3
POSITIONING
The units are designed for indoor installation.
• Make sure that the supporting surface is perfectly level and able to bear the full weight of the unit (see general
specifications).
Interpose a layer of rubber sheeting between the base of the unit and the supporting surface (to reduce noise and vibration).
• Observe the specified functional clearances.
ACCESSORIES
The units can be fitted with the following accessories (upon request):
- Electric heating coil
Electric heating section made from reinforced aluminium
heaters with integral fins, 2 stage operation and safety
thermostat.
- Water heating coil
Extra heating coil with 3-way balancing control valve
supplied by external hot water.
- Hot gas post-heating
Used to maintain the desired room temperature in the
event of an increase in relative humidity, adding sensible
heat to the air which has already been cooled and
dehumidified.
Operation occurs by advantageously exploiting part of the
hot gas taken from the compressor discharge, conveying it
to a coil located downstream of the cooling section.
- Steam humidifier
Immersed electrode steam humidifier with electronic
controller featuring proportional control fitted with humidity
probe on the air intake and steam distributor.
- Differential pressure switch for dirty air filters
Differential pressure switch suitable for measuring a
pressure difference between the air intake and outlet in the
filter section. In the event where the differential pressure is
greater than the set value, a remote alarm is signalled.
- Soundproofing panels
The panels are lined on the inside with micro-perforated
metal plate for the maximum sound insulation.
- Serial communication module to PC or BMS
Serial connection kit for connecting the unit control module
to a centralised control system (PC or BMS).
- Phase monitor
Used to check the presence and the correct sequence of
the phases of the power supply.
- Flooding sensor
Floor water sensor to detect leaks from the water circuit,
with remote alarm.
- Adjustable support frame
Height adjustable support frame using painted telescopic
columns (RAL 7016).
Adjustment is possible from 300-500mm or from 500-
700mm.
- Adjustable support frame with duct
Height adjustable support frame using painted telescopic
columns (RAL 7016), fitted with aluminium deflector that
deviates the flow of air leaving the unit.
Adjustment is possible from 300-500mm or from 500-
700mm.
- Front outlet plenum
Plenum for front air discharge, outlets with double row of
painted "aluzink" adjustable fins (RAL7016).
- Outlet plenum on three sides
Plenum for air discharge from three sides, outlets with
double row of painted adjustable fins (RAL 7016).
- Clock
Programmable clock for automatic starts, set point
changes and time band settings.
- Condensate drain pump
The condensate drain pump is used to discharge the water
present in the pan to the outside, when the outside
discharge point is higher than the pan. The pump is
controlled automatically by a built-in level sensor.
- Isolating damper
The air outlet damper, controlled by an actuator with spring
return, isolates the unit when it is not in operation.
- EU5 air filter
Filter made up of a galvanised plate frame with galvanised
and electric-welded protective mesh, and regenerable
filtering media made from polyester fibre sized with
synthetic resins.
Efficiency F5 according to CEN-EN 779 standard
(classification EU5 according to Eurovent 4/5 – average
colorimetric efficiency between 40% and 60% ASHRAE
52-76 Atm). Self-extinguishing (resistance to flame class 1
- DIN 53438).
- Liquid line solenoid valve
Solenoid valve used to prevent the unwanted migration of
refrigerant during inactivity.
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