ASHRAE Winter, Summer Design Temperatures

In this video we show:
-How to obtain the Outdoor design temperature from ASHRAE (For Summer and Winter)
-Which other sources to find Outdoor Design Temperatures. (Manual J, Energy Star and ASHRAE)
-Online tool to obtain weather locations around the world

Links:

ASHRAE Weather

ENERGY STAR: Weather data for (US Only) based on state and county

MANUAL J Table 1A: Weather data

‘Coconuts’ by ‘Beau Walker’

[danielthomas]

Thank you so much bro. My collegue isnt helping. I found this very helpful. I am having an electrical background and i ended up doing hvac too. And its a highly competitve political environment.your videos are saving me from embarrassment.

[durgab.k.]

Thanks for the video. I want to know how do we consider temperature variation, say for next 50-60 years?

[missmango-fuvt]

Thank you for this video, I found it very useful. Where did you find the values for indoor conditions (70, 75, 50%)? Are these general values or are they location specific?

[FourthWayRanch]

how can I tell if we're allowed to put water pipes in outside wall and attic in my area? if the 99% heating temp is above 32 degrees ??

[golamnur]

Hello Mr.HVAC Easy Math, I found your video very informative. You explain everything most funniest way. Mean coincident dry bulb(MCDB), Mean coincident wet Bulb why ASHRAE mention like this not simply Dry Bulb, Wet Bulb temperature .Waiting for your prompt response.

[lynacharifi]

Hello, I have another question please. In the 'Extreme Annual Design Conditions' section, for example: For a 5-year return period, the extreme minimum dry-bulb temperature could reach -26.4°C. Does this mean that every 5 years, it is possible for the temperature to drop to -26.4°C for a period of 1/5, but I am confused about what this '1' represents. Does it mean 1 hour or 1 day every 5 years that the temperature could reach -26.4°C?

[sujeet]

Hello,

Will you please explain from where we can find daily range ?

[ravikumar]

Sir plzz tell how can select another value wb if i choose heating only db value are here

[KebbyLL]

I usually use .4% Evap conditions for 100% OA unit, but which design conditions is more suitable for RTU that has RA. Maybe Dehum?

[srikanthsahoo]

How to select daily temperature range in that website?

[lynacharifi]

EN:
Hello, thank you for this very simply explained video.
I have a question: in winter, when you say that there's a 99% chance that the temperature will be above this figure, you're referring to (as an example) :
DB = -19.1°C (99%) so if I understand correctly there is a 99% chance that my temperature will be above -19.1°c. So it will be colder than that (the figure is negative).
For example, if my dry bulb temperature is DB = 11°C in winter. So there's a 99% chance that my figure is above 11°C? in which case it will be warmer than 11°C! I don't understand. Because the use of "above" has confused me.
As I understand it, I would have said 99% of the time it will be colder than the temperature displayed.
I have the impression that the signs (negative and positive) distort the "above" a little.

FR:
Bonjour, merci pour cette vidéo très simplement expliqué.
J'aurais une question, en hiver, lorsque vous dites qu'il y a 99% de chances que la température soit au dessus de ce chiffre, vous faites référence à (comme exemple) :
DB = -19.1°C (99%) donc si je comprends bien il y a 99% de probabilité que ma température soit supérieure à -19.1°c. Donc il fera plus froid que ça (le chiffre est négatif).
autre exemple, si j'ai une température sèche de DB = 11°C en hiver. Donc il y a 99% de chance que mon chiffre soit au dessus de 11°C? dans ce cas cas là il fera plus chaud que 11°C! je ne comprends pas. Car le fait d'employer "au dessus" m'a mélangé.
Pour moi, selon ma compréhension, j'aurais dis 99% du temps il fera plus froid que la température affichée.
J'ai l'impression que les signes (négatifs et positifs) faussent un peu le "au-dessus".

[shortreels]

from where to purchase this software ? plz guide me . send a link

[ravikumar]

Plz tell another 2nd value for calculating all parameters becoz only heating DB