BLAUBERG KOMFORT EC S S11 Series User manual

OPERATION MANUAL
EN
KOMFORT EC S S11 Series
KOMFORT EC SB S11 Series
KOMFORT EC SB -E S11 Series
KOMFORT EC SB -E S11 Series
HEAT RECOVERY AND
HEAT AND HUMIDITY RECOVERY AIR
HANDLING UNIT

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KOMFORT EC S/SB(-E) S11
Safety requirements ......................................................................................................................................... 2
Purpose ..................................................................................................................................................................... 4
Delivery set .............................................................................................................................................................. 4
Designation key .................................................................................................................................................... 4
Technical data ........................................................................................................................................................ 5
Design and operating logic ................................................................................................................ 6
Mounting and set-up ........................................................................................................................................ 8
Condensate drainage ...................................................................................................................................... 10
Connection to power mains ......................................................................................................................... 11
Unit control ............................................................................................................................................................ 12
Maintenance .......................................................................................................................................................... 12
Troubleshooting ................................................................................................................................................... 13
Storage and transportation rules ............................................................................................................. 13
Manufacturer’s warranty ............................................................................................................................... 14
Acceptance certificate ...................................................................................................................................... 15
Seller information ................................................................................................................................................ 15
Connection certificate ..................................................................................................................................... 15
Warranty card ........................................................................................................................................................ 15
The user’s manual consisting of the technical details, operating instructions and technical specification applies to the installation and mounting of
the heat recovery air handling unit series KOMFORT EC SB S11 and KOMFORT EC S S11 and of the heat and humidity recovery air handling unit series
KOMFORT EC SB -E S11 and KOMFORT EC S -E S11 (hereinafter „the unit“ as mentioned in the „Safety Requirements“ and „Manufacturer’s Warranty“
sections as well as in warnings and information blocks).
Read the user’s manual carefully prior to installing and operating the unit. Fulfil the user’s manual requirements as well as the provisions of all
the applicable local and national construction, electrical and technical norms and standards.
The warnings contained in the user’s manual must be considered most seriously since they contain vital personal safety information.
Failure to follow the rules and safety precautions noted in this user’s manual may result in an injury or unit damage.
After a careful reading of the manual, keep it for the entire service life of the unit.
While transferring the unit control the User’s manual must be turned over to the receiving operator.
Symbol legend:
WARNING!
DO NOT!
CONTENTS
SAFETY REQUIREMENTS

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KOMFORT EC S/SB(-E) S11
UNIT MOUNTING AND OPERATION SAFETY PRECAUTIONS
• Disconnect the unit from power mains prior to
any installation operations. • Unpack the unit with care.
• Do not lay the power cable of the unit in close
proximity to heating equipment.
• While installing the unit follow the safety
regulations specific to the use of electric tools.
• Do not use damaged equipment or cables
when connecting the unit to power mains.
• Do not operate the unit outside the
temperature range stated in the user's manual.
• Do not operate the unit in aggressive or
explosive environments.
• Do not touch the unit controls with wet hands.
• Do not carry out the installation and
maintenance operations with wet hands.
• Do not wash the unit with water.
• Protect the electric parts of the unit against
ingress of water.
• Do not allow children to operate the unit. • Disconnect the unit from power mains prior to
any technical maintenance.
• Do not store any explosive or highly flammable
substances in close proximity to the unit.
• When the unit generates unusual sounds, odour
or emits smoke disconnect it from power supply
and contact the Seller.
• Do not open the unit during operation. • Do not direct the air flow produced by the unit
towards open flame or ignition sources.
• Do not block the air duct when the unit is
switched on.
• In case of continuous operation of the unit
periodically check the security of mounting.
• Do not sit on the unit and avoid placing foreign
objects on it. • Use the unit only for its intended purpose.
THE PRODUCT MUST BE COLLECTED SEPARATELY AT THE END OF SERVICE LIFE.
DO NOT DISPOSE OF AS UNSORTED MUNICIPAL WASTE.

