps
WPL-45-K1 HT
WPL-70-K1 HTT
WPL-90-K1 HTT
The manual has to be handed over to the end user after installation.
ENG
Id.: 17-16-26-3017-03 | 6.2017

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Manual for Installation, Use and Maintenance - Commercial air-water heat pumps
WPL-45-K1 HT / WPL-70-K1 HTT / WPL-90-K1 NTT
Id.: 17-16-26-3017-03 | 6.2017
Printed in Slovenia, copyright: Kronoterm d.o.o.
This document is copyrighted. Any use outside the provisions of the copyright law without the
permission of Kronoterm d.o.o. is illegal and punishable by law. All previous versions of this document
are void. We reserve the right to make changes and mistakes in print.

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Content
1. Important information ..............................................................................................................5
1.1 Symbols...........................................................................................................................5
1.2 General............................................................................................................................6
1.3 Safety warnings and instructions ....................................................................................6
1.4 Obligations of the manufacturer ...................................................................................... 9
1.5 Obligations of the installer during installation..................................................................9
1.6 Obligations of the authorised contractor for commissioning at first commission. ...........9
1.7 Obligations of the user ....................................................................................................9
1.8 Factory testing...............................................................................................................10
2. Transport and installation of the device ..............................................................................11
2.1 Transport .......................................................................................................................11
2.2 Installation of the device................................................................................................11
2.2.1 Installing the device with a forklift..............................................................................11
2.2.2 Installing the device with a mobile crane ..................................................................12
2.3 Storing and warehousing of the device.........................................................................14
3. Delivery package ....................................................................................................................14
3.1 The delivery package includes......................................................................................14
3.2 Internal unit....................................................................................................................15
3.3 Package and worn-out device management.................................................................15
4. Installation of the device .......................................................................................................16
4.1 General..........................................................................................................................16
4.2 Location of the device ...................................................................................................18
4.2.1 Minimal clearance from the device............................................................................20
4.2.2 Levelling of the device...............................................................................................20
4.2.3 Removal of side.........................................................................................................21
4.2.4 Concrete pedestal .....................................................................................................21
4.3 Hydraulic connection of the device ...............................................................................22
4.4 Heating system of machine installations .......................................................................22
4.4.1 The scheme of the heating system ...........................................................................23
4.4.2 Charging of the heating system ................................................................................25
4.4.3 Preparing the heating system – secondary...............................................................26
4.4.4 Condensate drainage................................................................................................29
4.5 Electrical connection .....................................................................................................30
4.6 Removal of the lid of the control unit.............................................................................30
4.7 Connecting the external unit .........................................................................................31
4.7.1 Power cable connection of the external unit .............................................................32
4.7.2 The connection of the communication FTP cable to the external unit ......................33
4.8 Connecting the internal device......................................................................................34
4.9 Spatial corrector ............................................................................................................34
5. Commissioning of the device ...............................................................................................34
6. MAINTENANCE.......................................................................................................................35
6.1 Cleaning the water filter ................................................................................................35
6.2 Monitoring the pressure in the heating system .............................................................35

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6.3 Cleaning of the heat conductors ...................................................................................35
6.3.1 Cleaning of the heating system (water side).............................................................35
6.3.2 Cleaning the heat source (air side) ...........................................................................36
6.4 Disturbances in the operation .......................................................................................36
7. Technical data ........................................................................................................................38
7.1 Device dimension drawings ..........................................................................................38
7.1.1 WPL-45-K1 HT ..........................................................................................................38
7.1.2 WPL-70-K1 HTT and WPL-90-K1 HTT.....................................................................39
7.2 Technical data ...............................................................................................................40
7.3 Range of operation........................................................................................................42
7.3.1 Heating mode ............................................................................................................ 42
7.3.2 Cooling mode ............................................................................................................43
7.3.3 Pressure drop through the device .............................................................................43
7.4 Noise .............................................................................................................................44
7.5 Legend of data label......................................................................................................46
8. Notes........................................................................................................................................47

