BLAUBERG Centro EC User manual

CENTRIFUGAL FAN
USER'S MANUAL
EN
Centro EC

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CONTENTS
Safety requirements..................................................................................................................................................................... 3
Purpose................................................................................................................................................................................................ 5
Delivery set........................................................................................................................................................................................ 5
Designation key.............................................................................................................................................................................. 5
Technical data.................................................................................................................................................................................. 6
Design and operating principle ........................................................................................................................................... 6
Mounting and set-up.................................................................................................................................................................. 8
Connection to power mains .................................................................................................................................................. 9
Technical maintenance.............................................................................................................................................................. 10
Storage and transportation regulations.......................................................................................................................... 10
Manufacturer’s warranty........................................................................................................................................................... 11
Certificate of acceptance ........................................................................................................................................................ 12
Seller information.......................................................................................................................................................................... 12
Installation certificate.................................................................................................................................................................. 12
Warranty card ................................................................................................................................................................................. 12
This user’s manual is a main operating document intended for technical, maintenance, and operating staff.
The manual contains information about purpose, technical details, operating principle, design, and installation of the Centro EC 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 the document’s preparation.
The Company reserves the right to modify the technical characteristics, design, or configuration of its products at any time in order to
incorporate the latest technological developments.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means in any information
search system or translated into any language in any form without the prior written permission of the Company.

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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 all the applicable local and national
construction, electrical, and technical norms and standards must be observed when installing
and operating the unit.
• 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.
UNIT INSTALLATION AND OPERATION SAFETY PRECAUTIONS
• Disconnect the unit from
power mains prior to any
installation operations.
• Unpack the unit with care.
• The unit must be grounded!
• While installing the unit, follow
the safety regulations specific
to the use of electric tools.
• Do not change the power
cable length at your own
discretion.
• Do not bend the power cable.
• Avoid damaging the power
cable.
• Do not put any foreign objects
on the power cable.
• Do not lay the power cable of
the unit in close proximity to
heating equipment.
• 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.

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THE PRODUCT MUST BE DISPOSED SEPARATELY AT THE END OF ITS SERVICE LIFE.
DO NOT DISPOSE THE UNIT AS UNSORTED DOMESTIC WASTE.
• 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.
TO AVOID A RANDOM RESTART OF THE THERMAL SWITCH, THE UNIT MUST NOT BE
POWERED THROUGH AN EXTERNAL SWITCHING DEVICE, SUCH AS
A TIMER, OR CONNECTED TO POWER MAINS USUALLY TURNED ON/OFF BY PUBLIC
SERVICES.

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DELIVERY SET
DESIGNATION KEY
PURPOSE
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.
The product described herein is a centrifugal inline fan for supply or exhaust ventilation of premises.
The fan is designed for connection to ø 100, 125, 150, 200, 250 and 315 mm air ducts.
A model with a duct diameter of 150 mm can be mounted in a duct with a diameter of 150 or 160 mm.
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).
Name Number
Fan 1 pc.
Screws and dowels 4 pcs.
Mounting bracket 2 pcs.
User’s manual 1 pc.
Packing box 1 pc.
Centro EC 100 X
Additional options
FR1: integrated smooth speed controller
G1: speed controller with an electronic thermostat and an external temperature sensor fixed
on a 4-meter cable. Power cable with mains plug. Temperature-based operation logic
GT1: speed controller with an electronic thermostat and an external temperature sensor fixed
on a 4-meter cable. Power cable with mains plug. Timer-based operation logic
GI1: speed controller with an electronic thermostat and an integrated temperature sensor.
Power cable with mains plug. Temperature-based operation logic
GTI1: speed controller with an electronic thermostat and an integrated temperature sensor.
Power cable with mains plug. Timer-based operation logic
GS1: speed controller with an electronic thermostat and an external temperature sensor fixed
on a 4-meter cable. Power cable with mains plug. Temperature-based switching on/off
GSI1: peed controller with an electronic thermostat and an integrated temperature sensor
fixed on a 4-meter cable. Power cable with mains plug. Temperature-based switching on/off
Air duct diameter [mm]
100; 125; 150; 200; 250; 315
Motor type
EC:synchronous electronically commutated motor
Unit series
Centrifugal fan

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DESIGN AND OPERATING PRINCIPLE
The fan is equipped with a single-phase electronically commutated (EC) motor with an external rotor equipped with a centrifugal
impeller.
The fan is rated for continuous operation.
1
2
3
4
5
1. Casing
2. Motor
3. Impeller
4. Mounting bracket
5. Terminal box
TECHNICAL DATA
The fan is designed for indoor application with the ambient temperature ranging from +1 °C up to +45 °C and relative humidity up to
80 %. Ingress protection rating against access to hazardous parts and water ingress is IPX4.
The ventilator is rated as a class II electric appliance. The heater must be grounded.
The unit design is constantly being improved, thus some models may be slightly different from those described in this manual.
Parameter Centro EC 100 Centro EC 125 Centro EC 150 Centro EC 200 Centro EC 250 Centro EC 315
Unit voltage [V/50 (60) Hz] 1~ 230 1~ 230 1~ 230 1~ 230 1~ 230 1~ 230
Power [W] 82 84 82 84 165 165
Current [A] 0.62 0.64 0.63 0.64 1.10 1.15
Maximum air flow [m3/h] 340 420 630 885 1250 1500
RPM [min-1] 3400 3600 3400 2700 2600 2500
Maximum transported air temperature [°C] -25 +60
Ingress protection rating IPХ4
Overall dimensions of the unit [mm]
H
Model
Dimensions [mm] Weight
[kg]
D H B L
Centro EC 100 100 250 270 230 2.0
Centro EC 125 125 250 270 220 2.2
Centro EC 150 150/160 300 310 286 2.5
Centro EC 200 200 340 354 276 3.0
Centro EC 250 250 340 354 265 4.3
Centro EC 315 315 400 414 276 4.9

