Herz commotherm 30 SW User manual

Operating instructions
commotherm SW/WW
brine/water
-
& water/water
-
heat pump

Introduction
2
INTRODUCTION
Your heating equipment is powered using HERZ heat pump equipment and we are delighted to be able to
welcome you int
o the large circle of satisfied operators of HERZ equipment. The HERZ heat pump is the
result of years of experience and continuous improvement. Please remember that in order to be able to work
properly, a well-
designed product also needs to be operated an
this documentation carefully –
you will find it worthwhile. Please pay particular attention to the safety notes. It
is a precondition of any warranty claim that all operating rules are maintained. In the event
defects, please contact your heating specialist or the HERZ Customer Service department.
Warranty / Guarantee (general information)
For HERZ -
heat pumps, we offer a 5 year or 10.000 compressor hours warranty on the closed refrigeration
circuit. As an option, the warranty can be extended (material warranty on the heat pump compressor) to 10
years. Extended warranty is valid only if the
For storage tanks and HERZ solar collectors come with a 5
from defects of mobile objects purchased for a period of 2 years, to a maximum of 6.000 h
For non-
moving purchased items, the guarantee is generally for a period of 3 years to a maximum for 9.000
hours of operation. Wearing parts are not covered by the guarantee/warranty. The warranty claim is
cancelled when missing commissio
prescribed fuel is used2.
Any claim to warranty services requires maintenance to be carried out on an annual basis by
specialist personnel authorised by HERZ.
The general warranty per
iod will not be extended if work is carried out under warranty. In the event of a
warranty claim, the due dates for payments owed to us will not be deferred. We will only provide a guarantee
if all the payments owed to us for the product supplied have been
The warranty will be carried out at our discretion by repairing the item purchased or replacing any defective
parts, by exchanging the item or by reducing the price. Parts or goods replaced are to be returned to us at
our request free of charge. Wag
es and costs paid out in connection with installation and removal are to be
paid for by the purchaser. The same applies to all warranty services.
The Supplier shall under no circumstances be liable to the Customer, for any direct, indirect or consequential
costs incurred by the Customer for works carried out on HERZ equipment.
This document is the translation from the German original. The reproduction or copying, even of extracts,
may only be undertaken with the permission of the company HERZ©.
Subject to technical modifications,
Version 04/2018
1 Maintenance by manufacturer
2
Recommended hydraulic diagrams can be found in the installation manual, while hydraulic balancing will be carried out by the
contractor.
Furthermore, the quality of the heating water must be in accordance with ÖNORM H 5195 (current version) or VD
Dear Customer!
Your heating equipment is powered using HERZ heat pump equipment and we are delighted to be able to
o the large circle of satisfied operators of HERZ equipment. The HERZ heat pump is the
result of years of experience and continuous improvement. Please remember that in order to be able to work
designed product also needs to be operated an
d maintained correctly. Please therefore read
you will find it worthwhile. Please pay particular attention to the safety notes. It
is a precondition of any warranty claim that all operating rules are maintained. In the event
defects, please contact your heating specialist or the HERZ Customer Service department.
Yours sincerely
HERZ – Energietechnik
Warranty / Guarantee (general information)
heat pumps, we offer a 5 year or 10.000 compressor hours warranty on the closed refrigeration
circuit. As an option, the warranty can be extended (material warranty on the heat pump compressor) to 10
years. Extended warranty is valid only if the
authorized service regular maintenance works are performed.
For storage tanks and HERZ solar collectors come with a 5
-
year warranty. We generally guarantee freedom
from defects of mobile objects purchased for a period of 2 years, to a maximum of 6.000 h
moving purchased items, the guarantee is generally for a period of 3 years to a maximum for 9.000
hours of operation. Wearing parts are not covered by the guarantee/warranty. The warranty claim is
cancelled when missing commissio
ning1
via a qualified personnel authorized of Herz as well as if not the
Any claim to warranty services requires maintenance to be carried out on an annual basis by
specialist personnel authorised by HERZ.
iod will not be extended if work is carried out under warranty. In the event of a
warranty claim, the due dates for payments owed to us will not be deferred. We will only provide a guarantee
if all the payments owed to us for the product supplied have been
made.
The warranty will be carried out at our discretion by repairing the item purchased or replacing any defective
parts, by exchanging the item or by reducing the price. Parts or goods replaced are to be returned to us at
es and costs paid out in connection with installation and removal are to be
paid for by the purchaser. The same applies to all warranty services.
The Supplier shall under no circumstances be liable to the Customer, for any direct, indirect or consequential
costs incurred by the Customer for works carried out on HERZ equipment.
This document is the translation from the German original. The reproduction or copying, even of extracts,
may only be undertaken with the permission of the company HERZ©.
Recommended hydraulic diagrams can be found in the installation manual, while hydraulic balancing will be carried out by the
Furthermore, the quality of the heating water must be in accordance with ÖNORM H 5195 (current version) or VD
Your heating equipment is powered using HERZ heat pump equipment and we are delighted to be able to
o the large circle of satisfied operators of HERZ equipment. The HERZ heat pump is the
result of years of experience and continuous improvement. Please remember that in order to be able to work
d maintained correctly. Please therefore read
you will find it worthwhile. Please pay particular attention to the safety notes. It
is a precondition of any warranty claim that all operating rules are maintained. In the event
of any faults or
defects, please contact your heating specialist or the HERZ Customer Service department.
heat pumps, we offer a 5 year or 10.000 compressor hours warranty on the closed refrigeration
circuit. As an option, the warranty can be extended (material warranty on the heat pump compressor) to 10
authorized service regular maintenance works are performed.
year warranty. We generally guarantee freedom
from defects of mobile objects purchased for a period of 2 years, to a maximum of 6.000 h
ours of operation.
moving purchased items, the guarantee is generally for a period of 3 years to a maximum for 9.000
hours of operation. Wearing parts are not covered by the guarantee/warranty. The warranty claim is
via a qualified personnel authorized of Herz as well as if not the
Any claim to warranty services requires maintenance to be carried out on an annual basis by
iod will not be extended if work is carried out under warranty. In the event of a
warranty claim, the due dates for payments owed to us will not be deferred. We will only provide a guarantee
The warranty will be carried out at our discretion by repairing the item purchased or replacing any defective
parts, by exchanging the item or by reducing the price. Parts or goods replaced are to be returned to us at
es and costs paid out in connection with installation and removal are to be
The Supplier shall under no circumstances be liable to the Customer, for any direct, indirect or consequential
This document is the translation from the German original. The reproduction or copying, even of extracts,
Recommended hydraulic diagrams can be found in the installation manual, while hydraulic balancing will be carried out by the
heating
Furthermore, the quality of the heating water must be in accordance with ÖNORM H 5195 (current version) or VD
I 2035.

