COOLSIDE EVO DX SYSTEM......R410A..... 4,5 ÷ 53,1 kW

MAIN FEATURES
Direct expansion air conditioning system for high density racks and blade servers.
6 models, 2 versions available for a wide selection opportunity.
6 combinations (in-room unit-outdoor unit) available.
EER up to 4,45.
Rotary or Scroll BLDC inverter compressors.
R410A refrigerant charge.
EC Plug-fans.
“F” version, frontal air delivery, “L” version, side air delivery.
Evaporating unit suitable for indoor installation.
Motocondensing unit MCAi, suitable for outdoor installation.
Microchannel condensing coil.

MAIN BENEFITS
High EER.
Suitable for direct cooling system (close loops) or cooling system for rows of racks (hot/cold aisle).
BLDC inverter compressors and plug-fan EC for a higher energy efficiency.
High energy efficiency at partial loads.
Availability of connection on the top or on the bottom of the unit.
Availability of dual power supply.
Availability of box-server rack.
Easily of maintenance.
 
WORKING LIMITS
INDOOR UNIT
Room air temperature:
14°C    minimum temperature with wet bulb
26°C    minimum temperature with wet bulb. 40°C    maximum temperature with dry bulb.

Room air humidity:
20%Rh    minimum relative humidity. 70%Rh    maximum relative humidity.

OUTDOOR UNIT – AIR COOLED MOTOCONDENSING UNIT
Ambient air temperature:
-30°C    minimum temperature 45°C    maximum temperature.
 
COMPONENTS - INDOOR UNIT -  COOLSIDE EVO DX
FRAMEWORK
Framework in galvanized steel sheet externally painted with epoxy powders.
Panels in galvanized steel sheet externally painted with epoxy powders and internally insulated with noise absorption material.
Access doors. The doors are equipped with handle with security lock.
Holders for unit height adjusting.
Colour RAL 7016 (anthracite grey) textured.
Air flow:
Cooling system for rows of racks (in-row) COOLSIDE EVO “F”:
Air intake from the back side through honeycomb type grille and frontal air delivery through honeycomb type grille.
Direct cooling system of racks (in-rack) COOLSIDE EVO “L”:
Air intake from side through honeycomb type grille and air delivery from side through honeycomb type grille.

FILTER SECTION – COOLSIDE EVO “F”
The filter section is not supplied for COOLSIDE EVO “L” unit.
Washable air filters with G2 efficiency, with cells in synthetic fibre, on air suction panel.
Differential pressure switch on the air side for clogged filters signal.

EVAPORATING  SECTION
Heat exchanger coil with internally corrugated copper tubes and high efficiency aluminium fins, specifically developed to provide high heat transfer and lower pressure drops.
Condensate tray in peraluman with connection (external diameter Ø16) for a discharge tube or for a pump for condensate drain (option).

FANS SECTION
Centrifugal fans with backward curved blades, single suction and without scrol housings (Plug-fans), directly coupled to brushless type synchronous EC moto with integrated electronic commutated system and continuous variation of
the rotation speed. The motor rotation control is obtained with the EC system
(Electronic Commutation) that manage the motor according to the 0÷10V proportional signal coming from the microprocessor control.
Fans quick installation system for a fast replacement.
#2 temperature sensors on air delivery.
Temperature sensor on air intake.
Current detector for loss of air flow alarm.

REFRIGERANT CIRCUIT
Electronic expansion valve.
Refrigerant pressure transducer for expansion valve.
Refrigerant temperature sensor for expansion valve.
Filter dryer on liquid line.
Refrigerant circuit with copper tubing with anticondensate insulation.
Rotalock valves on liquid and suction line placed on bottom side of the unit for coupling to remote motocondensing unit.
The COOLSIDE EVO DX 040 (size A6 / B6) is equipped with one Rotalock
valve on liquid line and two Rotalock valves on suction lines. The refrigerant connection foresee a single liquid line and a double suction line to ensure the lubricant oil return to the compressor.
R 410A refrigerant charge.

ELECTRICAL PANEL
Extractable electrical panel, in accordance with EN60204-1 norms, complete with:
Power supply with 10A plugs.
Magnetothermic switch on power supply
Terminals for external enabling, smoke/fire alarm, general alarm and LAN connection.
Power supply: 230/1/50.
 
CONTROL SYSTEM
Microprocessor system with graphic display for control and monitor of operating and alarms status. The system includes:
voltage free contact for remote general alarm.
Main components hour-meter.
Nonvolatile “Flash” memory for data storage.
Menu with protection password.
LAN connection.

COMPONENTS - OUTDOOR UNIT - MCAI MOTOCONDENSING UNIT
FRAMEWORK
Base, self supporting frame and panelling in steel plate with protective surfaces treatment in compliance with UNI ISO 9227/ASTMB117 and ISO 7253, and painted with epoxy powders.
Colour: RAL 9002

COMPRESSOR
Motocondensing unit model MCAI 10:
Twin rotary hermetic compressors “BLDC inverter” type optimized for R410A refrigerant.
Motocondensing unit models MCAI 20 / MCAI 40:
Orbiting spiral (SCROLL) hermetic compressors “BLDC inverter” type with spiral profile optimized for R410A refrigerant.
Common characteristics:
Inverter driven brushless type electric motor.
Modulating capacity control.
Crankcase heater.
Terminal box with IP54 enclosure class.
Rubber supports.

CONDENSING COIL
All-aluminium microchannel heat exchanger coil, specifically developed to provide high heat transfer and lower pressure drops. Moreover microchannel technology reduces the weight of the component and the refrigerant charge.

FANS SECTION
Axial fans with sickle-shaped blades, fan guard and optimized for low noise levels.
Brushless type synchronous EC motor with integrated electronic commutated
system and continuous variation of the rotation speed. The motor rotation control is obtained with the EC system (Electronic Commutation) that manage the motor according to the 0÷10V proportional signal coming from the microprocessor control.
IP54 enclosure class.

REFRIGERANT CIRCUIT
Liquid separator on suction line.
Oil separator on delivery line with oil recovery capillary hose.
Check valve on gas delivery.
Liquid receiver.
Filter dryer on liquid line.
Sight glass.
Pressure transducers with indication, control and protection functions, on low and high refrigerant pressure.
High pressure safety switch with manual reset.
Refrigerant circuit with copper tubing with anticondensate insulation of the suction line.
Rotalock valves for coupling to indoor units:
MCAI 10: Rotalock valves for connection to 1 indoor unit
MCAI 20: Rotalock valves for connection to 2 indoor units
MCAI 40: Rotalock valves for connection to 3 indoor units. In case of connection to a single CooLSiDE Evo DX 040 unit, are available as option the indoor evaporating unit #2 “suction line collectors” for a single suction line realization.
R410A refrigerant charge.
 
ELECTRICAL PANEL
in accordance with EN60204-1 norms, suitable for outdoor installation, iP54 enclosure class, complete with:
Main switch with door lock safety
Inverter to drive the compressor motor.
Magnetothermic switch for fans motor protection
Magnetothermic switch for inverter protection
Transformer for auxiliary circuit and microprocessor supply.
Terminals for external enabling and smoke/fire alarm.
RJ45 connector for microprocessor terminal connection (the microprocessor terminal is not installed on the unit).
Power supply:
230/1/50 for model MCAI 10
400/3/50+N for models MCAI 20 and MCAI 40
 
CONTROL SYSTEM
Microprocessor system with graphic display for control and monitor of operating and alarms status. The system includes:
voltage free contact for remote general alarm.
Main components hour-meter.
Nonvolatile “Flash” memory for data storage.
Menu with protection password.
LAN connection.