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DESIGNATION KEY

Air handling unit

1 pc.

User's manual 

1 pc.

Control panel (only for units with S11 and S14 automation) 

1 pc.

Mounting box for wall flush mounting (only for units with S14 automation) 

1 pc.

Mounting box for wall surface mounting (only for units with S14 automation) 

1 pc.

Fastening kit 

1 pc.

Packing box 

1 pc.

KOMFORT EC D B X

L S14

Control

S11/S14/S21

Service side

L - left service side 
R - right service side 

Rated air flow [m

3

/h]

Additional components

B – bypass

Spigot orientation

D – suspended mounting, horizontal spigot 
orientation

Motor type

EC – electronically commutated

Unit type

www.blaubergventilatoren.de

KoMFort ec dB 160/250/350 

5

PURPOSE

The unit is designed to ensure continuous mechanical air exchange in houses, offices, hotels, cafes, conference halls, and other utility 
and public spaces as well as to recover the heat energy contained in the air extracted from the premises to warm up the filtered stream 
of intake air.
The unit is not intended for organizing ventilation in swimming pools, saunas, greenhouses, summer gardens, and other spaces with 
high humidity.
Due to the ability to save heating energy by means of energy recovery, the unit is an important element of energy-efficient premises. 
The unit is a component part and is not designed for stand-alone operation. 
It is rated for continuous operation.
Transported air must not contain any flammable or explosive mixtures, evaporation of chemicals, sticky substances, fibrous materials, 
coarse dust, soot and oil particles or environments favourable for the formation of hazardous substances (toxic substances, dust, 
pathogenic germs). 

THE UNIT SHOULD NOT BE OPERATED BY CHILDREN OR PERSONS WITH REDUCED 

PHYSICAL, MENTAL, OR SENSORY CAPACITIES, OR THOSE WITHOUT 

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.

DELIVERY SET

Summary of Contents for KOMFORT EC DB 160

Page 1: ...Heat recovery air handling unit KOMFORT EC DB 160 KOMFORT EC DB 250 KOMFORT EC DB 350 USER S MANUAL EN ...

Page 2: ...on of the KOMFORT EC DB 160 250 350 unit and all its modifications Technical and maintenance staff must have theoretical and practical training in the field of ventilation systems and should be able to work in accordance with workplace safety rules as well as construction norms and standards applicable in the territory of the country The information in this user s manual is correct at the time of ...

Page 3: ... 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 www blaubergventilatoren de KOMFORT EC DB 160 250 350 3 SAFETY REQUIREMENTS Please read the user s manual carefully prior to installing and operating the unit All user s manual requirements as well as the provisions of al...

Page 4: ... 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 www blaubergventilatoren de KOMFORT EC DB...

Page 5: ...emises to warm up the filtered stream of intake air The unit is not intended for organizing ventilation in swimming pools saunas greenhouses summer gardens and other spaces with high humidity Due to the ability to save heating energy by means of energy recovery the unit is an important element of energy efficient premises The unit is a component part and is not designed for stand alone operation I...

Page 6: ...p to 91 Heat exchanger type counter flow SEC class A A A The unit is designed for indoor application with the ambient temperature ranging from 1 C up to 40 C and relative humidity up to 80 In order to prevent condensation on the internal walls of the units it is necessary that the surface temperature of the casing is 2 3 C higher than the dew point temperature of the transported air The unit is ra...

Page 7: ...iew indoor connection L4 L2 L1 L6 L3 Model Dimensions mm ØD A A1 A2 B B1 B2 B3 H H1 L L1 L2 L3 L4 L5 L6 KOMFORT EC DB 160 125 1008 1105 1073 754 822 480 410 320 361 386 293 245 31 128 123 216 KOMFORT EC DB 250 125 1008 1105 1073 754 822 480 410 320 361 386 293 245 31 128 123 216 KOMFORT EC DB 350 160 1138 1235 1203 1044 1112 680 610 320 361 555 417 345 40 119 144 282 www blaubergventilatoren de KO...

Page 8: ... sensor The FS2 humidity sensor is connected to the controller in KOMFORT EC DB 160 250 350 S21 models and to the terminal block in KOMFORT EC DB 160 250 350 S14 models The HR S humidity sensor is connected to the controller The unit with the installed humidity sensor maintains a set indoor humidity point As the extract air humidity rises above the set point the system automatically switches to th...