TABLE OF CONTENT
1
NOTES ON DOCUMENTATI
1.1 General notes
................................
1.2 Symbols
................................
2 SAFETY NOTES
................................
2.1 Warning notes
................................
2.2 Installation
................................
2.3
Operation and maintenance
2.3.1 Operation
................................
2.3.2 Maintenance
................................
3
INFORMATION OF THE D
3.1 Intended use
................................
3.2 Type label
................................
3.3 Care and cleaning
................................
4
MODE OF OPERATION
4.1 Refrigerant
................................
4.1.1 Characteri
stics of the refrigerant
4.1.2
Measusres when refrigerant escapes
4.1.3
First aid measures contact with refrigerant
4.2 Safety devices
................................
4.2.1 Low pressure switch
................................
4.2.2 High pressure switch
................................
4.3
Operation conditions to be maintained
4.3.1 Permissible temperatures
4.3.2 Flow rate
................................
5
OPERATING CONDITIONS
6
TEMPERATURE MANAGER
7 T-CONTROL
................................
7.1 Starting the system
................................
7.2 Operation and handling
................................
7.3 Main menu
................................
7.4 Symbols explanation
................................
TABLE OF CONTENT
NOTES ON DOCUMENTATI
ON ................................
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Operation and maintenance
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INFORMATION OF THE D
EVICE
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MODE OF OPERATION
................................
................................
................................
................................................................
................................
stics of the refrigerant
................................................................
................................
Measusres when refrigerant escapes
................................
................................
First aid measures contact with refrigerant
................................
................................
................................
................................
................................
................................
................................
................................
................................
................................
................................
Operation conditions to be maintained
................................
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................................................................
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OPERATING CONDITIONS
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TEMPERATURE MANAGER
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TABLE OF CONTENT
3
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TABLE OF CONTENT
4
7.5 Code – entry
................................
7.6 Date and time selection
................................
7.7
Determining main menu values
7.7.1 Adding main
menu display values
7.7.2
Deleting main menu display values
7.8
Fault messages and warnings
7.9 Module overview
................................
7.10
Module structure and navigation to the most important settings
7.10.1 Heat pump module
................................
7.10.1.1
Switching on the heat pump
7.10.1.2
Switching off the heat pump
7.10.1.3
Further menu structure
7.10.2 Hot water tank module
................................
7.10.3 Buffer module
................................
7.10.4 Heating circuit module
................................
7.10.5 Time mode
................................
7.10.6 Solar module
................................
7.10.7 Hydraulic compensator
................................
7.10.8 Net pump
................................
7.10.9 Zone valve
................................
7.10.10
External requirement module
7.10.11
Additional boiler module external
7.11 Menu settings
................................
7.11.1 Network configuration
................................
7.11.2 Modbus – settings
................................
7.11.3 Screensaver
................................
7.11.4 Information overview
................................
7.11.5 Sending E-mails
................................
7.11.6 E-Mail status report
................................
7.11.7 Server settings
................................
8 FAULT
REPORTS AND THEIR CO
9
EC/EU DECLARATION OF
10 NOTES
................................
................................
................................................................
................................
................................
................................
................................
Determining main menu values
................................................................
................................
menu display values
................................................................
................................
Deleting main menu display values
................................
................................
Fault messages and warnings
................................................................
................................
................................
................................
................................
Module structure and navigation to the most important settings
................................
................................
................................
................................
Switching on the heat pump
................................
................................
Switching off the heat pump
................................
................................
Further menu structure
................................................................
................................
................................
................................
................................
................................
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External requirement module
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Additional boiler module external
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REPORTS AND THEIR CO
RRECTIONS
.............................
EC/EU DECLARATION OF
CONFORMITY
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76

1
NOTES ON DOCUMENTATI
1.1 General notes

Before commissioning, please read the documentation carefully and pay attention to the safety
instructions given in particular (see chapter

Make sure that you understand the instructions contained in this manual and that you are sufficiently
informed regarding the way in which the system works. Should you have any queries at any time,
please do n
ot hesitate to contact HERZ.

For safety reasons, the owner of the system must not make any changes to the construction or the
state of the system without consulting the manufacturer or his authorised representative.

All connections are to be checked before
they are leak-tight.
 A portable fire-
extinguisher of the prescribed size is to be kept by the boiler room.
relevant national regulations).

Carry out maintenance regularly or use o
explained in chapter 3.3 !

When carrying out maintenance on the system or opening the control unit, the power
disconnected and the generally valid safety regulations are to be heeded.

It is also not permitted for objects which are not required for the purpose of operating or carrying out
maintenance on the system to be kept in the boiler room.

Should you have any queries, please call us on +43 3357 / 42840

Initial commissioning must be carried out by the HERZ Customer Service department
specialist (otherwise any warranty claim will not be applicable).
1.2 Symbols
The symbols
used on the device and/or used in this documentation have the following meaning:
Pictogram
Signal word
Documentation
Note
Warning note
Electric
voltage
Hot surface
Notes on documentation
NOTES ON DOCUMENTATI
ON
Before commissioning, please read the documentation carefully and pay attention to the safety
instructions given in particular (see chapter
2). Ple
ase consult this manual if anything is unclear.
Make sure that you understand the instructions contained in this manual and that you are sufficiently
informed regarding the way in which the system works. Should you have any queries at any time,
ot hesitate to contact HERZ.
For safety reasons, the owner of the system must not make any changes to the construction or the
state of the system without consulting the manufacturer or his authorised representative.
All connections are to be checked before
the commissioning of the system in order to make sure that
extinguisher of the prescribed size is to be kept by the boiler room.
relevant national regulations).
Carry out maintenance regularly or use o
ur Customer Service department.
The maintenance work is
When carrying out maintenance on the system or opening the control unit, the power
disconnected and the generally valid safety regulations are to be heeded.
It is also not permitted for objects which are not required for the purpose of operating or carrying out
maintenance on the system to be kept in the boiler room.
Should you have any queries, please call us on +43 3357 / 42840
-840.
Initial commissioning must be carried out by the HERZ Customer Service department
specialist (otherwise any warranty claim will not be applicable).
used on the device and/or used in this documentation have the following meaning:
Meaning
Reference to other documentation!
Important Note!
Notice of a dangerous situation!
Danger of electrical voltage!
Caution – hot surface
Notes on documentation
1
5
Before commissioning, please read the documentation carefully and pay attention to the safety
ase consult this manual if anything is unclear.
Make sure that you understand the instructions contained in this manual and that you are sufficiently
informed regarding the way in which the system works. Should you have any queries at any time,
For safety reasons, the owner of the system must not make any changes to the construction or the
state of the system without consulting the manufacturer or his authorised representative.
the commissioning of the system in order to make sure that
extinguisher of the prescribed size is to be kept by the boiler room.
(Please heed the
The maintenance work is
When carrying out maintenance on the system or opening the control unit, the power
supply is to be
It is also not permitted for objects which are not required for the purpose of operating or carrying out
Initial commissioning must be carried out by the HERZ Customer Service department
or an authorised
used on the device and/or used in this documentation have the following meaning:

1
Notes on documentation
6
Pictogram
Signal word
Hand injuries.
Admittance
Notes on documentation
Meaning
Warning – against hand injuries.
No admittance without authorisation.

