eta System Separation Module Manuel utilisateur
2021-02-17
EN
0000000219
V.006
X.35.15, X.51.0
939003-002
System Separation Module
Operating Instructions
ETA Heiztechnik
Gewerbepark 1
A-4716 Hofkirchen an der Trattnach
Tel: +43 (0) 7734 / 22 88 -0
Fax: +43 (0) 7734 / 22 88 -22
www.eta.co.at
General General information
3
1 General
1.1 General information
Copyright
All contents of this document are property of ETA
Heiztechnik GmbH and are protected by copyright.
Any reproduction, transfer to third parties or use for
other purposes is prohibited without written permission
from the owner.
Subject to technical changes
We reserve the right to make technical modifications
without notice. Printing and typesetting errors or
changes of any kind made in the interim are not cause
for claims. Individual configurations depicted or
described here are only available optionally. In the
event of contradictions between individual documents
regarding delivery scope, the information in our current
price list applies.
Software Description
The software version described in this documentation
corresponds to the version valid at the time of publica-
tion. The software version installed on your product
may differ from that described in this documentation.
A software update to a more recent version can
always be performed. With the appropriate au-
thorisation, the required files can be found at
"www.eta.co.at".
Explanation of symbols
Instructions and information
Layout of safety instructions
SIGNAL WORD!
Type and source of danger
Possible effects
• Measures for avoiding the danger
Types of safety instruction
CAUTION!
On non-compliance with this safety instruction, there is
a risk of material damage.
WARNING!
On non-compliance with this safety instruction, there is
a risk of physical injury.
DANGER!
On non-compliance with this safety instruction, there is
a risk of major physical injury.
1.2 Warranty, guarantee and liability
Requirements
We can only accept liability for the function of our
products if they are correctly installed and operated.
This is only possible if the conditions below are
complied with.
Installation in a dry, frost-proof room
A dry, frost-proof room is required for the installation.
pH value between 8 and 9
The pH value of water used to fill the heating system
must be between 8 and 9.
Frost protection for the secondary side
The maximum frost protection content must be
adjusted to the local conditions and checked on an
annual basis if frost protection is required, for example,
on the secondary side for outdoor heating systems.
Permissible water hardness
In order to protect the heat exchanger from calcifica-
tion, the water hardness of the heating water must be
taken into account. Observe the indications outlined in
ÖNORM H 5195-1, see 8 "Water hardness".
Expanding the control system
Only components provided by us may be used for
expanding the control system, unless these are
generally available standard devices, such as thermo-
stats.
Regularly perform cleaning and maintenance
Cleaning and maintaining the product is essential. The
required steps and intervals are either contained in this
documentation or included as a separate document.
Proper installation
The installing contractor is liable for proper installation
according to the corresponding installation instructions
and the relevant rules and safety regulations. If you as
customer have installed the heating system partly or
entirely without relevant training and in particular
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Warranty, guarantee and liability General
without up-to-date practical experience, without having
the installation checked by a trained and responsible
expert, we exclude defects in our delivery and conse-
quential damages resulting from this cause from our
warranty, guarantee and liability.
Repairs
Repairs are only permitted using spare parts provided
by us. The only exceptions are common standardised
parts such as electrical fuses or fastening materials, as
long as they possess the required features and do not
restrict the functionality of the system.
Repair of defects
For repairs of defects carried out by the customer or by
a third party, ETA shall only bear the costs or remain
obligated by warranty if this work was approved in
writing in advance by the customer service of ETA
Heiztechnik GmbH.
CE-Conformity
5
2 CE-Conformity
CE declaration of conformity
We hereby declare that the product in its standard design as stated here corresponds to the above provisions. The
sole responsibility for issuing this declaration of conformity lies with the manufacturer. The technical documentation
for this product is managed by ETA Heiztechnik GmbH. Signed for and on behalf of:
Manufacturer: ETA Heiztechnik GmbH
4716 Hofkirchen an der Trattnach, Gewerbepark 1, Austria
Product: System separation module with energy-saving pumps
Types: ETA system separation module
EU Directives:
2006/95/EC Legislation relating to electrical equipment: Low Voltage Directive
2004/108/EC Legislation relating to electromagnetic compatibility
2011/65/EU Directive on the restriction of the use of certain hazardous substances in electrical and
electronic equipment (RoHS 2 guideline)
Applied standards:
EN 60335-1:2020 Household and similar electrical appliances - Safety -
Part 1: General requirements
IEC 61000-6 1/2:2005 Electromagnetic compatibility (EMC):
Generic standards - Immunity for residential, commercial and light-industrial environments
(1) and industrial environments (2)
IEC 61000-6 3/4:2011
+ A1:2011
Electromagnetic compatibility (EMC):
Generic standards - Emission standard for residential, commercial and light-industrial en-
vironments (3) and industrial environments (4)
Hofkirchen, 12/01/2021 Ing. Johann Eibelhuber
Quality assurance
DI Ferdinand Tischler
Management
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Technical data Description
3 Description
3.1 Technical data
Connections and components
1 Flow for secondary side
2 Return for secondary side
3 Safety valve with connection for membrane
expansion vessel
4 High-efficiency pump of secondary side
5 Primary side high-efficiency pump
6 Return for primary side
7 Flow for primary side
8 Flow temperature sensor for secondary side
9 Flow temperature sensor for primary side
10 Circuit board [EM-C]
11 Bleed screw
Dimensions
Technical data
Free residual pump head: primary side
Underfloor heating:
13 kW; 75/33 °C; 0.27 m³/h = 7.00 mWs
Radiator heating:
40 kW; 75/50 °C; 1.39 m³/h = 3.00 mWs
Free residual pump head: secondary side
Underfloor heating:
13 kW; 35/28 °C; 1.62 m³/h = 2.20 mWs
Radiator heating:
40 kW; 65/45 °C; 1.74 m³/h = 1.50 mWs
Connections
DN20 (3/4") internal thread
Pump: primary side
Speed-regulated high-efficiency pump (model
"WILO Para RS 15-130/7-50/iPWM1-9")
Pump: secondary side
High-efficiency pump (model "WILO Para 15-
130/6-43/SCU-9"), for differential or constant
pressure operation with bleed function.
