Annual Tasking ( 1. Shut down unit following Multistack procedures; lockout/tagout electrical… and 1 more item

The Virginia Department of Forensic Science awarded contract PO05488744 to Hobbs & Associates Inc. on October 3, 2026, with a cumulative value of $8,480.00. The contract encompasses maintenance services for a Multistack chiller unit, with deliverables directed to Trip Roberson. The contract includes one annual tasking line item valued at $2,120.00, which requires comprehensive annual maintenance including unit shutdown following lockout/tagout procedures, cleaning of heat exchangers and strainers, inspection of electrical components (contactors, fuses, and relays), verification of superheat and pressure readings, inspection of the Master Controller and sensors, refrigerant charge and leak inspection, compressor inspection, and return to service with documented final readings.

The contract additionally specifies preventative maintenance through quarterly tasking consisting of three services per year, each valued at $2,120.00, totaling $6,360.00. The quarterly maintenance includes operational checks of refrigerant pressures and temperatures, superheat and subcooling verification, sensor and electrical component inspection, detailed electrical review with terminal connection and calibration verification, compressor amp draw analysis, refrigerant circuit operation verification, strainer inspection, and evaluation of condenser and evaporator approach temperatures for fouling. Combined, the annual and quarterly tasking line items constitute the full scope of refrigeration equipment maintenance services under this contract award.