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2. 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.

3. Duct (flow) - Wikipedia

   en.wikipedia.org/wiki/Duct_(flow)

   Ducts for air pollution control in a 17000 standard cubic feet per minute regenerative thermal oxidizer (RTO). A round galvanized steel duct connecting to a typical diffuser Fire-resistance rated mechanical shaft with HVAC sheet metal ducting and copper piping, as well as "HOW" (Head-Of-Wall) joint between top of concrete block wall and underside of concrete slab, firestopped with ceramic ...

4. GMC Motorhome - Wikipedia

   en.wikipedia.org/wiki/GMC_motorhome

   The wheelbase from the front wheels to the centerline of the rear tandem pairs is 140 inches (360 cm) for the 23-foot (7.0 m) coach and 160 inches (410 cm) for the 26-foot (7.9 m) coach. All GMC Motorhomes are 96 inches (240 cm) wide and about 9 feet (2.7 m) tall including the usually-installed roof air conditioner.

5. Elevator - Wikipedia

   en.wikipedia.org/wiki/Elevator

   Electric fans or air conditioning units to enhance circulation and comfort. A control panel with various buttons. In many countries, button text and icons are raised to allow blind users to operate the elevator; many have Braille text besides. Buttons include: Call buttons to choose a floor. Some of these may be key switches (to control access).

6. California - Wikipedia

   en.wikipedia.org/wiki/California

   [174] [179] According to the U.S. Census Bureau, between 2021 and 2022, 818,000 California residents moved out of state [180] with emigrants listing high cost of living, [181] high taxes, [182] [183] and a difficult business environment as the motivation. [183] The net loss of population in California between July 2020 and July 2023 was 433,000 ...

7. Grumman F-11 Tiger - Wikipedia

   en.wikipedia.org/wiki/Grumman_F-11_Tiger

   XF9F-9 prototype An F11F-1 Tiger on USS Independence (CVA-62), with downward-folded wingtips An early production "short nose" F11F and a later "long nose" from VT-23. The origins of the F11F (F-11) Tiger can be traced back to a privately funded 1952 Grumman concept to modernize and improve the F9F-6/7 Cougar, a popular early jet-powered carrier aircraft.