6 Pneumatics
60    Installation of pneumatic systems Generation of compressed air
  Preparation of compressed air
  Distribution of compressed air
65    Relays and magnetic valves Various relays
  Magnetic valves
67    Individual-room control systems, VAV Room-temperature controller
  Duct-temperature controller
  VAV controller an transducer
  Room-pressure controller
68    centair controller system Universal controller
  Pressure gauge
69    Accessories e/p and p/e converters, restrictors
  Manual switches, control-pressure transmitters
  Pressure-reducing set, time-lag relays
  Test equipement, connecting pieces