60KW Airsys Optima INV DXW cooling system without dry cooler and pump group for data centre and telecom

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Our advantages

Optima INV DXW 60V2A4 + 2 x AMAE10


The OPTIMA series from Airsys was specially developed for use in
small, medium and large data centers or for process cooling or in
Clean room applications.

OPTIMA devices are designed for continuous operation with maximum reliability and have a high-precision temperature and humidity control.

OPTIMA INV-DXW devices have EC fans and inverters
Compressor technology. A water-cooled circuit and external dry cooler are used to minimize the refrigerant charge for optimized environmental compatibility.

1 Precise regulation

The standard tolerances are: for the temperature ± 1 ° C and ± 5%
for the relative humidity.

7 scroll compressors

The OPTIMA series (DXA & DXW) are scrolled
Equipped with a good compressor
Characteristic efficiency that run with low vibration and
are also relatively quiet.

2 different types of air flow

For the air discharge, the above (O) or below (U)
be determined. In the case of air intake, between O /
U as also selected via the front / back of the device
will. The devices can thus be configured and connected in a variety of ways
adaptable to local needs

8 Separate control cabinet in the device

All electrical ones are in the separate control cabinet
Components wired properly and according to IEC standards
neatly marked and labeled. In him are too
the device control and regulation housed

3 Corrosion Protection

The anti-corrosion coating on the device frame is
designed for a service life of at least 15 years
Use of the device under normal, dry continental climate conditions.
For extremely humid maritime climates, the protective treatment can be reinforced on request.

9 The dehumidification control

The dehumidification process is done by reducing
the surface temperature or by reducing the
Airflow on the evaporator. Systems with variable performance
have properties for current monitoring,
that are displayed locally, but also one
Remote monitoring are available. The energy monitoring
Are available. Energy monitoring can be used
are about efficiency across systems, regions and
Across networks

4 Serviceability

The device-internal air duct is separated from the
Compressor compartment, the control cabinet with the control and
Safety devices. This allows the normal
Device maintenance also carried out while the device is in operation

10 electric steam humidifier (optional)

The steam output and thus also the heating current consumption
are precisely controlled by the microprocessor control.
Monitoring the quality of the feed water and the
Blow-down behavior improves the cylinder life
and thereby reduce the required maintenance intervals.

5 EC fan

Highly efficient EC fans, integrated into the OPTIMA

11 electric heating (optional)

The sophisticated construction of the electric heating register
Stainless steel pipes (with spirally wound fins
to improve heat transfer to the passing
flowing air) enables operation with lower
Surface temperature
=> No unpleasant smells from scorched air particles.

6 air filters

The class G4 air filters are easy to maintain and
have a long service life because they are washable. You are as
Basic equipment installed. A filter monitor can be used as an accessory
to indicate that the filters are dirty.

12 Device self-monitoring

All on the microprocessor of the device control
connected components are constantly monitored.
Detected malfunctions are reported and at
The device is switched off in the event of serious faults.
The detected error is shown in the display




Functional scheme


Direct expansion device, water-cooled (DXW)

The water-cooled DX system (DXW) works similarly to the air-cooled system, but the refrigerant transmits the
heat given off via a plate heat exchanger to water. The heat is transferred via a dry cooler or cooling tower
then released to the outside air.

No additional refrigerant lines are required on site. Piping is only required for the water circuit,
which makes the installation much easier. The internal refrigerant circuit is sealed and pressure tested before delivery,
the device being supplied with a hold charge of nitrogen.


Water-cooled DX unit with indirect free cooling (FC.DXW)

The FC.DXW system combines mechanical DXW cooling with indirect free cooling (FC). The two cooling modes share the same thing
Water system.

If cooling is required and the difference between indoor and ambient temperatures allows, then the FC unit will
operated to provide indirect free cooling by dissipating heat via a dry cooler or cooling tower. Only if the free
If the cooling capacity is not sufficient to cover the cooling requirement, the DXW unit starts mechanical cooling. The FC circuit enables
a significant reduction in compressor operating hours for the DXW system and saves considerable energy.


Water-cooled DX device with 2 cooling sources (DC.DXW)

The DC.DXW unit is a two-circuit system, the mechanical DXW cooling (water-cooled) and cold water cooling (CW)
offers. It contains two independent cold water circuits with different heat dissipation methods for redundancy reasons.



Technical specifications

A selection of our references

Price including assembly:

Optima INV.DXW Brochure (AIRSYS-OPTIMA-INV-DXW-SB-V1.0.pdf, 10,538 Kb) [Download]

Optima INV.DXW Brochure Deutsch (AIRSYS-OPTIMA-INV-DXW-SB-V1.0_German.pdf, 10,544 Kb) [Download]

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