Specifications include, but are not limited to: Vendors interested in assisting the City with different HVAC needs for our City buildings and properties. Our desire is to award a vendor as the preferred provider for all our day-to-day HVAC needs. The estimated annual hours needed are 250-300 hours, subject to change depending on the projects and need. The work will include but not limited to installing, maintaining and repairing ventilation and air conditioning systems and equipment. Identifying maintenance risks on equipment. Diagnosing electrical and mechanical faults for HVAC systems. Cleaning, adjusting and repairing systems, and performing warranty services. Performing emergency repairs promptly and efficiently. Ensuring compliance with appliance standards and with Occupational Health and Safety Act. Complying with service standards, work instructions and customers' requirements. Understands and has mastered the refrigeration cycles to include: identifying components in advanced refrigeration circuits, understanding how each component works, diagnosing and correcting problems in the refrigeration circuit, using manifold gauge set, pressure/temperature chart and temperature measuring devices for routine maintenance and to troubleshoot. Understands refrigeration recovery, evacuation and charging, understands the installation and sizing of refrigerant piping. Understands and has mastered the heating cycle to include: identifying components in heating system, understanding how each component works, diagnosing problems in the heating system using a gas pressure test and other devices for routine maintenance and to troubleshoot and repair.