QUARTERLY AIR CONDITIONING AND HEATING SYSTEM MAINTENANCE AND INSPECTION TASKS A. FOR CONDENSING UNIT(S) 1) Inspect air conditioning system for refrigerant and oil leaks. 2) Clean outdoor coil if dirty. Comb fins. 3) Chemically clean condenser and evaporator coils once per year. 4) Measure and record compressor amperage draw. 5) Measure and record suction and discharge pressures. 6) Measure and record suction superheat temperature. 7) Measure and record outdoor fan motor amperage draw. 8) Adjust refrigerant charge as needed. Add oil per manufacturer’s recommendations. 9) Lubricate outdoor fan motor (if applicable). 10)Inspect outdoor fan blade for cracks, corrosion and defects. Clean as necessary. 11)Inspect cabinet for organic matter, corrosion and defects. Clean as necessary. 12)Inspect compressor overloads, overheat, high and low- pressure safety devices. 13)Inspect and verify the operation of compressor crankcase heaters (if applicable). 14) Check all belts for wear, proper tension and alignment (if applicable). Replace worn or defective belts in sets. 15) Check all sheaves for alignment, wear and tightness on shafts (if applicable). Adjust misaligned sheaves as needed...
