Danfoss ThermoClean – DL, ThermoClean – Combi Operating guide
Installation, commissioning and operation manual
Storage Charging Module
with integrated legionella prevention
ThermoClean®– DL and ThermoClean®– Combi
Always keep the instructions for use readily available near the device.
Read the instructions for use before starting any work!
Caution!
Caution! Before putting the device into service, check that
it is undamaged and in perfect operating condition.
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Original operating instructions
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1.0 General Information ...................................................................................................................................................................... 3
1.1 Information on operating instructions .............................................................................................................................................................................. 3
1.2 Other applicable documents ................................................................................................................................................................................................ 3
1.3 Explanation of symbols ........................................................................................................................................................................................................... 3
1.4 Liability and warranty .............................................................................................................................................................................................................. 4
1.5 Copyright ...................................................................................................................................................................................................................................... 4
1.6 Spare parts ................................................................................................................................................................................................................................... 4
1.7 Dismantling ................................................................................................................................................................................................................................. 4
1.8 Disposal ......................................................................................................................................................................................................................................... 5
2.0 Safety .. ............................................................................................................................................................................................................................................. 6
2.1 General Information ................................................................................................................................................................................................................. 6
2.2 Responsibility of the operator .............................................................................................................................................................................................. 6
2.3 Intended use ............................................................................................................................................................................................................................... 6
2.4 Possible misuse .......................................................................................................................................................................................................................... 7
2.5 Occupational health and safety ........................................................................................................................................................................................... 7
2.6 Personal protective equipment ............................................................................................................................................................................................ 7
2.7 Possible hazards of the device .............................................................................................................................................................................................. 8
2.8 Emergency stop switch ........................................................................................................................................................................................................... 8
2.9 Operating personnel ................................................................................................................................................................................................................ 9
2.10 Actions in the event of danger or accidents .................................................................................................................................................................... 9
2.11 Residual hazards / hazard analysis ...................................................................................................................................................................................... 10
3.0 Technical Data ............................................................................................................................................................................................................................. 11
3.1 Technical and main system data .......................................................................................................................................................................................... 11
3.1.1 CE label .................................................................................................................................................................................................................................. 11
3.1.2 Legend and designations ............................................................................................................................................................................................... 11
4.0 Function .......................................................................................................................................................................................... 12
5.0 Setup and Installation ................................................................................................................................................................... 14
5.1 Setup and assembly / General information ..................................................................................................................................................................... 14
6.0 Transport, Packing and Storage ................................................................................................................................................... 16
6.1 Transporting pallets with a forklift ...................................................................................................................................................................................... 16
6.2 Transport inspection ................................................................................................................................................................................................................ 17
6.3 Packing .......................................................................................................................................................................................................................................... 17
6.4 Storage .......................................................................................................................................................................................................................................... 17
7.0 Installation .................................................................................................................................................................................................................................... 18
7.1 Installation preparation ........................................................................................................................................................................................................... 18
7.2 Primary connection, heating medium (e.g. district heating) ..................................................................................................................................... 19
7.3 Secondary connection, domestic water ............................................................................................................................................................................ 19
7.4 Electrical connection ................................................................................................................................................................................................................ 19
7.4.1 Electrical connection of electronic controller ......................................................................................................................................................... 19
7.5 Installation of the system ........................................................................................................................................................................................................ 21
8.0 Commissioning ........................................................................................................................................................................................................................... 22