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KOMFORT EC S/SB(-E) S11
The unit is an energy saving unit based on heat recovery technology and is one of the energy saving components used in the buildings and premises.
The unit is a component part and is not designed for stand-alone operation.
The unit is designed to provide permanent controlled air exchange by means of mechanical ventilation in houses, offices, hotels, cafés, meeting halls
and other mechanically ventilated premises as well as utilization of extract air heat energy to warm up supply purified air.
THE UNIT MAY NOT BE OPERATED BY CHILDREN OR PERSONS WITH REDUCED PHYSICAL, MENTAL
OR SENSORY CAPACITIES, OR LACKING THE APPROPRIATE TRAINING.
THE UNIT MUST BE INSTALLED AND CONNECTED ONLY BY PROPERLY QUALIFIED PERSONNEL
AFTER THE APPROPRIATE BRIEFING.
THE CHOICE OF UNIT INSTALLATION LOCATION MUST PREVENT UNAUTHORIZED ACCESS BY
UNATTENDED CHILDREN.
Transported air must not contain any flammable or explosive mixtures, evaporation of chemicals, coarse dust, soot and oil particles, sticky substances,
fibrous materials, pathogens or any other harmful substances.
Unit Number
User's manual 1 pc.
Control panel user's manual 1 pc.
Control panel 1 pc.
Outdoor temperature sensor 1 pc.
Drain pipe 1 pc.
Packing box 1 pc.
KOMFORT EC S1B160-E S11
Motor type
electronically commutated
Control panel type
_ – ventilation unit with heat recovery
E – ventilation unit with heat and humidity recovery
Air capacity [m3/h]
Unit type
Spigot orientation
S – vertical spigot orientation
Extra components
_– no components available
B – bypass
Casing modication
PURPOSE
DELIVERY SET
DESIGNATION KEY

