flamco Logotherm LogoFresh XL-Line User guide

www.aalberts-hfc.com
ENG Installation and operating instruction
Logotherm
LogoFresh XL-Line

Manual LogoFresh XL Line 100 - 120
2
Contents
1. Safety instructions.............................................................................................................. 3
1.1 Intended use ....................................................................................................................................4
1.1.1 Use for intended purpose...............................................................................................................................4
1.1.2 Improper use...................................................................................................................................................5
1.2 Device designation ...........................................................................................................................5
1.3 Hazard notes ....................................................................................................................................5
1.4 What to do in the event of breakdown or leaks..................................................................................6
1.5 Spare and wear parts........................................................................................................................6
1.6 Requirements on trained engineers..................................................................................................6
1.7 Liability and copyrights....................................................................................................................7
1.8 Earth bonding or protective earthing in accordance with VDE ...........................................................7
2. Unit description and product details ..................................................................................... 7
2.1 Technical data ..................................................................................................................................8
2.2 Dimensions and connections ............................................................................................................8
2.3 Design and configuration..................................................................................................................9
2.4 Performance values..........................................................................................................................9
3. Functional description........................................................................................................10
3.1 Installation example.......................................................................................................................10
4. Hydraulic and electrical scheme ..........................................................................................11
5. Installation........................................................................................................................14
5.1 Heating connection ........................................................................................................................14
5.2 Domestic water connection ............................................................................................................14
6. Commissioning..................................................................................................................15
6.1 Flushing and filling.........................................................................................................................15
6.2 Initial Commissioning.....................................................................................................................15
7. Operating instructions........................................................................................................16
7.1 Domestic water circulation.............................................................................................................16
7.2 Primary and circulation pump........................................................................................................16
7.3 3-way primary mixer with servomotor............................................................................................17
7.4 Shut-o..........................................................................................................................................17
7.5 Manual air bleed device..................................................................................................................17
7.6 Additional information regarding the installation and commissioning ............................................18
8. Maintenance and Service ....................................................................................................18
8.1 Heat exchanger ..............................................................................................................................18
9. Diagrams ..........................................................................................................................19
9. Decommissioning, disassembly, environmental protection and disposal of electrical and
electronical equipment...............................................................................................................22

ENG
We reserve the right to change designs and technical specifications of our products.
3
1. Safety instructions
Please follow these safety instructions carefully to prevent hazards and injury to
persons and property.
These operating instructions are primarily designed for the safe use and installation of the device and
make no claims to completeness.
These operating instructions are valid only for the described device and are not subject to the
manufacturer’s revision service. The sketches and drawings they contain are not suitable to scale.
• Keep the operating instructions within easy reach of all employees instructed to carry out work on the
device so that they can refer to them as required.
• Keep the operating instructions in a clean, complete and legible condition throughout the entire period
of use.
• Read the operating instructions before working on the device for the first time and consult them
whenever uncertainties or doubts arise as to how the device should be handled.
• Should you come across any discrepancies when reading these operating instructions or should
anything remain unclear, please contact the manufacturer.
Target group
These instructions are intended exclusively for authorised trained experts.
Only trained experts/installers authorised by the respective competence authority are permitted to work
on heating systems and domestic water, gas and electric circuits.
Regulations
When carrying out work, you must comply with:
- The statutory accident prevention regulations,
- The statutory environmental protection regulations,
- Liability/Insurance regulations,
- The pertinent safety requirements of DIN, EN, DVGW, VDI, TRGI, TRF and VDE,
- ÖNORM, EN, ÖVGW-TR Gas, ÖVGW-TRF and ÖVE,
- SEV, SUVA, SVGW, SVTI, SWKI and VKF,
- And all new and regionally applicable regulations and standards
Instructions for working on the system
- Disconnect the system from the mains and monitor it to ensure that no voltage is being supplied
(e.g. at the separate cut-out or a main switch).
- Secure the system from restarting / switching to auxiliary power supply.
- WARNING! Risk of scalding at media temperatures: >60C
Note: If high primary temperatures >60°C are to be expected, thermostatic scald protection must be
provided for a domestic hot water tapping point in order to limit the outlet temperature accordingly.

