Taconova H3000 E User manual

HEAT INTERFACE UNIT CONTROLLER
H3000 E
01/2023 Item no. 215251 EA no. EA-1291
OPERATING INSTRUCTIONS
CONTACT AND ADDITIONAL INFORMATION
Taconova UK Limited | 2A Baxter Road | Sheffield, S6 1JF | T 0114 231 3700 | [email protected]
Taconova Group AG | Neubrunnenstrasse 40 | 8050 Zürich | T [phone] | F [phone] | [email protected]
WWW.TACONOVA.COM

212425, 2, en_GB
Original operating instructions
©Taconova UK Limited 2023
Taconova UK Limited
2A Baxter Road
Sheffield, S6 1JF
UK
Telephone: [phone]
Email: [email protected]
Internet: www.taconova.com
Taconova Group AG
Neubrunnenstrasse 40
8050 Zürich
Telephone: [phone]
Fax: [phone]
Email: [email protected]
01/2023 Item no. 215251 EA no. EA-1291Operating instructions2

Table of contents
1 Introduction.................................................................................... 5
1.1 Information on the operating instructions.......................... 5
1.2 Other applicable documents................................................ 5
1.3 Glossary and abbreviations.................................................. 5
2 Safety.............................................................................................. 7
2.1 Symbols in these instructions.............................................. 7
2.2 Proper use.............................................................................. 8
2.3 Residual risks........................................................................ 9
2.3.1 Electric current................................................................. 10
2.3.2 High temperatures........................................................... 10
2.3.3 Danger due to legionella outbreak................................. 11
2.4 Operator's responsibilities................................................. 11
2.5 Personnel requirements..................................................... 12
2.6 Environmental protection................................................... 14
3 Overview....................................................................................... 15
3.1 Functional principle............................................................ 15
3.2 Connection points............................................................... 15
3.3 Components of the controller............................................ 16
3.4 Human machine interface (HMI)......................................... 18
4 Functional description................................................................ 20
4.1 Operating modes................................................................. 20
4.2 Drinking hot water control.................................................. 21
4.3 Heating control.................................................................... 21
4.4 Special functions................................................................ 22
4.5 Password protection........................................................... 22
4.6 Data recording..................................................................... 22
5 Installation................................................................................... 23
6 Commissioning and operation.................................................... 25
6.1 Connecting the HMI............................................................. 25
6.2 Setting parameters............................................................. 25
6.2.1 Setting parameters on the HMI........................................ 25
6.2.2 Saving changes................................................................ 26
6.3 Setting the operating mode............................................... 26
7 Parameter settings and display values..................................... 27
8 Maintenance................................................................................. 30
8.1 Safety during maintenance................................................ 30
8.2 Overview of maintenance work.......................................... 30
9 Faults............................................................................................ 32
9.1 Safety instructions when repairing faults......................... 32
9.2 Fault display........................................................................ 32
9.3 Fault repair........................................................................... 32
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9.3.1 Viewing an error message............................................... 32
9.3.2 Fault table......................................................................... 33
9.4 Work required for repairing faults...................................... 36
9.4.1 Work required for repairing faults on the heat inter-
face unit............................................................................ 36
9.4.2 Replacing the circuit board............................................. 36
10 Decommissioning and restarting............................................... 37
10.1 Decommissioning.............................................................. 37
10.2 Restarting.......................................................................... 37
11 Disassembly, disposal................................................................. 38
11.1 Safety instructions for disassembly/disposal............... 38
11.2 Disassembling the controller........................................... 38
11.3 Disposing of the controller............................................... 38
12 Technical data............................................................................. 40
12.1 Design and operating data............................................... 40
12.2 Connection values............................................................ 40
12.3 Type plate.......................................................................... 40
13 Declaration of conformity........................................................... 41
14 Index............................................................................................. 44
Appendix....................................................................................... 46
A Appendix for service personnel............................................ 48
H3000 E Table of contents
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1 Introduction
1.1 Information on the operating instructions
These instructions ensure safe and efficient use of the heat interface
unit controller. These instructions are a component of the product
and must be kept in the immediate vicinity of the heat interface unit,
where they are readily accessible for service personnel.
