MAIN STRUCTURE
The inner frame consists of 2 sides + a back panel assembled together and of a movable element (condensate tray). It is made of galvanised steel: 8/10 mm thick for units size 512÷516 and 10/10 mm for sizes 520÷528.
The sides have a special structure near the coil connections in order to avoid the headers’ deformation while connecting the unit to the system (anti-torsion structure).
All the inner elements are completely lined with closed cell thermal insulation material. The insulated condensate tray can be removed independently of the other components and it is perfectly effective both in vertical and in horizontal position.The condensed water is discharged from the side (left or right, by choice), through a 20 mm external diameter header.
WATER COILS
The water coils consist of aluminium fin packs and mechanically expanded copper tubes. Standard water connections are on the right side of the unit, facing the air outlet; however the coils can be easily removed and reversed on site. Each header is provided with a very handy air valve, to allow air venting or water drainage from the coil. All water connections are ½“ G (female threaded).
Max operating pressure (without valves): 16 bar.
Min/max water temperature: 5/85 °C.
FAN DECK
The EC "brushless" motor is combined to a dedicated electronic device (inverter) and a DIP SWITCH card that can be set accordingly to the air pressure drop in the system. The inverter can be managed by specific regulators providing a 0÷10Vdc signal or by the digital OMNIBUS 360 control, giving the possibility to fully control the fan speed (0÷100%) and/or to manually select three fan steps (high-med-low speed).
The motor and the scrolls are fixed on a galvanized steel basement: 12/10 mm for sizes 512÷516 and 15/10 mm for sizes 520÷528. The motor is located in a proper cradle and fixed with elastic ribbon supports.
Each fan deck is dinamically balanced, to reduce noise and wear of the components to minimum levels. It is independent of the structure and it can be easily removed by taking away two fixing screws. It consists of a centrifugal fan with one (sizes 512÷514) or two (sizes 516÷528) aluminum impellers directly splined to the motor shaft and of galvanized steel scrolls. All motors are suitable for 50/60Hz operation. Power supply: 230V ±10%.
ELECTRIC PANEL
The electric box (CBL00) consists of a self-extinguishing plastic box (class V0 - IP30) containing a 12 poles terminal board with screw terminals and a DIP SWITCH card (for setting the inverter). The electric box is fixed on the left side of the unit (standard) and it can be easily removed and shift on the opposite side, if water connections need to be reversed.
One electric wiring diagram is always supplied along with each unit, showing the ordered electrical accessories. The full respect of the wiring diagram is necessary for a good functioning of the unit.
AIR FILTER
The regenerable air filter is made of non-hygroscopic filtering material enclosed in a galvanized steel frame with two wide mesh nets.
The filter is located on the bottom side of the unit and it can be removed by releasing its fixing. It can be cleaned by washing it with soap and water, drying it in open-air. Filtering class: G1.
DECORATIVE CASING
The decorative casing is made of metal sheet (thickness 8/10 mm for sizes 512÷516 and 10/10 mm for sizes 520÷528), painted in RAL9003 with oven dried epoxy powders. The casing is fixed to the inner structure with screws and retainers.
The heat-resistant ABS standard grilles are movable and they can be turned into all 4 directions without any tool. Two access doors are located on the side of the grilles and give access to the control panel and to the water connections respectively. Grilles and access doors are in white colour, RAL9016.
ACCESSORIES
SET OF FEET
The set of decorative supporting feet (KCP) is composed by two elements: a bearing element fixed to the internal structure of the unit, to support the weight of the unit, and a visible element fixed to the previous one, painted in white colour RAL9003.
Height: 85 mm
FEET AND FRONTAL GRILL
Set of painted steel feet and frontal grill (KZL), in the same colour as the decorative casing.
Height: 85 mm
VERTICAL PAINTED BACK PANEL
The decorative vertical back panel (PPV) is made of metal sheet painted in the same colour as the casing. It is designed to cover the back side of the unit when it is in view.
VERTICAL EXTERNAL AIR INTAKE
The vertical external air intake (KPAE/V, KPAE/VM) is composed by two supporting feet and a damper (manual or motorized). A frontal grill is available upon request to cover the damper.
CONTROL VALVES
A wide choice of regulating valves is available, factory fitted: 2 way or 3 way valves, actuators ON/OFF 230V, ON/OFF 24V, MODULATING 0-10V (24V), PIV (pressure independent valves).
Shut-off full bore ball valves are available (DT), to separate the unit from the piping system if maintenance is required.
The auxiliary drain pan is always delivered together with the basic unit.
ELECTRIC HEATER
Stainless steel electric heater with relay card (CBL20), supplied with two safety thermostats: one with automatic reset and the other with manual reset. Power of the electric heater depends on the size of the 2 or 3R fancoil unit where it is installed.
CONDENSATE PUMP
The condensate pump is required when the natural water discharge is not allowed.
Functions:
- forced evacuation of the condensed water.
- Technical features:
- max water flow: 20 l/h
- max suction: 3 m
- max water discharge: 10 m
- power supply: 230V~ - 50/60 Hz
- power: 14W
- alarm output: NC 8A - 250V
- detection levels in mm: Running: 16, Stop: 11, Alarm: 19
- thermal protection (overheating): 115°C
- sound level at 1 m: 20 dB(A)
- no-return valve on the outlet.
SPECIAL COLOURS
Special RAL colours for the decorative casing are available, upon request.
REGULATION
A wide choice of electronic regulators with 0-10V signal is available upon request: from the simple microprocessor control (EDCL or EDCR) to OMNIBUS 360 digital controllers.
Sensors compatible to microprocessor control and OMNIBUS 360:
- Water sensor, having function of minimum water temperature thermostat or Summer/Winter changeover switch
- Air sensor at the air intake of the unit
- Check sensor at the air outlet of the unit (OMNIBUS 360 controls only), to detect and provide malfunction alarms.
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