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KOMFORT EC S/SB(-E) S11
The unit is designed for indoor application with the ambient temperature ranging from +1 °C (+33.8 °F) up to +40 °C (+104 °F) and relative humidity up
to 80 %. Hazardous parts access and water ingress protection rating: IP44 for the unit motors, IP22 for the assembled unit connected to the air ducts.
The unit design is regularly improved, so some models can slightly differ from those ones described in this manual.
Technical data
KOMFORT EC
S160 S11
KOMFORT EC
S1 160 S11
KOMFORT EC
SB16 0 S11
KOMFORT EC
S1B160 S11
KOMFORT EC
SB35 0 S11
KOMFORT EC
S1B350 S11
KOMFORT EC
S2 B 350 S11
KOMFORT EC
SB550 S11
KOMFORT EC
S2 B 550 S11
Unit voltage [V / Hz] 120/ 60
Max. unit power [W] 51 51 51 51 170 170 170 333 370
Max. unit current [A] 0.4 0.4 0.4 0.4 1.3 1.3 1.3 2.3 2.5
Max. air capacity [m3/h] 180 180 180 180 415 415 415 750 625
RPM 3770 3770 3770 3770 3200 3200 3200 3230 3230
Sound pressure level at 3 m distance [dB(A)] 24 22 24 22 28 28 30 28 28
Transported air temperature [°C] from -25 °C (-13 °F) up to +50 °C (122 °F)
Casing material painted steel
Insulation
20 mm
(4/5’’)
mineral wool
40 mm
(1 3/5’’)
mineral
wool
20 mm
(4/5’’)
mineral
wool
40 mm
(1 3/5’’)
mineral
wool
40 mm
(1 3/5’’)
mineral
wool
40 mm
(1 3/5’’)
mineral
wool
20 mm
(4/5’’)
mineral
wool
40 mm
(1 3/5’’)
mineral
wool
20 mm
(4/5’’)
mineral
wool
Extract filter G4
Supply filter F7
Heat exchanger type counter-flow
Heat exchanger material polystyrene/enthalpy membrane
Connected air duct diameter [mm] Ø 125
(Ø5”)
Ø 125
(Ø 5”)
Ø 125
(Ø 5”)
Ø 125
(Ø5”)
Ø 160
(Ø6 1/3”)
Ø 160
(Ø6 1/3”)
Ø 160
(Ø6 1/3”)
Ø 200
(Ø8”)
Ø 200
(Ø8”)
Heat recovery efficiency [%]
88-98/80-94 88-98/80-94 88-98/80-94 88-98/80-94 80-89/76-89 84-94/74-90 85-93/76-90 85-88/72-92 73-88/71-92
Weight [kg] 42 47 44 49 66 55 53 83 62
ØD1
ØD
L
L1
H
B1
L2
B
H1
Model Dimensions [mm]
Ø DØ D1 BB1 HH1 LL1 L2
KOMFORT EC S160 S11 124 (4 4/5”) 18 (5/7”) 348 (13 5/7”) 330 (13”) 650 (1 1/5”) 550 (21 2/3”) 600 (23 3/5”) 388 (15 2/7”) 143 (5 3/5”)
KOMFORT EC S1 160 S11 124 (4 4/5”) 18 (5/7”) 388 (15 2/7”) 370 (14 3/5”) 680 (26 6/8”) 590 (23 2/9”) 640 (25 2/9”) 388 (15 2/7”) 143 (5 3/5”)
KOMFORT EC SB160 S11 124 (4 4/5”) 18 (5/7”) 348 (13 5/7”) 330 (13”) 690 (27 1/6”) 580 (22 5/6”) 600 (23 3/5”) 388 (15 2/7”) 143 (5 3/5”)
KOMFORT EC S1B160 S11 124 (4 4/5”) 18 (5/7”) 385 (15 1/6”) 370 (14 3/5”) 690 (27 1/6”) 620 (24 3/7”) 640 (25 2/9”) 388 (15 2/7”) 143 (5 3/5”)
KOMFORT EC SB350 S11 159 (6 2/7”) 18 (5/7”) 610 (24”) 592 (23 2/6”) 758 (29 4/5”) 675 (26 2/3”) 730 (28 3/4”) 426 (16 3/5”) 230 (9”)
KOMFORT EC S1B350 S11 159 (6 2/7”) 18 (5/7”) 488 (19 2/9”) 475 (18 6/9”) 760 (30”) 673 (26 2/4”) 70 (28 3/4”) 426 (16 3/5”) 190 (7 2/5”)
KOMFORT EC S2B350 S11 159 (6 2/7”) 18 (5/7”) 465 (18 2/7”) 451 (17 5/6”) 737 (29”) 634 (25”) 735 (29”) 426 (16 3/5”) 190 (7 2/5”)
KOMFORT EC SB550 S11 198 (7 4/5”) 18 (5/7”) 741 (29 1/6”) 722 (25 2/5”) 758 (29 4/5”) 675 (26 3/5”) 828 (32 3/5”) 493 (19 2/5”) 284 (11 1/5”)
KOMFORT EC S2B550 S11 198 (7 4/5”) 18 (5/7”) 566 (22 2/7”) 550 (21 2/3”) 737 (29”) 634 (25”) 810 (31 4/5”) 493 (19 2/5”) 259 (10 15”)
TECHNICAL DATA

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KOMFORT EC S/SB(-E) S11
Service panel
Inspection door
Control panel
Supply fan
Extract fan
*Bypass damper
Supply air temperature sensor
Extract lter
Condensate drain pan
Control unit
Drain pipe
Counter-ow heat exchanger
Supply lter
Freeze protection temperature sensor
Outdoor temperature sensor
Electric lead-ins
The unit is equipped with a removable front service panel for maintenance and repair operations. The removable service panel design enables to
change the service side location.
The control unit is accessible for mounting and wiring operations through the inspection door on top of the unit. For accessing the control unit
remove the service panel after mounting and wiring operations. The control unit is accessible for service operations through the swivel mounting plate.
The power cable and ground cable are connected to the control unit via the cable entries. The difference between the supply and extract air flow
temperature leads to condensate generation. Condensate is collected in the drain pan and is removed outside through the drain pipe.
The bypass damper is open or closed depending on operation mode of the unit.
*The bypass damper is available for the models KOMFORT EC S/SB(-E) S11.
Accessories for the unit are available on a separate order:
• FS1 humidity sensor. The unit with the installed humidity sensor maintains a set indoor humidity point. As the extract air humidity rises above
the set point, the unit fans switch to the maximum speed. As the humidity drops down below the set point the unit fans return to the previous
mode. The humidity sensor must be installed and connected by a service technician on site, page 8.
• EVH duct heater for supply air pre-heating. The heater maintains the air temperature in the intake air duct at a point that prevents freezing of
the heat exchanger. A control system regulates heater operation. Mounting and connection of the heater, see page 8.
UNIT OPERATION MODES
Heat recovery
Warm extract air from the room flows into the unit and is cleaned in the extract
filter. Then the air is moved through the heat exchanger and is exhausted
outside with the extract fan.
Cold fresh air from outside flows into the unit, where it is cleaned in the supply
filter. Then the air flows through the heat exchanger and is moved to the room
with the supply fan.
Supply air is heated in the heat exchanger by transferring the heat energy of
warm and humid extract air to the cold fresh air. The air flows are fully separated
while flowing through the heat exchanger. Heat recovery minimizes heat losses,
which reduces the cost of space heating in the cold season.
Service side view
INTAKE AIR
SUPPLY AIR
EXTRACT AIR EXHAUST AIR
DESIGN AND FUNCTIONING