8.1 Requirements for commissioning ....................................................................................................................................................................................... 22
8.2 Requirements for commissioning, domestic water system ....................................................................................................................................... 22
8.3 Primary-side commissioning ................................................................................................................................................................................................. 22
8.4 Controller ....................................................................................................................................................................................................................................... 23
8.5 Malfunction or taking out of service .................................................................................................................................................................................. 23
8.6 Recommissioning after a fault .............................................................................................................................................................................................. 23
8.7 Danfoss controller default settings ..................................................................................................................................................................................... 23
8.7.1 Basic settings ....................................................................................................................................................................................................................... 23
8.7.2 Pump settings ..................................................................................................................................................................................................................... 24
9.0 Operation ...................................................................................................................................................................................................................................... 25
9.1 Switching on ............................................................................................................................................................................................................................... 25
9.2 Switching off ............................................................................................................................................................................................................................... 25
9.3 Recommissioning ...................................................................................................................................................................................................................... 25
9.4 Hygiene and thermal disinfection ....................................................................................................................................................................................... 25
10.0 Servicing ........................................................................................................................................................................................................................................ 26
10.1 Safety instructions / Maintenance schedule (recommendations) ........................................................................................................................... 26
10.2 Maintenance tasks ..................................................................................................................................................................................................................... 27
10.3 Actions after maintenance tasks .......................................................................................................................................................................................... 27
11.0 Disturbances ................................................................................................................................................................................................................................ 28
11.1 Malfunctions ................................................................................................................................................................................................................................ 28
11.2 What to do when faults occur ............................................................................................................................................................................................... 29
12.0 Spare parts ..................................................................................................................................................................................... 29
Index ........................................................................................................................................................................................................... 30
Annex ............................................................................................................................................................................................................................................. 31
Layout / Part locations ....................................................................................................................................................................................................................... 31
HUBA Control flow sensor DS 210 ................................................................................................................................................................................................. 32
Wiring diagram ..................................................................................................................................................................................................................................... 34
Declaration of Conformity (original English and German versions) .................................................................................................................................. 40
Manufacturer’s Declaration (original English and German versions) ............................................................................................................................... 44
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1. General Information
1.1 Information on operating instructions
These operating instructions describe the installation, operation
and maintenance of the system. Compliance with all specified
safety instructions and operating instructions is a prerequisite
for working safely with the system and handling it properly. In
addition, the local accident prevention regulations and general
safety regulations applicable to the system’s area of use must be
observed. The operating instructions are part of the product and
must be kept accessible to installation, operating, maintenance
and cleaning personnel at all times in the immediate vicinity of the
system’s operating area.
1.2 Other applicable documents
Unless otherwise stated, the individual components of the system
are modules purchased from other manufacturers. All components
used in the system have been subjected to risk assessments by their
manufacturers. The conformity of the designs with the applicable
European and national regulations has been declared by the
manufacturers of the components. The manufacturers’ declarations
of conformity, as well as the operating, maintenance and repair
For better presentation of the described situations, the illustrations
in this manual are not necessarily to scale and may differ slightly
from the actual design of the system. In addition to these operating
instructions, the operating instructions for the installed components
apply. The information contained therein – in particular safety
instructions – must be observed at all times.
instructions for the individual system components, are inseparable
parts of the system documentation. The instructions for safety,
assembly and installation, operation, maintenance, disassembly
and disposal of the components contained in the manufacturer’s
documents must be followed by the system’s operating personnel
unconditionally.
1.3 Explanation of symbols
Important safety and device-related instructions in this operating
manual are marked by warning symbols. The instructions must be
followed in order to avoid accidents, personal injury and material
damage.
WARNING!
This symbol identifies hazards that may result in adverse health
effects, injuries, permanent bodily injury or death.
Be sure to comply with the instructions on work safety and take
extra care in these cases.
WARNING!
Electrical hazard. This symbol alerts you to dangerous situations
due to electricity. Failure to observe the safety instructions may
result in serious injury or death. The work to be carried out may
only be carried out by a qualified electrician.
CAUTION!
This symbol indicates instructions, the non-observance of which
may result in damage, malfunctions and/or system failure.
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NOTE!
This symbol highlights tips and information that must be observed
for effective and trouble-free operation of the system.
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1.4 Liability and warranty
All information and instructions in this operating manual have been
compiled taking into account the applicable regulations, accepted
standards of good engineering practice, and our many years of
expertise and experience.
