https://github.com/zxdavb/ramses_cc

HA integration for CH/DHW and HVAC systems that use the RAMSES II RF protocol
https://github.com/zxdavb/ramses_cc

chronotherm evofw3 evohome hgi80 homeassistant hometronics itho orcon ramses resideo rf sundial ventiline

Last synced: about 1 year ago
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HA integration for CH/DHW and HVAC systems that use the RAMSES II RF protocol

• Host: GitHub
• URL: https://github.com/zxdavb/ramses_cc
• Owner: zxdavb
• License: gpl-3.0
• Created: 2019-11-29T18:10:38.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2025-02-23T18:21:17.000Z (over 1 year ago)
• Last Synced: 2025-03-29T21:05:44.605Z (about 1 year ago)
• Topics: chronotherm, evofw3, evohome, hgi80, homeassistant, hometronics, itho, orcon, ramses, resideo, rf, sundial, ventiline
• Language: Python
• Homepage:
• Size: 995 KB
• Stars: 88
• Watchers: 7
• Forks: 19
• Open Issues: 35
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

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README

          
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# New code owner wanted

I no longer am able to work on this project and active development has ceased.

Please reach out to me if you feel able to take over. I will hand over the entire repo to the right person.

## Overview

**ramses_cc** is a HA custom component that works with RAMSES II-based RF 868 Mhz systems for (heating) **CH/DHW** (e.g. Honeywell Evohome) and (ventilation) **HVAC** (e.g. Itho Spider).

This includes CH/DHW systems such as **evohome**, **Sundial**, **Hometronic**, **Chronotherm** and others.

The simplest way to know if it will work with your CH/DHW system is to identify the box connected to your boiler (or other heat source) to one of (there will be other systems that also work):

 - **R8810A** or **R8820A**: OpenTherm Bridge

 - **BDR91A** or **BDR91T**: Wireless Relay

 - **HC60NG**: Wireless Relay (older hardware version)

It also works with HVAC (ventilation) systems using the same protocol, such as from **Itho**, **Orcon**, **Nuaire**, **Ventiline**, **Vasco**, etc.

It uses the [ramses_rf](https://github.com/zxdavb/ramses_rf) client library to decode the RAMSES-II protocol used by these devices. Note that other systems, such as HVAC, also use this protocol, YMMV.

It requires a USB-to-RF device, either a Honeywell HGI80 (rare, expensive) or something running [evofw3](https://github.com/ghoti57/evofw3), such as the one from [here](https://indalo-tech.onlineweb.shop/).

See the [wiki](https://github.com/zxdavb/ramses_cc/wiki) for installation, configuration, troubleshooting, etc.