2 SAFETY NOTES
2.1 Warning notes
Risk of injury and damage to property due to improper handling of the system.
to property is possible.
However, adherence to guidelines for transportation, installation, operation and maintenance notices as well
as technical data (in the operating
are not specifically highlighted, is also vital to avoid breakdowns which may directly or indirectly cause major
personal or material damage.
General note
For reasons of clarity and possible permutations, this documentation does not contain all detailed information
and cannot take account of every conceivable operating or maintenance scenario. Should you require further
information or encounter specific prob
you can obtain the required information from your specialist dealer or direct from HERZ.
People (including children) who, because of their physical, sensory or mental capabilities or bec
lack of experience or knowledge, are unable to use the equipment safely must not use this equipment unless
they are supervised or instructed by a responsible person.
Basic safety information
Due to its functionally limited electrical and me
usage, operation and maintenance, if the equipment is not able to work according to its
appropriate use or improper interference occurs, it may cause serious health and
material damage. It is therefore conditional th
installations, transportation, operation and maintenance will be carried out and
supervised by responsible, qualified persons.
When operating electrical systems, certain parts of those systems will always carry
hazardous electrical voltage or be exposed to a mechanical load. Only appropriately
qualified personnel may carry out work on the system. They must be thoroughly familiar
with the content of this and all other manuals. In order for this system to functio
and without any problems, transportation, storage, operation and maintenance must be
carried out properly and carefully. Instructions and information on the systems must also
be heeded.
2.2 Installation
In order to ensure that the system will functio
installation instructions are to be heeded during the installation of the system!
Documents from the manufacturer relating to the heating devices and components used are available from
HERZ on request.
2.3
Operation and maintenance
In order for the system to be operated and maintained safely, it must be operated and
maintained properly by qualified personnel while heeding the warnings in this
documentation and the instructions on the systems.
Safety notes
Risk of injury and damage to property due to improper handling of the system.
to property is possible.
However, adherence to guidelines for transportation, installation, operation and maintenance notices as well
instructions, product documentation and on the equipment itself) which
are not specifically highlighted, is also vital to avoid breakdowns which may directly or indirectly cause major
For reasons of clarity and possible permutations, this documentation does not contain all detailed information
and cannot take account of every conceivable operating or maintenance scenario. Should you require further
information or encounter specific prob
lems, which are not handled in detail in the documentation supplied,
you can obtain the required information from your specialist dealer or direct from HERZ.
People (including children) who, because of their physical, sensory or mental capabilities or bec
lack of experience or knowledge, are unable to use the equipment safely must not use this equipment unless
they are supervised or instructed by a responsible person.
Due to its functionally limited electrical and me
chanical characteristics with regard to
usage, operation and maintenance, if the equipment is not able to work according to its
appropriate use or improper interference occurs, it may cause serious health and
material damage. It is therefore conditional th
at the planning and implementation of all
installations, transportation, operation and maintenance will be carried out and
supervised by responsible, qualified persons.
When operating electrical systems, certain parts of those systems will always carry
hazardous electrical voltage or be exposed to a mechanical load. Only appropriately
qualified personnel may carry out work on the system. They must be thoroughly familiar
with the content of this and all other manuals. In order for this system to functio
and without any problems, transportation, storage, operation and maintenance must be
carried out properly and carefully. Instructions and information on the systems must also
In order to ensure that the system will functio
n properly, the relevant standards and the manufacturer’s
installation instructions are to be heeded during the installation of the system!
Documents from the manufacturer relating to the heating devices and components used are available from
Operation and maintenance
In order for the system to be operated and maintained safely, it must be operated and
maintained properly by qualified personnel while heeding the warnings in this
documentation and the instructions on the systems.
Safety notes
2
7
Risk of injury and damage to property due to improper handling of the system.
Damage
However, adherence to guidelines for transportation, installation, operation and maintenance notices as well
instructions, product documentation and on the equipment itself) which
are not specifically highlighted, is also vital to avoid breakdowns which may directly or indirectly cause major
For reasons of clarity and possible permutations, this documentation does not contain all detailed information
and cannot take account of every conceivable operating or maintenance scenario. Should you require further
lems, which are not handled in detail in the documentation supplied,
you can obtain the required information from your specialist dealer or direct from HERZ.
People (including children) who, because of their physical, sensory or mental capabilities or bec
ause of their
lack of experience or knowledge, are unable to use the equipment safely must not use this equipment unless
chanical characteristics with regard to
usage, operation and maintenance, if the equipment is not able to work according to its
appropriate use or improper interference occurs, it may cause serious health and
at the planning and implementation of all
installations, transportation, operation and maintenance will be carried out and
When operating electrical systems, certain parts of those systems will always carry
a
hazardous electrical voltage or be exposed to a mechanical load. Only appropriately
qualified personnel may carry out work on the system. They must be thoroughly familiar
with the content of this and all other manuals. In order for this system to functio
n safely
and without any problems, transportation, storage, operation and maintenance must be
carried out properly and carefully. Instructions and information on the systems must also
n properly, the relevant standards and the manufacturer’s
Documents from the manufacturer relating to the heating devices and components used are available from
In order for the system to be operated and maintained safely, it must be operated and
maintained properly by qualified personnel while heeding the warnings in this

2 Safety notes
8
2.3.1 Operation
Covers which prevent contact with hot or rotating parts or which are required in order to
direct the flow of air correctly and thus ensure the effective functioning of the system
must not be opened during operation.
In the event of a fault or unusual operating condidtions the unit need to be switched off
immediately.
Notify the HERZ Customer Service department immediately.
The generated system noise during operation does not present any danger to the
operator´s hea
lth.
2.3.2 Maintenance
Before starting to carry out any work on the system, but especially before opening
covers protecting live parts, the system is to be properly disconnected from the power
supply. Besides the main circuits, attention is also to be paid to
auxiliary circuits in the process.
The normal safety rules according to ÖNORM are:

Disconnect all poles and all sides!

Ensure that the system cannot be switched on again!

Check to ensure that no voltage is connected!
 Earth and short-circuit!

Cover adjacent live parts and locate hazardous areas!
These above-
mentioned measures must not be reversed until the system has been fully
installed and maintenance has been completed.
In order to prevent any maintenance errors, if maintenance is not carried out properly, it is recommended to
be carried out regularly by authorised personnel or by the HERZ Customer Service department.
Spare parts must be obtained directly from the manufa
be exposed to any health risks as a result of the noise generated by the machine.
Covers which prevent contact with hot or rotating parts or which are required in order to
direct the flow of air correctly and thus ensure the effective functioning of the system
must not be opened during operation.
In the event of a fault or unusual operating condidtions the unit need to be switched off
Notify the HERZ Customer Service department immediately.
The generated system noise during operation does not present any danger to the
lth.
Before starting to carry out any work on the system, but especially before opening
covers protecting live parts, the system is to be properly disconnected from the power
supply. Besides the main circuits, attention is also to be paid to
any existing additional or
auxiliary circuits in the process.
The normal safety rules according to ÖNORM are:
Disconnect all poles and all sides!
Ensure that the system cannot be switched on again!
Check to ensure that no voltage is connected!
Cover adjacent live parts and locate hazardous areas!
mentioned measures must not be reversed until the system has been fully
installed and maintenance has been completed.
In order to prevent any maintenance errors, if maintenance is not carried out properly, it is recommended to
be carried out regularly by authorised personnel or by the HERZ Customer Service department.
Spare parts must be obtained directly from the manufa
cturer or a distribution partner. The customer will not
be exposed to any health risks as a result of the noise generated by the machine.
Covers which prevent contact with hot or rotating parts or which are required in order to
direct the flow of air correctly and thus ensure the effective functioning of the system
In the event of a fault or unusual operating condidtions the unit need to be switched off
Notify the HERZ Customer Service department immediately.
The generated system noise during operation does not present any danger to the
Before starting to carry out any work on the system, but especially before opening
covers protecting live parts, the system is to be properly disconnected from the power
any existing additional or
mentioned measures must not be reversed until the system has been fully
In order to prevent any maintenance errors, if maintenance is not carried out properly, it is recommended to
be carried out regularly by authorised personnel or by the HERZ Customer Service department.
cturer or a distribution partner. The customer will not

