Specifications include, but are not limited to: The successful proposer will provide all labor, supervision, equipment, parts and supplies for HVAC maintenance, repair, and/or installation services at various CHA locations. 2. DELIVERY OF SERVICES: a. Perform routine preventative maintenance inspections twice a year – April and October; First week in April for air conditioning and first week in October for heating. Filter changes will be included in this service. b. Perform two additional filter changes in the months between the preventative maintenance inspections listed above. c. CHA expects the Proposer to give priority service to any call for HVAC maintenance services and/or repairs. Response time must be stated in the response. d. Services will be performed in a variety of locations including administrative offices, hirises and single family homes. 3. PREVENTATIVE MAINTENANCE: Preventative maintenance services will include complete service checks and semi-annual cleaning at the beginning of the heating and cooling seasons. A full report of each unit addressing any concerns or issues will be provided upon the completion of the inspection. The following maintenance checks will be provided on the equipment: • Adjust and clean burner assembly • Clean ignition assembly • Clean heat elements or heat exchanger • Check flue draft • Adjust operating pressure • Monitor starting capabilities • Test safety controls • Tighten electrical connections • Measure amperage and voltage on all motors and compressors • Lubricate all moving parts • Adjust thermostat calibration • Clean evaporator coil if accessible • Clean condenser drain • Measure temperature across condenser coil • Repair leaks and add Freon as needed – Freon is not included in this bid and must be priced separately.