In the case of special versions, use of additional order options or
due to the latest technical changes, the actual scope of delivery may
differ from the explanations and drawings in this document. If you
have any questions, please contact the manufacturer.
We reserve the right to make technical changes to the product as
part of improving the performance characteristics and product
development. Parts such as tools subject to wear in the use of the
device and/or normal wear and tear, as well as auxiliary supplies
and consumables such as greases, oils or cleaning agents, are not
covered by the warranty.
1.5 Copyright
The operating instructions are to be treated as confidential. They
are intended solely for persons working on and with the system.
Transfer of the operating instructions to third parties without the
written consent of the manufacturer is not permitted. If necessary,
contact the manufacturer.
Reproduction in any form – even in extracts – as well as utilization
and/or communication of the content are not permitted without the
written approval of the manufacturer. Violations will incur damages.
The right to further claims remains reserved.
Additionally, the obligations agreed in the delivery contract,
the general terms and conditions of business, and the delivery
conditions of the manufacturer and applicable statutory regulations
at the time of the conclusion of the contract apply.
These operating instructions must be read carefully before starting
work on and with the device, particularly before commissioning.
The manufacturer accepts no liability for damage or malfunctions
resulting from non-compliance with the operating instructions.
The content, text, illustrations, images and other representations
are protected by copyright and are subject to additional industrial
property rights. Any improper use is punishable.
1.6 Spare parts
Only use original spare parts from the manufacturer.
If non-approved spare parts are used, all warranty, service, damage
and liability claims against the manufacturer or its agents, dealers
and representatives are forfeited.
1.7 Dismantling
For disposal or scrapping, clean and dismantle the device in
accordance with applicable health and safety and environmental
regulations. See also: -> Hygiene.
Before starting the dismantling:
– Switch off the device and secure it against being switched on
again.
– Physically disconnect the all energy and/or power sources from
the device and discharge stored residual energy in accordance
with regulations.
– Remove operating and auxiliary materials and other processing
materials in an environmentally friendly manner.
CAUTION!
Incorrect or faulty replacement parts can lead to damage,
malfunctions or total failure of the system.
WARNING!
Risk of injury! Stored residual energy, sharp edges, points and corners
on and in the device or on the required tools can cause injuries. All
work during dismantling of the device may therefore only be carried
out by qualified personnel.
WARNING!
Not drinking water! Domestic water in parts of the system that are
not used for a long time may no longer be suitable for drinking.
Prevent such use; drain the system parts and dispose of the water.
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1.8 Disposal
If no return or disposal agreement has been made, dispose of
disassembled parts after proper dismantling as follows:
• Scrap metallic materials.
• Recycle plastic materials.
• Dispose of other components, sorted according to the type of
material.
• Dispose of residual media properly. When introducing additives
(e.g. glycol, etc.), the applicable regulations must be observed.
Remove used materials such as greases, oils, preservatives and cleaning
agents from the device according to type and in an environmentally
responsible manner. Use suitable collection and storage containers
approved for the respective operating fluids. Label containers with
contents, fill level and date and store them protected against misuse
until final disposal.
CAUTION!
Electronic waste, electronic components, lubricants and other
auxiliary materials are subject to special waste treatment and may
only be disposed of by authorized specialist companies!
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2. Safety
This section provides an overview of all important safety aspects for
optimum protection of the personnel and for the safe and troublefree operation of the device. In addition, the individual subsections
contain specific safety instructions, marked with symbols, to avert
immediate dangers.
2.1 General
The device is built in accordance with applicable and accepted rules
of good practice at the time of its development and production and
is considered safe to operate. However, the device may pose a hazard
if it is used by improperly trained personnel or is used improperly
or not as intended. Every person who is tasked with working on
or with the device must therefore have read and understood the
operating instructions before starting work. It is recommended that
the operator demonstrably confirms the personnel’s knowledge of
the operating instructions.
Modifications of any kind, as well as attachments or conversions on
the device, are prohibited.