3
INFORMATION OF THE D
3.1 Intended use
The commotherm heat pumps may only be used for
 Heating
 Hot water preparation.
Any other use is not considered as intended.
In addition, the device may only be used within its technical range of application! The
technical area of application is shown in the assemby instructions!
To the intended use of the device the following also

Recognition of the assembly instruction and electrical documentation

other applicable documents

Care and maintenance conditions (see chapter
3.2 Type label
The type label is located on the back side of the heat pump. The type label shows item number, production
number, heating power, application area, etc.
3.3 Care and cleaning

The care of the cover parts of the heat pump can be performed with a damp cloth and commercially
available cleaning agents.
 Do not use cleaning
products that contaon abrasives, acids and/or chlorine. These products could destroy
the surface of the cover parts and it is possible that damages can occur on the heat pump.
Information of the device
INFORMATION OF THE D
EVICE
The commotherm heat pumps may only be used for
Any other use is not considered as intended.
In addition, the device may only be used within its technical range of application! The
technical area of application is shown in the assemby instructions!
To the intended use of the device the following also
applies:
Recognition of the assembly instruction and electrical documentation
other applicable documents
Care and maintenance conditions (see chapter
3.3)
The type label is located on the back side of the heat pump. The type label shows item number, production
number, heating power, application area, etc.
(see figure 3. 1).
figure 3. 1: Type label (Symbol)
The care of the cover parts of the heat pump can be performed with a damp cloth and commercially
products that contaon abrasives, acids and/or chlorine. These products could destroy
the surface of the cover parts and it is possible that damages can occur on the heat pump.
Information of the device
3
9
In addition, the device may only be used within its technical range of application! The
technical area of application is shown in the assemby instructions!
Recognition of the assembly instruction and electrical documentation
The type label is located on the back side of the heat pump. The type label shows item number, production
The care of the cover parts of the heat pump can be performed with a damp cloth and commercially
-
products that contaon abrasives, acids and/or chlorine. These products could destroy
the surface of the cover parts and it is possible that damages can occur on the heat pump.

4 Mode of operation
10
4
MODE OF OPERATION
figure 4. 1
shows the cooling circuit of the commotherm SW/WW
components.
A refrigerant circulates and run through various changes of state
absorbs energy
resp. heat from the heat source "soil" or "water", which is supplied by a source pump (2)
and evaporates. The temperature-
level by the compressor (4). In the condenser (6) the heat
refrigerant becomes liquid. In the refrigerant accumulator (8) the liquefied working medium is collected. The
remaining gas fraction is retained and only the liquid refrigerant passes the filter dryer (9) and t
(10). With help of the expanison valve (11) the refrigerant is transported to a lower temperature
pressure-
niveau. At this point the cycle is closed now and starts all over again. The low (3) and high
pressure switch (5) serves as a safe
remain within the defined range.
figure 4. 1
: Functionality of the commotherm SW/WW heat pump
1 Evaporator
2 Source pump
3 Low pressure switch
4 Compressor
5 High pressure switch
6 Condenser pump
7 Condenser
MODE OF OPERATION
shows the cooling circuit of the commotherm SW/WW
-
heat pump with its most important
A refrigerant circulates and run through various changes of state
: In the evaporator (1) the refrigerant
resp. heat from the heat source "soil" or "water", which is supplied by a source pump (2)
and pressure-
niveau of the steamed refrigerant is rises up to a higher
level by the compressor (4). In the condenser (6) the heat
is transferred to the heating system and the
refrigerant becomes liquid. In the refrigerant accumulator (8) the liquefied working medium is collected. The
remaining gas fraction is retained and only the liquid refrigerant passes the filter dryer (9) and t
(10). With help of the expanison valve (11) the refrigerant is transported to a lower temperature
niveau. At this point the cycle is closed now and starts all over again. The low (3) and high
pressure switch (5) serves as a safe
ty device which ensures that the pressures in the refrigeration circuit
: Functionality of the commotherm SW/WW heat pump
8 Refrigerant accumulator
9 Filter dryer
10 Sight glass
11 Expansion valve
heat pump with its most important
: In the evaporator (1) the refrigerant
resp. heat from the heat source "soil" or "water", which is supplied by a source pump (2)
niveau of the steamed refrigerant is rises up to a higher
is transferred to the heating system and the
refrigerant becomes liquid. In the refrigerant accumulator (8) the liquefied working medium is collected. The
remaining gas fraction is retained and only the liquid refrigerant passes the filter dryer (9) and t
he sight glas
(10). With help of the expanison valve (11) the refrigerant is transported to a lower temperature
- and
niveau. At this point the cycle is closed now and starts all over again. The low (3) and high
ty device which ensures that the pressures in the refrigeration circuit

The HERZ SW/WW heat pump is an “electrically
R410A”. An electrically driven compressor compresses and feeds the refrigerant through a pipe circuit
consisting of copper pipes, whereby pressure up to 43 bar may arise.
The device is under voltage. Removing the device
equipment parts may lead to serious physical harm.
The refrigerant supplied can affect surfaces of the equipment parts (pipes and
compressor) at temperatures of more than 100° C (
Therfore:
Work on equipment parts as well
qualified specialists.
4.1 Refrigerant
Generally, what is understood by a refrigerant is a working material for heat pumps or cooling machines. A
refrigerant circulates and run through various
The HERZ commotherm SW/WW heat pump works with the refrigerant R410A, which consists of the
following components:
 50% -
Pentafluorethane (R125)
 50% - Difluormethane (R32)
4.1.1
Characteristics of the refrigerant
According to ÖNORM EN378-
1 refrigerants are divi
Classification according to flammability
Group 1: No flame propagation
Group 2: Lower flammability
Group 3: Greater flammability
Table 4. 1
shows the position of the refrigerant, R410A, used in safety group A1.
Table 4. 1
Table 5.1: Safety group for the used refrigeratn R410A
Greater flammability
Lower flammability
No flame propagation
Other characteristics are:
 Ozone reduction potential: 0
 Boiling temperature: -
48,5 °C
Mode of operation
The HERZ SW/WW heat pump is an “electrically
-
driven compression heat pump with the
R410A”. An electrically driven compressor compresses and feeds the refrigerant through a pipe circuit
consisting of copper pipes, whereby pressure up to 43 bar may arise.
The device is under voltage. Removing the device
casing as well as wo
equipment parts may lead to serious physical harm.
The refrigerant supplied can affect surfaces of the equipment parts (pipes and
compressor) at temperatures of more than 100° C (

