I have to select AHU that maintains plus minus 18 Centigrade temp in an area.... I only know following parameter:
RH = 60%
Chilled water in= 7 C
Ambient temp 38 C
Capacity/load = 20 USRT
External static pressure = 1.2 inch of water
Supply air flow i assumed per person 400 CFM

I want to select vertical type AHU, can any body help me in this regard?