Contractor must carry appropriate licenses as required by the state of North Carolina. Contractor shall have adequate and qualified staff in order to provide WCPSS with the service and/or response time requested. Contractor must be able to handle multiple calls at one time, respond on a 24 hour, 7 day basis, and will be expected to respond to emergency requests within 2 hours. Scope of work includes installation, maintenance, and repair of HVAC equipment such as air conditioning systems, air and water source heat pumps, heating systems, cooling towers, pumping systems and ventilation systems. Must be knowledgeable of mechanical/electrical schematics and be able to troubleshoot problems relating to these systems. Contractor will have procedures in place for working on these systems and employee training will be kept up to date as per contractors requirements. Contractor will utilize a Lockout/Tagout procedure when working on these systems. It is the responsibility of the Contractor to dispose of any unusable refrigerant and refrigerant oils as per EPA, state and other local regulations. Contractor shall be responsible for any required permitting and incidental supplies or hardware in order to perform any job tasks. Any viable parts removed from HVAC equipment during assigned work shall either be reinstalled in the equipment or returned to WCPSS.