Manual LogoFresh XL Line 100 - 120
4
Permissible mains supply and operating parameters
- Heating side/primary side: Permissible pressure rating:
Max. permissible operating
PN10
90°C
- Sanitation side: Permissible pressure rating:
Max. permissible operating
PN10
90°C
Environmental and connection conditions:
• Permissible ambient temperature: 5...40°C (non-condensing), dry ambient conditions: Avoid installing the
station in areas with high ambient humidity, as there is an increased risk of corrosion.
• The devices must be installed in enclosed, dry, frost-free spaces
• Any noise emissions or radiant heat from the station must be taken into account in the choice of installation
site
• Observe the safety areas in accordance with EN 60529 when designing and installing the system
• The fire protection classes of any thermal insulation used must be observed
• Device protection code in accordance with EN 60520 IP42
• Any sanitary installation must be made safe in compliance with DIN 1988 or DIN EN 806, i.e. with the use of a
safety valve and, where applicable, an expansion vessel.
1.1 Intended use
1.1.1 Use for intended purpose
Heat interface units are used to transfer heat between the supply network and the heat consumer.
Heat interface units may only be used for this purpose in compliance with the maintenance and operating
instructions and all relevant standards and regulations. All instructions in the operating instructions must be
followed and the maintenance plan adhered to.
Any deviation from the intended use may cause hazards and is fundamentally not permitted.
Appropriate use in heating and domestic water systems must be in accordance with the applicable DIN and local
standards. Installing and operating the assembly incorrectly will invalidate any warranty claims. The shut-o
valves may only be closed by an approved specialist when servicing, otherwise the safety valves will not work.
Caution:
Do not make any changes to the electrical components, the design of the system or the hydraulic
components! This would adversely impact on the safe function of the system.
Instructions concerning the place of use:
Before using our products, they must be checked regarding their suitability for the respective planned
application. In particular for heating systems, please take into account the properties of the heating water in
accordance with VDI 2035 to protect the heating system and, for domestic water applications, the water quality
at the place of use.
In the case of critical water qualities, please take suitable measures where necessary (e.g. water treatment) to
prevent functional impairment and/or damage, e.g. corrosion damage.
In particular, please check the permissible limit values, e.g. electrical conductivity, the pH value,
the water hardness level and the ammonium concentration.
Furthermore, in Germany all applicable norms, regulations and guidelines specific to the federal states must be
taken into consideration, alongside the instructions in the applicable installation and operating manuals.
Further information can be found in the download section of www.flamcogroup.com.

ENG
We reserve the right to change designs and technical specifications of our products.
5
1.1.2 Improper use
Using the device in any way that does not correspond to the intended use may be hazardous and is therefore
prohibited.
In particular, the following is not allowed:
• The use of liquids other than water with the described properties
• Use of the device without prior knowledge of the operating instructions
• Use of the device without legible warning and information signs
• Use of the device in a faulty condition
1.2 Device designation
Designation: LogoFresh
Function: Transfer of thermal energy to the heating supply and hot water preparation
Type: XL-Line 100/120, electronically controlled, with drinking water circulation
Manufacturer: Meibes System-Technik GmbH, Gerichshain
1.3 Hazard notes
The safety and warning information draws attention to residual hazards that cannot be avoided
due to the design and construction of the device. Please always observe the measures shown for
avoiding these hazards.
Never alter or modify the unit by yourself. Such work may only be carried out by trained, specialist
personnel. This also applies to the electrical installation.
When the system is in operation, water-regulating components will be hot. Touching these system
components can lead to scalding. The interface station and its heat-carrying components must be operated
with permanent insulation. This insulation not only prevents unnecessary thermal losses,
but also protects against accidental contact and burns. The insulation must therefore only be removed for
maintenance or repair purposes and replaced correctly on completion of such work.
The system is operated using hot, high-pressure water, which can cause scalding on contact.
You should therefore open the bleed or drain valves carefully and not work on pressurised parts.
The control components (controller, servomotors, pumps, etc.) are powered by the mains voltage.
Therefore, always ensure the station is disconnected from the mains supply when carrying out any
maintenance or repair work. Secure the system against unauthorised operation.
Life-threatening electric shocks can be caused by spraying or splashing water. Escaping water may also
disable the safety devices.
Any changes made to the unit that have not been authorised by the manufacturer will invalidate any warranty
claims.

