Process-water control and instrument center

The instrument panel is composed of seven 4-ft-wide by 9-ft-high adjacent sections arranged in three straight lines. Two of these lines, one extending north and the other extending west, are each composed of three sections. The other section of panel connects with each of these lines at an angle of 45°. 

The control devices on the instrument panel are for effecting the position of valves to control the main and by-pass process-water flows to the reactor, to permit the recycling of process water from the seal tank to the reactor, and to permit the flow of water from the demineralized-water storage tank to the reactor. 

In general, the indicating and recording instruments on the panel are associated with the principal processes, i..e., the process-water and cooling-air systems of the reactor. Some of these instruments and a number of the annunciators are associated with the supporting processes and the effluent control systems. 

The development diagram of the instrument panel, Fig. 5.8.B, identifies briefly the more important control and instrument locations. 

Njf - full normal operating power level of the reactor. 

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