The service personnel must have carefully read and understood these
instructions before starting any work. Compliance with all the safety
warnings and instructions provided in this manual is a basic prerequi-
site for working safely.
In addition, the local occupational health and safety regulations and
the general safety guidelines for the area of use of the controller
apply.
1.2 Other applicable documents
Document Remark
Sanitary and heating installation plans
Wiring diagram
Climatix HMI-TM operating instructions Available from the website
Operating instructions for the heat interface unit
1.3 Glossary and abbreviations
Abbreviation Meaning
FR Flow rate
dT Difference in temperature
HMI Human machine interface
HTG Heating
Man. Manual
Max. Maximum
Min. Minimum
PP Prepaid
T Temperature
Ctrl Controller/control
SPL Supply
KWF Keep warm function
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Abbreviation Meaning
DHW Domestic hot water
Circ. Circulation
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2 Safety
2.1 Symbols in these instructions
Safety warnings are indicated by symbols in these instructions. The
safety warnings are introduced by signal words that indicate the
extent of the danger.
DANGER!
This combination of symbol and signal word indi-
cates an immediate, dangerous situation that can
result in death or severe injury if it is not avoided.
WARNING!
This combination of symbol and signal word indi-
cates a potentially dangerous situation that can
result in death or severe injury if it is not avoided.
NOTICE!
This combination of symbol and signal word indi-
cates a potentially dangerous situation that can
result in property damage if it is not avoided.
ENVIRONMENT!
This combination of symbol and signal word indi-
cates potential dangers for the environment.
Safety warnings may refer to specific, individual instructions. Safety
warnings like this are embedded in the instructions to ensure they do
not distract the reader when performing the activity. The signal words
described above are used.
Example:
1. Release the screw.
2.
WARNING!
Risk of injury on sharp edges!
Close the cover carefully.
3. Tighten the screw.
To draw attention to special dangers, the following symbols are used
in safety warnings:
Categories and symbols for the safety
warnings
Safety warnings in instructions
Special safety warnings
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Warning signs Type of danger
Warning – high-voltage.
Warning – hot surface.
Warning – danger zone.
This symbol highlights useful tips and recommenda-
tions, as well as information for efficient and fault-
free operation.
Instructions, outcomes, lists, references and other elements are
highlighted in these instructions by the following symbols:
Symbol Explanation
Step-by-step instructions
ðOutcomes of instructions
References to sections of these instructions
and to other applicable documents
List without a specific order
[Button] Operating element (e.g. button, switch), dis-
play element (e.g. indicator lamps)
‘Display’ Screen elements (e.g. buttons, function key
allocation)
2.2 Proper use
The HL3000-E controller is a component of the heat interface unit and
is only intended for use for controlling heat interface units and for
verifying the current measurements.
Proper use also includes compliance with all information in these
instructions.
Any use extending beyond, or use other than, proper use is consid-
ered improper use.
Tips and recommendations
Other symbols
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WARNING!
Danger in the event of improper use!
Improper use of the controller may result in dan-
gerous situations.
– Never connect the controller directly to a source
of heat (e.g. boiler or solar circuit).
– Never use the controller in one of the following
areas:
– Outdoors
– Rooms susceptible to moisture
– Rooms in which the use of electrical units is
prohibited
– Only allow trained personnel to install the con-
troller.
2.3 Residual risks
The controller complies with all current safety requirements. How-
ever, there are residual risks that make caution necessary when
using the station. The residual risks and the practices and measures
they result in are listed in the following section.
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Safety
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2.3.1 Electric current
DANGER!
Danger to life due to electric power!
There is an immediate risk of fatal electric shock if
live components are touched. Damage to the insula-
tion of the individual components can be fatal.
– Have all work on the electrical equipment per-
formed by skilled electricians.
– In the event of damage to the insulation, cut off
the power supply immediately and initiate
repairs.
– Before working on live components of electrical
systems and equipment, de-energise these
components and secure them in this state for
the duration of the work. Adhere to the following
safety rules in this regard:
– Disconnect.
