Specifications include, but are not limited to: aintenance Check List i. Air Handling Equipment: (Air handlers, Roof Top Units, Heat Pumps) Perform Preventative Maintenance Service Quarterly, Semi Annually and Annually per schedule attachment appendix A. a. Check magnetic starters for voltage drop across contact point and note any variance from line voltage. b. Check operation of the control circuit. c. Check and tighten electrical connections. d. Lubricate the fan motor using care not to over lubricate bearings. e. Check bearings and shafts or any sign of wear. f. Check and adjust belts and pulleys paying particular attention to signs of unusual wear or deterioration of the belts. g. Replace belts as needed, but at least annually. h. Check mounting bolts. i. Check and record blower motor amps run. j. Check and record exhaust-return motor amps run. k. Inspect and clean as necessary of heating coils. l. Inspect and verify operation of return, supply, and outside air dampers m. Inspect fan blades and rotating components for any sign of wear, damage, or metal fatigue. n. Change filters per schedule attachment Appendix A. o. Check frequency drive for cleanness and abnormal noises. p. Check the Delta T on the unit during the cooling cycle. II. Fans (Exhaust, Relief, Supply, Return, etc.) Perform Preventative Maintenance Service Quarterly, Semi Annually and Annually per schedule attachment appendix A. a. Inspect fan blade and rotating components for any signs of wear. b. Check alignment of sleeves and pulleys. c. Inspect blower for cleanliness. d. Inspect bearings for any sign of wear and remove excess lubricant. e. Check all fan safeties and interlocks and verify their operation. f. Verify function of limit switches. (e.g., high limit and high static pressure switches, etc.) g. Check static pressure controller for operation and note duct static pressure. h. Check alignment of fans/blower assembly shroud etc. Note any sign of metal fatigue or deterioration. i. Inspect all related ducting and duct connectors. Assess vibrating isolation boots and note any rips, tears or problems with these transitions. j. Lubricate fan bearings per manufacturer’s recommendations. k. Remove any debris located in fan chamber or plenum area. l. Note any safety concerns; inspect safety screen, pulley and belt covers. Note any sign of fatigue or deterioration. m. Inspect blower motors and lubricate when necessary. III. Unit Heaters (Gas, or Electric) Perform Preventative Maintenance Service Quarterly, Semi Annually and Annually per schedule attachment appendix A. a. Inspect gas piping. b. Check operating controls, limits, etc. c. Inspect burners, check for any signs of deterioration. d. Check fan bearings for any signs of wear. Lubricate fan and motors as per manufacturer recommendations. e. Clean any flame sensing devices at least once a year. f. Check the heat exchanger for signs of deterioration. g. Inspect exhaust piping for proper installation, and operation. Check for any leakage, or deterioration. h. Check gas train for leaks.
