Heating coil questions
Heating coil questions
(OP)
This is the first time I will design heating coil since most of the project I design don't need heating.
When I do cooling coil selection - I used psychrometric chart to select the coil in/out condition (computing mix air, use 55f supply air, 7c 12c chilled water entering & leaving, etc). I guess this how you do in selecting heating coil selection except the supply air is roughly at 100f...is there any special computation I need to know for mix Air (or its the same computation as with cooling coil)?....what's the normal or recommended hot water in/out temp?
Also are you guys using psychrometric too when you do heating? In cooling I used psych chart a lot.
When I do cooling coil selection - I used psychrometric chart to select the coil in/out condition (computing mix air, use 55f supply air, 7c 12c chilled water entering & leaving, etc). I guess this how you do in selecting heating coil selection except the supply air is roughly at 100f...is there any special computation I need to know for mix Air (or its the same computation as with cooling coil)?....what's the normal or recommended hot water in/out temp?
Also are you guys using psychrometric too when you do heating? In cooling I used psych chart a lot.





RE: Heating coil questions
However since you have mixed metric and imperial units I'm not going to attempt to work them out.
If you're comfortable working with a psychrometric chart for cooling go right ahead and use it for heating too. Everything works the same.
RE: Heating coil questions
RE: Heating coil questions
RE: Heating coil questions
Thanks