Honeywel T4R Wireless 7 Day Programmable Thermostat Y4H910RF4003 (Replaces CM927 CMS927 CM921 CMS921 CM727 CM721) Genuine Part - Hanicks
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£ 160.00
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£ 160.00
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Product description
- Wireless Programmable Thermostat will replace the following Honeywell CM Series products: CM921, CMS921, CMS921B1042 CM927, CMS927, CMS927B1049 CM727, CMS727, CMS727E1016 CM721, CMS721
- 7‐Day Programmable Schedule – Configure flexible heating plans for each day or use preset 5/2/1-day options, with up to 4–6 independent time & temperature slots per day
- Wireless Convenience – Pre-paired thermostat and receiver with up to 30 m range; no binding needed for a straightforward install
- Dual Control Compatibility – Works with 24–230 V on/off systems (boilers, heat pumps, zone valves) and supports OpenTherm boilers via the receiver module
- Energy‐Saving Smart Features – Includes TPI control, “optimum start/stop”, frost‐protection down to 5 °C, and holiday mode (1–99 days)
- User‐Friendly Design – Large backlit LCD, intuitive push‐button interface, temporary override (1–2 hours), and automatic daylight saving adjustment
- Easy Installation & Maintenance – Flip-up wiring terminals, clear LED indicators, battery-powered (2×AA with low-battery alert), wireless relay, and clear wiring labels for quick setup
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