DE DIETRICH GTU C 330 - Manual (Page 16)

16
GTU C 330 24/11/08 - 300017846-001-B
7. Checking and maintenance
7 Checking and maintenance
7.1 Checks
Make the following checks at least 1 time a year:
- Safety devices
- System pressure
- Checking burner safety
- Checking the safety thermostat
- Condensates neutralisation system Carry out the following maintenance at least 1 time a year:
- Cleaning the burner
- Cleaning of the heating body
- Cleaning of the condenser
- Cleaning the siphon
- Cleaning the flue gas circuit
7.2 Hydraulic pressure
Checking the hydraulic pressure. The hydraulic pressure must be a
minimum of 0.8 bars. Adjust the pressure if necessary, avoiding a
sudden influx of cold water into the boiler when it is hot.
This operation should be required only a few times in each heating
season, with very low quantities of water; otherwise, look for the leak
and repair it.
7.3 Draining
We advise you against draining the system unless it is absolutely
necessary.
7.4 Maintenance

The boiler will only operate efficiently if the exchange
surfaces are kept clean.
Have the required checks and services done.
` The boiler must be serviced and fully cleaned and the flue gas
conduit swept by a qualified professional at least 1 times per
year.
` The condenser and the condensates neutralisation station must
serviced at least once a year by a qualified professional.
The siphon and the condensates evacuation conduit must
imperatively be checked and cleaned at least once a year.