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KOMFORT EC S/SB(-E) S11
Summer cooling mode
The bypass damper is opened, the extract air that is removed from the premises
bypasses the heat exchanger. The air stream temperature remains constant.
INTAKE AIR SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
Backside view
Defrosting mode
The defrosting mode is designed for heat exchanger freezing protection and is activated on feedback from the freeze protection temperature sensor.
The temperature sensor is fixed to the inner surface of the extract air duct.
Defrosting procedure is possible in two ways:
• Shutdown of the supply fan. For details, please refer to the user’s manual
for the control panel. See section „Engineering menu“, „Extra options“,
„Supply fan shutdown“.
Service side view
INTAKE AIR
SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
• Intake air pre-heating with the duct pre-heater EVH (accessory).
For details, please refer to the user’s manual for the control
panel. See section „Engineering menu“, „Extra options“,
„Heating control“.
SUPPLY AIR
EXTRACT AIR
Backside view
INTAKE AIR
EXHAUST AIR

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THE UNIT MUST BE MOUNTED BY A QUALIFIED EXPERT ONLY, PROPERLY TRAINED AND HAVING
THE REQUIRED TOOLS AND MATERIALS.
FS1 HUMIDITY SENSOR MOUNTING AND CONNECTION
The FS1 humidity sensor is not included in the scope of delivery and should be ordered separately. The humidity sensor must be installed prior to unit
mounting.
Install the humidity sensor through the extract spigot into the mount located in the extract section of the casing. Then connect the humidity sensor
contact socket to the respective contact socket on the control unit, refer the wiring diagram.
Exhaust
air duct
Contact socket
for connection
to the control unit
Humidity sensor FS1
Humidity
sensor
contact socket
Fastener
EVH HEATER MOUNTING AND CONNECTION
The EVH pre-heater is not included in the delivery and is available on a separate order.
The heater is rated for connection to single-phase AC 230 V/50 (60) Hz.
The heater is designed for mounting in the air duct connected with the intake spigot of the
unit.
The heater and the air handling unit must be connected via the cable with the DB-9M
connectors through the DB-9F connectors on the unit and on the heater.
SERVICE SIDE CHANGE
Make sure of the correct unit service side selection. Unit mounting position should enable free excess to the service panel for maintenance and service
operations.
INTAKE AIRSUPPLY AIR
EXTRACT AIR EXHAUST AIR
Left-handed modication
INTAKE AIR
EXHAUST AIR
SUPPLY AIR
EXTRACT AIR
Right-handed modification
MOUNTING AND SETUP

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KOMFORT EC S/SB(-E) S11
Service side change for unit mounting:
1
3
2
4

