Climatic unit type 0

Climatic unit Type 0 is a precision air conditioner able to reach and maintain constant thermo-hygrometric conditions inside testing laboratories as requested by ISO 139/187, BS EN 20139/20187, DIN 50015, ERT 60-1, ASTM D1776, M&S PGA, EDANA, BISFA Standards, OIML etc.

Inside testing laboratories with air volume between 20 ÷ 50 m³ the climatic unit is able manage the close-control of following parameters:

• Temperature: (20 ÷ 27) ± 1°C;
• Relative Humidity: (45 ÷ 65) ± 2 %;

TYPE 0 FRAME

The body structure of a climatic unit Type 0 is built in stainless steel material and composed of a cabinet with wide front opening panels with door knobs for an easy inspection of the cooling circuit and of electrical parts during servicing activities.

It includes a recovery basin to collect the condensed water by the cooling heat exchanger.
The water basin hosts humidification elements used to warm up demineralized water to allows humidity close-control (%).

The upper compartments of Type 0 include electrical connections and the user interface HM TFT Touch Screen ^7".

AIR FLOW DISTRIBUTION
An advanced technology for the Climatic Unit Type 0 allows to keep under laminar flow the air distribution in every point of the laboratory; the indoor unit is equipped with a centrifugal blower with automatic rotation speed control in compliance to EU Standards. With the progressive increment of accumulated dust on the air filters, the ultra-silent blower motor changes gradually speed ratio proportionally to the increase of air losses of the aeraulic circuit maintaining always the same air flow.

PRE-FILTRATION AND FINAL FILTRATION
Air suction filters at medium efficiency like G4 on unit suction are provided just before the air return ducts or inside the front panel of the Climatic Element to achieve the lowest level of air pollution inside the unit compartments and inside the laboratory too. The final filters type HEPA characterized by an high filtration efficiency in the air inlet like F6 assure the overall elimination of harmful bacterias for the human breathing apparatus inside the laboratory in accordance to national and international Work Safety Standards.

REFRIGERANT CIRCUIT

Most part of customers need a system that reduces both electrical power consumptions and expenses, but the air handling sysem needs always to guarantee the requested conditioning of ambient conditions according to the Reference Standard.

Branca Idealair studies solutions to achieve maximum performance with reduced energy consumption

Furthermore we create high-performance refrigerant circuits able to ensure desired conditions with low-energy consumption and charging only refrigerants compatible with the international Standards in compliance with protocols of Kyoto and Paris, thus charging only HFO freon gas with LGWP equal to 0.
Close control with electronic modulation valves avoiding any mechanical breakdown and reducing power consumption of 30% less, drier filters on LOW pressure circuit to prevent any possible cause of damage to the compressor, outdoor unit with air condenser fans controlling the stability on HIGH pressure circuit condensation, close-control on low temperature Dew-Point and compressor injection to keep chassis temperature under constant regulation.
Evaporator, composed of copper tubing and copper fins to prevent the redox with different conductors in presence of water greedy of ions.
Bactericidal action of the copper fins preventing bacteria in conditions of saturation.
Space between fins of 3 mm to allow a periodical servicing on the heat exchanger with a high pressure water pump at floor level;

WATER FEEDING SYSTEM
A special water ECO system without any regeneration cycles, but keeping under acceptable limits the water consumption by the Climatic Unit Type 0; moreover the system allows to feed the humidification vessel passing through a sequence of filters and reverse osmosis group; the pressure switches (safeties) cover all the circuit protected from limescale devices to avoid any risks of water flooding.

AIR FLOW DISTRIBUTION
With air speed less than 0,15 m/s to the work desks, tangential to the walls, with hot air recovery device with recirculation air collection from the top between insulated roof ceiling and false ceiling.
False ceiling in aluminium with heat absorbent action able to guarantee the maximum results in terms of uniformity for the samples to the work desks, and simultaneously energy save in compensation to the post-heating heat exchanger.

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