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2. Thermal expansion valve - Wikipedia

   en.wikipedia.org/wiki/Thermal_expansion_valve

   A thermal expansion valve is a key element to a heat pump; this is the cycle that makes air conditioning, or air cooling, possible.A basic refrigeration cycle consists of four major elements: a compressor, a condenser, a metering device and an evaporator.

3. Damper (flow) - Wikipedia

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

   An opposed-blade, motor-closed, motor-opened zone damper. The damper is shown in the "open" position. Close-up of the motor connections. This damper can switch the electrical power to control additional "slave" dampers, minimizing the electrical load on the damper's control circuitry and power transformer

4. Air handler - Wikipedia

   en.wikipedia.org/wiki/Air_handler

   Electric resistance heaters and heat pumps can be used as well. Evaporative cooling is possible in dry climates. Indirect coils use hot water or steam for heating, and chilled water or glycol for cooling (prime energy for heating and air conditioning is provided by central plant elsewhere in the building).

5. NYT ‘Connections’ Hints and Answers Today, Tuesday, January 7

   www.aol.com/nyt-connections-hints-answers-today...

   Read no further until you really want some clues or you've completely given up and want the answers ASAP. Get ready for all of today's NYT 'Connections’ hints and answers for #576 on Tuesday ...

6. Actuator - Wikipedia

   en.wikipedia.org/wiki/Actuator

   An actuator is a component of a machine that produces force, torque, or displacement, when an electrical, pneumatic or hydraulic input is supplied to it in a system (called an actuating system). The effect is usually produced in a controlled way. [1] An actuator translates such an input signal into the required form of mechanical energy.

7. Gwyneth Paltrow Whips Up One of Her ‘#BoyfriendBreakfasts ...

   www.aol.com/gwyneth-paltrow-whips-one-her...

   Gwyneth Paltrow is cooking up a tasty breakfast for Brad Falchuk!. On Monday, Dec. 16, the Oscar winner, 52, posted a video on Instagram of her making one of her viral “boyfriend breakfasts ...