The unit consists of fresh air entering an isolation damper before it reaches the first coil, labelled as the frost coil. There is a sensor downstream of this coil and it is set at 15 C. The steam control valve opens and closes to meet this setpoint. It then enters 2 filters in series before it...
We have been able to reduce the trip set point temporarily which I believe is the supply air (ambient, outside) temperature but what impact would this have on the system? Is it acceptable? How was -5 C derived?
I have noticed that the steam condensate lines are not sloped so therefore I can...
We have an AHU consisting of 2 steam coils, air filters and a fan supplying warm air into a lab. The steam supply is 2 bar.
It sits outside.
The original design is such that it trips out at -5 C (supply air).
We have been having colder winters which means that the system trips out more often...
