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CF-GAS SP Condensing autonomus single-package air treatment unit featuring high performances
Air treatment units, autonomous packaged ROOF-TOP with condensing gas heat exchanger. Rooftops CF-GAS SP 800-1200 are the ideal solution for the complete treatment of the air in medium-sized and large environments, as for commercial so for industrial sector. In fact, the appliance integrates the technologies for filtering, heating, cooling, air renewal and air dehumidification.
- Autonomous single-package equipment with automatic control of all functions by means of a cutting-edge microporcessor.
- Filtering, heating, cooling, free-cooling, free-heating, air discharge, air renewal.
- No intermediate fluids.
- Direct expansion refrigeration up to +40°C .
- Heating by heat pump up to +5°C; heating by high-efficiency INOX stainless steel gas heat exchanger down to -20°C.
- Operating temperatures between -20°C and +40°C (down to -45°C with the Low temperature kit).
- Standard version 250 PA, “S version” with high static pressure 450 PA.
The CF-GAS 800/1200 autonomous single-package CONDENSATION AIR TREATMENT UNITS provide for complete air treatment.
This equipment combines several technologies to filter, heat, cool and dehumidify the air to be supplied to commercial and industrial premises. The unit consists mainly of an isolated cabinet receiving the air flow generated by the ventilator group and where a top-efficiency condensation heat exchanger is installed, thereby providing for heating effect modulation. In the heating phase, the heat exchanger transfers heat energy through direct exchange between flue gas and the air flow to be heated. Namely, the air flow passes onto the heat exchanger’s hot surface and is thereby warmed up to be later supplied to the environment. Also cooling is performed without any intermediate fluid, through the so-called technique of “mechanical compression and direct expansion” of the refrigerating gas – something which can be achieved thanks to two separate refrigerating circuits working independently. The centrifugal fan’s characteristics make this equipment suitable to be installed wherever very high static pressure is required. The unit can perform air mixture, renovation, filtering and discharge, as well as just room ventilation during summertime.
The direct exchange technology employed by this equipment requires lower installation costs but first and foremost allows a tangible reduction of operating cost. As a matter of fact, the most important feature of this system is that heat is directly transferred to the premises to be heated, thereby avoiding inefficient transformation stages. The result is a much higher overall performance of the whole system.
The CF-GAS unit is manufactured with valuable stainless steel materials that allow coupling with burners working at variable heating power mode (both modulating and/or two-phase). It guarantees a safe, long-lasting functioning also at flue gas condensation conditions. This peculiar feature allows to monitor in a continuous and consistent way the equipment’s heating capacity output. Moreover, operating economy is maximized thanks to the functioning mode at condensation conditions. The aforementioned characteristics make this equipment also suitable to fully treat outside air intake for air renovation purposes, whose temperature changes from time to time according to the season.
The refined watertight cabinet is protuberance-free and its thermal well-insulated panels can be washed inside. These features perfectly allow to install the equipment outside with no additional protection needed, even under extreme climatic conditions reaching down to -45°C (provided it is fitted with a specific kit). All functions are managed in a fully automatic way by means of a complete electronic controller on the equipment’s side that can be interfaced with a user-friendly remote control device or yet even more complex appliances. A wide choice of accessories (such as regulation dampers, customized power capacity, remote controls, kit for high static pressure, etc.) come in to complete the product. Product safety is certified by renowned and professional International Authorities.
ROOF TOP consisting of:
Cooling section with hermetic SCROLL compressors placed in a dedicated compartment, working with eco-friendly R407C or R410A gas, independent cooling circuits, complete with finned coil heat exchanger of large front surface, axial fans at low rpm.
Heating section with heat pump (on request), operating down to +5°C complete with automatic changeover switch to the gas heating circuit below +5°C.
Gas heating section with heat exchanger three smokes rounds, with combustion chamber made of AISI 430 stainless steel, smoke pipes in AISI 304 stainless steel including radiant diaphram, exhaust manifold with condensate discharge, inspection doors, chimney connection and modulating burner.
Treatment section consisting of an outdoor /recirculation air mixing chamber, removable filter of G4 class and evaporation coils, condensate tray, double inlet centrifugal fan for air supply with low sound emission, variable belt/pulley trasmission, 400V / 50 Hz three phase electrical motor mounted on appropriate belt tightner support.
External casing painted with thermosetting powders, large thick support frame made of painted galvanized steel.
Electric and electronic board for control, protection and operational functions of the unit.
Remote electronic control panel to regulate automatically the modulating capacity with daily-weekly operation programming. This equipment can handle all unit functions: differential set-point, partialization, compensation, display alarms (high and low pressure cooling circuit, thermal relay supply fan...) and their reset.
|Model||U.M.||CF-GAS SP 800||CF-GAS SP 900||CF-GAS SP 1000||CF-GAS SP 1100||CF-GAS SP 1200|
|Max nominal heating capacity input (burned)||kW||259,0||323,0||391,0||461,0||590,0|
|USEFUL heating capacity output (gas heat exchanger)||max||kW||230,0||291,0||348,0||415,0||524,0|
|Cooling capacity output||max||kW||210,0||260,0||328,0||374,0||420,0|
|Nominal air flow||Nm3/h||33.800||41.600||52.500||60.200||67.200|
|Useful static pressure std / “S” / “SZ” version||Pa||250/450/800||250/450/800||250/450/800||250/450/800||250/450/800|
High static pressure version: the high static pressure variant consists in modifying the fan section (fan motor, transmission and for some models the fan itself) and the electrical board to ensure the maximum static pressure of 450 Pa.
Low temperature version (from -15°C to -25°C): for outside installation with temperature from -15°C to -25°C with air intake directly from the room or mixing the air intake from the room with max 30% of fresh air. The low temperature version consists of: increased thermal insulation of the unit, electrical motors with windings thermally protected from frost and an electrical heater with thermostat placed inside the burner protection box, which prevents to reach critical combustion air temperatures and which allows to keep the temperature of all electrical and electronic equipment controlled.
Low temperature version (from -25°C to -40°C): for outside installation with temperature from -25°C to -40°C with air intake directly from the room or mixing the air intake from the room with max 30% of fresh air. The low temperature version consists of: increased thermal insulation of the unit, electrical motors with windings thermally protected from frost and fan bearings suitable for operation up to -40°C and an electrical heater with thermostat placed inside the burner protection box, which prevents to reach critical combustion air temperatures and which allows to keep the temperature of all electrical and electronic equipment controlled.