All safety, warning and operating instructions on the device must
always be kept in a legible state. Damaged signs or stickers must be
replaced immediately.
Specified setting values or ranges must be strictly adhered to.
NOTE!
Conversion and extension measures must always be agreed with
the manufacturer.
2.2 Responsibility of the operator
• Always keep the operating instructions in the immediate vicinity
of the device and accessible to the installation, operating,
maintenance and cleaning personnel at all times.
• Only operate the device in a technically perfect and safe condition.
• Always keep the safety devices freely accessible and check them
regularly.
The information on occupational health and safety refers to the
regulations of the European Union applicable at the time of the
device’s manufacture. The operator is obliged to determine the
conformity of the stated occupational health and safety measures
with the current state of the regulations during the entire period
of use of the device and to observe new regulations. Outside of
the European Union, the applicable health and safety legislation
and local provisions and regulations must be adhered to at the
location of the device’s use. In addition to the safety instructions
in this operating manual, the safety, accident prevention and
environmental protection regulations generally applicable to the
device’s area of use must be observed and complied with.
2.3 Intended use
The operational safety of the device is only assured if it is used
as intended in accordance with the instructions in the operating
manual. The system serves to provide heat energy from the supply
grid of an energy company or other heat generation facility (e.g.
boiler) by transferring heat to a customer’s in-house system.
Proper use also includes correct compliance with the installation,
operating, maintenance and cleaning instructions.
The operator and the personnel authorized by the operator are
responsible for the trouble-free operation of the device as well as
for clear definition of the responsibilities for installation, operation,
maintenance and cleaning of the device. The information in the
operating instructions must be followed fully and unconditionally.
The operator must also ensure that:
– In a risk assessment, additional hazards which result from the
specific working conditions at the location of the device’s use are
determined.
– All operating and safety instructions resulting from the risk
assessment of the workstations at the device are specified in an
operating manual.
In the Federal Republic of Germany e.g., the Industrial Safety
Ordinance (BetrSichV, BGBL I 2016) applies.
Any other and/or different use of the device is prohibited and is
considered improper. Claims of any kind against the manufacturer
and/or its authorized representatives due to damage resulting from
improper use of the device are excluded. The operator and/or the
owner is solely liable for all damage resulting from improper use.
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2.4 Possible misuse
The device is used within a system and in some cases may not have
its own control or shut-off device. The operator must ensure, by
installing suitable safety devices, that the device can be stopped
when a dangerous situation or malfunction occurs.
Any use other than the intended use of the system can lead to
dangerous situations. For this reason:
– In principle, only use DHW systems in accordance with the
instructions in this document, especially in compliance with the
limits of use specified in the technical data.
– Refrain from any other or incorrect use of the DHW systems.
– Refrain from refurbishing, refitting or altering the construction
or individual pieces of equipment with the aim of changing the
application area or the usability of the DHW systems.
2.5 Occupational health and safety
By following the instructions on occupational health and safety, a
hazard to persons and/or the system can be prevented.
Failure to comply with these instructions can endanger persons and
objects as a result of mechanical effects or failure of the system and
the entire workplace.
Non-observance of the safety regulations will result in the loss of any
claims for damages.
Note!
Emergency Stop button, etc.
WARNING!
Danger due to improper use.
2.6 Personal protective equipment
When working on and with the device, you must always wear:
Protective clothing
Consisting of closely fitting workwear with low tear resistance, with
closely fitting sleeves and no protruding parts. It is mainly used to
protect against being caught by moving machine parts. Do not
wear rings, necklaces or other jewelry.
Protective gloves
To protect hands from friction, abrasions, punctures or deeper
injuries, as well as from contact with hot surfaces.
Safety goggles
To protect the eyes from flying objects and liquid splashes.
Safety shoes
To protect against heavy falling parts and slipping on slippery
surfaces.
Protective helmet
For protection against falling and flying parts and materials.