risk of burning).
Work on equipment parts as well
as electrical cabling may only be carried out by
qualified specialists.
Generally, what is understood by a refrigerant is a working material for heat pumps or cooling machines. A
refrigerant circulates and run through various
changes of state.
The HERZ commotherm SW/WW heat pump works with the refrigerant R410A, which consists of the
Pentafluorethane (R125)
Characteristics of the refrigerant
1 refrigerants are divi
ded up into groups with regard to health and safety:
Classification according to flammability
Classification according to toxicity
Group A: Lower toxicity
Group B: Higher toxicity
shows the position of the refrigerant, R410A, used in safety group A1.
Table 5.1: Safety group for the used refrigeratn R410A
Safety group
Greater flammability
A3
Lower flammability
A2
No flame propagation
A1
Lower toxicity
48,5 °C
Mode of operation
4
11
driven compression heat pump with the
refrigerant,
R410A”. An electrically driven compressor compresses and feeds the refrigerant through a pipe circuit
casing as well as wo
rking on the
The refrigerant supplied can affect surfaces of the equipment parts (pipes and
risk of burning).
as electrical cabling may only be carried out by
Generally, what is understood by a refrigerant is a working material for heat pumps or cooling machines. A
The HERZ commotherm SW/WW heat pump works with the refrigerant R410A, which consists of the
ded up into groups with regard to health and safety:
Classification according to toxicity
B3
B2
B1
Higher toxicity

4 Mode of operation
12
4.1.2
Measusres when refrigerant escapes
If refrigerant escapes, fast evaporation of the fluid may cause frostbite. Steam is also heavier than air, which
may lead to suffocation due to displacement of oxygen in the air. If an escape of r
heard to escape, icing over of the exit point), the following measures should be taken:

Ensure there is adequate ventilation!

Close and seal the door to the room where the equipment is located.

Notify HERZ service or customer s

People must leave the room where the equipment is located straight away.

Consult the doctor or veterinarian if people or animals were exposed to an increased dose for a long
period!

Switch off the power immediately!

In the event of fire, any type o
There is no risk of the R410A refrigerant escaping if the HERZ heat pump is used
correctly. If there is an escape of refigerant due to improper use, there is a risk of
suffocation (air displacement) and frostbite (exit points may become extremely cold). In
chapter 4.1.3
additional first aid measures for contact with refrigerant are described.
4.1.3
First aid measures contact with refrigerant
General 
In the event of unconsci
advice.
Tips 
Never allow an unconscious person to take in anything by mouth.

With irregular breathing or if breathing stops, try artificial respiration.
persist, seek medical advice.
Inhalation 
Take the person out of the contaminated area

Respiration with breathing apparatus or oxygen supply

In the event of difficulties with breathing or nerve problems, seek medical advice

Go into the fresh air
Contact with the
eyes
 Open the
eyelids wide to vaporise the agent

Rinse the eyes out with flowing water for a few minutes, opening the eyelids wide

In the event of continuing sore eyes, seek medical advice
Contact with the
skin

Vaporise the agent

Rinse with lukewarm water

If
soreness continues or the skin is red, seek medical advice

Remove soiled or soaked clothing immediately
Never remove refrigerant, never let it escape or never add additional refrigerant by
yourself. This is a risk to humans, animals, the environment a
Measusres when refrigerant escapes
If refrigerant escapes, fast evaporation of the fluid may cause frostbite. Steam is also heavier than air, which
may lead to suffocation due to displacement of oxygen in the air. If an escape of r
efrigerant is noticed (it is
heard to escape, icing over of the exit point), the following measures should be taken:
Ensure there is adequate ventilation!
Close and seal the door to the room where the equipment is located.
Notify HERZ service or customer s
ervice!
People must leave the room where the equipment is located straight away.
Consult the doctor or veterinarian if people or animals were exposed to an increased dose for a long
Switch off the power immediately!
In the event of fire, any type o
f fire extinguisher may be used!
There is no risk of the R410A refrigerant escaping if the HERZ heat pump is used
correctly. If there is an escape of refigerant due to improper use, there is a risk of
suffocation (air displacement) and frostbite (exit points may become extremely cold). In
additional first aid measures for contact with refrigerant are described.
First aid measures contact with refrigerant
In the event of unconsci
ousness, place carefully on the side and seek medical
Never allow an unconscious person to take in anything by mouth.
With irregular breathing or if breathing stops, try artificial respiration.
persist, seek medical advice.
Take the person out of the contaminated area
Respiration with breathing apparatus or oxygen supply
In the event of difficulties with breathing or nerve problems, seek medical advice
Go into the fresh air
eyelids wide to vaporise the agent
Rinse the eyes out with flowing water for a few minutes, opening the eyelids wide
In the event of continuing sore eyes, seek medical advice
Vaporise the agent
Rinse with lukewarm water
soreness continues or the skin is red, seek medical advice
Remove soiled or soaked clothing immediately
Never remove refrigerant, never let it escape or never add additional refrigerant by
yourself. This is a risk to humans, animals, the environment a
nd the device itself.
If refrigerant escapes, fast evaporation of the fluid may cause frostbite. Steam is also heavier than air, which
efrigerant is noticed (it is
heard to escape, icing over of the exit point), the following measures should be taken:
Consult the doctor or veterinarian if people or animals were exposed to an increased dose for a long
There is no risk of the R410A refrigerant escaping if the HERZ heat pump is used
correctly. If there is an escape of refigerant due to improper use, there is a risk of
suffocation (air displacement) and frostbite (exit points may become extremely cold). In
additional first aid measures for contact with refrigerant are described.
ousness, place carefully on the side and seek medical
Never allow an unconscious person to take in anything by mouth.
With irregular breathing or if breathing stops, try artificial respiration.
If complaints
In the event of difficulties with breathing or nerve problems, seek medical advice
Rinse the eyes out with flowing water for a few minutes, opening the eyelids wide
Never remove refrigerant, never let it escape or never add additional refrigerant by
nd the device itself.

