Kronoterm WPG-07-1 HT Reference manual

Manual for Installation, Use and
Maintenance
For heat pumps earth-water and water-water
WPG-07-1 HT, WPG-10-1 HT
WPG-15-1 HT, WPG-18-1 HT
WPG-21-1 HT
The manual has to be handed over to the end user after installation.
ENG
Id.: 17-16-32-3048-01 | 7.2017

Manual for Installation, Use and Maintenance of the earth-water and water-water heat pump
WPG-07-1 HT, WPG-10-1 HT, WPG-15-1 HT, WPG-18-1 HT, WPG-21-1 HT
Id: 17-16-32-3048-00 | 7.2017
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.

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
2.3 Storing and warehousing of the device 11
2.4 Delivery package 11
2.5 Package and worn-out device management 12
3. Installation of the device 13
3.1 General 13
Minimal clearance from the device 15
Levelling of the device 15
Removal of the lid. 16
Set up and connection of the external sensor. 17
3.2 Heating system of machine installations 17
The scheme of the heating system 18
Preparing the heating hydraulic system - secondary 20
Charging of the heating system 22
Heat source - primary 24
Underground water - primary 24
3.3 Electrical connection 25
Description of elements in the electrical cabinet 26
Schematic display of the control system - TT3000 27
Connection of the internal control unit – TT3000 28
Electrical connection of the power cable 30
3.4 Basic input-output module MD1 - WPG 33
Connection of the elements to the internal control unit TT3000 34
Main circulation pump connection 36
Connecting heating cycle 2 (direct cycle - optional) 37
Connection of heating cycle 2 (optional) 37
DHW connection (optional) 40
Connection of the device’s remote on/off (optional) 41
External switch of heating/cooling (optional) 41
Connecting the cooling valve (optional) 42
Connecting the relay of the additional source DOVOG- gas/oil DHW (optional) 42
3.5 Connection of the room temperature corrector KT-1 and KT-2 43
4. Commissioning of the device 44
5. Maintenance 44

5.1 Cleaning the water filter 44
5.2 Monitoring the pressure in the heating system 44
5.3 Cleaning of the heat conductors 45
Cleaning of the heating system (water side) 45
5.4 Operation malfunctions 45
6. Technical data 46
6.1 Dimensions of the device 46
6.2 Technical data 47
6.3 Operating envelope 52
Heating mode 52
Cooling mode 52
6.4 Noise 53
6.5 Legend of data label 55

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.

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.
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
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 manufacturer and
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.

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.

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.