t-NEXT DF DX
T_tNEXTDFDX_0719_EN
9
MEHITS S.p.A.
DATA BOOK
MAIN COMPONENTS
FRAMEWORK
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Base in aluminium extrusion, painted with epoxy powders. Colour RAL 9005;
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Frame in aluminium profile, painted with epoxy powders. The inner frame is provided with
seals for the panels. Colour RAL 9005;
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Panels in galvanized steel sheet with protective surfaces treatment in compliance with UNI
ISO 9227/ASTMB117 and ISO 7253, and painted with epoxy powders. Colour RAL 7016
hammered;
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Panels insulated with
polyurethane foam
and seals to ensure air tight.
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Hinged front panels with quick release removal system.
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Total front access for routine maintenance.
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Removable lateral and back side panels.
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Air flow OVER version:
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Air intake from the front through honeycomb type grille and air delivery from the top.
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Air flow UNDER version:
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Air intake from the top and air delivery from the bottom.
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Compartment for electrical panel on unit front for direct access to control and regulation
devices;
FILTER SECTION
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Washable air filters with COARSE 60% efficiency (according to ISO EN 16890), with cells in
synthetic fibre and metallic frame.
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Air filters access:
OVER version
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Frontal access for all machines
UNDER version
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For machines size E1
–
E2
–
E3 frontal access
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For machine size E4
–
E5
–
E6
–
E7
–
E8
–
E9 access from upper side
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Clogged filters sensor with differential pressure switch on air side.
ON / OFF COMPRESSORS SECTION
Units size E1 and E2:
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Rotary vane compressors for R410A refrigerant
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2-pole 3-phase electric motor with direct on line starting.
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Crankcase heater.
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Rubber supports.
Units size E3, E4, E5, E6, E7, E8 and E9
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Scroll rotary compressors with spiral profile optimized for R410A refrigerant.
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2-pole 3-phase electric motor with direct on line starting.
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Crankcase heater.
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Rubber supports.
FANS SECTION
The fan section is contained within the machine and includes:
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Centrifugal fans with backward curved blades with wing profile, single suction and without
scroll housings (Plug-fans), directly coupled to external rotor electric motor.
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Impeller in composite material exempt from rust formation.
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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 signal coming from
the microprocessor control.
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Fans control through ModBus. In case of failure, the control stops the interested fan indicating
the type of fault. The machine with more than one fan is not stopped.
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Adjustable External Static Pressure (ESP).
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Fan guard with rubber support (UNDER version)