Page 9: ... 250 350 S14 KOMFORT EC DB 160 250 350 S21 RIGHT HANDED AND LEFT HANDED MODIFICATIONS The figure below shows the arrangement of spigots for left and right handed modifications Choosing the right arrangement can improve the ease of installation shorten the length of the ducts and reduce the number of air duct bends EXTRACT AIR EXTRACT AIR LEFT HANDED MODIFICATION RIGHT HANDED MODIFICATION SUPPLY AI...

Page 10: ...heating and when exhaust temperature downstream of the heat exchanger is lower than 3 C for the units without preheating To protect the heat exchanger from freezing in the cold season the unit has a Frost Protection mode based on the temperature sensor readings The sensor is installed in the exhaust air duct downstream of the heat exchanger The Frost Protection mode is activated at an exhaust air ...

Page 11: ...per is opened the intake air that is supplied to the premises bypasses the heat exchanger The intake air temperature remains constant EXTRACT AIR SUPPLY AIR INTAKE AIR EXHAUST AIR www blaubergventilatoren de KOMFORT EC DB 160 250 350 11 ...

Page 12: ...ount from the side of the extract air duct and connect the humidity sensor connector to the respective contact socket coming from the control unit FS1 sensor FS2 sensor Install the service panel back to the unit www blaubergventilatoren de KOMFORT EC DB 160 250 350 12 READ THE USER S MANUAL BEFORE INSTALLING THE UNIT ...

Page 13: ...more than 12 5 mm While installing the unit ensure convenient access for subsequent maintenance and repair Fasteners for ceiling mounting are not included in the delivery set and should be ordered separately While choosing fasteners consider the material of the mounting surface as well as the weigh of the unit refer to the Technical data section Fasteners for unit installation should be selected b...

Page 14: ...system is designed for normal operation in premises with air temperatures above 0 C If the expected ambient air temperatures are below 0 C the condensate drainage system must be equipped with heat insulation and pre heating facilities www blaubergventilatoren de KOMFORT EC DB 160 250 350 14 ...

Page 15: ...atic circuit breaker is not included in the delivery set and can be ordered separately To access the control unit remove the service panel External wiring diagram for KOMFORT EC DB 160 250 350 S11 units ССU no contact Power input 230 VAC Х1 1 L 2 N 3 PE 4 L 5 N 6 c 7 no 8 c 9 no 10 12V 11 GND 12 B 13 A 14 5V 15 GND 16 Vo SM1 1 2 N L SM2 1 2 N L PK1 2 1 P1 Gnd A B 12V t C TE1 Gnd Vo 5V White Green ...

Page 16: ...ND X1 L L PE N NO NO A B N NC C NO NO C C NO C NO C 24V 24V L N 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 0 10V GND А В 24V 1 2 PK1 1 2 1 2 P1 1 2 1 2 1 2 CCU Boost 1 2 SM1 1 2 SM2 U U CO2 GND 0 10V 24V Brown Yellow Green White Power input 230 VAC Designation Name Contact type Wire Note SM1 Supply air damper actuator NO 2 x 0 75 mm2 3 A 30 V DC 250 AC SM2 Exhaust air damper actuator...

Page 17: ...he reverse order 2 Heat exchanger maintenance once per year Some dust may accumulate on the heat exchanger even in case of regular maintenance of the filters To maintain the high heat recovery efficiency regular cleaning is required The heat exchanger is connected with the drain pan by the fixing bands that should be removed only in case of heat exchanger replacement The drain pan is fixed to the ...

Page 18: ...ositioned inside the unit casing For accessing the control unit remove the fixing screws on the service panel and remove it CAUTION The control unit maintenance must be performed by an expert qualified for unassisted operations with electrical installations with the voltage up to 1000V after careful reading of the user s manual TROUBLESHOOTING Problem Possible reasons Troubleshooting The fan s do ...

Page 19: ...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 must be transported only in the working position Avoid sharp blows s...

Page 20: ...llation dismantling unit setup To benefit 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 w...

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Page 23: ... 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 The KOMFORT EC DB_______S___ unit is installed pursuant to the requirements stated in the present user s manual Installation Stamp Company name Address Phone Number Installation Technician s Full Name Instal...

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