RECOM 3 SR EC Rotary

Product Description

The RECOM SR EC series of air supply and extract units are modern, factory-assembled ventilation aggregates designed to ensure efficient indoor climate management and a high level of energy recovery. These units not only provide quality air filtration but also ensure a continuous supply of fresh air and effective removal of stale air. The heat from the extract air is efficiently transferred to the supply air via a high-performance rotary heat exchanger, with a recovery efficiency of up to 90%. Thanks to innovative EC motors, electricity consumption is reduced by 1.5–3 times compared to traditional motors, while ensuring high performance and extremely quiet operation. The RECOM 3SR EC model is adapted for vertical installation, connects to Ø125 mm ducts, and features a special connection for a kitchen hood.

Key Features:

• Vertical Installation and Durable Casing: Constructed from galvanized steel, with internal 40 mm thick mineral wool insulation (for RECOM 3SR/4SR/6SR EC models), providing excellent heat and sound insulation. The service side (right or left) can be chosen during installation by swapping the front and rear panels.
• High-Performance Rotary Heat Exchanger: A modern rotating cylinder made of corrugated aluminum foil efficiently transfers not only heat but also some moisture between air streams. This helps prevent condensate formation, maintain comfortable indoor air humidity, and ensures good frost resistance. The efficiency for this model ranges from 81% to 90%.
• Energy-Saving EC Fans: Utilizes advanced, electronically commutated (EC) motors with an external rotor and centrifugal impeller. They boast an extremely high efficiency factor (up to 90%) and allow for precise and quiet control of airflows across the entire speed range.
• Effective Filtration: Supply air is cleaned in two stages – by G4 and F7 class filters. Air extracted from the premises is filtered by a G4 class filter.
• Integrated Electric Heater: An automatically activating electric heater ensures that the supply air temperature does not fall below the set comfort limit, even if heat recovery is insufficient. Equipped with all necessary safety measures.
• Special Connection for Kitchen Hood: All SR series units, including the RECOM 3SR EC, feature a fifth spigot, allowing for convenient and effective connection of a kitchen hood extract duct.
• Smart Control System: The unit is controlled via Wi-Fi using a mobile application (remote control panel purchased separately). Integrated functions include: speed regulation, filter status monitoring (based on operating time), fault diagnostics, weekly programming, timer, BOOST, and fireplace modes.

Technical Specifications (RECOM 3SR EC):

• Maximum Airflow: 300 m³/h
• Heat Recovery Efficiency: 81% to 90% (according to EN 13141-7)
• Power Supply Voltage: 1~230 V / 50 Hz
• Maximum Power (without el. heater): 195 W
• Maximum Electric Heater Power: 650 W
• Total Maximum Power: 845 W
• Maximum Current (without el. heater): 1.9 A
• Maximum Electric Heater Current: 2.8 A
• Total Maximum Current: 4.7 A
• Maximum RPM: 2050 min⁻¹
• Sound Pressure Level (at 3m): 26 dBA
• Transported Air Temperature: -25°C to +40°C
• Casing Material: Painted steel
• Insulation: Mineral wool, 40 mm
• Filters: Extract air G4; Outdoor air F7 (technical table indicates G4, F7, which is more accurate based on description)
• Duct Connection Diameter: Ø125 mm
• Dimensions (Width x Depth x Height/Height with connections H1): 508 x 598 x 630 / 754 mm (As per Dwg. 2)
• Weight: 64 kg
• Heat Exchanger Material: Aluminum
• Energy Efficiency Class: A

Control Functions and Accessories:

• Control via mobile application over Wi-Fi (standard feature).
• Filter change indication based on operating hours counter.
• Full fault description on the mobile device.
• Weekly schedule, timer, BOOST mode, fireplace mode.
• Minimum supply air temperature regulation.
• Available accessories: Wired control panels (FP, FPD LCD), Wi-Fi control panel (FP Wi-Fi), kitchen hood (SR), cooler connection, humidity control, CO₂ control, VOC control, fire alarm sensor connection.

The RECOM 3SR EC is an efficient and functional vertical installation heat recovery unit, designed for medium-sized residential premises, ensuring a high level of energy recovery, quiet operation, and convenient control, with the option to integrate a kitchen hood.