Manual LogoFresh XL Line 100 - 120
6
Residual hazards:
The product has been built in accordance with the most relevant and recognised safety regulations. The
following residual hazards may arise during installation, commissioning, maintenance and disassembly:
Warning: Risk of scalding from high media temperature
• Work with particular caution.
• Use safety clothing (e.g. heat-resistant protective gloves).
• If necessary, surface temperature must be measured before commencing any work.
• Use only designated tools.
Hazard: Risk of injury from electrical voltage
• Only trained and qualified electricians may undertake work on electrical equipment.
• Electrical installation spaces must always be kept locked.
Warning: Risk of cuts and scratches due to the possibility of sharp edges
• Work with particular caution.
• Use safety clothing (e.g. protective gloves).
Warning: there is a risk of impact/crushing if the station falls over
• Wear personal protective equipment (such as protective work shoes).
1.4 What to do in the event of breakdown or leaks
• Close media lines using the appropriate valve.
• Contact a suitably trained expert or customer service of the manufacturer.
The device will only be cleared for operation again when the trained engineer has remedied the fault
and restored the device to its intended condition.
1.5 Spare and wear parts
All spare parts to be used, must correspond to the technical requirements defined by Meibes System-Technik
GmbH. This is guaranteed only by using genuine spare parts. The manufacturer is not liable for damage
caused by the use of unapproved spare parts or ancillary materials. Appropriate spare parts can be found in
our documentation.
1.6 Requirements on trained engineers
A qualified professional must have undergone advanced technical training and have suicient experience to
independently perform complicated tasks or work associated with residual hazards. Each experience refers
to a certain speciality, e.g. Maintenance, Electrical and/or HVAC Technician In preparation for impending
work, a qualified professional must be able to correctly estimate the feasibility, risks and hazards of the work
as well as the equipment required. A qualified professional is expected to understand complex plans and
descriptions of minimum preparation, and to obtain missing and required detailed information by suitable
means.
The qualified professional must be able to restore and verify the intended/original state of the system.
A worker can be a trained expert in several fields. For the performance of electrical works, only trained
electricians according to DGUV regulation 3 may be used.

ENG
We reserve the right to change designs and technical specifications of our products.
7
1.7 Liability and copyrights
We reserve all copyrights to this document. Any misuse, in particular reproduction or disclosure to third
parties, is prohibited.
This original operating manual may not be reproduced or distributed, either in part or in its entirety, without
the express permission of the manufacturer. This also applies to translations of this document and storage on
other media. This document must not be used outside its intended purpose.
These installation and operating instructions must be given to the customer. The technician carrying out
and/or authorising the work (e.g. installer) must explain the functioning and operation of the system to the
customer in a readily comprehensible way.
1.8 Earth bonding or protective earthing in accordance with VDE
A terminal for earth bonding is provided on all interface stations. An appropriately labelled stud can
be found on the base plate for this purpose. Connection cross-section according to the applicable
standards and regulations.
2. Unit description and product details
Product details:
• Electronically controlled fresh water station for high draw-o capacities with precise regulation of the
temperature
• Hygienic domestic hot water preparation according to the continuous flow principle
• Two performance variants: (A) Up to 100 l/min or (B) 120 l/min (10  60°C, flow = 75°C)
A) B)
• Speed controlled high-eiciency pumps with a high output
• Electronic primary mixer for infinitely variable adaptation of the output and regulation of the temperature
in the heat exchanger
• Simple operation and user-friendly control functions via multi-language full text display
• Housing with EPP thermal insulation, stainless steel piping
• Dierent operating modes, such as a hot water preparation, reheating, circulation and disinfection function

