KKT chillers vBoxX 10, Инструкция по эксплуатации

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4.4.3. Low pressure monitoring
If the low pressure in the refrigerating circuit of your system is too low for the specified liquid there
is a risk of frost. For this reason the low pressure is monitored continuously and the compressor is
switched off if the pressure falls below a minimum value. If the low pressure has increased to a
minimum value the compressor is re-released. If the low-pressure monitor has triggered, please
follow the instructions in Chapter Troubleshooting (see
Appendix II).
4.4.4. Flow monitoring
If the flow rate of the cold water, which is pumped through the evaporator, is too low there is a risk
of frost. For this reason the flow is monitored continuously via the evaporator. If the flow rate is only
approx. 50 % of the nominal flow rate, the "Flow warning" message is output. If the flow rate falls
below the minimum value of 20 % the compressor is switched off and the "Flow stop" message is
output. In this case please follow the instructions in the Troubleshooting chapter (see
Appendix II).
4.4.5. Oil temperature monitoring
In order for the compressor to start up without any problems even in low ambient temperatures, all
Vario-Line units are equipped with so-called oil temperature monitoring. To this end the hot gas
temperature is monitored. If the hot gas temperature is below the limit value of 6°C the oil is heated
by the frequency converter until the limit value is reached again. This function is only ensured if the
main switch is switched on.
4.4.6. Personal protective equipment for operating the machine
Operating the machine means carrying out setting and adjustment measures at the operator
display. When operating the machine the façade panels are mounted and the machine is
completely closed. No protective equipment is required.
We recommend hearing protection for people in workplaces, in which they are continuously in the
direct surroundings of the chiller. We refer to the sound emission information included in the
technical specifications.
4.5. Personal protective equipment for service work
Service work on the machine includes all work on the machine for which the machine is opened
and one or several façade panels are dismantled. In particular, this includes cleaning work in
accordance with
Chapter 9 Cleaning and maintenance work in accordance with Chapter 10 Service .
Before work is carried out on the chiller the protective equipment described in Table 9: Definition
of the safety symbols must be used.