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Temperature sensor failure
Alarm code Alarm description
Two short pulses Short circuit of the temperature sensor
One pulse Breakdown of the temperature sensor
The motor shuts down
Electronics operation algorithm
The Centro EC ... G1(GT1/GI1/GTI1/GS1/GSI1) fan is equipped with an electronic module TSC (speed controller with an electronic
thermostat) for automatic speed control (air flow) depending on the air temperature.
The terminal compartment incorporates 2 control knobs:
• presetting speed
• setting electric thermostat threshold value
The fan is equipped with two indicators:
• temperature sensor indicator (hereinafter referred to as TSI) - yellow colour
• motor control indicator (hereinafter referred to as MCI) - green/yellow colour
When the fan turns on, the TSI indicates the unit operation algorithm:
• one pulse - G1(GI1);
• two pulses - GT1(GTI1);
• three pulses - GS1(GSI1).
The MCI lights up in green when the motor rotates and in red when it stops (or rotates
very slowly).To set the thermostat threshold, rotate the thermostat control knob
clockwise to increase or counter-clockwise to decrease the temperature set point. To set the fan speed (air flow), rotate the speed
control knob in the same way.
Centro EC ... G1(GI1): In this case, fan speed switching operations are rare.
The TSI lights up and the fan switches to the maximum speed as the room air temperature exceeds the set point.
As the air temperature drops 2 °C below the set point or if the initial temperature is below the set point, the TSI goes out and the fan
operates with the set speed.
Centro EC ... GT1(GTI1): The speed switching operations are more frequent as compared to the temperature-based functioning logic
G1(GI1), but one speed interval continues at least 5 minutes.
The TSI lights up and the fan switches to the maximum speed as the room air temperature exceeds the set point.
As the air temperature drops down below the set point, the TSI starts blinking, the timer starts a 5-minute countdown and then the fan
switches to the set lower speed and the TSI goes out.
Centro EC ... GS1(GSI1): The fan starts only at a certain air temperature.
The TSI lights up and the fan switches to the set speed as the room air temperature exceeds the set point.
As the air temperature drops 2 °C below the set point or if the initial temperature is
below the set point, the TSI goes out and the fan turns off.
The Centro EC ... FR1 fan is equipped with a built-in smooth speed controller that
enables switching the fan on/off, smoothly adjusting the rotation speed (air flow) in
the range from minimum to maximum speed.
min max
~
~
~
Air flow regulator
min max
21
22
23
24
25 26
27
28
29
30°C20°C
Temperature regulator
Air flow regulator

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1 2
34
5
Mounting sequence:
1. Remove the bolts on both sides of the casing, install the mounting brackets and tighten the bolts, aligning the holes in the brackets
with the holes in the casing.
2. Mark the drilling holes.
3. Drill the holes in the wall or the ceiling for dowels.
4. Fix the fan with the screws.
5. Connect the air ducts of the corresponding diameter to the fan.
MOUNTING AND SETUP
The fan is suitable both for horizontal or vertical mounting on the floor, on the wall or on the ceiling.
Air motion in the system must be in compliance with the direction of the arrow on the fan casing.
Install a hood on the intake spigot side in case of vertical fan installation.
When installing the fan horizontally, provide a straight air duct section at least 1 m long on the intake spigot side.
9
1 m
READ THE USER'S MANUAL BEFORE INSTALLING THE UNIT.

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CONNECTION TO POWER MAINS
POWER OFF THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
THE UNIT MUST BE CONNECTED TO POWER SUPPLY BY A QUALIFIED ELECTRICIAN.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE
MANUFACTURER’S LABEL.
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED
AND WILL VOID THE WARRANTY.
• The unit is rated for connection to 230 V 50/60 Hz power mains.
• The unit must be connected to power mains using insulated electric conductors (cables, wires). The actual wire cross section selection
must be based on the maximum load current, maximum conductor temperature depending on the wire type, insulation, length and
installation method.
• The external power input must be equipped with an automatic circuit breaker built into the stationary wiring to open the electric
circuit in case of overload or short-circuit. The circuit breaker installation place must provide quick access for emergency shutdown
of the unit. The trip current of the automatic circuit breaker QF must exceed the maximum current consumption of the unit (refer
to the technical data table). The recommended trip current of the circuit breaker is the next current in the standard trip current row
following the maximum current of the connected unit. The automatic circuit breaker is not included in the delivery set.
L
N
+10V
0-10V
GND
XQF
P-1/010
L
N
+10V
0-10V
GND
WIRING DIAGRAM

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STORAGE AND TRANSPORTATION REGULATIONS
• Store the unit in the manufacturer’s original packaging box in a dry closed ventilated premise with temperature range
from +5 °C to + 40 °C and relative humidity up to 70 %.
• Storage environment must not contain aggressive vapors 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 must 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 operating temperature for at least
3-4 hours.
DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE
ANY MAINTENANCE OPERATIONS!
TECHNICAL MAINTENANCE
Clean the product surfaces regularly (once in 6 months) from dust and dirt. To clean the fan, remove the self-tapping screws and
remove the fan cover. To clean the fan, use a soft cloth or a brush wetted in a mild detergent solution.
Do not allow water or liquid come into contact with electric components. Wipe the unit surfaces dry after cleaning.
Install the cover back in place and screw the self-tapping screws.
15
15
WARNING! If the power cord is damaged, it must be replaced by the manufacturer, customer service, or similar qualied
personnel in order to avoid danger.