Check heat transfer surfaces for obstructions and keep clean. Check fan rotation and alignment. Keep fan lubricated per manufacturer's recommendations. Clean fan blades. Infrared Heaters Check and adjust beam direction when necessary.
Dust reflectors with a soft cloth.
Refrigeration Equipment and Chiller Keep heat exchanger surfaces clean. Check refrigerant level. Add more if air bubbles are present in the sight glass, or if the refrigerant flow is turbulent. Check for leaks in the suction and discharge lines. Keep liquid lines and strainer free of clogs.