RAD ASelf-contained direct-expansion air handling unit
Compact, efficient and ideal for homes in dry climatic zones.
The complete solution for those who need air renewal, active cooling and dehumidification in a single compact vertical system. High performance, reduced energy consumption and full comfort without chilled water.
Autonomous, without chilled water
RAD A uses a direct-expansion refrigeration circuit, operating entirely with outdoor air.
It does not require chilled water and can cool and dehumidify simultaneously.
Simultaneous cooling and dehumidification
Unlike isothermal systems, RAD A can lower both temperature and humidity at the same time, reaching supply air temperatures of 12–16°C, depending on conditions.
High-efficiency heat recovery
The cross-flow heat exchanger provides efficiencies above 82% in summer and up to 89% in winter, reducing overall system consumption.
Winter thermal integration
The integrated hydronic coil can provide heating at low outdoor temperatures, ensuring supply air up to 49°C.
Compact vertical installation
The unit is designed for installation in reduced technical spaces, typical of modern apartments.
Low-consumption EC fans
Constant airflow and reduced consumption even in active recovery, with high available static pressure to manage air distribution.
RAD A ensures consistent comfort throughout the year: it cools and dehumidifies simultaneously in summer, recovers energy in mid-seasons and provides thermal integration in winter through its hydronic coil. A complete climate management system based solely on outdoor air.
Summer
Cools and dehumidifies simultaneously via the DX circuit, reaching supply temperatures between 12.4 and 16.6°C.
Maintains comfort even in critical climatic conditions with EER up to 3.93.
Winter
Uses heat recovery up to 89% and integrates thermal output via hydronic coil, supplying treated air up to 49°C even with very low outdoor temperatures.
Mid-seasons
Operates in recovery-only mode, automatically reducing energy consumption thanks to EC fans while maintaining a stable indoor climate.
Choose the configuration that best suits your needs
Type
RAD 20 A: self-contained direct-expansion version, 100% outdoor air
Installation
V: vertical, designed for niche or technical space installation
| Cooling |
27°C indoor – 35°C outdoor Capacity: 2209 W |
27°C indoor – 30°C outdoor Capacity: 1915 W |
24°C indoor – 35°C outdoor Capacity: 2378 W |
24°C indoor – 30°C outdoor Capacity: 2032 W |
Additional information
Heating
Indoor air 20°C – outdoor –5°C – RH 80%
Heat recovery: 1506 W
70/60°C → 2150 W (1969 W available)
50/45°C → 1360 W (1179 W available)
40/35°C → 860 W (678 W available)
Supply air temperature: 30–49°C
Heating
Indoor air 20°C – outdoor –5°C – RH 80%
Heat recovery: 1506 W
70/60°C → 2150 W (1969 W available)
50/45°C → 1360 W (1179 W available)
40/35°C → 860 W (678 W available)
Supply air temperature: 30–49°C
Airflow data
Fresh air flow rate: 200–400 m³/h
Exhaust air flow rate: 200–400 m³/h
Supply static pressure at 200 m³/h: 350 Pa
Exhaust static pressure at 400 m³/h: 135 Pa
General data
Power supply: 230 V – 50 Hz
Max compressor power input: 690 W
Fans: 2 × 72 W
Rated current: 4.6 A
Refrigerant gas: R410a
Vertical version weight: 100 kg
Sound pressure level at 1 m: 38 dB(A)
Designed to deliver high climate performance while reducing energy consumption and auxiliary systems.
High-efficiency heat recovery
Up to 89%, with cross-flow exchanger reducing heat pump demand.
Low-consumption EC fans
Constant airflow and reduced consumption even during active recovery.
Cooling and dehumidification without chilled water
The DX circuit operating on outdoor air only simplifies the system, reduces footprint and increases overall efficiency.
Download the full brochure
All detailed technical information, available models, possible configurations, and installation diagrams in a single PDF document.
• Complete electrical and hydraulic diagrams • Dimensions and weights of all models • Available accessories and compatibility • Detailed performance curves
Area reserved for designers and installers
Access the complete technical documentation reserved for professionals
How RAD A is made
Every RAD A unit is designed, assembled and tested entirely in our Italian facilities.
We do not market third-party products: we have been manufacturers since 1986, with over 30 years of experience in dehumidifiers for radiant systems.
In-house design
Every component is designed by specialized technicians.
Made-in-Italy assembly
Assembly and testing are performed in Italy with European certifications.
Individual testing
Each unit is individually tested before shipment.
Answers to the most common questions about RAD A
Yes, in many cases it covers both functions thanks to the DX circuit.
No, it is completely autonomous.
Yes, especially in dry climatic zones where active dehumidification is needed.
Up to 400 m³/h, depending on the mode.
No, sound pressure is 38 dB(A) at 1 meter.
No, the vertical version is designed for niches and reduced technical spaces.
Yes, through the hydronic coil with hot water.
