Revised Standard from Last Update.

1. SCOPE

This standard specifies the outdoor (temperature and humidity) design conditions for air conditioning and heating or internationally accepted format, explained hereunder:

a) Dry bulb (DB) temperature corresponding to 0.4 percent, 1 percent, and 2 percent annual cumulative frequency of occurrence and the mean coincidental wet bulb temperature (MCWB) (Summer - Cooling DB/MCWB);

b) Wet bulb (WB) temperature corresponding to 0.4 percent, 1 percent, and 2 percent annual cumulative frequency of occurrence and the mean coincidental dry bulb temperature (Monsoon - Cooling WB/MCDB); and

c) Dry bulb (DB) temperature corresponding to 99.6 percent and 99 percent annual cumulative frequency of occurrence and the mean coincidental wet bulb temperature (Winter - Heating DB/ MCWB).

2. REFERENCES

The standard given below contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of this standard:

IS 3615 : 2020 Glossary of terms used in refrigeration and air conditioning (second revision)