– Secure against restart.
– Verify that components have been de-ener-
gised.
– Ground and short-circuit.
– Cover or shield any adjacent live compo-
nents.
– Never bypass or disable any fuses. Comply with
the correct amperage specification when
replacing fuses.
– Keep moisture away from all live components.
This may lead to short circuits.
2.3.2 High temperatures
WARNING!
Danger of injury due to hot surfaces!
Surfaces on components may become very hot
during operation. Contact between the skin and hot
surfaces can cause severe burns to the skin.
– When working near hot surfaces, always wear
heatproof protective clothing and protective
gloves.
– Before opening the controller box, ensure that all
surfaces have cooled down to ambient tempera-
ture.
Electric power
Hot surfaces
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2.3.3 Danger due to legionella outbreak
WARNING!
Proliferation of legionellae due to stagnant water!
If the unit is not used for an extended period, there is
a risk of the proliferation of legionellae due to stag-
nant water.
– Upon restarting, set the operating mode to
“Thermal disinfection” (Legio) to flush the
drinking water lines with hot water (
Ä Chapter
6.3 ‘Setting the operating mode’ on page 26 ).
Legionellae are bacteria of which one species is
harmful to humans. Legionellae can easily proliferate
in pipes with warm, stagnant water. Flushing the
pipes with water at a temperature of at least 55 °C
kills the legionellae.
2.4 Operator's responsibilities
The operating company is the person who operates the heat interface
unit with the integrated controller for commercial or economic pur-
poses, or allows a third party to use/employ the system, and who
assumes the legal product liability for protecting the user, personnel
or third parties during operation.
The heat interface unit with the integrated controller may be used for
commercial purposes. The operating company of the heat interface
unit is therefore subject to the legal obligation to ensure occupa-
tional safety.
Along with the safety instructions in these instructions, the appli-
cable occupational health and safety regulations and environmental
protection regulations must be complied with in the area of use of the
controller.
The following applies in particular:
nThe operating company must be informed about the applicable
occupational safety regulations and must identify additional dan-
gers resulting from the specific working conditions at the site at
which the heat interface unit is used in a hazard assessment.
This must be implemented in the form of operating instructions
for operation of the controller.
nThe operating company must be check whether the operating
instructions created by the operating company correspond to the
current status of regulations, and modify them, if applicable, over
the full term of use of the controller.
Proliferation of legionellae
Operating company
Operating company responsibilities
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nThe operating company must clearly assign and define responsi-
bilities for installation, operation, troubleshooting, maintenance
and cleaning.
nThe operating company must ensure that all persons who work
with the controller have read and understood these instructions.
Furthermore, the operating company is responsible for ensuring the
controller remains in a technically flawless condition. The following
therefore applies:
nThe operating company must ensure that the maintenance inter-
vals described in these instructions are complied with.
nThe operating company must ensure that the electrical circuit is
equipped with fuses in compliance with local regulations. Fur-
thermore, an electrical fuse must be provided exclusively for the
heat interface unit. This fuse must be clearly labelled. An easily
visible description of the location of the fuse must be affixed to
the heat interface unit.
2.5 Personnel requirements
WARNING!
Danger of injury due to insufficient personnel quali-
fication!
If unqualified personnel perform work on the con-
troller, this will result in dangers that can cause
injury and property damage.
– All activities may only be performed by personnel
qualified for the activities.
The personnel qualifications listed in the following are specified for
the different areas of activity in these instructions:
Electrician
An electrician, due to professional training, knowledge and experi-
ence, as well as knowledge of the relevant standards and regula-
tions, is able to perform work on electrical systems and identify and
avoid potential dangers of their own accord.
The electrician is trained for the specific work environment in which
work is carried out and is familiar with the relevant standards and
regulations.
Heating and sanitary technician
The heating and sanitary technician is trained and certified for the
specific area of activity in which he/she works and is familiar with the
applicable standards and regulations.
The heating and sanitary technician is able to perform work on all
heating and water heating systems due to his/her professional
training and experience, and can identify and avoid potential dangers
of his/her own accord.
