Specifications include, but are not limited to: 3.1 Contractor shall provide documentation on all freon additions and new system installations in order to keep record.; 3.2 If an HVAC system will be out of service for more than 4 hours due to the non-availability of a part or extended time needed for repair, the Contractor shall immediately call the City of Laredo representative who assigned the work and inform him/her of the situation and estimated time of completion and make recommendations to restore the service temporarily so as to minimize impact to the residents or staff.; 3.3 Contractor's vehicles used to respond to calls for service shall be stocked with commonly used HVAC supplies and equipment to eliminate delays and/or interruptions in service.; 3.4 Some HVAC Systems may be on rooftops and may require the use of a crane.; 3.5 HVAC equipment, cold storage units, mini-split and any other A/C Units: Maintenance and Repair services shall be all inclusive and shall be a firm fixed price. Quarterly and Annual maintenance, preventative maintenance and routine inspections shall include but not be limited to: 3.5.1 System and equipment inspections; 3.5.2 Check operating and safety controls; 3.5.3 Check operation of crankcase heaters; 3.5.4 Check compressor oil levels; 3.5.5 Visually inspect for oil & refrigerant leaks. The following materials and labor necessary to perform the following: 3.5.6 Clean Condenser Coil; 3.5.7 Visual inspection of evaporator; 3.5.8 Replace all return filters; 3.5.9 Flush out drain lines; 3.5.10 Check all electrical components; 3.5.11 Oil all motor; 3.5.12 Check belts for evaporator motor; 3.5.13 Check amperage on motors and compressor; 3.5.14 Check Freon levels; 3.5.15 Check Comfort Link for proper programming; 3.5.16 Check or Re-program Comfort Link any alarms; 3.5.17 Run system and check for proper operation.