Manual LogoFresh XL Line 100 - 120
8
2.1 Technical data
Output capacity: (10  60°C, flow = 75°C) Version A: 100 l/min (346 kW at 60°C)
Version B: 120 l/min (415 kW at 60°C)
Connections: 1 ½" female thread (HW, DCW, supply/return line buer)
1 ¼" female thread (circulation)
Housing / insulation: EPP thermal insulation
Power supply: 230 V / 50 Hz
Permissible pressure level - heating: PN 10
Permissible pressure level - sanitary: PN 10
Max. operating temperature: 90 °C
2.2 Dimensions and connections
Mounting hole centred
on the base plate
LogoFresh XL-Line 100 & 120 connection:
DCW, HW, flow / return buer: 1 ½" female thread
Circulation: 1 ¼" female thread
(Cold water inlet without shut-o, installation of DCW safety valve and expansion vessel provided by
customer)
Dimensions (H x W x D):
LogoFresh XL-Line 100: 1137 x 500 x 340 mm
LogoFresh XL-Line 120: 1137 x 530 x 340 mm
(incl. shut o ball valves)
Weight: Approx. 50 kg

ENG
We reserve the right to change designs and technical specifications of our products.
9
2.3 Design and configuration
domestic hot water
Connection: 1½" female thread
Heating medium supply line
to the buer tank
Connection: 1½" female thread
Domestic water circulation
Connection: 1¼" female
thread
Stainless steel
Sanitary circulation pump
Wilo Stratos PARA 25/1-8
Flow sensor
Domestic cold water inlet,
Connection: 1½" female
thread (without shut-o)
Heating medium return line
to the buer tank,
Connection: 1½" female thread
Primary mixer
Stainless steel
heat exchanger
incl. insulation
Primary pump
Wilo Stratos PARA 25/1-12
Fresh water controller
Sorel LFWC
Manual air bleed device 3/8”
Backflow preventer
Fill and drain ball valve
Note: See also the separate operating instructions for the controller and control panel
2.4 Performance values
LogoFresh XL-Line 100
Domestic water heating K 40 (10  50°C) 50 (10  60°C)
Supply temperature to the buer °C 55.0 60.0 65.0 70.0 75.0 65.0 70.0 75.0 80.0 85.0
Return temperature to the buer °C 29.9 26.5 23.6 21.0 19.0 35.2 31.0 28.4 25.1 22.6
Domestic hot water draw-o volume* l/min 68.0 91.0 100.0 100.0 100.0 64.0 84.0 100.0 100.0 100.0
Domestic hot water power kW 190.0 252.0 277.4 277.4 277.4 224.0 291.0 346.1 346.1 346.1
Primary flow rate l/h 6600 6600 5890 4982 4375 6600 6600 6560 5590 4932
Primary pressure loss bar 0.61 0.61 0.50 0.36 0.28 0.61 0.61 0.60 0.45 0.33
Primary residual delivery head bar 0.30 0.30 0.51 0.75 0.86 0.30 0.30 0.30 0.60 0.78
Secondary pressure loss bar 0.25 0.39 0.46 0.46 0.46 0.21 0.34 0.46 0.46 0.46
LogoFresh XL-Line 120
Domestic water heating K 40 (10  50°C) 50 (10  60°C)
Supply temperature to the buer °C 55.0 60.0 65.0 70.0 75.0 65.0 70.0 75.0 80.0 85
Return temperature to the buer °C 27.5 24.0 21.8 19.3 17.4 32.3 27.9 25.5 22.9 20.5
Domestic hot water draw-o volume* l/min 83.0 110.0 125.0 125.0 125.0 79.0 101.0 120.0 125.0 125.0
Domestic hot water power kW 231.0 303.0 346.0 346.0 346.0 273.0 350.0 415.0 432.0 432.0
Primary flow rate l/h 7400 7400 7050 6013 5320 7400 7400 7400 6710 5970
Primary pressure loss bar 0.60 0.60 0.51 0.39 0.32 0.60 0.60 0.60 0.48 0.38
Primary residual delivery head bar 0.21 0.21 0.30 0.62 0.76 0.21 0.21 0.21 0.44 0.64
Secondary pressure loss bar 0.26 0.43 0.55 0.55 0.55 0.24 0.36 0.50 0.55 0.55
* Max. draw-o volume (output-limited)