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2.7 Possible hazards of the device
The device has been subjected to a risk analysis. The design and
construction of the device based on this corresponds to currently
accepted standards of good practice However, residual risks remain.
The device generates a strong jet of liquid when opened, for example
by drain or vent valves. The device operates e.g. with a maximum
pressure of 10 bar on the domestic water side. All maximum operating
parameters can be found on the label.
WARNING! Risk of injury.
Danger from spraying liquids under high pressure. Always wear
personal protective equipment when working on the device.
The device works with voltages up to 230 V and currents up to 16 A.
WARNING! Electrical hazard.
The electrical energy can cause serious injuries. In the event of
damage to the insulation or individual components, there is a
danger to life.
– Before carrying out any maintenance, cleaning or repair work, switch
off the main switch and secure it against being switched on again.
– Disconnect the device from the power supply for all work on the
electrical system.
– Do not remove any safety devices or disable them by modifications.
WARNING! Risk of injury.
Sharp-edged housing parts and sharp corners can cause skin
abrasions. Wear protective gloves when working on the device.
WARNING! Risk of burning.
Hot surfaces can cause severe burn injuries. When working on the
device, always wear protective gloves. The device operates at a
maximum temperature as indicated on the label.
Components in the device may contain automatic moving parts
(motors, gears, etc.). The devices may be heavy.
WARNING! Risk of crushing.
Heavy objects can cause crushing during transport, even with
lifting equipment. The device may contain electrically powered
moving components (motors, gearboxes) that can cause crushing
when touched during operation. When working on the device,
always switch off the power and wear protective clothing.
2.8 Emergency stop switch
An emergency stop switch is not integrated in the device. The
operator must ensure that emergency stop switches are installed
in accordance with the applicable accident prevention regulations,
if required by law.
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2.9 Operating personnel
The device may only be operated and maintained by authorized,
trained and instructed personnel. This personnel must have received
specific instruction on the hazards that may occur.
An instructed person is someone who has been instructed and, if
necessary, trained on the tasks entrusted to them and the possible
hazards arising from improper conduct, and has been instructed on
the necessary protective devices and protective measures.
Qualified personnel are those who, on the basis of their professional
training, knowledge and experience, as well as knowledge of the
relevant provisions, are able to assess the work assigned to them and
recognize possible hazards.
If the personnel do not have the necessary knowledge, they must be
trained. The responsibilities for operation and maintenance must be
clearly defined and adhered to, so that there is no unclear allocation
of responsibilities with regard to safety.
2.10 Actions in the event of danger or accidents
In case of danger or accidents, the device should be switched off
by immediately pressing an emergency stop switch. This can also
be done by opening a safety door or protective screen provided
with safety switches, which triggers the emergency stop function
when opened.
Safety devices with emergency stop function are only to be operated
in emergency situations.
Safety devices must not be used for normal shutdown of the device.
The device should only be operated and maintained by persons who
can be expected to perform their work reliably. Any operation which
affects the safety of persons, the environment or the device is to be
avoided. Persons who are under the influence of drugs, alcohol or
medication that affects their ability to respond should not perform
any work on or with the device.
When selecting personnel, minimum age requirements in the country’s
youth employment legislation must be observed and, where relevant,
applicable professional regulations. The operator must ensure that
no unauthorized persons work on or with the device. Unauthorized
persons, such as visitors, etc., must not come into contact with the
device. They must maintain a reasonable safety distance.
The person using the device must immediately notify the operator
of any changes to the device that affect safety.
Always be prepared for accidents or fires. Keep first aid equipment
(first aid kit, eyewash bottle, etc.) and fire extinguishers within easy
reach.
Personnel must be familiar with the handling and location of safety,
accident reporting, first aid and rescue equipment. This ensures
protection against hazards and the best possible assistance in the
event of accidents.
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2.11 Residual hazards / hazard analysis
Hazard location Type of hazard Protection goal Measure
Shut-off valves and fittings in
the substation
Piping and components in the
substation
Entire substation Electric shock Safe contact at the substation Adequate contact protection
Entire substation
Entire substation
In operation, the residual risk can be limited to the following code
value according to the Suva risk assessment method: B5/C4/D3/E2.
