AQWL/AQWH/AQWR 1404 to 2406
48Pages

AQWL/AQWH/AQWR 1404 to 2406 Air Cooled Water Chillers Cooling Only, Heat Pump and Total Heat Recovery Engineering Data Manual

Features & Strength Points  A more "slim and light" structure, while keeping the features of sturdiness (successfully performed at CESI laboratory, vibration tests in accordance with ASTM standards).  Rivets as joints of the structural elements.  Optimization of overall dimensions for container transport.  Symmetric refrigerant circuit configuration to reduce the length of pipes and consequently the pressure drop in the circuit.  Standard coils in Al/Cu, arranged in V configurations to get a better air distribution and then optimize its performance.  Increasing the fin spacing to...

Specifications (continued) Cabinet and structure The unit cabinet and structure are made of heavy gauge galvanized steel. All the galvanized steel components are individually painted, with a polyester powder based painting (RAL 9001), under a special painting process before the assembly of the unit. This painting system performs and stands a homogeneous protection of the corrosion. All parts of the structure are totally fastened with non-corrosive screws and bolts. On high pressure fans of HPF units, the external static pressure (≤ 120 Pa) can be adjusted on site to match the customer...

Specifications (continued) ➜ Remote signalling, by dry contacts : h) Circuit alarm unit ➜ Management of the hydro kit : start-up of pump, antifreeze heater of external tank. ➜ Management of the heat recovery mode by means of inlet water temperature sensor at the heat recovery condenser. The unit controller can also clearly show all control parameters of the machine on the liquid crystal display, such as : ➜ Display of superheating value. ➜ Display of the temperature at the evaporator inlet and outlet. ➜ Display of the ambient air temperature. ➜ Display of the circuit 1 and circuit 2...

Specifications (continued) Optional hydro kits On board hydro kits and remote hydro kits are available. 3 Condenser coils with blue fins treatment. On board hydro kits can be supplied with or without buffer tank, while remote hydro kits are always supplied with internal tank and pump(s). The HPT models can be used as remote hydro kits for field installation. 3 Condenser coils with "Fin Guard Silver" (polyurethane) treatment. The on board hydro kit, located inside the unit, with or without buffer tank, has the following components : 3 High static pressure fans (ESP<120 Pa) for HPF version. ➜...

SAFETY / CONTROL DEVICES Note : For reasons of readability, one circuit only is shown. The second circuit is identical.

Note : For reasons of readability, one circuit only is shown. The second circuit is identical.

Note : For reasons of readability, one circuit only is shown. The second circuit is identical.

Operating Limits - AQWL 1404 to 2406 1404 Water outlet Brine outlet Liquid outlet temperature Chilled Liquid Maximum operating pressure Standard fans High pressure fans External static pressure Recommended system chilled water volume (2) Minimum capacity step Power supply voltage (4) Total unit flow rate and pressure are given for STD units. Caution : Minimum flow rates may only be used with brine solutions after reprogramming the unit parameters. Minimum water/brine volume of system (about 3 litres/kW). Max. ambient air temperature of +48 °C in part loaded conditions. Voltage : 400 V ± 10...

Operating Limits - AQWL 1404 to 2406 (continued) 1404 - 1604 - 1806 - 2106 - 2406 ELN/HSE ELN Leaving water temperature (°C) Leaving water temperature (°C) Leaving water temperature (°C) (1) Water (2) Water and glycol (3) Water and FSC (4) Water, glycol and FSC (5) Reachable only with partialization. Leaving water temperature (°C

Operating Limits - AQWH 1404 to 2406 1404 Maximum operating pressure Water outlet Standard fans High pressure fans External static pressure Recommended system chilled water volume (2) Minimum capacity step Power supply voltage (5) Brine outlet Heat pump Water outlet Liquid outlet temperature Chilled Liquid Total unit flow rate and pressure are given for STD units. Caution : Minimum flow rates may only be used with brine solutions after reprogramming the unit parameters. Minimum water/brine volume of system (about 3 litres/kW). Max. ambient air temperature of +48 °C in part loaded...

Operating Limits - AQWH 1404 to 2406 (continued) Cooling mode 1404 - 1604 - 1806 - 2106 - 2406 ELN/HSE ELN Leaving water temperature (°C) Leaving water temperature (°C) All units 25 20 Ambient temperature (°C) Leaving water temperature (°C) Heating mode Leaving water temperature (°C) Leaving water temperature (°C) (1) Water (2) Water and glycol (3) Water and FSC (4) Water, glycol and FSC (5) Reachable only with partialization.

The minimum system water volume is calculated using the minimum compressor running time (1.5 minute for scroll compressor) and the lower capacity step (only one compressor running among the six compressors installed) : Water volume (litre) Unit total cooling capacity (W) Number of compressor steps Compressor minimum running time (minute) Evaporator temperature difference (°C) With t = 1.5 minute, AT = 5 °C and n = 6, the minimum system water volume is about V = 2.4 litres/kW.

(1) Data based on 7 °C leaving chilled water temperature and 35 °C condenser air temperature. (3) Sound levels are at fully loaded conditions. Sound power level values refer to ISO standard 3744 and Eurovent 8/1. (4) Sound pressure levels refer to ISO standard 3744, parallelepiped shape. (*) High efficiency units (HSE) with inverter fans. (**) HPF units with high static pressure fans.

(1) Data based on 7 °C leaving chilled water temperature and 35 °C condenser air temperature. (3) Sound levels are at fully loaded conditions. Sound power level values refer to ISO standard 3744 and Eurovent 8/1. (4) Sound pressure levels refer to ISO standard 3744, parallelepiped shape. (*) High efficiency units (HSE) with inverter fans.