9
water heating and distribution systems, consisting basically of pipes, reservoirs, valves, pumps, cocks and gates, cooling and chilling systems for building services and industrial purposes as well as control devices and parts thereof for said systems; con-trolled and uncontrolled electrically or mechanically driven circulator devices, mixer, flow limiting de-vices and pressure reduction devices; steam, hot wa-ter and thermal oil heated heat exchangers; measur-ing, monitoring and control apparatus, in particular sensors and control instruments, temperature con-trols, pressure controls, level controls, humidity controls, program controls, thermostats, pressure switches as well as optimization processors for moni-toring and control purposes
11
Control circuit for building services systems and; industrial production plants, consisting of a combi-nation of steam, hot water and thermal oil heated heat exchangers; measuring, monitoring and control apparatus, in particular sensors and control instru-ments, temperature controls, pressure controls, level controls, humidity controls, program controls, ther-mostats, pressure switches as well as optimization processors for monitoring and control purposes
37
Installing and assembly of water heating and distribution systems, of heating, ventilating and cooling systems as well as other chilling systems for building services and industrial purposes, of control circuits for aforementioned systems as well as of district heating supply systems including house connection units
42
Planning of water heating and distribution systems, of heating, ventilating and cooling systems as well as other chilling systems for building services and industrial purposes, of control circuits for aforementioned systems as well as of district heating supply systems including house connection units