The residual hazard potential arises from non-observance of the
above operating instructions.
The modules have been manufactured according to explicit
specifications of the operator, who is responsible for maintaining
the specified parameters and for selection and qualification of the
operating personnel.
The plant is equipped with the following warning sign on which
the most important residual hazards are indicated:
Crushing in manual operation
Burns from contact
Spraying liquids and/or steam
under high pressure
Overheating of the substation
or rather transfer of heat
to the connected in-house
system beyond the permissible
temperature
Manual operation of the shutoff valves and fittings must be
possible without danger.
Safe contact when the
substation is open
Controlled pressure reduction
in the event of failure
Shutting off the heat supply
in the event of a fault
Provide sufficient space for
ergonomic operation by design.
Thermal insulation of pipes and
components Information signs
at the substation Warnings in
the operating instructions
Safety devices according to
DIN 4747 Part 1 (hot water) or
EN 12828, DIN 1988
Safety devices according to
DIN 4747 Part 1 (hot water) or
EN 12828
This system may only be operated by trained personnel after careful study of the
accompanying documentation. Before commissioning, the system must be filled and
fully vented. Exceeding the permissible operating pressure or the maximum permissible
operating temperature stated on the CE label, as well as any use other than the intended
use, is not allowed.
Risk of burns due to contact with or discharge of hot media (water/steam). Avoid
touching the modules. or wear suitable protective clothing.
Risk of crushing when operating the modules.
Danger of electric shock: Before working on the electrical system, it must be
disconnected from the power supply.
All flange joints, screw fittings and electrical clamp and screw connections must be checked
and, if necessary, tightened before filling or commissioning the system. Switch on pumps
only when filled (avoid dry running).
Properly install before commissioning (unless fully assembled at the factory):
– Safety valve / drain and vapor lines according to DIN 4751 or DIN 1988
– Strainer in primary supply line / secondary return line
– Equipotential bonding according to VDE 0100 Part 540 (earthing, protective conductor,
equipotential bonding)
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Danfoss A/S, Nordborgvej 81, 6430 Nordborg, Denmark
1001999999/2018/20
004X1618/TC-DL 0200 ECL XB
DOMESTIC HOT WATER
2014/68/EU Article 4.3
3.0 Technical Data
3.1 Technical and main system data
The main system data can be found on the label as well as the
documents contained in the systems (title page, wiring diagram,
data sheet).
3.1.1 CE label
The label is attached to the system. It contains the following
information:
– Manufacturer
– Device no.
– Year of manufacture
– Type
– Capacity
– Design parameters
– Max. perm. operating temperature
– Nominal pressure class
MANUFACTURER
ID NUMBER AND PRODUCTION DATE
CODE AND TYPE
PURPOSE OF USE
PED CATEGORY
POWER SUPPLY VOLTAGE
PN CLASS 16 10 10
MIN./MAX. OPERATING TEMP. °C 2/100 2/90 2/90
MAXIMUM PRESSURE BAR 16 10 10
CAPACI TY KW 84 84
TEMPERATURE PROGRAM °C 75-50/10(20)-70 10-20/70-60
HEAT EXCHANGER XB37H-1 60 XB37L-1 60
FLOWRATE m3/h / max. 5,0
PRESSURE DROP/EXCHANGER BAR /
SUBSTATION
230V AC / 50-60Hz
PRIMARY SECONDARY SECONDARY SECONDARY SECONDARY
DHW Charge DHW Re-cool
3.1.2 Legend and designations
Shut-off ball valve
or butterfly valve
Check valve
Non-return valve
Safety valve (SFV)
Balancing valve
(Taco-Setter)
Air-Vent
Drain
MADE IN POLAND
Temperature sensor:
S2, S3, S9... = component designation
in electrical diagram
Heat exchanger (HEL / HEC)
Electronic controller (ECD)
3-way-valve
M2 = component designation in
electrical diagram
Thermometer
Domestic storage tank (DTA)
1 Domestic water (cold)
2 Domestic hot water (hot/network)
3 Circulation (inlet)
4 Heating Supply
5 Heating Return
45 to storage tank top
46 from storage tank bottom
47 from storage tank top
2-way-valve
M1 = component
designation in electrical
diagram
Circulation pump
(CPU = circulation pump,
LPU = loading pump)
P2/V2, P3/V3 = component
designation in electrical
diagram
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Reaction vessel (tank / RTA)
Combi vessel (tank / CTA)
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4.0 Function
To meet increased drinking water quality requirements, domestic
hot water charging systems can be provided with additional components and functions, e.g. to effectively prevent or kill legionella
through thermal disinfection. These systems are used in particular
where an increased risk of infection exists or must be prevented. This
includes hospitals, nursing homes, hotels, swimming pools or other
sports facilities. The ThermoClean® system is ideal for this purpose:
Compared to a conventional domestic hot water charging system,
an additional reaction tank (RTA) is integrated in the charging circuit.
