Cetetherm Mini Plus CM737, Инструкция по установке, обслуживанию и эксплуатации

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Cetetherm Mini Plus CM737
Installation, service and operating instruction
4
1.6 General warnings
The installation work must be carried out by an authorized installation contractor. Before the
system is taken into operation, it must be pressure tested in accordance with relevant
regulations.
The temperature and the pressure of the district heating water are very high. Only qualified
technicians can work with the district heating substation. Incorrect operation may cause serious
personal injury and result in damage to the building.
If the hot water temperature is set too high, people may be scalded. If the hot water temperature
is set too low, unwanted bacteriological growth may occur in the hot water system. This can
result in serious personal injury.
Parts of the substation may get very hot and should not be touched.
Before the substation is connected to the electrical supply, make sure that the secondary heating
system is topped up with water. Starting up the system without water will damage the circulation
pump.
The substation comes prepared with an electrical plug to be connected to the main supply. The
strain relief clips of the cable must be fitted so that there is no risk of damage. If necessary, the
plug-and-socket connection can be replaced with a permanent installation with an all-pole isolate
switch. This must be carried out by a qualified electrician.
When starting up the district heating substation, to avoid the risk of scalding, make sure that no-
one draws any hot water until the hot water temperature has been adjusted
.
Start district heating circulation by first opening the valve in the district heating supply and then
return lines, to avoid pollutions in the system. Open the valves slowly to avoid pressure surges.
Do the same way with the heating circuit, first open the valve for heating return then supply .
Do not shut of the electrical supply to the operator control panel. This will damage the circulation
pump, valves, actuators etc.