Check Points Before Commissioning - DeDietrich GTU C 330 Installation And Service Manual

5.2 Check points before commissioning

1. Check that the installation and the boiler are full of water and
correctly vented:
- The installation is bled of air from the top by opening one or more bleed valves. Close the bleed valve(s) when water comes out.
- Air vent on the condenser
- Degum the pump if necessary
- 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.
0
I
2. Check that connectors are leak tight
3. Check the operation of the heating safety valve
4. Check that the heating pumps are working correctly
5. Check that the safety thermostat on the condenser is switched on ;
- Unscrew the protection cap
- Press the resetting button of the burner
6. If necessary, adjust the installation parameters and the control unit programming
7. Check that all settings and safety devices are working correctly
8. Check that the valves on the heating flow and return are open
9. Check the opening on the burner valves
10. Check if the siphon is filled with water
11. Check that the admission of air is guaranteed
30
C001962
1
2
GTU C 330 07/04/2009 - 300016152-001-C