Air cooled chiller Airwell 307 kW
- Brand: Airwell
- Power: 307 kW
- Year: 2012
| Cooliing capacity | 307 kW |
| Refrigerant circuit | 2 pcs. |
| Type of refrigerant | R410A |
| Compressors | 4 pcs. Danfoss (scroll) |
| Number of fans | 4 pcs. |
| Dimensions | 4,3 х2,3 х 1,1 m. |
| Weight | 2265 kg. |
| Condition | excellent |
General
The new VLS/VLH units have been designed to operate with HFC 410A refrigerant. Both compressors and heat exchangers (plate heat exchanger
and coils) have been optimized for this refrigerant.
They consist of two independent refrigerant circuits, a tandem high efficiency and low vibration level Scroll compressors on each circuit, a “True Dual” two-circuit plate heat exchanger and a ventilating unit comprising V-shape coils and quiet fans; each of them is located in an externally mounted nozzle profile housing generating low sound level.
Cabinet and structure
The unit cabinet and structure are made of heavy gauge galvanized steel coated with polyester powder based painting (RAL 9001). All parts of the structure are fastened totally with non-corrosive screws and bolts.
Compressors
Each unit is equipped with four compressors arranged in two tandems to suit the two refrigerant circuits.
The compressors are of hermetic scroll type and fitted with an electronic control system ensuring protection against high temperature and excessive load.
All compressors have direct-on-line starting and are mounted on rubber vibration isolators in order to minimize noise and vibration transmission.
Evaporator
Evaporator is of a “Dual Circuit” brazed stainless steel plate type heat exchanger. It is insulated with a 19 mm thick closed cell polyethylene foam material and is fitted with a film type electric heater on the external surface to prevent the unit from freezing at a low temperature (down to -18 °C) when the unit is off.
Condenser coils
The condenser coils are made of seamless copper tubes, arranged in staggered rows, mechanically expanded into corrugated aluminum fins.
Condenser fans
For each size, all versions keep the same number of fans.
Large diameter, direct drive axial type fans with asynchronous three-phase
motors are used in all acoustic versions (BLN, LN & ELN) of VLS/VLH 524-
1204 STD units.
