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2. Multiway switching - Wikipedia

   en.wikipedia.org/wiki/Multiway_switching

   In building wiring, multiway switching is the interconnection of two or more electrical switches to control an electrical load from more than one location.A common application is in lighting, where it allows the control of lamps from multiple locations, for example in a hallway, stairwell, or large room.

3. List of Honeywell products and services - Wikipedia

   en.wikipedia.org/wiki/List_of_Honeywell_products...

   Honeywell Excel Series [45] Honeywell's Smart Home Security Starter Kit [46] Honeywell Guest Room Control [47] Honeywell Public Address and Voice Alarm (PAVA) products [48] Honeywell Pulse for Connected Buildings [49] Honeywell SymmetrE [50] Honeywell Vector Occupant App [51] Honeywell WEBs N4 - Niagara [52] Honeywell WEBs-EXP (Energy Expert) [53]

4. Zone valve - Wikipedia

   en.wikipedia.org/wiki/Zone_valve

   For vacuum- or pneumatically operated zone valves, the thermostat usually switches the pressure or vacuum on or off, causing a spring-loaded rubber diaphragm or ball valve to move and actuate the valve. [2] Unlike the switch-monitored electrical zone valves, these valves automatically return to the default position without the application of ...

5. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   The control circuit in a household HVAC installation. The wires connecting to the blue terminal block on the upper-right of the board lead to the thermostat. The fan enclosure is directly behind the board, and the filters can be seen at the top. The safety interlock switch is at the bottom left.

6. Dog Trainer Explains How to Tell if Your Dog Is Too Cold ...

   www.aol.com/dog-trainer-explains-tell-dog...

   Follow us on YouTube for more entertaining videos. Or, share your own adorable pet by submitting a video, and sign up for our newsletter for the latest pet updates and tips. Show comments.

7. Brown snow fell in a Maine town. Here's what officials say ...

   www.aol.com/brown-snow-fell-maine-town-234035621...

   Brown snow fell in the Maine town of Rumford after a malfunction at a paper mill caused the release of spent black liquor.

8. What Is Zone 2 Training & How It Can Support Weight Loss? - AOL

   www.aol.com/zone-2-training-support-weight...

   This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. Zone 2 training is a type of cardio exercise where you use your heart rate as a guide to help you find the right intensity for ...

9. Mercury switch - Wikipedia

   en.wikipedia.org/wiki/Mercury_switch

   From around 1905 to 1910 various mercury switches were invented, but the "mercury in glass envelope" switch got its start with patent 1598874 (filed on January 19, 1922 by Louis Phelan), [1] which evolved into a more modern mercury switch with a straight tubular glass envelope via patent 2232626 (filed on October 7, 1937 by Harold Olson of Honeywell).