Cetetherm Midi Compact TA
Installation, service and operating instruction
25
9 Maintenance and repairs
When carrying out repairs, please contact your local service partner.
Before starting out repairs always close the correct shutoff valves.
When dismounting a component there will be water coming out, hot and under pressure.
9.1 Cleaning the district heating strainer
Service actions must be carried out by an authorized service technician.
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.
Before starting out repairs close the
DH supply
and
DH return
shutoff valves.
After finishing repair, open the shutoff valves. Start with
DH supply
and then the
return
line, to
avoid pollutions in the system. Open the valves slowly to avoid pressure surges.
1. Disconnect the power supply to the substation.
2. Close the shut-off valves.
3. Use a wrench and release the strainer holder and remove the
cartridge.
4. Clean the strainer in water and refit the cartridge. Screw the
strainer holder with a momentum of 10-20 Nm.
5. Open the shutoff valves and connect the power supply to the
substation.
Picture 18
