MHI Develops "SL4" Next-Generation Centralized Remote Controller for Building AC Systems, Featuring Web Server Functions and Large 9-inch Color LCD Touchscreen

The SL4's 9-inch LCD screen indicates AC operating status using five colors (blue, red, yellow, green, gray) on a black matrix. Sharp clarity and easy visual recognition are achieved through the adoption of a white border around the touchscreen. A comprehensive overhaul of screen structure has resulted in protruding thickness of only 23 millimeters (mm), the thinnest in the industry, creating a highly stylish design.

The SL4 is standard equipped with local area network (LAN) and web server functions that enable AC units to be set, operated and monitored via computer screen, and operating data can also be downloaded. In addition, monitoring screens can be displayed on tablet devices adopting multi-touch technology.

To promote energy savings, the SL4 features a 4-step demand control function, including an emergency stop mode as the final step. The first step performs temperature setting shifts in increments of ±2°C, while the second and third steps progress to thermo-off, halting compressor operation. Another feature allows visual confirmation of the integrated value of operation time, for detailed energy management.

Going forward, MHI will continue to pursue expansion of its building AC systems and other air-conditioning equipment business, developing products that offer outstanding operating ease and efficiency to meet the market's expanding needs.