NEXT CW. ..... 6,4 ÷ 105 kW

MAIN FEATURES

• Chilled water feeding precision air conditioner.
• 15 models available, 6 versions for a wide selection opportunity.
• Chilled water feeding.
• Two-way chilled water valves.
• EC plug-fans.
• Suitable for indoor installation.

MAIN BENEFITS

• Technical synergy with RC Group liquid chillers.
• Availability of electric heater.
• Availability of steam humidifier.
• Availability of hot water heating coil.
• Availability of extra circuit heating coil (only for 4R version).
• Availability of units with separate fan section, PLUS.
• Complete set of optional accessories: filters, plenum, panels, stand.
• Easily of maintenance.

INDOOR INSTALLATION

WORKING LIMITS

Room air temperature:
14⁰C    minimum temperature with wet bulb.
24⁰C    maximum temperature with wet bulb. 
35⁰C    maximum temperature with dry bulb.

Room air humidity:

• 20%RH    minimum relative humidity.
• 75%RH    maximum relative humidity.

MAIN COMPONENTS

FRAMEWORK

• Base in aluminium extrusion, painted with epoxy powders.
• Frame in galvanized steel sheet.
• Galvanized steel sheet panels painted with epoxy powders, internally insulated with noise absorption material and seals to ensure air tight with the panels.
• Hinged front panels with quick release removal system.
• Total front access for routine maintenance.
• Removable lateral and back side panels.
• Colour: RAL 9005 for base and frame (black)
• RAL7016 for panels (anthracite gray)

FILTER SECTION

Size E0:

• Washable air filters with G2 efficiency, with cells in synthetic fibre and metallic frame (EN 779-2002).

Size E1, E2, E3, E3P, E4, E5, E6, E7, E8, E9 and all PLUS series:

• Washable air filters with G4 efficiency, with cells in synthetic fibre and metallic frame (EN 779-2002).

COOLING 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.
• The heat exchanger is available in 4R, 6R or 8R version. The choice must be made when ordering.
• The heat exchangers in 6R or 8R version are not available for size E0 units.
• 2-way motorized valve for water flow regulation with 0÷10 VDC control actuator and emergency manual control. Nominal operating pressure up to 1600 kPa and closing pressure (Δps) of 1400 kPa.
• Frame in galvanized steel.
• Condensate tray in  peraluman with PVC flexible discharge pipe.

ELECTRICAL PANEL
In accordance with EN60204-1 norms complete with:

• Main switch with door lock safety.
• Magnetothermic switches for fans.
• Contactors for each load. The supply fans equipped with EC electric motor and don’t  require contactors.
• Transformer for auxiliary circuit and microprocessor supply.

Terminals:
OUTLETS

• voltage free deviating contact for General Alarm 1
• voltage free contact for supply fans status. INLETS
• Emergency unit stop with signalling on display (external alarm).
• External enabling.
   

Power supply 230/1/50 for size E0.
Power supply 400/3/50+N for other size.

CONTROL SYSTEM
Microprocessor system with graphic display for control and monitor of operating and alarms status. The system includes:

• Real time clock.
• Predisposition for connectivity board housing ( RCcom MBUS/JBUS, LON, BACnet for Ethernet (SNMP- TCP/IP), BACnet for MS/TP).
• Main components hour-meter.
• Nonvolatile “Flash” memory for data storage in case of power supply faulty and for alarms status recording (2MB).
• Menu with protection password.
• LAN connection.