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Furthermore, the technician must provide proof of his/her profes-
sional qualification that certifies his/her ability to perform work on
heating systems and water heating systems.
The heating and sanitary technician must have read and understood
these instructions.
The skills the heating and sanitary technician must demonstrate
include:
nUnderstanding of technical relationships
nReading and understanding technical drawings and diagrams
nInstallation of system components
nInstallation and connection of heating pipes
nPerforming maintenance work
nDisassembly and repair or replacement of system components
when a problem occurs
Operator
The operator is the person who operates the unit or allows a third
party to use/employ the system and who assumes the legal product
liability for protecting the user or third parties during operation.
The operator is also responsible for adhering to the maintenance
intervals.
The operator has been trained by manufacturer and sub-contractors
in use of the unit and its components, and can identify potential dan-
gers of their own accord and avoid dangerous situations.
Only persons who can be expected to perform their work reliably may
be approved as service personnel. Persons with an impaired ability to
react, e.g. due to drugs, alcohol or medication, are not approved as
service personnel.
Observe the age-related and vocation-specific regulations applicable
at the site of use when choosing personnel.
WARNING!
Danger to life for unauthorised persons due to dan-
gers in the work area!
Unauthorised persons who do not satisfy the
requirements described here are not aware of dan-
gers in the work area. This is why there is a danger of
severe injuries or even death for unauthorised per-
sons.
– Keep unauthorised persons away from the
danger and work area.
– If in doubt, speak to the persons and instruct
them to leave the danger and work area.
– Stop work as long as unauthorised persons are in
the danger and work zone.
Essential requirements
Unauthorised persons
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2.6 Environmental protection
ENVIRONMENT!
Danger to the environment due to incorrect use of
substances hazardous to the environment!
Considerable damage to the environment can occur
in the event of incorrect use of substances haz-
ardous to the environment, and in particular in the
event of disposal.
– If substances hazardous to the environment are
accidentally released into the environment, take
suitable measures immediately. If in doubt,
inform the responsible local authorities about
the damage and ask about suitable measures to
take.
– Do not allow circuit boards and the HMI to enter
water bodies, the sewerage system, the ground
or household waste collection, and instead have
them recycled or disposed of by a specialist
company.
Danger to the environment
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3 Overview
3.1 Functional principle
The controller is a component of the heat interface unit. This controls
the heat interface unit and verifies the current measurements. The
domestic hot water control cycle is comprised of a controllable valve,
a temperatur sensor on both the primary and secondary sides, and a
flow rate sensor. The temperature sensor in the heating supply and a
controllable valve are used as a basis to control the heating supply.
An HMI is connected to the circuit board for the operation of the con-
troller ( Ä Chapter 6.1 ‘Connecting the HMI’ on page 25 ). Parameters
are setting using this HMI (
Ä Chapter 6.2.1 ‘Setting parameters on
the HMI’ on page 25 ).
3.2 Connection points
The USB connection is used to load and save parameters and soft-
ware onto the controller. The USB connection is also used for saving
data.
The LAN connection is used to connect the HMI to the circuit board
and allows operation of the controller.
All components that are managed by the controller are connected to
the terminals on the terminal block.
The following components are connected to the terminals:
nSensors ( Ä ‘Sensors’ on page 16 )
nCirculation pump
nMixer valves for hot water und heating control
nValve for keep warm module
Function of the controller
Operation
USB connection
Fig. 1: USB connection
LAN connection
Fig. 2: LAN connection
Terminals
Fig. 3: Terminal block
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The sensors send the current values to the controller. The sensors
are plugged into the terminal block.
Provision is made for the following sensors:
nFresh water flow rate sensor
nDomestic hot water temperature sensor
nHeating supply temperature sensor
nStorage water temperature sensor
3.3 Components of the controller
The controller box (Fig. 4) is integrated in the heating interface unit.
The controller box contains the circuit boards (Fig. 4/1), the voltage
transformer (Fig. 4/2), the fuse (Fig. 4/3) and the terminal block
(Fig. 4/4).