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1. Important information
The manual describes the process of installation and maintenance of the device. The installation and
maintenance can only be performed by qualified personnel. Read the manual carefully before the
installation, this way you will be informed about the intended use, functionality and process of handling
the device.
The manual has to be handed over to the end user after installation.
In case the product shall be given to a third person for use, the manual has to be handed over
to them as well.
Definitions
An informed person is a person who reads this manual.
A qualified person has a certificate of expert qualifications.
An authorised commission contractor is trained by the manufacturer and authorised to perform
commission.
The authorised technician is trained and authorised by the manufacturer to perform
maintenance and servicing of the device.
The user uses the device according to its use.
The installer is a person professionally trained for performing hardware and/or electro-
installation work and mounting of the device.
Incorrect use of the device can lead to damage of the device, property or injury to the user. To reduce
risk the manual points out important information with the use of symbols.
1.1 Symbols
These symbols mark various risks for the user or the device.
DANGER:
Risk of situations which can lead to serious physical injuries.
WARNING: Risk of situations which can lead to minor physical injuries.
CAUTION: Risk of situations which can lead to damage or malfunction of
the device.
This symbol marks information for the user.
NOTE:
A notice which holds important information regarding requirements
of the manufacturer.

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1.2 General
NOTE
Read the instructions for use and installation before installation.
NOTE
Any remaking or replacement of original components of the device eliminates
the manufacturer’s guarantee for safe and functional operation. In the case
of undesignated and incorrect use of the device the manufacturer is not
responsible for the consequences and will not acknowledge claims for
damages in these cases. The user is solely responsible for injuries and
damages on the device itself or on other objects resulting from undesignated
and incorrect use of the device.
NOTE
The installation of the device has to be performed in accordance with the
manual; otherwise the manufacturer does not acknowledge the warranty.
NOTE
The device is designed for yearly use of 2000 hours. Choosing an inadequate
power of the device can lead to yearly operation of above 2000 hours which
will reduce the lifespan of the device.
NOTE
Devices with the rated current higher than 16 A are in accordance with IEC
61000-3-12.
NOTE
After connecting the device it is necessary to acquire the guarantee or consult
the operator of the distribution network that the impedance of the network is
lower than prescribed for the individual type of device in the technical data.
This way the device will operate within acceptable limits of disruptions.
Otherwise it is necessary to connect the device to the network using a soft
start device.
DANGER
Failure to comply with the manual and good practise while connecting the
device to the power supply can lead to serious injury or death.
WARNING
Connecting the device to the power source can only be performed by a
qualified installer.
1.3 Safety warnings and instructions
DANGER
It is prohibited to move, shift, clean or service the device while in operation.

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WARNING
It is prohibited to play with the device. Children are not allowed to clean the
device without supervision.
WARNING
The device can be operated independently only by informed persons who are
familiar with the safe operation of the device and understand possible hazards
of its operation. Children older than 8 and people with reduced physical and
mental capacities and with lack of experience and knowledge can only
operate the device under the supervision of an informed person.
WARNING
Before installation and any further adjustments to the device it is necessary to
consider the manual for safe use and maintenance.
WARNING
Installation has to be performed in accordance with national regulations on
electrical installations and with the instructions of the manufacturer. It has to
be performed by a professionally trained person.
CAUTION
The servicing and maintenance of the device can only be performed by a
person authorised by the manufacturer. In case of a malfunction, first contact
the installer who installed the device.
WARNING
It has to be made sure that the device does not endanger anybody. Access
to the device has to be denied to children and persons who are not informed
about the operation of the device.
WARNING
The device must never be cleaned with cleaning agents containing sand,
soda, acid or chlorides because these might damage the surface of the
device.
WARNING
The device contains fluorinated greenhouse gas. This is why tampering with
the device is only allowed to persons authorised for working with the
refrigerant as defined by the national legislation in force. While performing
works on the device, it is necessary to prevent the refrigerant to leak into the
atmosphere.
WARNING
It is necessary to consider all technical data and instructions in this manual as
well as all warnings and notes during planning, design, installation and use of
the device.
WARNING