The water to be heated in the instantaneous water heater (HEL) is
not only heated here to the nominal system temperature, but to
minimum 70°C. To ensure normal operation, a minimum heating
flow temperature of 75°C must be maintained (4). This temperature
is controlled via a control device (e.g. electric control valve (CVE)).
The heated water flows through the reaction tank (RTA) within a
time of not less than 4 minutes. This period of time is maintained
by the arrangement of diverse components within the tank, such
as perforated plates, etc. This makes it possible to effectively kill
legionella. During peak periods, additional drinking water buffer
storage tanks must be connected to the system (connections 45, 46
and 47). The volume must be adapted to the demand. To prevent a
risk of scalding, the system contains an additional recooler (HCE).
Here, the water with a temperature of 70°C is cooled by inflowing
cold water (connection 1) to the required system temperature at
the connection (2). This must be adjusted according to local or
country-specific laws and regulations; from a hygiene aspect, the
temperature should not fall below 55°C. Control takes place via the
electronic hot water thermostat (ECD) in conjunction with an electric
control valve (CVD), which constantly controls the system tempera-
12 | © Danfoss | 2019.01
ture at the respective sensor. During off-peak periods, cooling takes
place via the cooled returning circulation water (connection 3). The
circulation temperature or volume can be used to control an on-site
circulation pump (CPU) by means of a speed controller integrated
in the control device. The returning circulation water volume must
not exceed 70% of the system charging volume.
The circulation volume reduces the corresponding charging volume
[values see page 48]:
max. charging volume flow = circulation volume + effective
domestic hot water charging volume flow
The temperature drop in the pipe system must not exceed 5K (see
also DVGW worksheet W 551). During off-peak periods, the entire
pipe system can be disinfected via a setting or an external request
at the controller (ECD). For further information, see Chapter 8.
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For smaller systems, the buffer storage tank and reaction tank can also
be combined in one device (CTA). This saves space and reduces system
costs. These systems are called ThermoClean®-Combi. The following
diagram shows the principle layout:
ThermoClean® systems are supplied fully piped. Connect the reaction
or combination storage tank to the corresponding connections on the
station unit. Assembly of the charging unit of the ThermoClean®- Combi
is described in a separately enclosed quick guide.
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5.0 Setup and Installation
5.1 Setup and installation / General information
Domestic water heating systems are usually supplied as fully piped
and wired units. System connections are given in the data sheet
and in this manual. Ensure that the wall or floor has sufficient load
bearing capacity for total weight of the system, including water
content. Pay close attention to the alignment with the prepared
connections, so that they can be joined without stress.
WARNING! Risk of injury.
Improper installation and assembly may result in serious personal
injury and/or property damage. Installation and assembly work
may therefore only be carried out by trained specialist personnel
in compliance with safety regulations.
