Actual store data
The picture shows the hot gas defrost header lines, from which all the dedicated lines depart to the cabinets and coldrooms connected to the hot gas system.
The graph shows the trend of the gas cooler and receiver pressure over a period of several months. The key takeaway is the stability of receiver pressure and, hence, liquid delivery, including defrost ON/OFF switches.
The graph shows the trend of discharge air temperature on a selected cabinet, which stays well below 41°F as per NFS specifications also during defrost phase, demonstrating the effectiveness of the hot gas defrost system