Manual LogoFresh XL Line 100 - 120
10
3. Functional description
The electronically controlled fresh water station provides several residential units with fresh domestic hot
water. The energy is supplied by a heating water buer tank. Drawing domestic hot water from the tank
triggers the heating pump. The domestic water is heated by a stainless steel heat exchanger according to
the continuous flow principle. The speed regulation on the primary pump keeps the set hot water outlet
temperature constant. The primary mixer reduces very high heating medium temperatures, thus shiing
them into the normal control range of the primary pump. Low heating medium temperatures also prevent the
accumulation of limescale in the plate heat exchanger. The circulation pump makes it possible to recirculate
the domestic water constantly or according to an automatic timer.
The benefits:
• Hot water preparation on demand
• Low return temperature of the heating water (depending on the design)
• No hot water storage, which considerably reduces the growth of legionella
3.1 Installation example
Hydraulic integration based on an example with a heating water buer tank and solar system: No feeder
pump may be installed unless it has been hydraulically decoupled. The primary pump takes the heating
medium from the buer.
Residential unit 4
Solar
Boiler
Buer tank
Supply line buer
LogoFresh
XL-Line
station
Return line buer
Domestic hot water
Z
Cold water
Residential unit 1
Residential unit 2
Residential unit 3
Cold
water

ENG
We reserve the right to change designs and technical specifications of our products.
11
4. Hydraulic and electrical scheme
Legende:
P1
P2
R2*
R3
S1
S2
S3
S4*
S5
S6*
S9
V1
V2
V3
V4*
1
2
3
4
6
7*
9
primary pump
sanitary circulation pump
relay output (230V) - cascade valve
potential-free relay output
sanitary circulation sensor
unmixed primary flow (heating) temp. sensor
mixed primary flow (heating) temp. sensor
buer tank temp. sensor
domestic hot water temp. sensor
primary return (heating) temp. sensor
drinking cold water flow temp. sensor
0-10V signal primary pump
0-10V signal sanitary circulation pump
0-10V signal primary mixer
return temp. switching module (PWM)
plate heat exchanger
return flow inhibitor
Cotroller, type LFWC
ball valves
Air vent/drain on the heating side
return temp. switching module
primary flow mixing valve
*optional
The applicable operating instructions for individual components (such as control, pump, servomotor) must
also be observed.
Cascading LogoFresh XL-Line 100/120 with DHWC (Circulation), electronically controlled:
With the possibility of changing the basic operation to a cascade
PF
PR
DHW
DHWC DCW
DCW
**Cascade set consisting
of:
zone valve, drinking water
safety valve,
Wago clamp and cable, CAN
BUS cable and 2 resistors
A notice:
When electr. A CAN BUS
cable is supplied to connect
a cascade and some
resistors excess.
Legend: PF - heating flow
PR - heating return
DCW - drinking cold water
DHW - domestic hot water
DHWC - drinking water circulation
I-V - fresh water station XL-Line with DHWC
A-E - one optional cascade set** item no.: M10270.711
F - tapping point for drinking water

Manual LogoFresh XL Line 100 - 120
12
Notes:
• The same settings must be made for all circulation pumps in the cascade network!
• Drinking water connection lines from stations to distribution/collecting lines should be as short as possible
to keep stagnation to a minimum.
• Keep the primary connection lines (e.g. from the heating water buer cylinder) as short as possible and
without an additional supply pump.
• For service/maintenance work, we recommend providing a switch-o device for disconnecting all poles and
all sides, in accordance with DIN VDE 0105-100!
• Install CAN-BUS terminating resistors invisibly in the controller housing.
Connection of LogoFresh XL-Line to heating water buer tank
Representation of LogoFresh XL-Line with optional heating water buer cylinder return stratification:
PF
PR 2
PR 1
Legend: 1
2
3
4
6
7*
8
9
P1
P2
PR1
PR2
A
B
C
D
E
plate heat exchanger
return flow inhibitor (RV)
controller, type LFWC
shut-o valve
venting option, heating side
return temp. switching module
heating water buer tank
flow mixing valve
heating pumps
DHWC pump
lower area of the heating water buer tank
central area of the heating water buer tank
Hydraulic connections at the LogoFresh:
heating flow (PF)
heating return (PR)
domestic hot water (DHW)
domestic hot water circulation (DHWC)
drinking water, cold (DCW)
R1
R2*
L'
V1
V2
V3
V4*
S9
S1
S2
S3
S4*
S5
S6*
power supply for circulation pump P2
relay output (230V) - cascade valve
voltage supply to heating pump P1
signal to heating pump P1
signal to sanitary circulation pump (DHWC)
P2
mixing valve signal (9) primary flow
return temp. switching module (PWM)
cold water flow sensor
Temperature Sensors:
sanitary circulation sensor
unmixed primary flow (heating) temp. sensor
mixed primary flow (heating) temp. sensor
buer tank temp. sensor
domestic hot water temp. sensor
primary return (heating) temp. sensor
*optional

