Maintenance and Repair 1. Diagnose and repair malfunctions in various types of heating and air conditioning systems (residential and/or commercial units). Repair, replace, or calibrate controls including thermostats and switches. 2. Install new heating and air conditioning systems and components and relocate and expand existing HVAC systems as needed. Fabricate, assemble, and install duct work and piping according to code specifications and connect motors, compressors, temperature controls, and humidity controls according to wiring schematics. 3. Maintain preventive maintenance schedules and procedures for all HVAC equipment, including changing of filters and cleaning condensers and coils. Perform duct cleaning and air quality testing as needed. 4. Receive and complete work orders. Select materials and hardware, make time and materials cost estimates, and maintain accurate records on material and labor used. 5. Inspect jobs upon completion and ensure areas are clean. 6. Maintain inventory of district-owned tools, equipment, and materials including maintaining coolant dispensing records to meet federal requirements. 7. Assist energy manager to complete energy conservation surveys to realize most efficient, cost-effective use of HVAC energy. 8. Respond to emergency calls as needed. 9. Possibly work adjusted schedule to meet work load demands. 10. Be available to subordinates to assist in solving problems, both occupational and professional. 11. Attend training classes and seminars as directed. 12. Follow District Policy, Administration Guidelines, and Employee Handbook/Supplement directives. 13. Perform other duties as assigned. Safety 14. Perform preventive maintenance on tools and equipment and ensure that equipment is in safe operating condition. 15. Follow established safety procedures and techniques to perform job duties including lifting and climbing. Operate tools and equipment according to established safety procedures. 16. Correct unsafe conditions in work area and promptly report any conditions that are not immediately correctable to supervisor.