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    EPH Mains Operated Programmable Room Stat
    EPH Mains Operated Programmable Room Stat EPH Mains Operated Programmable Room Stat

    EPH Controls CP4M Mains Powered OpenTherm Programmable Room Thermostat

    Manufacturer: EPH Heating Controls, Thermostats & Programmers
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    The EPH Controls CP4M is a mains-powered digital programmable room thermostat designed to control a single heating zone. It supports OpenTherm, Optimum Start, TPI and On/Off control modes, offering flexible heating control for compatible boiler systems.

    Operating on a 230V AC power supply, the CP4M is designed to fit an industry-standard six-pin backplate. Its programmable functionality allows heating control to be tailored to your routine, while the adjustable switching differential provides flexibility when configuring the thermostat for your heating system.

    The CP4M is Boiler Plus compliant and supports OpenTherm control when connected to a compatible boiler.
    SKU: CP4M
    Availability: 17 in stock
    £52.16 incl tax
    i h

    Key Features



    • Manufacturer: EPH Controls

    • Model: CP4M

    • Product type: Mains-powered programmable room thermostat

    • Heating zones: 1

    • Control modes: OpenTherm, Optimum Start, TPI and On/Off

    • Power supply: 230V AC, 50Hz

    • Backplate: Industry-standard six-pin backplate

    • Contact rating: 230V AC, 7A

    • Switch output: SPDT, volt-free

    • Temperature range: 5°C to 35°C

    • Adjustable switching differential: 0°C to 1.0°C

    • IP rating: IP20

    • Compliance: Boiler Plus compliant


    Compatibility note: OpenTherm operation requires a compatible boiler and correct installation. Check your existing wiring and boiler control requirements before purchasing. Mains electrical connections should be handled by a suitably qualified installer.

    Products specifications
    Channel Single
    Programme Options 7 Day
    Warranty 5 Years
    Product Type Thermostat
    Range CP4
    Manufacturer EPH Controls
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