KKT chillers vBoxX 10, Инструкция по эксплуатации

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3.14. Automatic water feed
Any leaks and evaporation during the course of the operation can reduce the required quantity of
cold water available for the chiller function. The Automatic water feed option makes it possible to
top up the cold water circuit automatically. The tank contents are monitored continuously and if
necessary additional water is fed in until it has reached the optimum level once again. The owner
(user) only has to connect the chiller to the building's water system via the feed connection (see
Figure 6 ) . The inlet pressure must lie between 1 bar and 10 bar.
Figure 6: Feed water connection
An initial fill by means of the feed water can only be carried out by activating the corresponding
controller function. Further details are given in
Chapter 6.2.15 Flushing the cold water circuit.
If you operate your chiller with a water / glycol mixture and only feed in pure water, you must check
the glycol content of the circuit water regularly and adjust if necessary.
3.15. Flow control switch
Optionally, the Vario-Line units can also be equipped with a flow control switch. The flow control
switch triggers if the flow drops and falls below the switching value. The corresponding signal can
be tapped, floating, at the terminal in the control cabinet.
3.16. Water circuit made free from non-ferrous metals
If you machine is made free from non-ferrous metals, all parts of the chiller's cold water circuit
touched by the media are free from non-ferrous metals. Several components such as the
evaporator and pump have been adjusted. The materials used for the water circuit are given in
Table 6 .
3.17. Conductance monitoring
In the conductance monitoring option the conductance is recorded by a measuring probe in the
tank. A warning is output depending on whether the specified conductance setpoint is exceeded or
not reached (see parameter list).
3.18. Conductance control
In the conductance control option the conductance is recorded via a measuring probe in the tank.
If the required conductance is exceeded, a regulating valve opens and allows a partial flow rate of
the liquid to flow via DI cartridge installed in the bypass. The regulating valve closes as soon as the
required conductance has been reached once again.
3.19. Special voltage
If your machine is equipped for a special voltage, electrical components have been adjusted. Your
machine must be operated only under the voltage noted on the nameplate.