4.2 Safety devices
The pressures in the commotherm SW/WW heat pump should remain within a define range. To ensure this,
so-
called pressure switches are built in. These serve on the one hand as a safety
hand to ensure that the heat pump works in the defined range. The pressure switches are designed as
chamber pressure switches, i.e. the set, adjusted pressures cannot be reset by unauthorised persons. The
pressure switches are als
o used as low or high pressure switches.
below.
4.2.1 Low pressure switch
The low pressure switch turns off the compressor at an operating pressure of < 1 bar and therefore protects
this at low pressure (low pressure may be ca
4.2.2 High pressure switch
High pressure switches also serve to switch off the compressor in an emergency. In contrast with low
pressure switches, however, this turns off the compressor at a higher pressure. In the ev
heat pump this occurs at pressures of > 42 bar.
4.3
Operation conditions to be maintained
Some important operating conditions are described below, which must be adhered to. In addition,
Table 4. 2
summarizes an overview of the operating conditions to be observed.
Table 4. 2
Table 4.2 also gives a summary on avoiding faults, if these conditions are not adhered to.
4.3.1 Permissible temperatures
Flow temperature
The heat pump should be operated with a maximum flow temperature of 55° C. If a flow temperature of more
than 55° C is selected, the heat pump works inefficiently. In addition, the compressor is heavily loaded and
the system is constantly on failure.
In general, the flow temperature should actually be adapted to the actual operating temperatures and be set
as low as possible.
Temperature of the brine
The temperature of the brine shouldn't be lower than
the can freeze.
4.3.2 Flow rate
No flow rate for heating equipment
If there is no flow rate in the heating equipment, the system will be extremely overloaded until release of the
safety device, in this case the high pressure switch. The water flow
therefore be checked.
No flow rate for brine equipment
If there is no flow rate on the brine equipment, the system will be extremely loaded until release of the safety
device, in this case the low pressure switch. In additio
exchanger and subsequent escape of refrigerant can take place. In the worst case, the device is destroyed
and must be replaced! A remedy here, in turn, a control of the brine flow and the system pressur
check of the frost resistance (at least
No ground water flow (only for WW
If there is no flow rate on the brine equipment, the system will be extremely loaded until release of the safety
device, in this case the low pressure switch
exchanger is possible. Compensation is provided by a control of the warer flow rate, the system pressure
and the groundwater supply system, a cleaning of the filter and an annual maintenance of
pump.
In addition, Table 4. 2
summarizes an overview of the operating conditions to be observed.
Mode of operation
The pressures in the commotherm SW/WW heat pump should remain within a define range. To ensure this,
called pressure switches are built in. These serve on the one hand as a safety
device, and on the other
hand to ensure that the heat pump works in the defined range. The pressure switches are designed as
chamber pressure switches, i.e. the set, adjusted pressures cannot be reset by unauthorised persons. The
o used as low or high pressure switches.
These devices are briefly described
The low pressure switch turns off the compressor at an operating pressure of < 1 bar and therefore protects
this at low pressure (low pressure may be ca
used by a lack of refrigerant, for example).
High pressure switches also serve to switch off the compressor in an emergency. In contrast with low
pressure switches, however, this turns off the compressor at a higher pressure. In the ev
heat pump this occurs at pressures of > 42 bar.
Operation conditions to be maintained
Some important operating conditions are described below, which must be adhered to. In addition,
summarizes an overview of the operating conditions to be observed.
Table 4.2 also gives a summary on avoiding faults, if these conditions are not adhered to.
The heat pump should be operated with a maximum flow temperature of 55° C. If a flow temperature of more
than 55° C is selected, the heat pump works inefficiently. In addition, the compressor is heavily loaded and
In general, the flow temperature should actually be adapted to the actual operating temperatures and be set
The temperature of the brine shouldn't be lower than
-
6°C. If it is lower, the machine will work in
No flow rate for heating equipment
If there is no flow rate in the heating equipment, the system will be extremely overloaded until release of the
safety device, in this case the high pressure switch. The water flow
rate and system pressure should
If there is no flow rate on the brine equipment, the system will be extremely loaded until release of the safety
device, in this case the low pressure switch. In additio
n, a freeze of the system and the device
exchanger and subsequent escape of refrigerant can take place. In the worst case, the device is destroyed
and must be replaced! A remedy here, in turn, a control of the brine flow and the system pressur
check of the frost resistance (at least
-15°C).
No ground water flow (only for WW
-devices)
If there is no flow rate on the brine equipment, the system will be extremely loaded until release of the safety
device, in this case the low pressure switch
. In addition, a freezing of the system and the external heat
exchanger is possible. Compensation is provided by a control of the warer flow rate, the system pressure
and the groundwater supply system, a cleaning of the filter and an annual maintenance of
summarizes an overview of the operating conditions to be observed.
Mode of operation
4
13
The pressures in the commotherm SW/WW heat pump should remain within a define range. To ensure this,
device, and on the other
hand to ensure that the heat pump works in the defined range. The pressure switches are designed as
chamber pressure switches, i.e. the set, adjusted pressures cannot be reset by unauthorised persons. The
These devices are briefly described
The low pressure switch turns off the compressor at an operating pressure of < 1 bar and therefore protects
used by a lack of refrigerant, for example).
High pressure switches also serve to switch off the compressor in an emergency. In contrast with low
pressure switches, however, this turns off the compressor at a higher pressure. In the ev
ent of the SW/WW
Some important operating conditions are described below, which must be adhered to. In addition,
In addition,
Table 4.2 also gives a summary on avoiding faults, if these conditions are not adhered to.
The heat pump should be operated with a maximum flow temperature of 55° C. If a flow temperature of more
than 55° C is selected, the heat pump works inefficiently. In addition, the compressor is heavily loaded and
In general, the flow temperature should actually be adapted to the actual operating temperatures and be set
6°C. If it is lower, the machine will work in
efficient and
If there is no flow rate in the heating equipment, the system will be extremely overloaded until release of the
rate and system pressure should
If there is no flow rate on the brine equipment, the system will be extremely loaded until release of the safety
n, a freeze of the system and the device
-inernal heat
exchanger and subsequent escape of refrigerant can take place. In the worst case, the device is destroyed
and must be replaced! A remedy here, in turn, a control of the brine flow and the system pressur
e and a
If there is no flow rate on the brine equipment, the system will be extremely loaded until release of the safety
. In addition, a freezing of the system and the external heat
exchanger is possible. Compensation is provided by a control of the warer flow rate, the system pressure
and the groundwater supply system, a cleaning of the filter and an annual maintenance of
the submersible
summarizes an overview of the operating conditions to be observed.

4 Mode of operation
14
Table 4. 2
: Overview of the operation conditions to be maintained
Fault source
Possible consequences
Flow temperature
> 55°C

Device works inefficiently

Device is constantly malfunctioning

Compressor is heavily
Temperature of the
brine
< -6°C

Device works inefficiently

Danger of freezing of the device
No flow rate for
heating equipment

The system will be extremely
overloaded
released (=high
No flow rate for
brine equipment

The system will be extremely
overloaded until the safety device is
released (=low pressure switch)

In addition, a freeze of the system
and the device
exchanger and subsequent escape
of refrigerant can take place.
 
In the worst case, the device is
destroyed and must be replaced!
No ground water
flow (only for WW-
devices)

The system will be extremely
overloaded until the safety
released (=low pressure switch)

A freezing of the system and the
external heat exchanger is possible.
: Overview of the operation conditions to be maintained
Possible consequences
Measures to avoid faults
Device works inefficiently
 Adapt
operating temperatures to
the actual
requirements and set as
low as possible
Device is constantly malfunctioning
Compressor is heavily
overloaded
Device works inefficiently
Danger of freezing of the device

Check brine flow

Possibly air in the device

System pressure is too low
The system will be extremely
overloaded
until the safety device is
released (=high
pressure switch)

With new systems, daily checking
of the water flow rate is required
(thereafter annually).
The system will be extremely
overloaded until the safety device is
released (=low pressure switch)
In addition, a freeze of the system
and the device
-inernal heat
exchanger and subsequent escape
of refrigerant can take place.
In the worst case, the device is
destroyed and must be replaced!

With new systems, daily
of the water flow rate and the
pressure of the system is required
(thereafter annually).

