While the condenser and heater are installed, the thermal control discipline shall accomplish the following work: 

1. When the copper is through the condenser or the heater core is inspected, the holes on the tapping parts of temperature, pressure, water level etc. must be opened well and in the same time, the temperature, pressure, water outlet and the tapping shall be well installed. 

2. Before the condenser and heater are watered for leakage  test, the pipe from the pressure water level tapping valve to the instrument valves must be installed, and must be tested for leakage together. The plug-in temperature measuring device must be installed.