[TRNSYS-users] Type 15-6 weather data reader

[C K Lee <a8304506@graduate.hku.hk>]

Dear all.

I find that in Type 15-6, there is a output "precipitable water".  Is it 
the rainfall level?  If so, what is the unit for this output?  When I 
try to use the standard .TM2 weather file for Hong Kong provided by 
TRNSYS, it gives a non-zero value all year around for that output which 
seems to be unreasonable.  Can anyone advise what does that output mean? 
 Thank you!

Best Regards
Chun Kwong LEE
City University of Hong Kong