Description
Honeywell Home evohome 4th Generation Smart Thermostat (ATP931GM4100)
✨ Key Features
- 🔥 Control up to 12 heating zones independently for maximum comfort and efficiency
- 📶 Built‑in Wi‑Fi for effortless app control via Honeywell Home / Resideo
- 🧠 Smart optimisation with load compensation and advanced scheduling
- 🔧 New R9H911RF3000 receiver with integrated OpenTherm and dual on/off switching relays for heating and hot water valves
- 🌡️ Direct cylinder temperature sensing using simple NTC sensor via the R9H receiver — no more wireless hot water kit required
- 📡 Reliable 868MHz RF communication with HR93, DT4R, HCC100 and other evohome modules
- 🌍 Supports single and multi zone underfloor heating via DT4R sensor and wireless relay box or multi zone with the HCC100 controller
- 🔋 Rechargeable battery for easy programming and commissioning when taken off the table stand
📘 Official Resideo Product & Support Links
📄 Manuals & Technical Documents
- User Guide – evohome Controller (PDF)
- Simplified Installation Guide – evohome system (PDF)
- Advanced Installer Guide – evohome System (PDF)
- R9H Receiver / OpenTherm Documentation (PDF)
🚀 What’s New in the 4th Generation?
The 4th Generation evohome introduces major upgrades across the entire ecosystem. The new R9H911RF3000 receiver features built‑in OpenTherm, eliminating the need for the old R8810A OpenTherm Bridge. It also provides dual on/off switching for heating and hot water motorised valves, making it suitable for S‑Plan, Y‑Plan and traditional boiler systems without multiple wireless relays.
A dedicated sensor port in the R9H receiver allows direct cylinder temperature monitoring using NTC sensors, replacing the previous hot water kit and simplifying installation dramatically.
The new HR93 radiator controllers offer improved accuracy, quiet motor operation and enhanced RF stability, while the HCC100 underfloor heating controller provides modernised multi zone UFH integration with better diagnostics and reliability.
🔧 Installer‑Focused Design
- OpenTherm ready receiver for future boiler modulation and efficiency gains
- Cylinder temperature sensing using directly wired NTC sensors – no more wireless CS92A required
- Supports legacy and multi zone heating systems — S‑Plan, Y‑Plan, UFH and smart zoning
- Simple binding process for HR93, DT4R, HCC100 and other modules
- Advanced RF diagnostics built into the controller
- Clear installation manual wiring diagrams and guided setup using the touchscreen
🌍 Perfect for Modern Homes
The evohome 4th Generation is ideal for homes wanting complete comfort control, reduced energy usage and future‑proof heating compatibility. Whether you’re upgrading from older Honeywell controls or replacing a basic smart thermostat, evohome delivers unmatched flexibility and performance across radiators, cylinders, underfloor heating and renewable heating systems.
🏴☠️ Why Buy From Pirate Heating Supplies
- Genuine Honeywell Home / Resideo stock
- 15 years of evohome expericnce – expert advice on zoning, OpenTherm and heating system design
- Fast UK delivery from our Newtown distribution hub
- Installer‑focused product information and support
- Specialist knowledge of the new HR93, HCC100 and R9H products — from ordering to installation we know our stuff! 🏴☠️