ENG
We reserve the right to change designs and technical specifications of our products.
13
Representation and assembly of optional components (article code no.: M10270.712):
for heating water buer cylinder return stratification
PR2
PR1
Please also note the operating instructions for the controller.
Electrical connections
Observe the regulations of the EVU! In order to prevent a "dry run" of the pumps, the LogoFresh may
only be connected to the mains voltage once the system has been filled and vented.
The LogoFresh is delivered fully wired. The connection to the electrical mains 230 V/ 50 Hz AC is made using
the installed mains connection cable. This circuit must be protected with a 10 A circuit breaker.
Wiring scheme of the LFWC in the LogoFresh XL-Line:
Surface-mount
box with WAGO
terminals 1
Low voltages
max. 24 VAC / DC
1optionally required for storage stratification
Mains voltage
230 VAC 50-60Hz

Manual LogoFresh XL Line 100 - 120
14
Wiring scheme (optional) cascade valve on the LFWC with LogoFresh XL-Line:
Low voltages
max. 24 VAC / DC
Cascading
valve
5. Installation
Please follow the safety instructions contained in this document during installation! Installing and operating
the stations incorrectly will invalidate any warranty claims. Hazards resulting from adjoining masonry
components must be avoided. Free access to the station and connection lines must be ensured. Make sure the
connection to the station is tension-free. The station should be installed on a dry wall that can take the load
and directly adjacent to a heating water buer tank where possible.
Note:
• Heat exchanger water capacity > 3 litres
• Domestic water safety valve not supplied with the station
• Dirt traps to protect the system are provided in the station inlet if required
5.1 Heating connection
Once the station has been installed correctly, connect the heating circuit.
Connection D 1 ½" female thread Heating medium return line to the buer tank
Connection B 1 ½" female thread Heating medium supply line to the buer tank
Permissible pressure level: PN 10
Max. permissible operating temperature: 90°C
5.2 Domestic water connection
Please note:
The safety fuse on the cold water side must comply with DIN EN 806, DIN 1988 and DIN EN 1717, i.e.
with a safety group and expansion vessel if necessary.
Connect the domestic water circuit once the station has been installed correctly.
Connection A 1 ½" female thread Hot water outlet
Connection E 1 ½" female thread Cold water inlet
Connection C 1 ¼" female thread Circulation return
Permissible pressure level: PN 10
Max. permissible operating temperature: 90°C

