rish916
1) Please don't use CAPITALS - it means you're shouting
2) Probably better in the HVAC forum
3) We need a LOT more information ( flow, ambient air temp, what "reference" means...)
4) Please do a little research first - refrigeration / HVAC works in tons of refrigeration - just google it
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.