Langmatz EK890 User manual

Operating Instructions
Air circulation
EK890

2
Contents
english
1 General information ......................................................................................................................3
2 Safety information.........................................................................................................................3
3 Product description .......................................................................................................................4
3.1 Dimensions ....................................................................................................................................4
3.2 Technical data................................................................................................................................4
3.3 Operating voltages.........................................................................................................................5
4 Required tools................................................................................................................................5
5 Changing the fan unit ....................................................................................................................6
6 Commissioning...............................................................................................................................6
7 Function test..................................................................................................................................8
8 Fan supply outlets..........................................................................................................................9
9 Maintenance................................................................................................................................10
10 EU Declaration of Conformity......................................................................................................10
11 Material defects...........................................................................................................................11
Quality management .............................................................................................................................11
12 Contact.........................................................................................................................................11

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1General information
These instructions are supplied with the equipment.
Note!
Any person involved in assembly, operation, maintenance and repair of the
product must first read, understand and follow these instructions. We accept
no liability for damage and operating malfunctions caused by failure to
comply with these instructions.
In the interest of further development, we reserve the right to change individual assemblies
and accessories as considered necessary for further safety and performance
improvements, while preserving the main features.
The copyright to these instructions remains with Langmatz GmbH.
2Safety information
The product corresponds to the latest state-of-the-art technology at the time of printing and
is delivered in an operationally safe condition.
Unauthorised modifications, particularly to safety-related parts, are prohibited.
The operator is responsible for installing, operating and maintaining the fixtures.
The operator has to take care of that:
•Preventing danger to life and limb of users and third parties.
•Ensuring safe operation.
•Precluding downtime and environmental impact due to incorrect handling.
•Ensuring that protective clothing is worn when working with or on the product.
Do not use the product if it is damaged. Please contact the hotline.
Note:
Applicable occupational-safety and environmental-protection regulations must
be observed during installation, operation and maintenance or repair.

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3Product description
3.1 Dimensions
Fig. 1
Fig. 2
3.2 Technical data
Housing material
Stainless steel
Protection class
I
Degree of protection
IP47
Power consumption
Typically 36 W | maximum 54 W
Ambient temperature
-25°C to +38°C
Weight
Approx. 8 kg
Connection cable
3x 1.5 mm²
Adjustable / switching point
-15 ° - +45 °
510 mm
480 mm
150 mm

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Hysteresis / threshold value
0.5 –5 degrees
Design verification
As per DIN 61439-1
Control power of heat extraction
Max. 180 watts
Power supply unit
Power 60 watts / 24 VDC
Per fan
24 VDC / 12 watts
Air flow per fan
285 m³ / h
Noise level
55 dB per fan
Fan speed
5000 rpm
3.3 Operating voltages
Designation
Core
Minimum
Maximum
Unit
Permanent operating voltage
1/2
230 V / AC
volts
Fan assembly input power
Max. 54
watts
4Required tools
Fig. 3
Small cross-head screwdriver
Large cross-head screwdriver

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5Changing the fan unit
•Loosen 4 x cross-head screws (1).
Note: disconnect the unit from the mains voltage
before removing it!
Fig. 4
6Commissioning
Fig. 5
•Power the cold-device plug input with
230 VAC operating voltage.
1
1

7
Fig. 6
•Actuate the residual current device (1).
Fig. 7
•Green LED from the control element and blue
LED from the power supply unit light up (red
LED does not).
Fig. 8
•Place the temperature sensor (1) in the
device at the hottest point.
1
1
1

8
Fig. 9
•Set the desired temperature for the starting
point of ventilation and hysteresis (2) on the
control element (1) with a small cross-head
screwdriver.
7Function test
Fig. 10
•Higher temperature at the installation site
than setting on the control element.
→Fans start / Red LED lights up
•Lower temperature at the installation site
than setting on the control element.
→Fans stop / Red LED goes out
(e.g. outdoor temperature 20 °, setting on
the control element 15 °. Fans run until the
control temperature of 15 ° is reached)
Note:
Selector switch must be set to COOL and RUN, otherwise the switch-on point (heating or
cooling) is inverted!
Note:
Fitting air filters in the inlet of the fans reduces the control performance of the assembly.
1
2

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8Fan supply outlets
Fig. 11
•Service socket (1) outlet side / fused via
RCD/circuit breaker.
Fig. 12
•Cold-device socket (1) outlet side / fused via
RCD/circuit breaker.
1
1

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9Maintenance
10 EU Declaration of Conformity
The product meets the requirements of the following applicable
harmonisation directives:
2014/35/EU Low Voltage Directive (LVD)
The following standards were complied with:
DIN EN 61439-1:2012-06
DIN EN 61439-2:2012-06
The EU Declaration of Conformity for this product can be requested from Langmatz GmbH.
Measures
Intervals
Remarks
External visual
inspection
At least every 12 months or
during maintenance measures on
the complete installation.
Check the device for external dirt and
damage.
Note: do not use abrasive cleaning
agents or solvents to clean the
housing.
Carry out a complete
function test
(see Chapter 7)
In the event of a defect, send the
device with a description of the fault
to
Langmatz GmbH.