Annual check of frost protection
(at least -
15 ° C)
The system will be extremely
overloaded until the safety
device is
released (=low pressure switch)
A freezing of the system and the
external heat exchanger is possible.

With new systems, daily checking
of the water flow rate and the
pressure of the system is required
(thereafter annually).

Clean the filter
 Contr
ol of the groundwater
production system

Annual maintenance of the
submersible pump
Measures to avoid faults
operating temperatures to
requirements and set as
low as possible
Check brine flow
Possibly air in the device
System pressure is too low
With new systems, daily checking
of the water flow rate is required
(thereafter annually).
With new systems, daily
checking
of the water flow rate and the
pressure of the system is required
(thereafter annually).
Annual check of frost protection
15 ° C)
With new systems, daily checking
of the water flow rate and the
pressure of the system is required
(thereafter annually).
Clean the filter
ol of the groundwater
production system
Annual maintenance of the
submersible pump

5
OPERATING CONDITIONS
If the heat pump is in “heating operation” or “cooling operation” mode but there is no request from the
consumer, the operating
condition "ready" also appears
In this condition, the source and condenser pump start up and run for a pre
up circulation in both circuits.
In this condition, the heat pump run
In this condition, the heat pump is switched off but the source and condenser pump are still running in so
called pump stoppage to transport any residual heat / cold to the
continues according to the fixed set pump
A serious fault has occurred. The heat pump and all outputs are switched off too.
In an air / water heat pump, the evaporator, on which ice can form, is defrosted. This function may have
been triggered by the button "manual defrost" or by the automatic defrost process.
This condition indicates that the heat
taking heat and diverts this to the source, for example.
This condition serves as compressor protection. If the compressor is switched off and switched on again
straight
afterwards, the compressor only starts after minimal downtime, which may be, for example, 10
minutes. The “wait” condition is then displayed. The compressor may also only be started 6 times per
hour. If the compressor is started more frequently, it also re
This condition is reached when the flow temperature of the heat pump is greater than the set maxim
temperature (usually 55°C). To lower the flow temperature the condenser pump is switched on.
continues running until the maximum temperature is undershot.
Operating conditions
OPERATING CONDITIONS
Ready
If the heat pump is in “heating operation” or “cooling operation” mode but there is no request from the
condition "ready" also appears
Pump flow
In this condition, the source and condenser pump start up and run for a pre
-
set time.
Compressor
and heat or cooling consumer sends a request to the heat pump.
Stop
In this condition, the heat pump is switched off but the source and condenser pump are still running in so
called pump stoppage to transport any residual heat / cold to the
heat consumer. The pump stoppage
continues according to the fixed set pump
stopping time.
Fault
A serious fault has occurred. The heat pump and all outputs are switched off too.
Defrost
In an air / water heat pump, the evaporator, on which ice can form, is defrosted. This function may have
been triggered by the button "manual defrost" or by the automatic defrost process.
Cooling mode
This condition indicates that the heat
pump is cooling, i.e. the process is reversed and the system is
taking heat and diverts this to the source, for example.
Waiting
This condition serves as compressor protection. If the compressor is switched off and switched on again
afterwards, the compressor only starts after minimal downtime, which may be, for example, 10
minutes. The “wait” condition is then displayed. The compressor may also only be started 6 times per
hour. If the compressor is started more frequently, it also re
mains in “wait” operating condition.
Max. temp.
This condition is reached when the flow temperature of the heat pump is greater than the set maxim
temperature (usually 55°C). To lower the flow temperature the condenser pump is switched on.
continues running until the maximum temperature is undershot.
Operating conditions
5
15
Status 0
If the heat pump is in “heating operation” or “cooling operation” mode but there is no request from the
Status: 1
set time.
This serves to build
Status: 2
and heat or cooling consumer sends a request to the heat pump.
Status: 3
In this condition, the heat pump is switched off but the source and condenser pump are still running in so
-
heat consumer. The pump stoppage
Status: 4
Status: 5
In an air / water heat pump, the evaporator, on which ice can form, is defrosted. This function may have
Status: 6
pump is cooling, i.e. the process is reversed and the system is
Status: 7
This condition serves as compressor protection. If the compressor is switched off and switched on again
afterwards, the compressor only starts after minimal downtime, which may be, for example, 10
minutes. The “wait” condition is then displayed. The compressor may also only be started 6 times per
mains in “wait” operating condition.
Status: 8
This condition is reached when the flow temperature of the heat pump is greater than the set maxim
temperature (usually 55°C). To lower the flow temperature the condenser pump is switched on.
The pump

5 Operating conditions
16
The heat pump changes to this state as soon as the back flow temperature of the heat pump drops below
the value of the set Min.Temp.Cooling / Defrost WT. In
and the condenser pump runs.
The compressor is switched off here and residual heat is supplied to heat consumers.
The input “external stop” has
responded and the heat pump is switched off. The heat pump only starts up
again if the input “external stop” is no longer responding.This input can respond, for example, through
phase limit switching by the energy supply company.
If this operating state is displayed, the connected second heat generator is running and the heat pump is
not switched on.
In this mode the heat pump is out of service and only the electrical heat conduces as heat
another heat generator is connected, it will be used instead of the heating element.
In the “OFF” mode the heat pump does not work and is ready to start.The heat pump must be started
(change of mode) to leave the operating state "heating off".
Min. temp.
The heat pump changes to this state as soon as the back flow temperature of the heat pump drops below
the value of the set Min.Temp.Cooling / Defrost WT. In
this operating state, the heat pump switches off
Residual heat
The compressor is switched off here and residual heat is supplied to heat consumers.
External stop
responded and the heat pump is switched off. The heat pump only starts up
again if the input “external stop” is no longer responding.This input can respond, for example, through
phase limit switching by the energy supply company.
Bivalent Alt.
If this operating state is displayed, the connected second heat generator is running and the heat pump is
Emergency mode
In this mode the heat pump is out of service and only the electrical heat conduces as heat
another heat generator is connected, it will be used instead of the heating element.
Heating off
In the “OFF” mode the heat pump does not work and is ready to start.The heat pump must be started
(change of mode) to leave the operating state "heating off".
Status: 9
The heat pump changes to this state as soon as the back flow temperature of the heat pump drops below
this operating state, the heat pump switches off
Status: 10
The compressor is switched off here and residual heat is supplied to heat consumers.
Status: 11
responded and the heat pump is switched off. The heat pump only starts up
again if the input “external stop” is no longer responding.This input can respond, for example, through
Status: 12
If this operating state is displayed, the connected second heat generator is running and the heat pump is
Status: 13
In this mode the heat pump is out of service and only the electrical heat conduces as heat
source.If
Status: 14
In the “OFF” mode the heat pump does not work and is ready to start.The heat pump must be started