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Electrical installations have to be inspected in accordance with regulations on
the requirements for low voltage electrical installations in buildings by the
installer of electrical installations.
DANGER
Connecting the devices power cable can be performed by a qualified
electrician. During the procedure the device must not be live.
WARNING
In case the power cable of the device is damaged it has to be immediately
replaced. The replacement can only be performed by the installer or
authorised maintenance worker.
WARNING
Before opening the device disconnect all electrical circuits and make sure the
device is not live.
CAUTION
Putting any kinds of items on or next to the device is prohibited.
CAUTION
In case the device is placed on the ground which is more subject to the
transfer of vibrations than a classical concrete panel with a screed, it is
necessary to underlay the device with a suitably thick and quality anti-vibration
underlay.
CAUTION
The device must not be placed in a room where it cannot be removed. Later
walling or setting up of other obstacles next to the device is forbidden.
CAUTION
In three-phase versions of the device it is necessary to ensure the correct
arrangement of phases when connecting it to the power supply.
CAUTION
For the correct operation of the device, the electrical distributor has to provide
electricity of adequate quality (SIST EN 50160). In normal conditions this is
within ± 10 % of the rated voltage. The data about the state of the electrical
grid have to be acquired from the electrical distributor.
CAUTION
Operation of the device with a frequency converter is forbidden.
CAUTION
Connecting the device to the electrical network has to be performed in
accordance with the standards for connecting devices to the electrical
network. Connect the device to the electrical network via the power supply
cut-off which is installed into the electrical installation under the regulations in
force.

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1.4 Obligations of the manufacturer
The manufacturer guarantees that the device is in accordance with current European directives and
standards. The device is marked with the mark CE and it has all the necessary documentation.
We reserve the right to make changes to the manual without prior notice.
As manufacturer we do not take responsibility for the consequences arising from:
Non-compliance with the manual for the device.
Incorrect and/or inadequate maintenance of the device.
Non-compliance with the manual for the installation of the device.
1.5 Obligations of the installer during installation
The installer is responsible for installing the device in accordance with the following requirements:
To thoroughly study the instructions for use and installation accompanying the device before
installation.
To install the device in accordance with the instructions and national legislation, policies and
standards in force.
1.6 Obligations of the authorised contractor for commissioning at
first commission.
CAUTION
The first commission can only be performed by the contractor of commissions appointed by
the manufacturer in accordance with the instructions for commission.
The contractor for commissions is responsible for commissioning the device in accordance with the
following requirements:
Performs the first commission and with the installer of others section of heating system
eliminates all eventual irregularities found at the commission.
To train the user for operating the device and settings.
Alerts the user to regularly maintain the device for keeping the device functioning properly
throughout its entire lifespan.
Gives the user all the documentation accompanying the device.
1.7 Obligations of the user
For ensuring unobstructed and effective operation of the device the user has to follow the following
instructions:
To thoroughly study the instructions for use and installation accompanying the device before
use.
To have a qualified and authorised installer perform the installation of the device.
To have a contractor for commissions perform the commission.
Allow the authorised contractor for commissioning or ask him to thoroughly explain the
functioning and how to operate the device.
Ensure regular yearly inspections and maintenance of the device by the authorised
maintenance worker.
Store this manual in an appropriate dry place close to the device.

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1.8 Factory testing
For ensuring the high quality standard every device is tested in production for the following:
Tightness of the cooling cycle,
Water-tightness
Electrical safety and
Functionality.

