Specifications Overview
The document outlines the specifications and features of four digital room control units: RC30, RC35, RC35RF, and RC300. These units are designed for controlling heating systems with varying capabilities and connectivity options.

RC30
- Dimensions: 133x88x26 mm
- Protocol: On/Off
- Connection: Wired
- Daily Programs: 7
- Daily Changes: 4
- Power Supply: Two AA size LR6 1.5V batteries
- Features: Digital clock, frost protection, manual override

RC35
- Dimensions: 139x101x21 mm
- Protocol: OpenTherm
- Connection: Wired
- Daily Programs: 7
- Daily Changes: 6
- Power Supply: Two AA size LR6 1.5V batteries
- Features: Modulating, start/stop optimization, improves energy efficiency by up to 15%

RC35RF
- Protocol: OpenTherm
- Connection: Wireless
- Wireless Range: 30 m in residential environment
- Communication: ISM (868.0-870.0) MHz, RX Class 2
- Daily Programs: 7
- Daily Changes: 6
- Power Supply: Two AA size LR6 1.5V batteries
- Features: Modulating, start/stop optimization, improves energy efficiency by up to 15%

RC300
- Features: Wireless, internet connectivity, accessible via iOS or Android app
- Additional Options: Radiator control for radiators or underfloor heating
- Remote Access: Requires internet connection and account on mytotalconnectcomfort.com

General Features
- Operating Temperature: 0 – 40 °C
- Storage Temperature: -20 – 50 °C
- Relative Humidity: 10 – 90% without condensation
- IP Protection: IP30

Additional Components
- Central Controller: Smart hub for scheduling and regulating heating
- Radiator Controller: Controls radiators and acts as sensors
- Remote Access Gateway: Connects system to smartphone or tablet for remote control