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【HVAC Version】Daily Question 20180517

2018-05-17 View Original

Thread Content

Is the outdoor design temperature for air conditioning in winter the same as that for heating? Why? Answer: Different. For winter, the outdoor calculation temperature for air conditioning is based on the annual average daily average temperature over a period of days for which coverage is not guaranteed, while the outdoor calculation temperature for heating is based on the annual average daily average temperature over a period of 5 days for which coverage is not guaranteed.
Reply #2 2018-05-17
Different. For winter air conditioning, the outdoor design temperature is based on the annual average daily average temperature over a period of days for which no guarantee is provided; for heating, the outdoor design temperature is based on the annual average daily average temperature in winter over a period of days for which no guarantee is provided.
Reply #3 2018-05-17
They are not the same. For winter, the outdoor calculation temperature for air conditioning is based on the annual average daily average temperature over a period of days for which coverage is not guaranteed, while the outdoor calculation temperature for heating is based on the annual average daily average temperature over a period of 5 days for which coverage is not guaranteed.
Reply #4 2018-05-17
They are not the same. For winter, the outdoor calculation temperature for air conditioning is based on the annual average daily average temperature over a period of days for which coverage is not guaranteed, while the outdoor calculation temperature for heating is based on the annual average daily average temperature over a period of 5 days for which coverage is not guaranteed.
Reply #5 2018-05-17
They are not the same. For winter, the outdoor calculation temperature for air conditioning is based on the annual average daily average temperature over a period of days for which coverage is not guaranteed, while the outdoor calculation temperature for heating is based on the annual average daily average temperature over a period of 5 days for which coverage is not guaranteed.
Reply #6 2018-05-17
They are not the same. For winter, the outdoor calculation temperature for air conditioning is based on the annual average daily average temperature over a period of days for which coverage is not guaranteed, while the outdoor calculation temperature for heating is based on the annual average daily average temperature over a period of 5 days for which coverage is not guaranteed.
Reply #7 2018-05-17
They are not the same. For winter, the outdoor calculation temperature for air conditioning is based on the annual average daily average temperature over a period of days for which coverage is not guaranteed, while the outdoor calculation temperature for heating is based on the annual average daily average temperature over a period of 5 days for which coverage is not guaranteed.
Reply #8 2018-05-17
They are not the same. For winter, the outdoor calculation temperature for air conditioning is based on the annual average daily average temperature over a period of days for which coverage is not guaranteed, while the outdoor calculation temperature for heating is based on the annual average daily average temperature over a period of 5 days for which coverage is not guaranteed.
Reply #9 2018-05-17
They are not the same. For winter, the outdoor calculation temperature for air conditioning is based on the annual average daily average temperature over a period of days for which coverage is not guaranteed, while the outdoor calculation temperature for heating is based on the annual average daily average temperature over a period of 5 days for which coverage is not guaranteed.
Reply #10 2018-05-18
They are not the same. For winter, the outdoor calculation temperature for air conditioning is based on the annual average daily average temperature over a period of days for which coverage is not guaranteed, while the outdoor calculation temperature for heating is based on the annual average daily average temperature over a period of 5 days for which coverage is not guaranteed.
Reply #11 2018-05-18
They are not the same. For winter, the outdoor calculation temperature for air conditioning is based on the annual average daily average temperature over a period of days for which coverage is not guaranteed, while the outdoor calculation temperature for heating is based on the annual average daily average temperature over a period of 5 days for which coverage is not guaranteed.

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