NOTE!
Do not use pipe wrenches on union joints. Always use matching
wrenches.
Only use compliant connecting parts when connecting to the
in-house system. Pay special attention to permissible materials in
the domestic water sector and comply with all legal requirements.
Galvanized pipes and fittings should be avoided at all costs to prevent
corrosion. Check the match of the connection type, the pressure
level and the dimension. Use approved gaskets and gasket materials.
The following types of gaskets are used by us:
Heating side: KLINGERtop-sil-ML1
Domestic water side: EPDM A-KT 90-00
NOTE!
Check all connections before filling the system and, if necessary,
tighten them. After commissioning, repeat this action under hot
conditions.
If parts of the system or components have to be dismantled due to
limited space for bringing in (shafts, elevators, small entry openings,
etc.), be sure to reinstall or reconnect them after setup.
NOTE!
Do not forcibly separate system parts from network lines and/or
frame parts by sawing, cutting, etc.
14 | © Danfoss | 2019.01
VI.MP.K1.02
ThermoClean®
Use the following tightening torques for the above-mentioned gasket type (KLINGERtop-sil-ML1) on the heating side:
Size/torque 20 Nm 30 Nm 40 Nm 50 Nm 60 Nm 70 Nm 80 Nm 90 Nm
100 Nm
110 N m
120 N m
G 3/8" NOK RISK OK OK OK OK RISK DAM DAM DAM DAM
G 1/2" NOK RISK OK OK OK OK RISK DAM DAM DAM DAM
G 3/4" NOK NOK RISK OK OK OK RISK DAM DAM DAM DAM
G 1" NOK NOK RISK OK OK OK RISK DAM DAM DAM DAM
G 1 1/4" NOK NOK RISK OK OK OK RISK DAM DAM DAM DAM
G 1 1/2" NOK NOK RISK OK OK OK OK RISK DAM DAM DAM
G 1 3/4" NOK NOK NOK RISK OK OK OK OK RISK RISK DAM
G 2" NOK NOK NOK RISK OK OK OK OK RISK RISK DAM
Use the following tightening torques for the above-mentioned gasket type (EPDM A-KT 90-00) on the domestic water side:
Size/torque 5 Nm 10 Nm 15 Nm 20 Nm 25 Nm 30 Nm 35 N m 40 Nm 45 Nm 50 Nm 55 Nm
G 1/2" NOK OK OK RISK DAM DAM DAM DAM DAM DAM DAM
G 3/4" NOK OK OK RISK DAM DAM DAM DAM DAM DAM DAM
G 1" NOK NOK NOK RISK OK OK OK RISK DAM DAM DAM
G 1 1/4" NOK NOK NOK RISK OK OK OK RISK DAM DAM DAM
G 1 1/2" NOK NOK NOK RISK OK OK OK RISK DAM DAM DAM
G 1 3/4" NOK NOK NOK RISK OK OK OK RISK DAM DAM DAM
G 2" NOK NOK NOK RISK OK OK OK RISK DAM DAM DAM
G 2 3/8" NOK NOK NOK NOK RISK OK OK OK RISK DAM DAM
G 2 1/2" NOK NOK NOK NOK RISK OK OK OK RISK DAM DAM
Not sealed (Risk of leakage)
NOK
Risk, not sealed (Risk of leakage)
RISK
OK
OK
Deformation of the gasket
DAM
The above-mentioned gasket types should be used for replacement.
When using other types or materials, ask the manufacturer or supplier
for the optimum tightening torques to ensure proper sealing and
avoid damaging the gasket.
Pay particular attention to the suitability of the type of gasket
you have selected on the domestic water side. This concerns the
maximum possible temperature and the maximum pressure, as well
as compatibility with the corresponding media. On the domestic
water side, gaskets should always have suitable approval (e.g. KTW
or DVGW W270 test, Elastomer Guideline).
VI.MP.K1.02
© Danfoss | 2019.01 | 15
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