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KOMFORT EC S/SB(-E) S11
UNIT MOUNTING
To attain the best performance of the unit and to minimise turbulence-induced air pressure losses while mounting connect the straight air duct section
to the spigots on both sides of the unit.
Minimum straight air duct length:
• equal to 1 air duct diameter on intake air spigot.
• equal to 3 air duct diameter on supply air spigot.
If the air ducts are not connected or the connected air ducts are too short cover the spigots with a protecting grille or other protecting device with mesh
width not more than 12.5 mm (3/6’’) to prevent uncontrollable access to the fans.
While installing the unit ensure convenient access for subsequent maintenance and repair. The unit must be mounted on a plane wall. Mounting the
unit to an uneven surface can lead to the unit casing distortion and operation disturbance.
Unit wall mounting
Fasteners for wall-mounting are not included into delivery set and should
be ordered separately. While selecting fasteners consider the material of
the mounting surface as well as the unit weight. For details, refer Technical
Data. Fasteners for unit mounting should be selected by Customer Service
technician.
Fix the wall-mounted hook at the required height and hang the unit on
the hook.
Unit floor mounting
Install the unit on the pre-set floor supports, minimum 150 mm (6’’)
height, to ensure sufficient access for the drain pipe connection to the
U-trap and for condensate drain system mounting.
min 150 mm (6’’)
WALLMOUNTED CONTROL PANEL INSTALLATION
Fixing methods for control panel wall mounting: wall surface mounting and wall flush mounting.
Example of wall flush mounting using a junction box is shown in the control panel user’s manual. The junction box and the mounting kit must be
purchased separately.
Condensate drainage is required for the unit series KOMFORT EC SB S11 and KOMFORT EC S S11.
The hole for the drain pipe is at the bottom of the unit. Remove the plug from the hole, open the service panel and install the drain pipe from the
delivery set into the hole, then connect the drain pipe to the sewage system using the SG-32 U-trap kit (available upon separate order). The pipe slope
downwards must be at least 3°.
min 3°
DRAIN HOSE
U-TRAP
SEWAGE SYSTEM
DRAIN PIPE
CONDENSATE DRAINAGE

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KOMFORT EC S/SB(-E) S11
DISCONNECT THE UNIT FROM POWER SUPPLY PRIOR TO ANY ELECTRIC INSTALLATION OPERATIONS.
INSTALLATION SHALL ONLY BE PERFORMED BY A PROFESSIONAL ELECTRICIAN QUALIFIED FOR
UNASSISTED OPERATIONS WITH ELECTRICAL INSTALLATIONS UP TO 1000 V AFTER CAREFUL STUDY
OF THE PRESENT USER’S MANUAL.
THE RATED ELECTRICAL PARAMETERS ARE STATED ON THE RATING PLATE. ANY TAMPERING WITH
THE INTERNAL CONNECTIONS IS PROHIBITED AND WILL VOID THE WARRANTY.
The unit is rated for connection to a single-phase ac 230 V / 50–60 Hz. The unit shall be connected to power supply by means of insulated, durable
and thermal-resistant cords (cable, wires). Connect the unit to power mains using the pre-wired power cord with the Euro Plug XP. Connection is made
through the external automatic circuit breaker with magnetic trip integrated into the fixed wiring system. The rated current of the circuit breaker must
not be below the unit current consumption, refer to the Technical data. The external circuit breaker position must ensure unhampered access for
emergency shutdown of the unit.
Connect the cables to the control unit using the electric lead-ins on the top of the unit and make the electric connections through the terminal block
X1, located in the control unit, in compliance with the external connections wiring diagram.
Access to the control board of the control unit
External connection wiring diagram
14151617
AE +
Gnd O u t
13
B
12
Gnd
11
+12 V
10
no
9
c
8
no
7 6 5
c
3
PE
2
N
1
LL
SM1
L N
SM2
L
2 12 1 2 1
N
U
(no-contact)
BA
+12V
Gnd
P1 PK1
Gnd Out
E+
TE1
Power input 230 VAC
t C
Х1
4
L L N LN

ELECTRIC SHOCK HAZARD!
Design. Description Type Wire**
CCU* DX cooler N0 2x0,75 mm2 (5/64”x1/86”)
SM1* Supply air damper actuator LF230 2x0,75 mm2
(5/64”x1/86”)
SM2* Exhaust air damper actuator LF230 2x0,75 mm2
(5/64”x1/86”)
PK1* Contact from fire alarm panel N0 2x0,75 mm2
(5/64”x1/86”)
P1 Control panel
TE1 Outdoor temperature sensor
* is not included in the delivery.
** Maximum connecting cable length is 20 m!
WARNING! The EVH pre-heater must be connected to power supply prior to connection of the air handling unit!
If the electric heater is not available in the air handling unit while its connection to power supply, the control panel displays DI1 and DI3 errors. To
troubleshoot the errors disconnect the unit from power supply, connect the heater and turn the unit on.
CONNECTION TO POWER MAINS

