The meaning of the Acronym PTCS is...

PTCS is

• Payload Module Thermal Control Subsystem
• Propellant Tanking Computer System
• Planning, Training, and Checkout System
• Payload Test and Checkout System
• Passive Thermal Control System
• Passive Thermal Control Section

More Meanings For PTCS:

• Primary Test Of Cognitive Skills
• Part Time Claim System
• Performance Tested Comfort System
• Performance Tested Comfort Systems
• Payload Test And Checkout System
• Payload Module Thermal Control Subsystem
• Propellant Tanking Computer System
• Planning, Training, and Checkout System
• Payload Test and Checkout System
• Passive Thermal Control System
• Passive Thermal Control Section

PTCS is also in:

• NASA
• Unfiled