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2. Transport and installation of the device
2.1 Transport
CAUTION
The device must be transported with transport devices.
Secure the device during transport to prevent damage.
Transport the device in vertical position.
It is prohibited to tilt the device above 45°. Otherwise, damage to the cooling system
may occur.
2.2 Installation of the device
NOTE
When installing the device, it is necessary to take into account that the centre of gravity is
not in the middle of the device. To help manipulating the device, there are stickers on the
device indicating the centre of gravity.
CAUTION
Installation can only be performed with a forklift or mobile crane. Other installation methods
are not permitted.
2.2.1 Installing the device with a forklift
When inserting the forks of the forklift under the device, care must be taken not to damage the heating
cable (green colour) intended for preventing freezing in the condensate drainage pipe.
CAUTION
Appropriate transport equipment must be used for installing the device. Safety regulations
and good practise have to be followed.

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2.2.2 Installing the device with a mobile crane
To manipulate the device with a mobile crane, the so-called manipulation equipment provided by the
manufacturer of the device and shipped on customer demand must be used on the site. The customer
must return the equipment after completing the installation of the device.
Manipulation equipment
Preparing the device for transport
Two U-profiles are inserted through the out-most supporting legs. The U-profiles serve as leads for the
connecting straps, they also protect against damage because there are screws on the bottom of the
device which could tear the straps.
The transport frame is fixed to the mobile crane on the ground and is then lifted above the device; it is
then secured to the device with the straps. The transport frame must be positioned approx. 20 cm above
the device. The transport frame must not be placed or laid against the roof of the device because this
could lead to damage of the roof.

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Devices with higher power are manipulated in the same manner as those with lesser power (described
above), but the transport frame used is bigger, and an additional strap and U-profile are used (picture
below).

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2.3 Storing and warehousing of the device
The device has to be stored in a dry and clean place. The allowed storing temperature is between 10
°C and 45 °C, for a short period (up to 24h) also up to 50 °C.
3. Delivery package
3.1 The delivery package includes
Compact heat pump (device) for external installation (external unit).
Controller unit TERMOTRONIC 3000 (internal unit)
Manipulation equipment (see chapter 2.2.2).
Manual for Installation, Use and Maintenance.
Instructions for use.
Filter (optional).
Rubber compensator or flexible pipe (optional).
Circulation pump (optional).
STANDARD
LABEL

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3.2 Internal unit
The internal device is installed depending on the design of the heating system:
Basic wall control unit TT3000 - see Manual for Installation, Use and Maintenance of the
Wall Control Unit TT3000,
Expansion wall control unit TT3000 - see Manual for Installation, Use and Maintenance of
the Expansion Wall Control Unit TT3000,
3.3 Package and worn-out device management
Sort the package according to cardboard, wood and foil and dispose of it in appropriate
containers.
After the lifespan of the device ends it has to be disposed of in accordance with the legislation
on waste electrical and electronic devices in force.
Coolant
The device holds the fluorinated greenhouse gas. You have to prevent leakage of the gas into the
atmosphere. During a maintenance procedure or removal of the device it has to be made sure that the
gas is removed in accordance with the current regulations on the use of substances harmful to the
ozone and fluorinated greenhouse gasses.

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4. Installation of the device
The device is installed on the open, as close to the DHW room of the main building as possible (this
lowers energy losses) and is connected to the heating system.
4.1 General
The device enables a machine connection with the DHW room from the bottom (INSTALLATION-V1)
and back (INSTALLATION-V2) side.
INSTALLATION-V1
P10
P4
P9
P12
P11
P3
P5
P7
B
A
P5
P6
P7
P5
P15
A
B
A
B
P14
P8
P1
min
800 mm
P9
V1
P15
P13
C
CC
C

