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Optional Accessories: P034 - Intake Free-Cooling Plenum - Mitsubishi Electric t-NEXT DF DX 011 P1 S Manual

Air conditioners for it cooling with dual fluid system.to be matched with remote air-cooled condenser.
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t-NEXT DF DX
OPTIONAL ACCESSORIES: P034 – INTAKE FREE-COOLING PLENUM
P034 UNDER
T_tNEXTDFDX_0719_EN
The optional is supplied separately and the installation on the unit is at Customer care.
The optional requires mandatory accessories "P161 T/rH air intake sensor", "4666 External air probe",
"A812 Free-cooling direct control" and "P122 Bottom air intake+blind panels, for OVER version only".
The plenums have same technical characteristics and base dimensions of the machine cabinet.
The optional allow to obtain free-cooling by direct ambient air intake into the room.
The dampers are proportionally managed by the microprocessor control, that regulates the quantity of
the ambient air to put in the room per the set-point.
COMPONENTS
Frame in aluminium extrusion, painted with epoxy powders. Colour RAL 9005;
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 9005;
Panels insulated with
Removable panels with screws.
Opposed blade dampers in galvanized steel sheet and safety grille for ambient air and room
air suction.
Actuator for each damper.
Terminals for electric connection to the unit.
Set of fixing elements to fasten the plenum to the unit.
T / rH air intake sensor. The sensor must be moved outside the air conditioners for a proper
read of the room temperature value.
External air probe. The sensor must be installed in the outdoor air suction duct or anyway
protected against atmospherics agent.
Free contact for free-cooling operating status monitoring.
Terminals on indoor unit for:
24 Vac power supply for the overpressure damper servomotor
o
0-10Vdc control signal for the servomotor
o
INSTALLATION EXAMPLE
Inspection panels for
air filters extraction
Ducting for ambient air suction are at Customer care.
A rain cover with grille on ambient air intake is recommended.
polyurethane foam
and seals to ensure air tight.
59
P034 OVER
P122 Bottom air intake+blind panels
MEHITS S.p.A.
DATA BOOK

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