ENG
We reserve the right to change designs and technical specifications of our products.
15
6. Commissioning
Before using our products, they must be checked for their suitability for the intended application.
Please pay special attention to the water quality at the place of use for drinking water applications.
In the case of critical drinking water quality, please take suitable measures (e.g. water treatment) to avoid
functional impairments and/or damage water treatment) , e.g. corrosion damage.
Check especially permissible limit values, e.g. for the electrical conductivity, the pH value, the German
hardness level, ammonium concentration. Further information can be found in the "Docfinder" section at:
www.flamcogroup.com.
Aer installation or maintenance work and prior to commissioning, all media lines must be connected in
accordance with the must be connected in accordance with the existing plans and the intended condition
must be established. Ensure that all materials, tools and other equipment required for the work are removed
from the working area of the unit. equipment required for the work have been removed from the working area
of the unit.
6.1 Flushing and filling
Note for the installer:
Heating systems must be flushed through prior to commissioning in accordance with the local regulations,
such as DIN EN 14336, VOB ATV C DIN 18380 or VDI 2035. Aer the system has been filled for the first time, the
recirculation pump must be le to run for about 1 hour before it can be switched o for a longer period.
Before starting, all shut-os must be opened and the servomotor of the primary mixer must be manually
set to 50% by hand (observe manufacturer's documents). to 50% by hand (observe the manufacturer's
documents), so that all paths are open. Flushing, filling and venting must be carried out professionally and
properly. Before filling, connecting and commissioning the station, the entire system must be carefully
flushed. All connections must be checked, checked for leaks and tightened if necessary. Screw connections
must be securely countered when retightening. Aer filling the system, the station must be vented and the
heating system refilled if necessary. The venting options on the station must be used.
Aer completion, the servomotor of the primary mixer must be manually reset to automatic. automatic.
Any dirt traps in the system must be cleaned before commissioning.
6.2 Initial Commissioning
Commissioning takes place aer the station has been flushed and filled and a pressure test has been carried
out. All heating and sanitary installations must be completed. During commissioning the station must be
vented occasionally (venting options: see point 2.3). The initial commissioning must be carried out by a
trained specialist and the settings must be recorded in a log (for subsequent maintenance work). (for later
maintenance work). During commissioning, please also observe the instructions given in the chapter Fehler!
Reference source could not be found.
The voltage supply of controllers must be permanently present at the pumps when the system is filled.
The following prerequisites must be fulfilled for successful commissioning:
• All components of the system are installed and mounted.
• The entire system is leak-proof.
• All necessary electrical connections have been made.

Manual LogoFresh XL Line 100 - 120
16
7. Operating instructions
7.1 Domestic water circulation
The domestic water circulation system is used to provide a constant supply of hot water to the taps and
to flush the domestic water pipes (↔ growth of legionella). Please ensure you comply with the relevant
technical regulations and guidelines.
A check valve is installed on the pressurised side of the circulation pump on the domestic water side in order to
prevent unwanted circulation. The controller can be used to control the domestic water circulation. The factory
setting must be dependent on the object adapted.
DN32 backflow preventer
• in the domestic water circulation
• with 2" seal
• The illustration shows the installation position
and the flow direction of the return inhibitor
7.2 Primary and circulation pump
The "red button", the central control element, with three adjustment ranges (1-3) is located on the front of the
control module. The "red button" must be set to Ext.In (1) for the proper operation of the system. Settings (2)
and (3) are used to deactivate the controller and set manual mode. Only use manual mode for a functional test!
Legend
1. Analog input 0...10 V
2. Delta p-c control type
3. Delta p-v control type
4. Red control button
5. Motor housing
6. M6 hexagon socket screw
7. Power supply
8. Control cable
Circulation pump, type: Wilo Para MAXO Z 25-180-08-F02
Please also comply with the corresponding documentation pertaining to the recirculation pump!

ENG
We reserve the right to change designs and technical specifications of our products.
17
7.3 3-way primary mixer with servomotor
A handle is located on the front of the servomotor. The opening angle of the mixer can be read on this. In
addition, manual mode can be set by gently pulling out the handle (1) and adjusting it manually (2). Please
note that the controller is disconnected in manual mode. The handle must be pressed in for the system to
operate properly! Only use manual mode when flushing, filling and bleeding the system!
Primary mixer Servomotor
Handle
Illustration shows the "automatic mode" setting. Illustration shows the "manual mode" setting.
Please comply with the corresponding documentation pertaining to the servomotor!
7.4 Shut-o
The shut-o with a plastic handle (see Fig.) has a square-end connection (see Fig.) under the handle aer it
has been pulled down. If the handle has been removed, this square-end connection can be turned with an
appropriate socket wrench, thus opening or closing the shut-o. The opening angle of the shut-o is also
visible, i.e. whether it is open or closed. Check the opening angle during the commissioning. The full opening
of the shut-o is shown in the illustration.
Marking on the spindle
(fully open)
7.5 Manual air bleed device
A manual air bleed device (see Fig.) is located on the heat exchanger inlet on the
primary side (heating medium) for manually bleeding the heat exchanger
(primary side).
Please only use a suitable tool to open the air vent! The flushing, filling
and bleeding of the system must be carried out professionally before the
commissioning to ensure that it operates properly.
manual air vent