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INSTALLATION-V2
P3
P5
P6
P7
P4
P10 P9
P12
P13
P11
P15
P7
B
A
P5
A
B
A
B
P14
P8
P1
min
800 mm
P9
V2
P15
CC
CC
A Supply pipe (heating) P8 An adequate protection hose separate
for power / communication
B Return (heating) P9 Heat insulation with suitable protection
(I.e. ALU harness)
C Control unit TT3000, TT3003 P10
Wall penetrations must be water-
proofed and adequately insulated
P1
Heat pump - external device P11
Concrete pedestal for the device
P3
Electrical cabinet P12
Condensate drainage (must be routed
into the sink or rain water drain)
P4
The closing valve with exhaust has to be installed
lower than the pipe connections on the device P13
Sink
P5
Power cable - external control unit P14
Magnetic separator of impurities
P6
Power cable - internal control unit P15
Rubber - compensators
P7
Communication cable - connection between
external and internal unit P16
Frost limit (depending on the
geographical location)

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Devices for external installation must be placed on a level concrete foundation (chapter 4.2.4). For exact
position and dimensions of pipe connections, see dimensional drawings of the device (chapter 7.1).
Along with pipes for the hydraulic connection, install also pipes with wire rope (it is advisable to separate
the power / sensors). This wire rope is used to pull the device’s power supply cable from the DHW room
and the communication FTP cable for controlling the device. For the appropriate diameter of the power
cable, see technical data (chapter 7.2).
Make a sink for the condensate forming in the evaporator of the device underneath the concrete
foundation. The sink must be under the frost limit to ensure unobstructed drainage. The pipe for
condensate drainage must be installed lower than the hardware connections of the DHW room and
device. It can also be routed to the rain water sink; in this case freezing of the pipe must be prevented.
WARNING
If the condensate drainage is fed to faecal sewage, a suitable syphon must be installed on
the drainage pipe. Otherwise, the presence of ammonia can lead to corrosion of vital parts
of the device and malfunction of the device.
4.2 Location of the device
CAUTION
The concrete pedestal must carry the weight of the device. See technical
information.
The device must be screwed to the concrete pedestal because of the possibility of
strong gusts of wind.
The device must be levelled
NOTE
It is obligatory to consider the minimal clearance from obstacles for ensuring unobstructed
access for maintenance and service of the device.
NOTE
The location of the device has to be accessible with manual transport devices to ensure
undisturbed delivery of replacement parts and equipment for maintenance and servicing.
Costs connected with hiring special equipment for installing the device, servicing and
maintenance are charged the operator separately and are not subject of the warranty.
The device must not be set up at a location which is subject to stronger and lengthy gusts of wind (i.e.
bora wind); they could obstruct the normal air circulation through the evaporator which could result in
disruptions in operation.
In case the device is installed in the wind direction, it is necessary to install adequate wind protection.
Wind protection must be robust enough to prevent the influence of the wind. The best option is
a concrete or brick version.
The height and width of the wind protection must be at least 150% of the basic dimensions of
the device. Only these dimensions enable adequate wind protection of the device.

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The wind protection must be located at least 3000 mm away from the external unit to ensure
sufficient air flow.
NOTE
The device must be set up in a leeward location.
CAUTION
The device must be placed in such a manner that the external air temperature sensor is on
the shady side.
NOTE
Salt or dust gathering on the outer heat conductor must be regularly cleaned (dust once
yearly and salt in coastal regions at least three times yearly) or rinsed with water.
T
Temperature sensor

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4.2.1 Minimal clearance from the device
Minimal clearances of the external device from walls for seamless operation, maintenance and
servicing.
WPL-45-K1 HT WPL-70-K1 HTT and WPL-90-K1 HTT
NOTE
In case of an insufficient clearance of the device from the building, moisture and rain drops
travelling with the air exhaust on the top of the device can damage the façade.
The clearances for the wall controller unit are listed in the documents:
Instructions for Installing the Basic Wall Control Unit TT3000 and
Instructions for Installing the Expansion Wall Control Unit TT3003.
4.2.2 Levelling of the device
It has to be made sure all the elements installed are placed perpendicularly to the ground as shown in
the scheme below: