Attachment_3_OLYM_2025_HVAC_Report.pdf

This is a Detailed Maintenance Report documenting HVAC PM and HVAC Replacement services performed on 08/25/2025 and 08/26/2025 at National Park Service facilities (Job No. 140P8325Q0029). The report presents comprehensive inspection and maintenance data for 66 individual HVAC assets across multiple equipment categories.

The maintenance assessment covers Electric Furnaces (15 units), Heat Pump Split Condensers (17 units), Ductless Fan Coils (16 units), Ductless HP Outdoor Units (13 units), VRF Indoor Units (5 units), VRF Condensing Units (1 unit), Electric Duct Heaters (1 unit), AHU equipment (1 unit), and Boiler/Hot Water systems (1 unit). Test readings include filter cleaning/replacement verification, blower operation confirmation, motor amp draws, heat strip amperage, supply/return air temperatures, coil cleaning, compressor operation verification, refrigerant charge assessment, and electrical connection integrity. Of the 66 units inspected, 38 passed inspection while 28 failed, with failures attributed to issues including refrigerant leaks, compressor failures, crankcase heater malfunctions, corrosion, defrost board failures, low refrigerant charge, condensate pump issues, thermostat failures, and system age/obsolescence. Notable recommendations include full system replacements for aging R-22 units, deep cleaning requirements for VRF indoor units in high-salt environments, contractor oversight for boiler carbon buildup, and various component replacements for failed equipment.