Specifications include, but are not limited to: 1.Evaluate, clean and tune (ECT) heating/cooling equipment per ANSI/ACCA Standard 4 (Maintenance of Residential HVAC Systems) and North Carolina Weatherization Assistance Program Guidelines, providing full documentation of tests performed, conditions observed and recommended actions. a.Evaluation should include a visual inspection of existing ductwork, and, if applicable, notifying the Contractor of any deficiencies noted. b.Evaluation should include combustion and safety testing, if applicable. c.Conduct minor repairs to the heating/cooling system as determined by the ECT. For the purposes of this agreement, minor repairs are defined those repairs that and may be performed by Subcontractor performing the ECT service at the time of the initial service at no additional cost. d.Specify any additional work needed by electrician and/or plumber to achieve efficient, safe and code compliant operation of the unit. Any electrical and/or plumbing services must be separately contracted with by the Contractor; if the Subcontractor has a preference for a specific electrical or plumbing service provider, he/she may submit that request to the Contractor. e.Follow procedures for servicing, repairing, and disposing of any and all refrigerant‐containing devices, units, and systems as outlined by federal, state, and local laws and regulations now in effect or hereinafter enacted which pertain to the Federal Clean Air Act of 1990. f.Remove any and all non‐functioning equipment and parts associated with system, including obsolete ductwork, unless otherwise specified by the Contractor. 2.Replace non‐functioning HVAC equipment with equipment of comparable size and type according to Manual J calculations and having an efficiency rating meeting or exceeding Section 7610 of the NC Weatherization Installation Standards. New System must use the same fuel type (oil, propane, electric, etc) as the existing system unless prior approval is granted by Contractor to convert fuel type. If provided, the air filters for the new system shall be rated at MERV 6. Installation must meet ANSI/ACCA Standard 5 (Installation of Residential HVAC Systems) and North Carolina Weatherization Assistance Program Guidelines. a.Specify any additional work needed by electrician and/or plumber to achieve efficient, safe and code compliant operation of the unit. Any electrical and/or plumbing services must be separately contracted with by the Contractor; if the Subcontractor has a preference for a specific electrical or plumbing service provider, he/she may submit that request to the Contractor.