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The unit is operated with the control panel. For detailed information, read the control panel user’s manual.
DISCONNECT THE UNIT FROM POWER MAINS PRIOR TO ANY MAINTENANCE OPERATIONS.
Maintenance operations of the unit are required 3–4 times per year. Maintenance includes
regular cleaning and the following operations:
1. Filter maintenance (3–4 times per year).
Dirty filters increase air resistance in the system and reduce supply air volume. The filters
require cleaning not less than 3–4 times per year. Vacuum cleaning is allowed. Replace the
filters after two consecutive cleanings. Contact the product Seller to purchase new filters.
2. Heat exchanger maintenance (once per year).
Some dust may accumulate on the heat exchanger block even in case of regular
maintenance of the filters. To maintain the high heat exchange efficiency, regular cleaning is
required. To clean the heat exchanger(s) pull it(them) out of the unit and flush it(them) with
warm detergent solution. After cleaning install the dry heat exchanger(s) back to the unit.
3. Fan maintenance (once per year).
Even in case of regular maintenance of the filters, some dust may accumulate inside the fans
and reduce the fan performance and supply air flow.
Clean the fans with a soft brush or cloth. No water and abrasive detergent, sharp objects or solvents are allowed for cleaning to prevent the impeller
damage.
4. Condensate drainage maintenance (once per year).
The drain pipes may get clogged with the extracted particles. Pour some water inside the drain pan to check the pipe for clogging. Clean the U-trap
and the drain pipe if required.
5. Ductwork system maintenance (once in 5 years).
Even if you follow all the listed maintenance guidelines, some dust can accumulate inside the air ducts and reduce the unit performance. Duct
maintenance means regular cleaning or replacement.
6. Control unit maintenance (if necessary).
The control unit maintenance must be performed by an expert qualified for unassisted operations with electrical installations with the voltage up to
1000 V after careful reading of the user’s manual.
Access to the control unit for maintenance operations:
1
2
3
UNIT CONTROL
MAINTENANCE

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KOMFORT EC S/SB(-E) S11
Problem Possible reasons Troubleshooting
The fan(s) do(es) not get started. No power supply to the air handling
unit.
Make sure the power supply line is connected correctly,
otherwise troubleshoot a connection error.
Low air flow.
Contaminated filters, fans or the heat
exchanger.
Clean or replace the filters; clean the fan(s) and the heat
exchanger.
Contaminated or damaged ventilation
system.
Clean the ventilation system components. Replace
damaged components.
Noise, vibration.
Contaminated impeller. Clean the impellers.
Loose screw connection in the fan or
the casing.
Tighten the mounting screws of the fans or the casing
against stop.
Water leakage. Contaminated, damaged or wrong
mounted drainage system.
Clean the drainage system. Check the drain line slope angle.
Make sure that the U-trap is filled with water and the drain
pipes are frost protected.
DI1 or DI3 errors are displayed on
the control panel.
Missing heater during activated heating
mode.
Deactivate the heating mode to troubleshoot the alarm
indicators. If the errors are still displayed on the control panel,
please refer to the product Seller for troubleshooting.
TROUBLESHOOTING
STORAGE AND TRANSPORTATION RULES
• Store the unit in the manufacturer’s original packaging box in a dry closed ventilated premise with temperature range from +5 ˚С (+41 ˚F) to +40 ˚С (+104 ˚F).
• Storage environment must not contain aggressive vapours and chemical mixtures provoking corrosion, insulation, and sealing deformation.
• Use suitable hoist machinery for handling and storage operations to prevent possible damage to the unit.
• Follow the handling requirements applicable for the particular type of cargo.
• The unit can be carried in the original packaging by any mode of transport provided proper protection against precipitation and mechanical damage. The unit
can be transported only in the working position.
• Avoid sharp blows, scratches, or rough handling during loading and unloading.
• Prior to the initial power-up after transportation at low temperatures allow the unit to warm up at room temperature for at least 3-4 hours.

