The main purposes of a HVAC Supply or Heating, Ventilation, and Air-Conditioning (HVAC) system are to help maintain good indoor air quality through adequate ventilation with filtration and provide thermal comfort. HVAC systems are among the largest energy consumers in schools. The choice and design of the HVAC system can also affect many other high performance goals, including water consumption (water cooled air conditioning equipment) and acoustics. Potential for Natural Ventilation and Operable Windows In some parts of the country, where temperature and humidity levels permit, natural ventilation through operable windows can be an effective and energy-efficient way to supplement HVAC supply to provide ...
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The main purposes of a HVAC Supply or Heating, Ventilation, and Air-Conditioning (HVAC) system are to help maintain good indoor air quality through adequate ventilation with filtration and provide thermal comfort. HVAC systems are among the largest energy consumers in schools. The choice and design of the HVAC system can also affect many other high performance goals, including water consumption (water cooled air conditioning equipment) and acoustics. Potential for Natural Ventilation and Operable Windows In some parts of the country, where temperature and humidity levels permit, natural ventilation through operable windows can be an effective and energy-efficient way to supplement HVAC supply to provide ...
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Say you have a room that has only a single light point or maybe a dining hall that you feel is not bright enough. You can always add in an additional light without too much trouble and you don’t even have to mess with the Main Switch Panel. Wiring Diagram 1- Shows you how the existing light point’s wire is typically installed. The live wire goes to the switch and the neutral wire to the existing light. In short you have everything that is needed to light up another light right here. The live and the neutral wire are what we need. Diagram 2 ...
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Previously I have written about how we go about doing the electrical layout for multiple light points using individual switches to control each light separately. However there are many instances where we want the convenience of switching on all the lights in certain part of our premises all at once. This is especially so when we are using down lights or flush-lights in our dining hall or living room. Most of the time we have at least 4 lights switched on together. This can be achieved by using one single gang switch for multiple lights. In cases like these we can lay the wires ...
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I guess lots of you still uses the old fashioned fan speed regulator like the one you see above. These speed regulators works with a copper coil as resistance to regulate the amount of current passing through to the fan. There is of course the speed dial ranging from 1 to 5 or sometimes 0 to 5 where 0 means it fan is switched off with no current passing through. 5 would mean all the current passes through offering no resistance at all. At speed level 5, the fan will be running at full speed. Anywhere in between 9 and 5 willoffer a different ...
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