Hitachi Set Free Sigma Standard Efficiency Heat Recovery Heat recovery VRF

Product Description

The Hitachi Set Free Sigma Standard Efficiency VRF system is a versatile, modular solution engineered for high-performance climate control in commercial buildings. Supporting both 2-pipe and 3-pipe configurations, this system is designed to simplify installation, commissioning, and maintenance. Its architectural flexibility allows for single modules from 8HP up to 24HP, with the potential to combine multiple units to achieve up to 96HP in a single system. This makes it an ideal choice for large-scale projects requiring scalable and reliable HVAC performance. The system utilizes advanced technology to enhance energy efficiency, featuring a new DC inverter scroll compressor, a specially shaped Sigma heat exchanger, and optimized fans for improved airflow. The Smooth Drive Control enables precise capacity adjustments in 0.1Hz increments, allowing the system to operate at just 5% of its maximum capacity, which significantly improves seasonal efficiency during part-load conditions. Furthermore, user comfort is prioritized through variable refrigerant temperature control and adjustable off-coil temperatures, which effectively prevent cold draughts. With an operating range down to -10°C for cooling and -15°C for heating, the Sigma system provides consistent performance across various environmental conditions. Its compatibility with the wide range of Hitachi System Free indoor units, including specialized water modules, ensures a flexible solution tailored to modern smart building requirements.

Specifications

Manufacturer

Hitachi

Model

Set Free Sigma Standard Efficiency Heat Recovery

Type

Split

Subcategory

Heat recovery VRF

Capacity

22.4 kW

Application

Commercial

Condition

New

MPN / SKU

RAS-8FSXNSE