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2. Automotive air conditioning - Wikipedia

   en.wikipedia.org/wiki/Automotive_air_conditioning

   Because the carbon dioxide used in car air conditioning is a recycled industrial waste product, it is an environmentally neutral solution. The Alliance claims that using a CO 2-based air conditioning system will reduce total car emissions by 10%, thereby sparing the planet 1% of total greenhouse gases. [citation needed]

3. HVAC control system - Wikipedia

   en.wikipedia.org/wiki/HVAC_control_system

   HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be taken (e.g. start the ...

4. Aluminum building wiring - Wikipedia

   en.wikipedia.org/wiki/Aluminum_building_wiring

   Also, larger aluminum stranded building wire made with AA-8000 series alloy of aluminum is used for electrical services (e.g. service entrance conductors from the utility connection to the service breaker panel) and for larger branch circuits such as for sub-panels, ranges, clothes dryers and air-conditioning units.

5. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]

6. 3 Winter Sleep Problems & How to Fix Them - AOL

   www.aol.com/3-winter-sleep-problems-fix...

   Winter air is notoriously dry, and that can leave you pretty uncomfortable. Think: dry skin, dry eyes, dry nostrils, dry throat. On top of that, the dry air makes it easier for you to get sick ...

7. Here's the Typical Net Worth for Your Income - AOL

   www.aol.com/heres-typical-net-worth-income...

   Percentile Group. 25th Percentile. 50th Percentile. 75th Percentile. 90th Percentile. 99th Percentile. Income Range. $31,346 to $43,236. $62,693 to $79,987. $115,658 ...

8. Trump goes to bat for Tulsi Gabbard amid scrutiny for top ...

   www.aol.com/trump-goes-bat-tulsi-gabbard...

   Tulsi Gabbard, Trump’s choice to be the top intelligence official, began meeting with key lawmakers this week as other Cabinet picks returned to the Capitol.

9. 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.