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MANUFACTURER’S WARRANTY
The product is in compliance with EU norms and standards on low voltage guidelines and electromagnetic compatibility. We hereby declare that the product
complies with the provisions of Electromagnetic Council Directive 2014/30/EU, Low Voltage Directive 2014/35/EU and CE-marking Directive 93/68/EEC. This
certicate is issued following test carried out on samples of the product referred to above.
The manufacturer hereby warrants normal operation of the unit for 24 months after the retail sale date provided the user's observance of the transportation, storage,
installation, and operation regulations.
Should any malfunctions occur in the course of the unit operation through the Manufacturer's fault during the guaranteed period of operation, the user is entitled to
get all the faults eliminated by the manufacturer by means of warranty repair at the factory free of charge. The warranty repair includes work specic to elimination
of faults in the unit operation to ensure its intended use by the user within the guaranteed period of operation.
The faults are eliminated by means of replacement or repair of the unit components or a specic part of such unit component.
The warranty repair does not include:
• routine technical maintenance
• unit installation/dismantling
• unit setup
To benet from warranty repair, the user must provide the unit, the user's manual with the purchase date stamp, and the payment paperwork certifying the purchase.
The unit model must comply with the one stated in the user’s manual.
Contact the Seller for warranty service.
The manufacturer’s warranty does not apply to the following cases:
• User’s failure to submit the unit with the entire delivery package as stated in the user’s manual including submission with missing component parts previously
dismounted by the user.
• Mismatch of the unit model and the brand name with the information stated on the unit packaging and in the user's manual.
• User’s failure to ensure timely technical maintenance of the unit.
• External damage to the unit casing (excluding external modications as required for installation) and internal components caused by the user.
• Redesign or engineering changes to the unit.
• Replacement and use of any assemblies, parts and components not approved by the manufacturer.
• Unit misuse.
• Violation of the unit installation regulations by the user.
• Violation of the unit control regulations by the user.
• Unit connection to power mains with a voltage dierent from the one stated in the user's manual.
• Unit breakdown due to voltage surges in power mains.
• Discretionary repair of the unit by the user.
• Unit repair by any persons without the manufacturer’s authorization.
• Expiration of the unit warranty period.
• Violation of the unit transportation regulations by the user.
• Violation of the unit storage regulations by the user.
• Wrongful actions against the unit committed by third parties.
• Unit breakdown due to circumstances of insuperable force (re, ood, earthquake, war, hostilities of any kind, blockades).
• Missing seals if provided by the user’s manual.
• Failure to submit the user’s manual with the unit purchase date stamp.
• Missing payment paperwork certifying the unit purchase.
DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE
ANY MAINTENANCE OPERATIONS!
USER’S WARRANTY CLAIMS SHALL BE SUBJECT TO REVIEW ONLY UPON PRESENTATION OF THE UNIT, THE
PAYMENT DOCUMENT AND THE USER’S MANUAL WITH THE PURCHASE DATE STAMP.

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KOMFORT EC S/SB(-E) S11
CERTIFICATE OF ACCEPTANCE
SELLER INFORMATION
WARRANTY CARD
Unit Type Single-room reversible energy recovery ventilator
Model KOMFORT EC S__________________ S11
Serial Number
Manufacture Date
We hereby declare that the product complies with the protection requirements of Electromagnetic Council Directive 2014/30/EU, Low Voltage Directive
2014/35/EU and CE-marking Directive 93/68/EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility. This
certicate is issued following the test on the samples of the product referred to above.
Quality Inspector’s Stamp
Seller
Installation Company Stamp
The single-room reversible energy regeneration ventilator KOMFORT EC S__________________ S11
has been connected to power mains pursuant to the requirements stated in the present user’s manual.
Company Name
Address
Phone Number
Installation Technician’s Full
Name
Installation Date: Signature
The unit has been installed in accordance with the provisions of all applicable local and national construction, electrical, and
technical codes and standards. The unit operates normally as intended by the manufacturer.
Signature:
Unit Type Single-room reversible energy recovery ventilator
Model KOMFORT EC S__________________ S11
Serial Number
Manufacture Date
Purchase Date
Warranty Period
Seller
Seller
Seller’s Stamp
Address
Phone Number
E-mail
Purchase Date
This is to certify acceptance of the complete unit delivery with the user’s manual. The warranty terms are acknowledged
and accepted.
Customer’s Signature
INSTALLATION CERTIFICATE

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