This HVAC preventive maintenance checklist supports major summer pre season servicing for Zones 1 and 2. It guides technicians through inspections of packaged AC and heat pump units, gas packs, chillers, boilers, water source heat pumps and cooling towers. Tasks include cabinet and wiring checks, refrigerant and oil leak inspections, economizer verification, linkage lubrication, condenser and evaporator coil cleaning, belt replacement and tensioning, drain pan and trap cleaning, thermostat accuracy, sensor verification, compressor and fan operation, recording amperage, suction and discharge pressures, and safety device tests. It also covers VFD checks, VAV and fan powered unit inspections, TXV bulb security, MERV 8 and LEED required MERV 13 filter replacement, heat exchanger and defrost cycle checks, auxiliary heat, pump inspections and verification of overall sequence of operations.
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