Hainan Academic Conference of HVAC in Haikou Hainan was held on December 17, 2020. Experts from Hainan, Guangdong, Guangxi, and Fujian attended the meeting. The topic is about differences in meteorological conditions and regional development needs in summer and winter. Accessen was part of the conference. Our products like the integrated cold station, the God of fire series standardized heat exchange skid designed for such application. Like Canton Tower, Guangzhou Opera House, our case story attractive to many experts and was positively accepted.