6
TEMPERATURE MANAGER
The heat demand of the individual modules (hot water tank, buffer tank, heating circuit, solar, etc.) is
controlled by the temperature manager. The below
functionality of the temperature manager.
required demand temperature to the temperature
of an internal calcu
lated temperature demand + set up increase. The heat supplier (= heat generator
respectively heat pump/buffer), which receives the different module demand temperatures from the
temperature manager, must supply the required temperature demand to the differe
temperature manager calculates the maximum demand temperature of all modules.
the existing temperature.
Example:
Heat supplier =Heat pump
Module 1 & 2
= heating circuit 1 & 2
Module 3 = hot water tank
Module 4 = buffer
calculatedrequired
temperature [°C]
temperature increase [°C]
required temperature of the
modules [°C]
Maximum temperature requirement
HEAT PUMP
(Heat supplier)
BUFFER
(Module 4)
Temp. requirement
+ increase
TEMPERATURMANAGER
Bild6.1
: Temperature manager
Temperature manager
TEMPERATURE MANAGER
The heat demand of the individual modules (hot water tank, buffer tank, heating circuit, solar, etc.) is
controlled by the temperature manager. The below
-
mentioned scheme (see
functionality of the temperature manager.
A module contains of an in-
and output.
required demand temperature to the temperature
manager. The sent required
demand temperature is a sum
lated temperature demand + set up increase. The heat supplier (= heat generator
respectively heat pump/buffer), which receives the different module demand temperatures from the
temperature manager, must supply the required temperature demand to the differe
temperature manager calculates the maximum demand temperature of all modules.
= heating circuit 1 & 2
Heating circuit
1
Heating circuit
2
Hot water tank
temperature [°C]
40 30
52
temperature increase [°C]
5 3 0
required temperature of the
modules [°C]
45 33
52
Maximum temperature requirement
52
BUFFER
(Module 4)
HEATING
CIRCUIT 1
(Module 1)
HEATING
CIRCUIT 1
(Module 2)
Temp. requirement
+ increase
Temp. requirement
+ increase
Temp. requirement
+ increase
: Temperature manager
Temperature manager
6
17
The heat demand of the individual modules (hot water tank, buffer tank, heating circuit, solar, etc.) is
mentioned scheme (see
Bild6.1) explains the
and output.
Every module sends a
demand temperature is a sum
lated temperature demand + set up increase. The heat supplier (= heat generator
respectively heat pump/buffer), which receives the different module demand temperatures from the
temperature manager, must supply the required temperature demand to the differe
nt modules. The
temperature manager calculates the maximum demand temperature of all modules.
These modules receive
Hot water tank
Buffer
52
48
2
52
50
HOT WATER
TANK
(Module 3)
Temp. requirement
+ increase

7 T-CONTROL
18
7 T-CONTROL
The handling and menu navigation are described in this chapter.
explained in chapter 7.10 (page 27
).
7.1 Starting the system
To switch on the display, the following condition must be fulfilled:

The heat pump must be connected to the power supply
If it is fulfilled, the starting process of the display, which takes 1
figure 7.1
: Starting process of the display
7.2
Operation and handling
The touch panel is a touch-
sensitive screen and control unit. By touching the screen you can change
released values or move to other pages.The sc
pencil, etc.
figure 7. 2
: Operation of the screen with fingers or pen
The handling and menu navigation are described in this chapter.
Every single T-
CONTROL parameter is
).
To switch on the display, the following condition must be fulfilled:
The heat pump must be connected to the power supply
If it is fulfilled, the starting process of the display, which takes 1
-
2 minutes, starts (see
: Starting process of the display
Operation and handling
sensitive screen and control unit. By touching the screen you can change
released values or move to other pages.The sc
reen navigation and input can be done with finger, pen,
: Operation of the screen with fingers or pen
CONTROL parameter is
2 minutes, starts (see
figure 7.1).
sensitive screen and control unit. By touching the screen you can change
reen navigation and input can be done with finger, pen,

7.3 Main menu
After start up figure 7.3
will appear. In the centre of the screen important values according the heat pump,
buffer, hot water tank, heating circuit and so on are shown.
(see chapter7.7 ).
figure 7.3: Main menu
By pressing the button:
the main menu will be displayed
(see figure
7
fault messages (warnings & alarms) will be displayed.
(see figure
7
the individual modules (heat pump, hot water tank, buffer, heating circuit, solar, etc.)
will be displayed.
(see from
chapter
the menu settings (network configuration, E
(see
chapter
the date & time can be set up
(see
chapter
the code input screen will be shown
(see
chapter
In general the field is used to display the operating conditions, which is shown in
chapter 5 .
more important values will be shown on the second page
T
will appear. In the centre of the screen important values according the heat pump,
buffer, hot water tank, heating circuit and so on are shown.
The shown values can be adapted individually
the main menu will be displayed
7
.3)
fault messages (warnings & alarms) will be displayed.
7
.14or chapter 7.8)
the individual modules (heat pump, hot water tank, buffer, heating circuit, solar, etc.)
will be displayed.
chapter
7.9)
the menu settings (network configuration, E
-
Mail, screen saver) will be displayed
chapter
7.11, changing with code only!)
the date & time can be set up
chapter
7.6, changing with code only!)
the code input screen will be shown
chapter
7.5)
In general the field is used to display the operating conditions, which is shown in
more important values will be shown on the second page
T
-CONTROL
7
19
will appear. In the centre of the screen important values according the heat pump,
The shown values can be adapted individually
the individual modules (heat pump, hot water tank, buffer, heating circuit, solar, etc.)
Mail, screen saver) will be displayed
In general the field is used to display the operating conditions, which is shown in

7 T-CONTROL
20
7.4 Symbols explanation
In this section important symbols are explained, which are displayed on the following menu pictures.
With the
aggregate
The symbol is only

the code has been entered (se

the heat pump is in the “off
If the Aggregate-
Test is active, the symbol will turn green and the message “AGG
ACTIVE” is shown on the display.
Information
such as firmware
module (heat pump, hot water tank, buffer, solar, heating circuit).
These symbols (
navigation
tank, buffer, solar, heating circuit, hydr. compensator, net pump, zone valve, ext.
demand).An alternative to the illustrated navigation method is the wiping to the right or left.
Back to the modules overview (heat pump, hot water tank, buffer, solar, heating circuit, etc.).
In this section important symbols are explained, which are displayed on the following menu pictures.
aggregate
-
test
connected components can be tested individually.
visible, if
the code has been entered (se
e chapter 7.5, page 21) and
the heat pump is in the “off
” operation mode (only at the heat pump aggregate
Test is active, the symbol will turn green and the message “AGG
ACTIVE” is shown on the display.
such as firmware
-module, hardware-
module, software version etc.,
module (heat pump, hot water tank, buffer, solar, heating circuit).
navigation
) can be used to navigate in each module (heat pump, hot water
tank, buffer, solar, heating circuit, hydr. compensator, net pump, zone valve, ext.
demand).An alternative to the illustrated navigation method is the wiping to the right or left.
Back to the modules overview (heat pump, hot water tank, buffer, solar, heating circuit, etc.).
In this section important symbols are explained, which are displayed on the following menu pictures.
connected components can be tested individually.
” operation mode (only at the heat pump aggregate
-test!)
Test is active, the symbol will turn green and the message “AGG
-Test
module, software version etc.,
of each
) can be used to navigate in each module (heat pump, hot water
tank, buffer, solar, heating circuit, hydr. compensator, net pump, zone valve, ext.
demand).An alternative to the illustrated navigation method is the wiping to the right or left.
Back to the modules overview (heat pump, hot water tank, buffer, solar, heating circuit, etc.).