1LAN connection
2 LED status display
3 Relay
4 Terminal strips for sensor inputs and control signals
5 USB connection
The circuit board features potential-free contacts (Fig. 5/2) to which
the terminal block is connected. The LAN connection (Fig. 5/1) is
used to connect the HMI to the circuit board in order to enter settings
and operate the controller. The USB connection (Fig. 5/4) is used to
load and save settings and software. The saved settings are retained
even after a power failure.
The LED status display (Fig. 5/2) indicates the status of the con-
troller.
The following status are displayed:
Sensors
Controller box
Fig. 4: Controller box
Circuit board
Fig. 5: Circuit board
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Signal Description
Continuous
light, green
Controller operating
Flashing
light, green
Controller starting
Continuous
light, red
Controller stopped
The voltage transformer supplies the circuit board with 24V. Compe-
nents running with 24V are supplied via the circuit boards.
The current consumption by the controller is limited to a maximum of
2.5 A by the integral fuse.
The sensors are connected to the terminal block. The terminal block
is connected to the circuit board and sends the sensor data to the
circuit board.
The terminal block is prewired. Only the wiring on the terminal block
indicated in bold type (see Fig. 9) needs to be completed on site.
Voltage transformer
Fig. 6: Voltage transformer
Fuse
Fig. 7: Fuse
Terminal block
Fig. 8: Terminal block
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Fig. 9: Terminal assignment
3.4 Human machine interface (HMI)
The controller is operated using a human machine interface (HMI) that
is connected to the LAN socket. The HMI is operated using the but-
tons. A number of buttons perform a different function when they are
pressed and held (for more than 2 seconds). The HMI is used to dis-
play the data. Data is only saved to the circuit board.
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Fig. 10: Buttons
Position Element Description
1 [ESC] Exits a parameter setting without saving any changes made.
Returns to the previous page.
When a measurement is activated and [ESC] is pressed and held, a trend
recording starts on the display.
2 [ALARM] Flashes red as soon as there is a new error message.
Jumps directly to the current error message, or to the full list of alarms.
3 [INFO] Jumps to the start page.
4 Heading Describes the page being displayed.
5 Row selected/
number of rows
Indicates how many rows there are on the page, and which row is currently
activated.
6 Indicates which user level is active:
nNo key = not logged in
n= User
n= Service
n= Factory
7 [UP] Moves one row up in the list. Counts upwards when numbers are displayed.
Counts upwards faster when pressed and held.
8 [DOWN] Moves one row down in the list. Counts downwards when numbers are dis-
played.
Counts downwards faster when pressed and held.
9 [ENTER] Selects an element.
Confirms the selection.
The log-in page is opened when pressed and held.
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4 Functional description
4.1 Operating modes
The heat interface unit operates using the standard controller func-
tion in automatic mode. Measurements can be viewed, and setpoints
can be entered.
The signals for the heat interface unit are determined manually in
manual mode. The setpoints for the parameter settings are ignored
when manual mode is active. A switchover to automatic mode occurs
after a predefined period of time.
The following components are controlled in manual mode:
nValve for domestic hot water
nValve for heating supply
nHeating circulation pump
nValve for keep warm function
Legionellae are killed off by thermal disinfection in this operating
mode. The lines are flushed at a water temperature of at least 55 °C
over a preset period. Once this preset period has elapsed, a switch-
over back to automatic mode occurs.
WARNING!
Proliferation of legionellae due to stagnant water!
If the unit is not used for an extended period, there is
a risk of the proliferation of legionellae due to stag-
nant water.
– Upon restarting, set the operating mode to
“Thermal disinfection” (Legio) to flush the
drinking water lines with hot water (
Ä Chapter
6.3 ‘Setting the operating mode’ on page 26 ).
Legionellae are bacteria of which one species is
harmful to humans. Legionellae can easily proliferate
in pipes with warm, stagnant water. Flushing the
pipes at a water temperature of at least 55 °C kills off
the legionellae.
All components of the system are activated to test their function for
approx. 1 min. in an automated process in this operating mode. Once
this time has elapsed, a switchover back to automatic mode occurs.
Automatic mode (Auto)
Manual mode (Man)
Thermal disinfection (Legio)
Test procedure (Test)
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