KBAD

KBAE... / KBAD... - Kitchen exhaust units Exhaust fans for higher operating temperatures


·    high efficiency as a result of optimized casing-impeller-combination
·    access door is on the right hand side, changing to left side is possible
·    Swing out fan unit for easy access to inspect, maintain or clean
·    Motor protection by thermal contacts

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Description:

Rosenberg  kitchen exhaust units  were  developed to move smaller to middle air volumes and to be suitable for installation where the air is slightly soiled, greasy or the air temperature is up to 100°C. Typical installations are for example commercial kitchens, and other commercial and industrial applications where  high  requirements  under  difficult  conditions need to be met.


Application areas:
Garage / Bars / Hotels / Industrial buildings / Playschool / Parking facilities / Warehouses / Nursing homes / Schools / Kitchens  /   Workshops  /  Restaurants  /  Residential houses  /  Fitness centers / Inflatables  / Retail stores / Super markets / Bakeries

Reference to Directives:
 Declaration of incorporation and operating instruction are according to Machinery Directive 2006/42/EC, CE identification in  accordance to EMC-Directive 2014/30/EU, Low Voltage Directive 2014/35/EU and the Ecodesign-Directive 2009/125/EC.
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Casing:

The casing consists of a double skinned galvanized sheet steel with a non-flammable rock wool acoustic and moisture insulation.

Access door step:
The door is on the right hand side, changing to left side is possible.

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Impellers:

The impellers together with the hubs are balanced dynamically at two levels according to quality level G2.5 to DIN 1940.

up to size 280:
Forward curved impellers made of galvanized steel

from size 315:
Backward curved impellers made of aluminium

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Motor and motor protection:

All Rosenberg fans are  equipped with  direct driven  external rotor motors.  All our fans have motor protection  through thermal contacts in the motor windings as standard. The motors apply to protection class IP44/IP54.

The drive has due to an external rotor motor a space saving, compact and attractive design. The motor is fitted within the impeller, which enables the best possible cooling. For this reason  a  100%  variable speed control can be guaranteed. V-belts, additional tension bars and motor mounting devices are  not necessary.  Only well-dimensions ball-bearings,  fitted on both sides and  life  time  greased are  used.
Both ball-bearing seats are  ground to high  precision in one work process to eliminate  any  vibrations.
External rotor motors have extremely low starting currents.  The windings  comply to  isolation class F.
In addition the windings have a standard moisture impregnation.

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Electrical connection:

The nominal voltage is indicated on the type shield and will allow for a voltage tolerance of +/- 10%

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Installation:

Direction of rotation:
As viewed from the inlet side, the standard direction of rotation of the impellers is counter-clockwise.

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Air volume control:
For more information see accessories!

5-speed control unit:     
230V à   RTE  / RTE…G
400V à   RTD / RTD…G

Infinitely variable control unit:
230V à  not possible
400V à  Frequency converter / WARNING: up to max. 50Hz
    
2-speed control unit:     
400V à   MSD 2

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Scope of delivery:

·   Duct fan (KBAE / KBAD)
·   Terminal box (loose)
·   Documentation

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Important notes:

Air performance curves:
The performance curves for these fan types have been measured in mounting position D (installed on the pressure side and open on the suction side)  and  show  the  total  pressure  increase ∆pt as a function of the air flow.  The  dynamic pressure ∆pd2 refers to the flange cross section at the outlet side of the fan.  

Noise levels:
The figures in the air performance curves quoted in circles are the "A" decibel figures which are the sound power levels LWA6,  at the outlet side in duct systems.  The "A" sound  pressure  level  LPA  at  a  distance  of  1 metre is obtained approximately by deducting 7 dB(A) from the "A" sound power level. It is important to note that the reflection and room characteristic  as well  as natural frequencies differently influence the sound pressure levels. The relative octave sound power level LWArel at octave medium frequency are shown on each fan type data table.  

Classification of the fan series:
NRVU    = Non Residential Ventilation Units
UVU    = Unidirectional Ventilation Units

Erp-Information:
Rosenberg fans have a spezfic (pressure-) ratio < 1,05 (pressure < 5000 Pa).

Service life:
For maximum service life of Rosenberg products please beware of the maintenance hints on the manual for each
product type.

Recycling and disposal:
For recycling and disposal of Rosenberg products comply with applicable locally requirements and regulations.

Kitchen exhaust units with external rotor motor for higher operating temperatures

The casing consists of a double skinned galvanited sheet steel with a 50mm non flammable rock wool acoustic and moisture insulation.
Mounted foot are included. Swing out fan unit for easy access to inspect, maintain or clean. The door is on the right hand side, changing to left side is possible. The kitchen exhaust unit single inlet and forward curved impellers made of galvanized sheet steel. The centrifugal impellers together with the hubs are balanced dynamically at two levels according to quality level G2.5 to DIN 1940. The motor protection by termal contacts.

Reference to Directives:
Declaration of incorporation and operating instruction are according to Machinery Directive 2006/42/EC, CE identification in accordance to EMC-Directive 2014/30/EU, Low Voltage Directive 2014/35/EU and the Ecodesign-Directive 2009/125/EC.

For further information, please click the model below for detail.

Picture of Kitchen exhaust fans from KBAD180-4ST.082 to KBAD400-4SW.123

Picture of Kitchen exhaust fans KBAD450-4SW.138 and KBAD500-4SW.138