Dimensions; Used Refrigerant - flowair AURA HCS Series Installation And Operating Instruction

Fans with the highest efficiency with optimized full diffuser and guide blades (meet the requirements of the ErP 2015
directive). Fan grid installed at the air outlet. The fans are fully installed inside the unit housing - flat-top, reducing noise
distribution and increasing condenser efficiency. In a flat installation, the suction point of the fan is closer to the central point
of the condenser.
Fan motor protection class F and internal temperature sensor guarantee reliability at high ambient temperatures. Fixed speed
and optionally variable speed with EC fans or voltage regulator.
Heat recovery
Partial (desuperheater) or complete heat recovery from stainless steel brazed plate heat exchangers located inside the unit
structure. The unit is equipped with an additional water heat exchanger mounted on the compressor discharge line in series
or in parallel with the air condenser. This solution makes it possible to recover up to 25% of energy with a desuperheater or
100% of condensing heat with complete recuperation. The heated water can be used for sanitary or other purposes.
Cooling circuit
Soldering of cooling circuits with a protective atmosphere performed by certified personnel. Before filling with R410A
refrigerant, each cooling circuit of the unit is subjected to a pressure test, a leak test and then evacuated.
Each cooling unit is subjected to a complete functional test to ensure operational quality.
The cooling circuit is equipped as standard with a hermetic or replaceable filter-dehydrator cartridge type, solenoid valve,
thermostatic or optionally electronic expansion valve, sight glass with humidity indicator, low pressure switch, high pressure
switch with manual reset, compressor discharge temperature sensor, high pressure and optionally low pressure sensor,
pressure relief valves according to the requirements of EN 378-2 and suction line insulation.
Depending on the version, the device is further equipped with a suction line temperature sensor, a four-way valve, non-
return valves, a collector and a liquid separator.
Hydraulic circuit
All parts of the hydraulic module are located completely inside the radiator.
Standard components of the chiller hydraulic circuit consist of NTC water inlet and outlet temperature sensors, a differential
water switch, a manometer with shut-off valves to measure the pressure difference on the evaporator.
The cooler can be optionally equipped with a centrifugal pump (static pressure available approx. 200 kPa), reserve centrifugal
pump with operating balance and automatic switching, non-return valves, shut-off ball valves, diaphragm expansion vessel
with maintenance shut-off valve, safety valve, automatic air release valve, filter strainer and drain valve. All pipes and vessels
are thermally insulated with caoutchouc insulation with closed cell structure technology.
Construction
Installing a flat top fan reduces the height of the unit and increases efficiency.
Unit housing made of galvanized sheet steel coated with polyester powder paint RAL 7035. Optional rubber or spring silent
blocks limit the transmission of vibrations to the supporting structure.

Dimensions

The table shows the basic external dimensions of the foundation frames and the total height of the HCS units.
Typoszereg
Model
Wymiary i masa
Długość [mm]
Szerokość [mm]
Wysokość [mm]
Waga [kg]

1.3. Used refrigerant

HCS units are manufactured with R410A or R134A refrigerants.
Properties R410A
HFC refrigerant - classification according to ISO 817 - A1 (non-toxic, non-flammable), GWP (global warming potential) 2 088,
critical pressure 49.2 bar, critical temperature 70.2°C. TO
HCS HCS HCS
113 219 325
1150 1550 2000
1000 1000 1100
1100 1100 1400
283 371 484
FLOWAIR sp. z o.o. / OMSAC210708EN
HCS HCS HCS
332 444 454
2000 2000 2000
1100 1100 1100
1400 1750 1750
508 597 633
HCS HCS
563 575
2200 2200
1100 1100
2180 2180
779 806
5