NEXT DL......DW.....R407C.....7,0 ÷ 40,7 kW

MAIN FEATURES
Precision air conditioner.
Displacement air delivery (DL).
35 models available, 3 versions for a wide selection opportunity.
Available in three versions: for matching with remote air cooled condenser (DX), with built-in water cooled condenser (DW), for chilled water feeding (CW).
EC plug fans.
Suitable for indoor installation
DX Version:
EER up to 3,74.
On/off scroll compressors
Single refrigerant circuit.
R410A refrigerant charge.
DW Version:
EER up to 5,25.
On/off scroll compressors
Single refrigerant circuit.
R410A refrigerant charge.
Built in water cooled condenser
CW Version:
Chilled water feeding
Two way chilled water valve

INDOOR INSTALLATION
The machines are designed for indoor installation.

WORKING LIMITS
Room air temperature:
14”C minimum temperature with wet bulb.
24”C maximum temperature with wet bulb. 35”C maximum temperature with dry bulb.

Room air humidity:
20%RH minimum relative humidity. 75%RH maximum relative humidity.

Water cooled condenser: Water temperature:
30/50°C Outlet temperature range.

MAIN BENEFITS
Wide selection opportunity.
High EER
High efficiency at partial load.
Availability of electric heater.
Availability of steam humidifier.
Complete set of optional accessories: filters, plenum, panels, stand
Easily of maintenance.

NEXT DX DL / NEXT DW DL MAIN COMPONENTS
FRAMEWORK
Base in aluminium extrusion, painted with epoxy powders.
Inner frame and upper frame in aluminium profile, painted with epoxy powders. The inner frame is provided with seals to ensure air tight with the panels.
Galvanized steel sheet panels externally coated with PVC film and internally insulated with noise absorption material.
The panels are fixed to the frame with non visible mounting system.
Electric board in separate technical compartment on the machine front.
Colour: RAL 9005 for base and frame
Similar to RAL7015 for panels, with hammered finish
Air intake from the top and air delivery from the front (displacement).

COMPRESSORS
Orbiting spiral (SCROLL) hermetic compressors with spiral profile optimized
for R410A refrigerant.
ON / OFF capacity control (0 / 100% each compressor).
2-pole 3-phase electric motor with direct on line starting.
Crankcase heater.
Electric motor thermal protection via internal winding temperature sensors.
Terminal box with IP54 enclosure class.
Rubber supports.

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

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.
Single refrigerant circuit.
Frame in galvanized steel.
Condensate tray in peraluman with PVC flexible discharge pipe.

FANS SECTION
Centrifugal fans with backward curved blades, single suction and without
scroll housings (Plug-fans), directly coupled to external rotor electric motor.
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.
Temperature sensors on air intake.
Temperature sensor on air delivery.

REFRIGERANT CIRCUIT
Thermostatic expansion valve.
Sight glass.
Filter dryer on liquid line.
Pressure transducers with indication, control and protection functions, on low and high refrigerant pressure.
High pressure safety switch with manual reset.
Liquid receiver with accessories.
Refrigerant circuit with copper tubing with anticondensate insulation of the suction line.
Plastic capillary hoses for pressure sensors connection.
R410A refrigerant charge.

NEXT DX DL:
valves on gas delivery and liquid return for coupling to remote air cooled
condenser.
0÷10V proportional signal to manage the condensing control system of the remote air cooled condenser.
NEXT DW DL:
Copper brazed plate type with cover plates, plates and connections in AiSi 316 stainless steel.
0÷10V proportional signal to manage the condensing control system of the 2-way motorized valve.
ELECTRICAL PANEL
In accordance with EN60204-1 norms complete with:
Main switch with door lock safety.
Magnetothermic switch for each compressor.
Magnetothermic switches for fans.
Contactors for each load.
The supply fans equipped with EC electric motor are not supplied with contactors.
Transformer for auxiliary circuit and microprocessor supply.
Panel with machine controls.
Power supply 400/3/50+N

CONTROL SYSTEM
MP.COM 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.

TO BE MATCHED WITH REMOTE CONDENSER
The NEXT DX DL are designed to be matched with remote condensers with
axial fans (TEAM MATE series) or plug-fans (TEAM MATE PF series).

NEXT CW DL MAIN COMPONENTS
FRAMEWORK
Base in aluminium extrusion, painted with epoxy powders.
Inner frame and upper frame in aluminium profile, painted with epoxy powders. The inner frame is provided with seals to ensure air tight with the panels.
Galvanized steel sheet panels externally coated with PVC film and internally insulated with noise absorption material.
The panels are fixed to the frame with non visible mounting system.
Electric board in separate technical compartment on the machine front.
Colour: RAL 9005 for base and frame
Similar to RAL7015 for panels, with hammered finish
Air intake from the top and air delivery from the front (displacement).

FILTER SECTION
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.
3-way motorized valve for water flow regulation and emergency manual control.
Frame in galvanized steel.
Condensate tray in peraluman with PVC flexible discharge pipe.

FANS SECTION
Centrifugal fans with backward curved blades, single suction and without
scroll housings (Plug-fans), directly coupled to external rotor electric motor.
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.
Temperature sensors on air intake.
Temperature sensor on air delivery.

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 are not supplied with contactors.
Transformer for auxiliary circuit and microprocessor supply.
Panel with machine controls.
Power supply 400/3/50+N

CONTROL SYSTEM
MP.COM 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.