Description Function
7
3.2 Function
Mode of operation
On the underside of the module, the heat from heat
producer (e.g.: buffer) reaches the primary side of the
heat exchanger. The speed-regulated primary pump
only conveys enough heating water from the buffer for
the feed temperature required by the heat consumer
on the secondary side to be achieved.
Fig. 3-1: Primary and secondary circuits
A high-efficiency pump is installed on the secondary
side for the heat consumer; its operating mode must be
set manually. The pump characteristic curves can be
viewed under 7 "Commissioning".
Both temperature sensors constantly provide the
ETAtouch control system with information about the
feed temperatures of the primary and secondary sides.
All components have already been connected at the
factory. Power is supplied via a 230 V Schuko socket.
Only the CAN-bus connection to the ETAtouch con-
trol panel may be established.
Contact thermostats are required for underfloor
and wall heating in order to protect the second-
ary side against overheating. If the secondary side is
at risk of frost, an additional contact thermostat must
be installed for the primary side in order to prevent the
heat exchanger from freezing.
Details about contact thermostats can be found under
6.3 "Contact thermostat".
Uncouple the module hydraulically
Run separate piping between the system separa-
tion module and the buffer, and do not install in the flow
between the heat producer and the buffer. Otherwise,
the heat exchanger of the module will be unintention-
ally heated.
Correct connection
Wrong connection
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Secondary side characteristic curve Description
3.3 Secondary side characteristic
curve
Secondary side characteristic curves
Example: underfloor heating with 15 kW and 10 K
spread is attached on the secondary side. The
performance chart shows a flow rate of approx.
1.30 m³/h.
=> 1.30 m³/h a free residual pump head of 3.5 m
occurs on the secondary side with a pressure loss of
approx 1.6 m.
Performance chart
Free residual pump head
1 Pump head
2 Module pressure loss
3 Free residual pump head
Primary spread
Flow - return
Secondary spread
Flow - return
75 °C - 35 °C = 40 K 35 °C - 30 °C = 5 K
75 °C - 33 °C = 42 K 35 °C - 28 °C = 7 K
75 °C - 30 °C = 45 K 35 °C - 25 °C = 10 K
75 °C - 45 °C = 30 K 60 °C - 40 °C = 20 K
Description Primary side characteristic curve
9
3.4 Primary side characteristic curve
Primary side characteristic curves
Example: using the table, a primary side spread of
45 K results for the secondary side underfloor heating
(15 kW, 10 K spread).
The performance chart results in a primary side
flow rate of approx. 0.29 m³/h at 15 kW output and
45 K spread.
=> 0.29 m³/h a free residual pump head of 7.0 m
occurs on the primary side with a pressure loss of
approx 0.2 m.
Performance chart
Free residual pump head
1 Pump head
2 Module pressure loss
3 Free residual pump head
Primary spread
Flow - return
Secondary spread
Flow - return
75 °C - 35 °C = 40 K 35 °C - 30 °C = 5 K
75 °C - 33 °C = 42 K 35 °C - 28 °C = 7 K
75 °C - 30 °C = 45 K 35 °C - 25 °C = 10 K
75 °C - 45 °C = 30 K 60 °C - 40 °C = 20 K
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Installation
4 Installation
Mounting the module on the wall
Mark the position of both mounting screws at the top
and bottom on the wall.
Mount the fixing screws in the wall, hang the module
and fix it in place.
Mounting the screw joints
Mount the screw joints for the secondary side. The
pressure gauge and ball valve on the flow and the
safety valve and a ball valve on the return. Include flat
seals with all screw joints.
Fig. 4-1: Screw joints for the secondary side
Mount both ball valves on the primary side with the
included flat seals.
Fig. 4-2: Screw joints for the primary side
Installing the piping
Connect the piping from the heat producer on the
primary side and to the heat consumer on the second-
ary side.
Table des matières
