Fan

Description	Note	Maintenance frequency	Implementation
Use/adjustment of the fans' operational order	Turn off/ adjust the operational order of unnecessary fans	Daily	Yes
Overall visual inspection	Complete the overall visual inspection to ensure that all equipment are in good working conditions and safety systems are in the right place	Daily	Yes
Check the belts	Check for proper belt tension and straightness	Monthly	Yes
Check the pulleys	Clean and lubricate necessary points	Monthly	Yes
Check the expansion valve	Determine an appropriate and complete opening and closing method; External air expansion valve should be airtight when being closed	Monthly	Yes
Observe the actuators/control their interconnections	Check the operation, clean, lubricate, adjust when needed	Monthly	Yes
Check the fan blades	Confirm the proper rotation and clean the blades when necessary	Monthly	Yes
Filter	Check the clearance, replace when being dirty on monthly basis	Monthly	Yes
Check the air quality based on the irregularities	Check for signs of moisture/mold on the walls, ceilings, carpets, and the inside/outside of the ducting system. Check for any fug and listen for any unusual sound.	Monthly	Yes
Check the electric cable system	Confirm that all electrical connections are tight	Annually	Yes
Check the ducting system	Check and tighten all loose connections, fix all leaking points	Annually	Yes
Coil	Confirm that keeping filters clean is needed	Annually	Yes
Insulation	Check, repair, and replace all damaged insulation locations	Annually	Yes

Checklist