t-NEXT DF DX
T_tNEXTDFDX_0719_EN
35
MEHITS S.p.A.
DATA BOOK
1
2
4
3
OPTIONAL ACCESSORIES: P121
–
FRONT AIR BOTTOM PANEL
Available for OVER units.
The optional is not compatible with “P122 Bottom air blind panels” for OVER units.
With this accessory, it is possible a noise insulation of the machine base, when the machine is installed
directly on floor as raised floor, wood floor etc.
The accessory includes:
•
Panel in galvanized steel sheet.
•
Noise insulation with special soundproof material.
The bottom panel is supplied assembled inside the unit base and does not modify the unit
dimensions.
OPTIONAL ACCESSORIES: 601
–
SOLENOID VALVE ON LIQUID LINE
The accessory has the function of closing the liquid line, in the event of the machine stopping or
blackout, avoiding the risk of liquid refrigerant migration into the evaporator.
Recommended accessory for:
-
Refrigerating lines greater than 10m in equivalent length.
-
Machines equipped with electronic expansion valve.
OPTIONAL ACCESSORIES: A548 - CONSTANT PREVALENCE
The optional is a differential pressure
sensor with a 0…20mA output signal.
The device is installed in
the machine.
The sensor is connected to the microprocessor control of the indoor unit and allows the control of:
A548 - CONSTANT PREVALENCE
The system controls the air pressure in the raised floor (Under version) or in the duct (Over version).
Through the relief piping of the room pressure (low pressure side) and the air supply of the fan (high
pressure side) the fan rotation speed is controlled to keep the air pressure constant.
Pressure control range from 0 to 100 Pa.
OPTIONAL ACCESSORIES: P091 - BACK-UP MODULE CONTROLLER
The optional is installed within the electrical panel.
The optional is not available for size E1.
The system powers the microprocessor for a few minutes in the event of a power failure or voltage
surges, preventing the re-boot of the controller.
1.
Air conditioner
2.
Air conditioner base
3.
Bottom panel
4.
Insulation with special sound
soundproof material