Manual LogoFresh XL Line 100 - 120
18
7.6 Additional information regarding the installation and commissioning
Dirt traps to protect systems are provided in the station inlet if required.
• Commission the system once the station has been flushed and filled and a pressure test has been carried out.
• All installations on the heating and domestic water side must be complete.
• Bleed the system every so oen during the commissioning process (heat exchanger above the manual bleed
device at the rear/top)
• Please refer to the LogoFresh XL-Line 100/120 operating instructions for the commissioning
• Please observe the "Checklist" chapter.
• The controller can only be actuated through the "Controller function" switch if the system has been put into
operation correctly.
8. Maintenance and Service
Inspection, maintenance and service work on the interface station and heating system must be carried out and
documented (in accordance with the relevant inspection guidelines) by a trained expert (installation company
or Flamco customer service).
The condition of parts must be checked and these must be replaced if necessary. The interface stations must be
checked regularly for leaks.
During maintenance work, the safety instructions and residual dangers (see Section 1) must be observed!
For recommissioning, please also follow the points in Section 6.
When using nitrite-free anti-freeze and corrosion protection agents with an ethylene glycol base, please pay
close attention to the manufacturer's documentation, particularly with respect to the concentration and
specific additives.
Dierent water qualities and degrees of hardness can also influence the service life of individual components of
devices. Therefore, regular inspection and maintenance (according to current technical rules) should be carried
out annually to maintain the system's eiciency and functional safety.
If you have any questions, please contact your installation company or Flamco customer service.
8.1 Heat exchanger
Note:
If the water is hard, limescale deposits can build up on hot areas of the heat exchanger at high water
temperatures. These should be removed at regular intervals by appropriate means (e.g. flushing). Only use
substances approved for use with domestic water and heating water.
Information regarding the hardness of the domestic water:
The propensity for natural water to form limescale deposits depends, among other things, on various factors
such as the concentration of calcium and magnesium salts, the pH value and the temperature. If what is known
as the lime-carbonic acid balance has been disturbed by an increase in the pH value and/or the temperature,
the calcium carbonate precipitates in the form of calcite crystals. The applicable standards and corresponding
technical regulations (e.g. DIN and DVGW) must therefore be observed.
Hardness range Millimoles of calcium
carbonate/ litre
Degree of hardness
in °dH
Risk of limescale deposits depending on the
domestic water temperature
< 60°C 60 – 70°C > 70°C
So < 1.5 < 8.4 low low low
Average 1.5 – 2.5 8.4 – 14 low low medium
Hard > 2.5 > 14 low medium high
Note:
Request a water analysis from the local utility companies for testing in the case of known risks or contested
water quality.

ENG
We reserve the right to change designs and technical specifications of our products.
19
9. Diagrams
LogoFresh XL-Line 100 performance data
Required heating-circuit water flow rates when heating domestic water by 50 K (10 at 60°C)
Hot domestic water draw-o volume in l/min
Power limit
Heating-circuit water temperatures (flow)
Heating-circuit water flow rate in l/h
LogoFresh XL-Line 100 performance data
Return temperature when heating domestic water by 50 K (10 at 60 °C)
Hot domestic water draw-o volume in l/min
Return temperature in °C
Heating-circuit water temperatures (flow)
heating water temperatures flow
heating water temperatures flow

Manual LogoFresh XL Line 100 - 120
20
LogoFresh XL-Line 120 performance data
Required heating-circuit water flow rates when heating domestic by 50 K (10 at 60°C)
Hot domestic water draw-o volume in l/min
Power limit
Heating-circuit water temperatures (flow)
Heating-circuit water flow rate in l/h
LogoFresh XL-Line 100 performance data
Return temperature when heating domestic water by 50 K (10 at 60 °C)
Hot domestic water draw-o volume in l/min
Heating-circuit water temperatures (flow)
Return temperature in °C
heating water temperatures flow
heating water temperatures flow