A-COLD
High efficiency industrial propane chillers
Why choose the Dethermina chiller?
Making cooling more efficient and sustainable is one of the crucial challenges of the energy transition. In a warming world, we need technologies capable of guaranteeing environmental comfort without compromise, minimizing the impact on climate, resources and people.
A-COLD was created to respond to this need.
The range of modular chillers, based on the proven A-THERM80 technology, uses R290 natural gas and offers high-performance, efficient and environmentally friendly air cooling. A strategic ally for decarbonization, designed to guarantee well-being and comfort even on the hottest days, minimizing emissions.
11 sizes, made on 6 different frames with single or double refrigeration circuit
The A-COLD range is a family of modular chillers, from 30kW to 300kW, with high-efficiency R290 natural gas for air cooling.
A-COLD 30.1
A-COLD 50.1
A-COLD 70.1
A-COLD 90.1
A-COLD 110.1
A-COLD 130.1
A-COLD 150.1
A-COLD 190.2
A-COLD 220.2
A-COLD 260.2
A-COLD 300.2
A-COLD
Cooling with refrigeration unit with R290
01. Sustainable
The working fluid is R290, a non-toxic flammable hydrocarbon (ASHREE class A3), which enables for high performance, guaranteeing high efficiency values but with a very low environmental impact; in fact, it has a GWP (Global Warming Potential) value of 3 and a zero ODP (Ozone Depletion Potential) value.
02. Efficient
High efficiency compressor, designed to work with R290 with LSPM engine.
Axial fan with permanent magnet motor.
Generously sized finned coil. Integrated heat recovery.
Thanks to the variable mapping of the control, the operation of the unit adapts to the needs of the user (ECO or BOOST mode).
03. Reliable
The modular logic guarantees high reliability of the entire system, thanks to the possibility of excluding one or more units, both for ordinary/extraordinary maintenance interventions and for any other customer needs, without interruptions in the functioning of the entire system.
The structure is made of galvanized steel, painted with RAL 7035 polyester powder and assembled with structural steel rivets, and is shaped in such a way as to allow easy access to the technical compartment. The panels, equipped with ¼ turn locks, are easily removable for quick access to the technical compartment to allow maintenance operations. To facilitate disassembly of the compressor, the refrigeration circuit is equipped with appropriate flanges.
04. Flexible
The system, made up of modular units, allows for high installation flexibility: the units can be placed side by side or arranged according to the available spaces.
Incremental logic: the modular configuration guarantees the possibility of adding units at any time to increase the overall power of the system in case of future expansion needs.
By appropriately configuring the hydraulic circuit (Customer side), the modular logic allows the contemporary needs to be divided into heating, cooling and domestic hot water on the system modules and greater precision in the delivery of power to partial loads.
05. Silent
The axial fan is directly coupled to the permanent magnet EC electric motor with IP54 protection degree according to IEC 60529.
Equipped with an integrated electronic controller to modulate the speed, it guarantees maximum levels of energy efficiency and low noise.
To isolate vibrations, each compressor is installed on rubber shock absorbers and is equipped with anti-vibration pipes.
06. Easy
The system units are connected via LAN, with the possibility of remote control, via touch-screen display and connection to external BMS management systems.
07. Compatible
Thanks to the use of specific components (HT compressor, copper pipes and fittings with increased thickness, electronic expansion valves operating with high pressure jumps) the unit can produce hot water up to a maximum temperature of 80°C. This feature enables traditional heat generators to be replaced with heat pump technology without replacing the system terminals.
The reduced refrigerant charge allows the unit to be installed regardless of the needs and extension of the system, respecting the EN378 standard (which provides charge limits based on the classification of access to air-conditioned rooms).
08. Uncomparable
A-COLD guarantees stable performance and reliable cooling even in high load conditions and extreme ambient temperatures, above 35°C.
The technology derived from A-THERM80 ensures high seasonal efficiency, rapid thermodynamic response and intelligent management of the refrigeration circuits, to offer maximum comfort with minimum consumption.
Safety first
ATEX CERTIFIED COMPRESSOR
The compressor contained in the technical compartment is certified according to the ATEX 94/9/EC directive.
INSULATED TECHNICAL COMPARTMENT
The technical compartment which contains the compressor and all the components of the refrigeration circuit, with the exception of the finned coils, is hermetically insulated.
K65 TUBES
The cooling circuit is made of K65 copper alloy pipes suitable to withstand high operating temperatures and pressures (40 bar), to guarantee the production of high enthalpy hot water (80°C). All components of the refrigeration circuit comply with the CEI EN60335-2-40 standard (clauses 22.116 and 22.117).
ATEX SENSOR
Inside the technical compartment there is an ATEX sensor which, in the event of any refrigerant leaks, activates the safety systems (with independent power supply) when the threshold of 10% of the LFL (Low Flamable Level) is exceeded.
ATEX FAN
An ATEX fan guarantees emergency ventilation inside the technical compartment in the event of a leak of R290 (IP54 – IEC60529) and avoids the accumulation of high concentrations of refrigerant.
ATEX PRESSURE SWITCHES
Each circuit is equipped with a 4-way cycle reversal valve, ATEX pressure transducers, ATEX high and low pressure switches, filter drier, humidity indicator, liquid receiver, liquid separator, electronic expansion valve, solenoid valves with ATEX coil.
ELECTRICAL PANEL IP54 PROTECTION DEGREE
All the electrical controls are housed in the electrical panel, built in compliance with the EN 60204-1 standard
components of the control and protection system. The electrical panel has a watertight structure with IP54 protection rating in accordance with the EN560529 standard and is equipped with ATEX certified cable glands.
Furthermore, all the power and control devices are installed inside the panel, the microprocessor electronic board, the main disconnect switch with door lock, the isolation transformer, the automatic switches, the fuses and contactors, the interface terminals . The electrical panel is not a possible source of ignition as the cable passages from the electrical panel to the compressor compartment pass through a double barrier.
At Dethermina, we want to build a more efficient and cleaner future, together with you
Want to install a high-performance, environmentally friendly cooling system? Discover A-COLD: the new range of chillers with natural refrigerant R290 designed to drive the energy transition.
Our consultants are on hand to answer any questions and walk you through the process of choosing the best solution for your needs.
