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  2. Only Connect - Wikipedia

    en.wikipedia.org/wiki/Only_Connect

    Only Connect is a British television quiz show presented by Victoria Coren Mitchell. In the series, teams compete in a tournament of finding connections between seemingly unrelated clues. The title is taken from a passage in E. M. Forster's 1910 novel Howards End: "Only connect the prose and the passion, and both will be exalted." [2]

  3. Smart plug - Wikipedia

    en.wikipedia.org/wiki/Smart_plug

    Display in Rotterdam showing how to use Google Assistant with a smart plug to turn on an electric fan (Dutch: zet de ventilator aan)A smart plug is a power plug and socket (also known as a wall plug, outlet, or electrical connector) which can be fitted between power cords and sockets to function as a remote-controlled power switch.

  4. Room air distribution - Wikipedia

    en.wikipedia.org/wiki/Room_air_distribution

    Supply diffusers in the ceiling are fed by fan coil units in the ceiling void or by air handling units in a remote plant room. The fan coil or handling unit takes in return air from the ceiling void and mix this with fresh air and cool, or heat it, as required to achieve the room design conditions. This arrangement is known as 'conventional ...

  5. Knob-and-tube wiring - Wikipedia

    en.wikipedia.org/wiki/Knob-and-tube_wiring

    When a generic power outlet was desired, the wiring could run directly into the junction box through a tube of protective loom and a ceramic bushing. Wiring devices such as light switches, receptacle outlets, and lamp sockets were either surface-mounted, suspended, or flush-mounted within walls and ceilings.

  6. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    This "subsystem" is vital to the performance and basic operation of the overall HVAC system. The DDC system is the "brain" of the HVAC system. It dictates the position of every damper and valve in a system. It determines which fans, pumps, and chiller run and at what speed or capacity.

  7. Fan coil unit - Wikipedia

    en.wikipedia.org/wiki/Fan_coil_unit

    These motors are sometimes called DC motors, sometimes EC motors and occasionally DC/EC motors. DC stands for direct current and EC stands for electronically commutated.. DC motors allow the speed of the fans within a fan coil unit to be controlled by means of a 0-10 Volt input control signal to the motor/s, the transformers and speed switches associated with AC fan coils are not required.

  8. Wireless light switch - Wikipedia

    en.wikipedia.org/wiki/Wireless_light_switch

    The radio receiver's memory is programmed by any number of means to respond to certain selected "switches" or (more correctly) remote control transmitters. Using the existing power lines (such as INSTEON or X10): A receiver is plugged into an outlet and a device is then plugged into the receiver. The plug-in receiver is then programmed to the ...

  9. History of AC power plugs and sockets - Wikipedia

    en.wikipedia.org/wiki/History_of_AC_power_plugs...

    The earliest is believed to be British Standard 73 Wall plugs and sockets (five ampere two-pin without earthing connection) which was first published in 1915. The International Electrotechnical Commission in 1934 established technical committee TC 23 for electrical fittings. Only two meetings were held before the outbreak of the Second World ...