Ascension Property Services, based in Palo Alto, CA, seeks an HVAC Commercial Service Technician to support critical cooling and environmental systems for its high-density IT and software facilities. In this role, you will install, troubleshoot, and maintain commercial HVAC, CRAC/CRAH, and related building automation systems ensuring optimal uptime for data and office environments. You'll perform diagnostics, repairs, and preventative maintenance, interpret technical schematics, and document service activities. Collaborate closely with IT and facilities teams, adhere to safety and regulatory standards, and support continuous improvement in energy efficiency and reliability. Responsibilities Install, troubleshoot, and repair commercial HVAC systems in office and IT environments Maintain and service

CRAC/CRAH

units and related cooling infrastructure Perform preventative maintenance and inspections on HVAC and controls equipment Diagnose mechanical, electrical, and controls issues using tools and schematics Collaborate with IT and facilities teams to support environmental requirements Document service activities, parts usage, and system status accurately Ensure compliance with safety standards, codes, and environmental regulations Support energy-efficiency improvements and system optimization initiatives Respond to service calls and participate in an on-call rotation as needed Communicate clearly with internal stakeholders regarding work status and issues Required Skills Commercial HVAC installation and service CRAC/CRAH and IT cooling systems Refrigeration cycle diagnostics Electrical and mechanical troubleshooting Building automation systems (BAS) Reading blueprints and schematics Preventative maintenance planning HVAC tools and test equipment usage Safety and regulatory compliance Service documentation and work order systems